1 00:00:07,980 --> 00:00:08,470 [Powered by Google Translate] ZAMYLA Chan: Kull dritt. 2 00:00:08,470 --> 00:00:10,960 Hello, kulħadd, u jilqgħu għall Walkthrough 0. 3 00:00:10,960 --> 00:00:12,670 Zamyla isem My, u jien ser tkun twassal dawn 4 00:00:12,670 --> 00:00:14,450 walkthroughs din is-sena. 5 00:00:14,450 --> 00:00:17,650 Fil CS50, kull sett problema hija akkumpanjata minn walkthrough 6 00:00:17,650 --> 00:00:20,390 fejn aħna ser jgħaddu sett problema tal-ġimgħa, kellem dan 7 00:00:20,390 --> 00:00:22,760 permezz, kellem kif tibda, jiddiskutu differenti 8 00:00:22,760 --> 00:00:26,120 tekniki u tips biex verament jiksru l-problema stabbilita fis 9 00:00:26,120 --> 00:00:27,600 xi gdim maniġġabbli. 10 00:00:27,600 --> 00:00:29,630 Jien ukoll verament kuntenti li tirrispondi xi mistoqsijiet li inti 11 00:00:29,630 --> 00:00:31,440 jkollhom fuq is-sett problema. 12 00:00:31,440 --> 00:00:33,320 Mingħajr aktar dewmien, ninsab kuntenta int hawn, jekk int 13 00:00:33,320 --> 00:00:35,590 hawn personalment jew irfinar fil online. 14 00:00:35,590 --> 00:00:36,840 Ejja tibda. 15 00:00:39,940 --> 00:00:42,420 >> Allura l-ewwel p-sett fil-CS50 - 16 00:00:42,420 --> 00:00:44,590 fil-fatt, aħna mhux se jsibu rwieħhom ittajpjar u magni 17 00:00:44,590 --> 00:00:45,630 Jittieħed kodiċi għadhom pjuttost. 18 00:00:45,630 --> 00:00:47,360 Aħna fil-fatt se tkun qed tuża Scratch, li huwa 19 00:00:47,360 --> 00:00:49,860 programm li jippermetti li jagħmlu xi drag u qatra 20 00:00:49,860 --> 00:00:50,780 programmazzjoni. 21 00:00:50,780 --> 00:00:54,020 U hekk anke jekk aħna mhux qed ittajpjar, huwa verament jippermetti li 22 00:00:54,020 --> 00:00:55,870 tesplora xi wħud mill-kunċetti fundamentali li 23 00:00:55,870 --> 00:00:58,710 aħna ser tuża kollha matul CS50. 24 00:00:58,710 --> 00:01:01,260 Issa, xi wħud minn dawn il-kunċetti huma 25 00:01:01,260 --> 00:01:02,860 elenkati hawn fil-Toolbox. 26 00:01:02,860 --> 00:01:05,830 What I tixtieq tagħmel għal kull walkthrough huwa preżenti inti kollha 27 00:01:05,830 --> 00:01:08,390 ma 'sett ta' għodod li tista 'tuża għall-walkthrough. 28 00:01:08,390 --> 00:01:09,140 U għalhekk, tinkwetax. 29 00:01:09,140 --> 00:01:11,710 Aħna ser jmorru fuq kollha ta 'dawn it-termini u kollha ta' dawn 30 00:01:11,710 --> 00:01:13,320 teoriji matul il-walkthrough. 31 00:01:13,320 --> 00:01:15,790 Issa, jekk inti tispiċċa bl-użu kollha ta 'dawn l-għodda, jew biss 32 00:01:15,790 --> 00:01:19,340 xi wħud minnhom, huwa verament tajjeb li tkun taf dak li qed mgħammra 33 00:01:19,340 --> 00:01:21,225 ma tkun tista 'tindirizza l-sett problema. 34 00:01:25,650 --> 00:01:29,110 >> Għalhekk fl Scratch, l-Lingo ewwel li għandek bżonn tkun taf huwa dak 35 00:01:29,110 --> 00:01:30,110 a Sprite huwa. 36 00:01:30,110 --> 00:01:34,280 Allura kull oġġett jew kull natura kemm qattus kelb 37 00:01:34,280 --> 00:01:36,450 jew ballun, jissejjaħ Sprite. 38 00:01:36,450 --> 00:01:40,710 U għalhekk, jekk irrid, jiġifieri, żewġ qtates - jekk dawn qed 39 00:01:40,710 --> 00:01:41,360 identiċi - 40 00:01:41,360 --> 00:01:45,630 I bzonn li jagħmlu żewġ sprites separati Scratch. 41 00:01:45,630 --> 00:01:49,250 U hekk sprites ikollhom skripts assoċjati magħhom. 42 00:01:49,250 --> 00:01:51,360 Skripts huma attwalment dak li int se tkun bini - 43 00:01:51,360 --> 00:01:53,290 jittrattienu u twaqqa - bi blokki tiegħek. 44 00:01:53,290 --> 00:01:57,490 U iva, liema do skripts huwa tip ta 'jiddetermina u jiddefinixxi kif 45 00:01:57,490 --> 00:02:00,090 il-Sprite iġib ruħu. 46 00:02:00,090 --> 00:02:03,130 Sprites mhumiex attwalment biss immaġini, għaliex għandna 47 00:02:03,130 --> 00:02:05,790 kostumi wkoll assoċjati ma 'l-sprites dak it-tip ta' 48 00:02:05,790 --> 00:02:07,430 jiddeterminaw liema l-Sprite Dehra. 49 00:02:07,430 --> 00:02:11,000 U inti jista 'jkollhom aktar minn wieħed kostum għal Sprite mogħtija. 50 00:02:11,000 --> 00:02:14,860 >> Allura f'xi punt matul il-programm Scratch tiegħek, kif aħna ser juru 51 00:02:14,860 --> 00:02:17,150 aktar tard illum waqt il-walkthrough, inti tista 'attwalment 52 00:02:17,150 --> 00:02:19,640 jibdlu l-kostumi ta 'Sprite tiegħek biex jagħmluha ħarsa kemm 53 00:02:19,640 --> 00:02:22,490 kemmxejn differenti jew kompletament differenti. 54 00:02:22,490 --> 00:02:26,290 U hekk hemm tliet modi ta 'ħolqien ta' Sprite fil scratch. 55 00:02:26,290 --> 00:02:28,970 Wieħed, inti tista 'tiġbed tiegħek stess fl s Scratch 56 00:02:28,970 --> 00:02:30,430 mibnija fil-editur żebgħa. 57 00:02:30,430 --> 00:02:35,240 Tista 'upload image tiegħek, tuża waħda mill s Scratch mibnija fil- 58 00:02:35,240 --> 00:02:38,590 dawk, jew, l-aħħar għażla, jiksbu Sprite każwali. 59 00:02:38,590 --> 00:02:41,760 Issa, jekk tkun qed tħossok partikolarment xxurtjati, imbagħad I 60 00:02:41,760 --> 00:02:45,120 merħba li inti tipprova Xorti tiegħek u joħolqu Sprite każwali. 61 00:02:48,680 --> 00:02:50,890 >> Allura kollha ta 'l sprites huma mqiegħda fuq 62 00:02:50,890 --> 00:02:52,290 l-istadju fil-Scratch. 63 00:02:52,290 --> 00:02:55,130 L-istadju - nistgħu titratta dan bħala tila tagħna. 64 00:02:55,130 --> 00:02:57,510 U għalhekk kollha tal-sprites huma mqiegħda fuq il-palk. 65 00:02:57,510 --> 00:03:02,920 U f'dan l-istadju, x'tagħmel huwa jippermetti kollha tal-sprites 66 00:03:02,920 --> 00:03:04,160 jimxu madwar fuq dan. 67 00:03:04,160 --> 00:03:09,380 U bħad sprites, l-istadju għandha wkoll skripts. 68 00:03:09,380 --> 00:03:11,930 U hekk dawn skripts, li jqiegħdu lilhom fuq il-palk - 69 00:03:11,930 --> 00:03:14,230 huwa verament utli meta, jgħidu, inti għandek b'kitba li ma 70 00:03:14,230 --> 00:03:17,720 eżattament jappartjenu għal waħda Sprite speċifika, iżda pjuttost 71 00:03:17,720 --> 00:03:20,860 tappartjieni għall sprites multipli jew sempliċiment, b'mod ġenerali, xi ħaġa 72 00:03:20,860 --> 00:03:21,870 li inti trid tagħmel. 73 00:03:21,870 --> 00:03:25,070 Allura inti tista post dawk skripts fuq il-palk minflok, u li 74 00:03:25,070 --> 00:03:28,010 Ikun disinn ftit aħjar. 75 00:03:28,010 --> 00:03:32,680 Issa, filwaqt li inti jista 'jkollhom sprites multipli, huwa tajjeb li 76 00:03:32,680 --> 00:03:34,420 iżomm f'moħħu li inti tista 'biss ikollha stadju wieħed. 77 00:03:34,420 --> 00:03:37,820 Imma stadji ukoll sfond. 78 00:03:37,820 --> 00:03:40,590 Kontrarjament għall-kostumi, bħal sprites tagħmel, stadji jkollhom 79 00:03:40,590 --> 00:03:41,100 sfondi. 80 00:03:41,100 --> 00:03:44,340 U għal darb'oħra, inti tista 'jew tiġbed tiegħek stess jew upload tiegħek 81 00:03:44,340 --> 00:03:46,140 immaġni għall-użu bħala sfond. 82 00:03:49,770 --> 00:03:54,100 >> Allura ħadd ma jkollu xi mistoqsijiet qabel immorru fuq? 83 00:03:54,100 --> 00:03:54,380 OK. 84 00:03:54,380 --> 00:03:56,880 Ħossok liberu li jinterrompu lili dak matul il-walkthrough, u 85 00:03:56,880 --> 00:03:58,780 Ninsab kuntenta li tirrispondi xi mistoqsijiet li għandek. 86 00:04:02,750 --> 00:04:03,230 OK. 87 00:04:03,230 --> 00:04:05,950 Allura meta tibda program Sprite tiegħek, dak li int ser 88 00:04:05,950 --> 00:04:08,430 do huwa inti qed tmur biex ikklikkja l-bandiera aħdar. 89 00:04:08,430 --> 00:04:10,820 Imma jekk inti ma jgħaqqdu xejn biex din il-blokka dritt 90 00:04:10,820 --> 00:04:13,400 hawn, allura xejn fil-fatt jiġri. 91 00:04:13,400 --> 00:04:16,450 Minħabba, tara, dak l-iskripts u l-istadju jeħtieġ li 92 00:04:16,450 --> 00:04:20,149 tagħmel huwa attwalment jafu biex jirrispondu għall-avveniment - 93 00:04:20,149 --> 00:04:22,360 dan huwa dak li aħna jsejħulhom, avvenimenti - tal-bandiera aħdar 94 00:04:22,360 --> 00:04:23,200 qed għafast. 95 00:04:23,200 --> 00:04:26,840 Għalhekk ikollok bżonn li fil-fatt jagħtu blokki għall-kanal fil- 96 00:04:26,840 --> 00:04:30,270 qiegħ ta 'dak blokka tal-bandiera aħdar għafast, u allura l- 97 00:04:30,270 --> 00:04:32,670 programm se tkun taf x'għandek tagħmel u kif tirrispondi għall- 98 00:04:32,670 --> 00:04:35,700 bandiera aħdar qed għafast. 99 00:04:35,700 --> 00:04:38,180 >> Ukoll, dak li jiġi wara dak? 100 00:04:38,180 --> 00:04:43,930 Well, aħna għandna pletora ta 'blokki Scratch għall-użu, u 101 00:04:43,930 --> 00:04:47,150 meta l-laħam, verament, tal-programm tiegħek tinsab f'dawn 102 00:04:47,150 --> 00:04:48,000 dikjarazzjonijiet. 103 00:04:48,000 --> 00:04:49,900 U għalhekk dawn id-dikjarazzjonijiet huma konvenjenti 104 00:04:49,900 --> 00:04:51,270 organizzat mill-kulur. 105 00:04:51,270 --> 00:04:54,970 Inti għandek l-azzjonijiet relatati mal-moviment, 106 00:04:54,970 --> 00:04:56,930 , ħoss jistenna, eċċetera. 107 00:04:56,930 --> 00:04:59,530 U għalhekk inti tista 'tara inti tista' tinnaviga bejniethom fil- 108 00:04:59,530 --> 00:05:02,480 tabs fil-programm Scratch tiegħek. 109 00:05:02,480 --> 00:05:04,870 U għalhekk, filwaqt li inti ser ikollok affarijiet oħra mibnija madwaru, 110 00:05:04,870 --> 00:05:08,520 dak id-dikjarazzjonijiet fil-fatt tagħmel huwa attwalment jirrakkonta l- 111 00:05:08,520 --> 00:05:10,380 sprites jew l-istadju li jagħmlu xi ħaġa. 112 00:05:10,380 --> 00:05:13,450 Kontrarjament għall biss qal, OK, meta inti tagħmel dan, l- 113 00:05:13,450 --> 00:05:16,660 dikjarazzjonijiet effettivament ikun fihom il-laħam reali ta 'dan. 114 00:05:19,410 --> 00:05:22,210 Ejja ngħidu li inti tixtieq li biss tesegwixxi ċerti azzjonijet, jiġifieri 115 00:05:22,210 --> 00:05:26,180 inti biss trid li l-qattus li meow meta xi ħaġa ċerta jiġri. 116 00:05:26,180 --> 00:05:28,430 Aħna jistgħu jieħdu vantaġġ ta Booleans, li inti tgħallimt fil 117 00:05:28,430 --> 00:05:29,470 lecture 1. 118 00:05:29,470 --> 00:05:32,580 U għalhekk dawn huma espressjonijiet li jevalwaw l- 119 00:05:32,580 --> 00:05:34,140 jew vera jew falza. 120 00:05:34,140 --> 00:05:37,510 U hekk dawn huma identifikati fil Scratch mill-- 121 00:05:37,510 --> 00:05:42,360 tara l-angoli fit-tmiem ta 'dawk il-blokki. 122 00:05:42,360 --> 00:05:45,420 U hekk ikollok varjetà ta 'tipi differenti ta' Booleans. 123 00:05:45,420 --> 00:05:49,550 Inti għandek "huwa l-aktar qed ippressat isfel," "ma 2 flimkien ma '2 124 00:05:49,550 --> 00:05:53,830 ekwivalenti għal 5, "jew" hija l-utent ippressar isfel ewlieni ċerta fuq 125 00:05:53,830 --> 00:05:55,510 il-keyboard? " 126 00:05:55,510 --> 00:05:57,210 >> Issa, inti tista 'mhux biss jużaw dawn waħdu. 127 00:05:57,210 --> 00:06:00,970 Dak li għandek tagħmel hu li jinġabru flimkien ma 'kundizzjoni. 128 00:06:00,970 --> 00:06:04,420 Allura l-kundizzjoni hemmhekk taħt il-tab kontroll fil Scratch. 129 00:06:04,420 --> 00:06:07,350 U hekk dawn konvenjenti ikollhom placeholder ftit li 130 00:06:07,350 --> 00:06:10,940 turi l-għamla tal-blokka li għandek bżonn biex jitqiegħed fis dan. 131 00:06:10,940 --> 00:06:14,720 Allura jiddependi fuq il-kuntest tas-sitwazzjoni, inti tista 'tagħżel 132 00:06:14,720 --> 00:06:17,600 a Boolean u imbagħad qiegħdu ġewwa kundizzjoni tiegħek. 133 00:06:17,600 --> 00:06:19,570 U hemm ikollok dikjarazzjoni kondizzjonali. 134 00:06:19,570 --> 00:06:23,030 Jekk inti tpoġġi dikjarazzjonijiet ġewwa li blokk, imbagħad inti għandek 135 00:06:23,030 --> 00:06:26,980 struttura maħluqa, fejn ladarba ċerta kondizzjoni hija sodisfatta fuq 136 00:06:26,980 --> 00:06:30,494 fuq ix-xellug, inti mbagħad tesegwixxi l-istqarrija. 137 00:06:30,494 --> 00:06:31,462 Iva? 138 00:06:31,462 --> 00:06:33,720 >> STUDENT: Jekk varjabbli jirrappreżenta numru, tista 'inti 139 00:06:33,720 --> 00:06:36,302 jużaw il-varjabbli ġewwa l Boolean, bħal dak ħadra, 140 00:06:36,302 --> 00:06:36,790 per eżempju? 141 00:06:36,790 --> 00:06:37,540 ZAMYLA Chan: Iva, inti tista '. 142 00:06:37,540 --> 00:06:41,500 Inti tista 'ttawwal u qatra l-valur varjabbli ġewwa l- 143 00:06:41,500 --> 00:06:42,750 ċirkolari forma hemmhekk. 144 00:06:48,820 --> 00:06:52,160 >> Issa, wieħed mill-vantaġġi ta 'kompjuters hija l-qawwa kbira 145 00:06:52,160 --> 00:06:54,980 u l-veloċità li fiha tista 'tesegwixxi proċessi ripetittivi. 146 00:06:54,980 --> 00:07:00,370 U għalhekk, minflok, ngħidu aħna, tirrepeti struzzjoni fuq 147 00:07:00,370 --> 00:07:03,020 u aktar u aktar mill-ġdid u fil-fatt ittajpjar li minn - jew 148 00:07:03,020 --> 00:07:05,000 f'dan il-każ, fil Scratch, jittrattienu u twaqqa u 149 00:07:05,000 --> 00:07:05,960 jittrattienu u twaqqa - 150 00:07:05,960 --> 00:07:08,750 dak li nistgħu nagħmlu huwa jiġbor dan fil-linja. 151 00:07:08,750 --> 00:07:11,640 U għalhekk, ħoloq jistgħu jintużaw biex jew tesegwixxi l-affarijiet 152 00:07:11,640 --> 00:07:14,750 infinitament ma 'linja għal dejjem, jew għal 153 00:07:14,750 --> 00:07:15,880 jistabbilixxu numru ta 'drabi - 154 00:07:15,880 --> 00:07:20,800 jiġifieri, irrepeti "jgħidu hi" 10 darbiet jew sakemm ċertu 155 00:07:20,800 --> 00:07:22,040 kondizzjoni huwa veru. 156 00:07:22,040 --> 00:07:26,370 U għalhekk għal darb'oħra, inti tara li Scratch huwa ssemmi li meta 157 00:07:26,370 --> 00:07:29,540 għandek kundizzjoni bħal "ripetuta sakemm," allura l-unika 158 00:07:29,540 --> 00:07:34,760 ħaġa li se jaqbel ġewwa hemm valur Boolean. 159 00:07:34,760 --> 00:07:35,120 Kull dritt. 160 00:07:35,120 --> 00:07:38,170 >> Allura issa, aħna nafu li nistgħu jirrappreżentaw ripetittivi 161 00:07:38,170 --> 00:07:39,840 proċessi ġewwa tal-linji. 162 00:07:39,840 --> 00:07:42,880 Tista 'tara għaliex xi ħaġa bħal din tista' ma tkunx ideali. 163 00:07:42,880 --> 00:07:45,600 Hija ma jinstallax fuq il-pjastra. 164 00:07:45,600 --> 00:07:48,500 Essenzjalment, hija biss jagħmel l-istess ħaġa aktar u aktar mill-ġdid 165 00:07:48,500 --> 00:07:49,340 10 darbiet, fil-fatt. 166 00:07:49,340 --> 00:07:53,380 Hija jiċċaqlaq 10 passi, jgħid bonjour, jiċċaqlaq 10 passi, jgħid bonjour. 167 00:07:53,380 --> 00:07:56,140 Allura issa tista 'tara li ladarba għandna loops, xi ħaġa bħal 168 00:07:56,140 --> 00:07:58,420 dan huwa ħafna aħjar. 169 00:07:58,420 --> 00:08:02,690 Huwa iqsar, huwa iżgħar, u fil-fatt tikkompleta l- 170 00:08:02,690 --> 00:08:03,610 istess ħaġa. 171 00:08:03,610 --> 00:08:06,420 Issa, fil Scratch dan ma jista 'jagħmel ħafna ta' differenza, imma 172 00:08:06,420 --> 00:08:08,510 hija effettivament jiffranka inti xi żmien. 173 00:08:12,720 --> 00:08:16,800 >> Allura fuq l-espressjoni varjabbli - 174 00:08:16,800 --> 00:08:20,260 inti tista 'attwalment jużaw fatturi varjabbli u tpoġġihom ġewwa ta' 175 00:08:20,260 --> 00:08:20,930 kundizzjonijiet. 176 00:08:20,930 --> 00:08:23,490 Kif espress hemm dritt, tara għandna varjabbli jismu 177 00:08:23,490 --> 00:08:26,810 "Kontro," u aħna qed jsarraf dak li tara jekk 178 00:08:26,810 --> 00:08:28,040 huwa inqas minn 0. 179 00:08:28,040 --> 00:08:30,900 Allura varjabbli huma essenzjalment, Id jgħidu, 180 00:08:30,900 --> 00:08:32,330 kontenituri għall-valuri. 181 00:08:32,330 --> 00:08:36,330 Fil Scratch, dawk it-tipi ta 'valuri tista' tkun jew kliem jew 182 00:08:36,330 --> 00:08:37,390 dawn jistgħu jiġu numri. 183 00:08:37,390 --> 00:08:41,860 U għalhekk, ma 'dawn il-varjabbli, dak li nistgħu nagħmlu magħhom hija aħna 184 00:08:41,860 --> 00:08:42,970 tista 'tistabbilixxi valur tagħhom. 185 00:08:42,970 --> 00:08:46,590 Allura fl-ewwel eżempju hawn, aħna għandna l-eżempju ta 'test 186 00:08:46,590 --> 00:08:50,470 li jkun fiha l-valur "Hello, Dinja!" Fit-tieni eżempju, 187 00:08:50,470 --> 00:08:53,220 huwa preżunt li diġà għandna varjabbli jismu 188 00:08:53,220 --> 00:08:56,020 "Kontra", u f'dak il-każ, aħna qed dejjem jinbidel bi 3. 189 00:08:56,020 --> 00:08:58,170 Aħna inkrementazzjoni lilha bi 3. 190 00:08:58,170 --> 00:09:01,680 U mbagħad fl-aħħar eżempju, il-varjabbli jistgħu jiġu mkaxkra 191 00:09:01,680 --> 00:09:04,320 li għandhom jiġu stabbiliti espressjoni Boolean. 192 00:09:06,830 --> 00:09:12,200 >> Issa, meta inti toħloq varjabbli, dak li għandek 193 00:09:12,200 --> 00:09:16,900 tiddeċiedi hija jekk inti tagħmel l-varjabbli għal kulħadd ta 'l- 194 00:09:16,900 --> 00:09:19,380 sprites fil-programm Scratch tiegħek, jew biss għall- 195 00:09:19,380 --> 00:09:22,710 ispeċifiċitajiet Sprite fejn inti ħadthom magħżula meta inti tagħmel 196 00:09:22,710 --> 00:09:23,930 il-varjabbli. 197 00:09:23,930 --> 00:09:27,480 U hekk din hija deċiżjoni importanti ħafna biex jagħmlu. 198 00:09:27,480 --> 00:09:30,100 U huwa verament jaqa 'għal dak ambitu trid li l- 199 00:09:30,100 --> 00:09:31,200 varjabbli li jkollhom. 200 00:09:31,200 --> 00:09:35,170 Għalhekk per eżempju, eżempju ta 'portata lokali tkun jekk inti 201 00:09:35,170 --> 00:09:38,370 jagħżlu biss għal din Sprite li jkollhom l-varjabbli. 202 00:09:38,370 --> 00:09:43,250 Allura dan ikun ifisser li biss dak Sprite tkun tista ' 203 00:09:43,250 --> 00:09:44,440 aċċess dak il-varjabbli. 204 00:09:44,440 --> 00:09:46,670 Biss li Sprite tkun tista 'tara dan, 205 00:09:46,670 --> 00:09:48,020 bidla, timmodifika dan. 206 00:09:48,020 --> 00:09:49,910 Jekk inti tagħżel għall-li jkollhom firxa globali - 207 00:09:49,910 --> 00:09:52,520 b'tali mod li jekk inti tgħidli għal kull sprites, jekk 208 00:09:52,520 --> 00:09:53,960 inti tagħżel din l-għażla - 209 00:09:53,960 --> 00:09:57,780 allura dan ifisser li l-istadju kif ukoll kollha tal-sprites 210 00:09:57,780 --> 00:10:01,350 se tkun kapaċi li tara, timmodifika, u aċċess dak il-varjabbli li 211 00:10:01,350 --> 00:10:04,420 inti stajt maħluqa. 212 00:10:04,420 --> 00:10:07,080 Kwalunkwe mistoqsijiet s'issa fuq varjabbli jew xi ħaġa? 213 00:10:07,080 --> 00:10:08,674 Iva. 214 00:10:08,674 --> 00:10:11,248 >> STUDENT: Għall-fatturi varjabbli, jista 'jkollok żewġ varjabbli ta' 215 00:10:11,248 --> 00:10:14,300 l-istess isem, jekk dawn qed fuq sprites differenti? 216 00:10:14,300 --> 00:10:16,370 ZAMYLA Chan: Sakemm huma sprites lokali --- 217 00:10:18,870 --> 00:10:20,700 ah, iva, sorry. 218 00:10:20,700 --> 00:10:24,010 Għalhekk il-kwistjoni kienet jekk inti jista 'jkollhom żewġ varjabbli ta' 219 00:10:24,010 --> 00:10:28,890 l-istess isem fi programm u jekk ikollok żewġ varjabbli ma 220 00:10:28,890 --> 00:10:32,760 l-istess isem, iżda huma t-tnejn sprites lokali, hekk Sprite waħda, 221 00:10:32,760 --> 00:10:36,070 il-qattus, għandha varjabbli isem "kontro," u Sprite 2, il- 222 00:10:36,070 --> 00:10:38,870 kelb, għandha varjabbli imsejjaħ "kontro," sakemm dawk 223 00:10:38,870 --> 00:10:43,040 huma ż-żewġ sprites lokali, allura l-iskop tagħhom ma jestendix għal 224 00:10:43,040 --> 00:10:44,540 il-bqija tal-programm. 225 00:10:44,540 --> 00:10:47,080 U għalhekk l-ebda sprites oħra jew il- 226 00:10:47,080 --> 00:10:48,360 istadju se jiksbu konfuż. 227 00:10:53,860 --> 00:10:54,210 Kull dritt. 228 00:10:54,210 --> 00:10:58,230 >> So I issemma qabel il-punt tad-dħul meta kellna l- 229 00:10:58,230 --> 00:11:01,560 meta jkunu ħodor blokk bandiera għafast. 230 00:11:01,560 --> 00:11:05,350 U għalhekk dak li hu - 231 00:11:05,350 --> 00:11:08,880 jgħid, OK, meta l-avveniment jiġri li l-bandiera ħadra hija 232 00:11:08,880 --> 00:11:11,450 għafast, dan huwa dak li għandek tagħmel. 233 00:11:11,450 --> 00:11:13,220 U għalhekk dan mhux effettivament il-każ biss 234 00:11:13,220 --> 00:11:14,380 li għandna fil Scratch. 235 00:11:14,380 --> 00:11:16,060 Għandna wkoll avvenimenti oħra. 236 00:11:16,060 --> 00:11:18,320 Allura aħna għandna, per eżempju, meta ċavetta fuq 237 00:11:18,320 --> 00:11:19,290 il-keyboard hija ppressata. 238 00:11:19,290 --> 00:11:23,660 U inti tista 'effettivament jagħżlu l-ittri A sa Z, 0 239 00:11:23,660 --> 00:11:27,270 sa 9, jew il-keys vleġġa. 240 00:11:27,270 --> 00:11:30,770 U allura aħna għandna wkoll avvenimenti oħra, bħal meta tiegħek 241 00:11:30,770 --> 00:11:33,150 Sprite hija għafast. 242 00:11:33,150 --> 00:11:36,590 U hekk meta tibda ma 'dan, tinnota x-xejra prinċipali 243 00:11:36,590 --> 00:11:38,950 hija li huma biss ikollhom groove fuq il-qiegħ, u għalhekk 244 00:11:38,950 --> 00:11:42,950 allura li, għal darb'oħra, ċwievet inti f'dak xejn tagħti aktar 245 00:11:42,950 --> 00:11:43,640 li jimblukkaw. 246 00:11:43,640 --> 00:11:48,770 Inti tibni minn dan u hawn taħt. 247 00:11:48,770 --> 00:11:53,040 >> Issa, ngħidu aħna, x'jiġri jekk irridu xi avveniment li jiġri biss 248 00:11:53,040 --> 00:11:58,200 meta, I do not know, qattus qed imiss sezzjoni ta ' 249 00:11:58,200 --> 00:11:59,830 l-istadju jew xi ħaġa bħal dik? 250 00:11:59,830 --> 00:12:02,420 Aħna fil-fatt ma jkollhom ebda mibnija fil- 251 00:12:02,420 --> 00:12:04,410 F'każ li turi dan. 252 00:12:04,410 --> 00:12:07,850 Allura dak li aħna ser ikollok tagħmel huwa attwalment joħolqu avveniment tagħna stess. 253 00:12:07,850 --> 00:12:09,950 U li sejjaħ xandir. 254 00:12:09,950 --> 00:12:13,070 Allura meta inti tixtieq li sinjal li ċertu ġara, 255 00:12:13,070 --> 00:12:16,910 allura inti tuża - fil-tab-kontroll, hemm blokk imsejjaħ 256 00:12:16,910 --> 00:12:20,400 "Xandira." U hekk imbagħad, inti ser tip fl-isem tal- 257 00:12:20,400 --> 00:12:24,990 każ li inti tixtieq li jixxandru, u mbagħad skond liema 258 00:12:24,990 --> 00:12:26,350 Sprite jew sprites - 259 00:12:26,350 --> 00:12:28,640 inti jista 'jkollhom sprites multipli reazzjoni għal dan il-messaġġ - 260 00:12:28,640 --> 00:12:31,460 jew l-istadju se jkollhom jimmaniġġjaw dan, se jkollhom 261 00:12:31,460 --> 00:12:34,970 jirċievu dan, se jkollhom jgħidu, OK, nifhem li dan għandu 262 00:12:34,970 --> 00:12:37,850 ġara, hekk jien ser jagħmlu dan magħha. 263 00:12:37,850 --> 00:12:40,850 U hekk kull meta inti xxandar avveniment, li bl- 264 00:12:40,850 --> 00:12:44,870 qbil li kwalunkew li Sprite jew ieħor Sprite hija 265 00:12:44,870 --> 00:12:47,860 se jkollhom biex jirċievu dak l-avveniment u jirrispondi. 266 00:12:52,610 --> 00:12:55,710 >> Issa, il-kunċett aħħar qabel we jsibu rwieħhom eżempju attwali 267 00:12:55,710 --> 00:12:58,390 ta 'programm scratch huwa ħjut. 268 00:12:58,390 --> 00:13:02,110 Ħjut Allura huwa meta l-kompjuter tiegħek huwa esekuzzjoni 269 00:13:02,110 --> 00:13:04,320 proċessi simultanji fl-istess ħin. 270 00:13:04,320 --> 00:13:06,940 I garanzija li inti lkoll ħadu vantaġġ ta ' 271 00:13:06,940 --> 00:13:09,810 ħjut meta aħna aħna qed jaraw a movie fil-ħin istess 272 00:13:09,810 --> 00:13:11,540 ittajpjar esej jew xi ħaġa bħal dik. 273 00:13:11,540 --> 00:13:14,020 Il-kompjuter tkun qed teżegwixxi diversi affarijiet fl-istess 274 00:13:14,020 --> 00:13:17,480 żmien, bħad Scratch tista '. 275 00:13:17,480 --> 00:13:22,060 Allura kif tista 'tara f'dan l-eżempju, dawn skripts 2 jistgħu 276 00:13:22,060 --> 00:13:25,460 jintużaw għall-Sprite istess eżatt, minħabba li dawn 277 00:13:25,460 --> 00:13:27,590 bidu blokki punt tad-dħul jista 'effettivament użati 278 00:13:27,590 --> 00:13:28,840 f'multipli ta 'drabi. 279 00:13:28,840 --> 00:13:32,570 I garanzija li inti probabilment l-bandiera aħdar għafast blokk 280 00:13:32,570 --> 00:13:36,890 se jkun wieħed mill-aktar popolari 281 00:13:36,890 --> 00:13:39,230 blokki fil-programm tiegħek. 282 00:13:39,230 --> 00:13:43,500 Allura hawn naraw li meta l-bandiera aħdar huwa għafast, hemm 283 00:13:43,500 --> 00:13:47,970 proċess għaddej, kif ukoll meta l-bandiera aħdar huwa 284 00:13:47,970 --> 00:13:50,150 għafast, hemm proċess separat għaddejjin. 285 00:13:50,150 --> 00:13:53,650 U hekk Scratch se jimxu dawn iż-żewġ fl-istess ħin. 286 00:13:53,650 --> 00:13:55,930 U hekk billi tuża dawn il-ħjut, li jafu li inti tista 'attwalment 287 00:13:55,930 --> 00:13:58,010 jkollhom punt ta 'dħul aktar minn wieħed - 288 00:13:58,010 --> 00:14:00,450 anki jekk huwa l-punt ta 'dħul istess - 289 00:14:00,450 --> 00:14:04,340 li għaddej biex issir verament utli jekk inti tixtieq li, ngħidu aħna, 290 00:14:04,340 --> 00:14:06,290 separati kompiti distinti minn xulxin. 291 00:14:10,060 --> 00:14:10,490 Kull dritt. 292 00:14:10,490 --> 00:14:17,670 Mela ejja attwalment tħares lejn eżempju ta 'programm scratch. 293 00:14:25,790 --> 00:14:26,360 >> OK. 294 00:14:26,360 --> 00:14:29,150 Allura stajt diġà għamlu programm ftit għalina hawn. 295 00:14:29,150 --> 00:14:34,740 Allura jien biss jmorru ikklikkja l-bandiera aħdar biex tibda u ara 296 00:14:34,740 --> 00:14:36,520 dak li tagħmel. 297 00:14:36,520 --> 00:14:39,590 Allura għandna ħut oranġjo hawn - 298 00:14:39,590 --> 00:14:41,420 a Sprite ħut - 299 00:14:41,420 --> 00:14:47,960 Jidher li jiċċaqalqu u mbagħad reset u jmorru lura. 300 00:14:47,960 --> 00:14:49,250 U allura aħna għandna Sprite kelb il-baħar. 301 00:14:49,250 --> 00:14:51,705 U dan Sprite shark tista tiċċaqlaq, tista 'ddur, li tista' 302 00:14:51,705 --> 00:14:53,180 jgħumu madwar. 303 00:14:53,180 --> 00:14:53,520 OK. 304 00:14:53,520 --> 00:14:56,650 Allura dak it-tip ta 'gost. 305 00:14:56,650 --> 00:15:00,750 Iżda nistgħu definittivament żid aktar għal dan. 306 00:15:00,750 --> 00:15:05,790 Per eżempju, naraw li meta l-kelb il-baħar tkun miexja, hija tista ' 307 00:15:05,790 --> 00:15:07,740 fil-fatt tikseb barra l-iskrin u kważi 308 00:15:07,740 --> 00:15:11,150 jisparixxu mill-vista. 309 00:15:11,150 --> 00:15:13,010 Allura aħna tixtieq li tibdel dan, għaliex aħna ma rridux il- 310 00:15:13,010 --> 00:15:14,610 kelb il-baħar jaħarbu. 311 00:15:14,610 --> 00:15:19,840 U hekk ejja tieqaf iskrittura tagħna u mbagħad jeditjaw il-kelb il-baħar 312 00:15:19,840 --> 00:15:22,720 skripts, forsi żid xi ħaġa. 313 00:15:22,720 --> 00:15:27,400 Avviż li f'dan Sprite partikolari hawnhekk, il-linja għal dejjem 314 00:15:27,400 --> 00:15:29,160 truf bil xifer dritt. 315 00:15:29,160 --> 00:15:30,920 Huwa ma jkollu ebda kanal. 316 00:15:30,920 --> 00:15:34,410 Allura fil-fatt dan jagħmel sens, għaliex dan huwa loop dejjem. 317 00:15:34,410 --> 00:15:37,430 Huwa eżekuzzjoni xi ħaġa infinitament. 318 00:15:37,430 --> 00:15:40,240 Għalhekk mhux se qatt jispiċċaw. 319 00:15:40,240 --> 00:15:41,810 Anke jekk kien hemm xi ħaġa taħtu, kieku 320 00:15:41,810 --> 00:15:43,030 qatt nikseb għal dan. 321 00:15:43,030 --> 00:15:49,000 Allura inti fil-fatt sfurzati li jintroduċu ħajt. 322 00:15:49,000 --> 00:15:49,500 >> Kull dritt. 323 00:15:49,500 --> 00:15:52,490 Mela ejja żid ieħor iskrittura. 324 00:15:52,490 --> 00:15:55,210 Allura jien ser tibda ma 'dan il-punt tad-dħul ta' meta jkunu ħodor 325 00:15:55,210 --> 00:15:56,850 bandiera huwa għafast. 326 00:15:56,850 --> 00:16:04,900 Allura dak li nixtieq do huwa kontinwament tivverifika jekk il- 327 00:16:04,900 --> 00:16:07,210 kelb il-baħar se tkun tmiss it-tarf. 328 00:16:07,210 --> 00:16:10,560 Imma naf li, fil-fatt, skont Mozzjoni hemm pulita 329 00:16:10,560 --> 00:16:16,170 blokk ftit li tgħid, oh, jekk fuq, tarf bounce. 330 00:16:16,170 --> 00:16:18,930 Allura dak li rridu nagħmlu huwa kontinwament tesegwixxi. 331 00:16:18,930 --> 00:16:22,010 U iva, liema din "jekk fit-tarf, bounce" ma - fil-fatt 332 00:16:22,010 --> 00:16:26,170 diġà kontrolli jekk jien fuq it-tarf, imbagħad bounce back. 333 00:16:26,170 --> 00:16:31,770 Allura għandna bżonn issib xi tip ta 'linja li kontinwament 334 00:16:31,770 --> 00:16:34,350 jesegwixxi din id-dikjarazzjoni. 335 00:16:34,350 --> 00:16:37,360 Mela jekk inħarsu taħt Kontroll, ħadd ma jkollu idea ta ' 336 00:16:37,360 --> 00:16:42,060 dak loop aħna tista 'tixtieq tuża? 337 00:16:42,060 --> 00:16:42,530 Yeah. 338 00:16:42,530 --> 00:16:43,470 >> STUDENT: Il loop dejjem. 339 00:16:43,470 --> 00:16:44,300 ZAMYLA Chan: Eżattament, yeah. 340 00:16:44,300 --> 00:16:45,080 Il-linja dejjem. 341 00:16:45,080 --> 00:16:48,370 Mela ejja track li hawn, u mbagħad jgħidu, jekk fit-tarf, bounce. 342 00:16:48,370 --> 00:16:51,580 U mbagħad ejja ara. 343 00:16:51,580 --> 00:16:52,120 Kull dritt. 344 00:16:52,120 --> 00:16:54,460 Allura l-ħut miexja kif kull soltu. 345 00:16:54,460 --> 00:16:55,540 U mbagħad, oh - 346 00:16:55,540 --> 00:17:00,280 issa l-kelb il-baħar ma jistgħux jaħarbu u bounces off-iskrin. 347 00:17:00,280 --> 00:17:01,155 Kessaħ. 348 00:17:01,155 --> 00:17:01,600 Kull dritt. 349 00:17:01,600 --> 00:17:02,770 So I kienet tfittex pulzieri 350 00:17:02,770 --> 00:17:03,710 I can't - iva? 351 00:17:03,710 --> 00:17:06,196 >> STUDENT: Kif inti tagħmel li tapplika għall-kelb il-baħar kif jiċċaqlaq 352 00:17:06,196 --> 00:17:07,329 għall-ħut? 353 00:17:07,329 --> 00:17:07,780 ZAMYLA Chan: Ah. 354 00:17:07,780 --> 00:17:15,910 Allura r-raġuni għaliex biss il-kelb il-baħar bounces, għall-kuntrarju 355 00:17:15,910 --> 00:17:20,530 ħut kif ukoll, għaliex din l-iskrittura li aħna kiteb li hu ġewwa 356 00:17:20,530 --> 00:17:21,290 il-kelb il-baħar Sprite. 357 00:17:21,290 --> 00:17:22,950 You see, l hawn, il-Sprite kelb il-baħar hija magħżula. 358 00:17:25,609 --> 00:17:25,990 Kull dritt. 359 00:17:25,990 --> 00:17:30,730 Mela ejja żid xi ħaġa oħra. 360 00:17:30,730 --> 00:17:34,260 I kien esplorazzjoni fuq il-kostumi differenti li 361 00:17:34,260 --> 00:17:37,870 Scratch għandu, u rajt dan ftit ħelu shark 'chomp. 362 00:17:37,870 --> 00:17:41,070 So I ħsibt li, ħej, ukoll, forsi nistgħu jimplimentaw il- 363 00:17:41,070 --> 00:17:45,975 shark chomping, per eżempju, meta aħna istampa ispazju. 364 00:17:45,975 --> 00:17:47,560 Jien biss ser tieqaf din. 365 00:17:47,560 --> 00:17:49,990 Kull dritt. 366 00:17:49,990 --> 00:17:50,476 Iva. 367 00:17:50,476 --> 00:17:54,370 >> STUDENT: Tista biss juru l - huwa li taħt Kostumi? 368 00:17:54,370 --> 00:17:54,900 ZAMYLA Chan: Oh, iva. 369 00:17:54,900 --> 00:17:59,560 So I marru taħt Kostumi, u mbagħad I ħares taħt Importazzjoni. 370 00:17:59,560 --> 00:18:02,780 U hekk hawn, Scratch għandha firxa sħiħa ta 'kostumi li 371 00:18:02,780 --> 00:18:03,500 inti tista 'tagħżel. 372 00:18:03,500 --> 00:18:07,120 U hekk allura hemm mazz sħiħ ta 'l-annimali, u allura l- 373 00:18:07,120 --> 00:18:09,560 kelb il-baħar għandha koppja ta 'kostumi assoċjati magħha. 374 00:18:15,116 --> 00:18:15,580 OK. 375 00:18:15,580 --> 00:18:22,480 Allura f'dan il-iskrittura hawn, jien diġà kontroll kontinwu 376 00:18:22,480 --> 00:18:26,090 fil-linja għal dejjem, OK, ukoll, jekk il-vleġġa xellug hija ppressata, 377 00:18:26,090 --> 00:18:28,720 imbagħad Irrid li jduru kontra l-arloġġ. 378 00:18:28,720 --> 00:18:32,180 Jekk il-vleġġa dritt hija ppressata, nixtieq li jduru lejn il-lemin. 379 00:18:32,180 --> 00:18:33,800 Jekk il-vleġġa up hija ppressata, imbagħad I 380 00:18:33,800 --> 00:18:36,050 jridu progress 'l quddiem. 381 00:18:36,050 --> 00:18:42,250 Allura dak li nistgħu nagħmlu huwa biss iżidu din l-iskrittura, minflok 382 00:18:42,250 --> 00:18:45,350 żżid wieħed separat, għaliex dan ikun diġà kontrollar 383 00:18:45,350 --> 00:18:48,640 t-tema tagħha ċwievet qed jiġu ppressati. 384 00:18:48,640 --> 00:18:52,050 >> Mela ejja żid waħda li tgħid jekk iċ-ċavetta ispazju - ejja jużaw il- 385 00:18:52,050 --> 00:18:54,200 ċavetta ispazju għall chomp isfel. 386 00:18:54,200 --> 00:18:58,970 Allura dawn vleġġa xellug ewlenin ippressat, eċċetera, dawn huma 387 00:18:58,970 --> 00:19:00,680 fil-blu isbaħ. 388 00:19:00,680 --> 00:19:04,520 Mela ejja mur Sensing-blu isbaħ, u tfittex l isfel. 389 00:19:04,520 --> 00:19:09,020 Oh, u hawn huwa spazju ewlenin ippressat. 390 00:19:09,020 --> 00:19:13,510 Allura dak li rridu nagħmlu huwa jkollu l-bidla shark għall tagħha 391 00:19:13,510 --> 00:19:15,320 chomping isfel kostum. 392 00:19:15,320 --> 00:19:16,670 Dan għandu ma 'kif il-kelb il-baħar 393 00:19:16,670 --> 00:19:18,160 jistenna, għalhekk immorru Jistenna. 394 00:19:18,160 --> 00:19:21,560 U hawn aħna għandna, konvenjenti, jaqilbu għal 395 00:19:21,560 --> 00:19:23,680 kostum kelb il-baħar 'chomp. 396 00:19:23,680 --> 00:19:27,980 Imma meta aħna chomp isfel, ma rridux il-kelb il-baħar li tkun 397 00:19:27,980 --> 00:19:30,820 chomping isfel għal dejjem, hekk ejja żid, OK, tajjeb allura, 398 00:19:30,820 --> 00:19:36,950 wara li chomps, irridu li jaqilbu lura. 399 00:19:36,950 --> 00:19:41,790 OK, so ejja ara dak li ma. 400 00:19:41,790 --> 00:19:43,990 Allura aħna għandna dan jiċċaqalqu madwar. 401 00:19:43,990 --> 00:19:44,720 OK. 402 00:19:44,720 --> 00:19:46,660 Allura aħna għandna hija chomping. 403 00:19:46,660 --> 00:19:51,240 Huwa tip chomping ta 'malajr għalkemm, minħabba li fil Scratch, 404 00:19:51,240 --> 00:19:53,710 huwa eżekuzzjoni tagħhom b'mod istantanju. 405 00:19:53,710 --> 00:19:58,300 Mela allura, ejja mur Control u jagħmluha japprezzaw tagħha 406 00:19:58,300 --> 00:19:59,785 chomp, stenna-tieni wieħed. 407 00:20:03,890 --> 00:20:09,130 U hawn huwa chomps isfel ftit itwal qabel ma tmur 408 00:20:09,130 --> 00:20:11,180 lura għall-ġuħ tagħha. 409 00:20:11,180 --> 00:20:11,530 >> OK. 410 00:20:11,530 --> 00:20:13,210 Hekk jien pjuttost kuntenti bil-kelb il-baħar issa. 411 00:20:13,210 --> 00:20:18,740 Imma l-ħut, dak li jidher li tkun qiegħda tagħmel - huwa miexi a 412 00:20:18,740 --> 00:20:20,750 Koppja ta 'passi, fil-fatt, ħames darbiet. 413 00:20:20,750 --> 00:20:24,940 Huwa jiċċaqalqu 50 passi. 414 00:20:24,940 --> 00:20:29,280 U allura dak li qed jagħmel hawn f'dan il-blokk ta 'fuq hawnhekk huwa jien 415 00:20:29,280 --> 00:20:35,180 qal, OK, ukoll, li għaddej biex tmur ċertu valur ta 'x. 416 00:20:35,180 --> 00:20:38,560 Biex issib l-koordinati, inti tista 'attwalment biss maws fuq 417 00:20:38,560 --> 00:20:40,550 l-iskrin, u mbagħad fil-qiegħ - 418 00:20:40,550 --> 00:20:41,530 dritt fuq hawn - 419 00:20:41,530 --> 00:20:43,210 hija ser nuruk dak li l-koordinati huma. 420 00:20:43,210 --> 00:20:45,950 Allura inti tista 'tieħu vantaġġ ta' dak li l-input l-koordinati 421 00:20:45,950 --> 00:20:46,830 li tixtieq. 422 00:20:46,830 --> 00:20:49,160 U għalhekk dak li din id-dikjarazzjoni hawn qed tgħid huwa qal, OK, 423 00:20:49,160 --> 00:20:54,200 ukoll, il-ħut jibda fil dan il-valur x ċerti u allura l- 424 00:20:54,200 --> 00:20:55,540 għoli ta 'dan jistgħu jinbidlu. 425 00:20:55,540 --> 00:20:59,740 Jien fil-fatt se pick għoli każwali li xorta jibqa 426 00:20:59,740 --> 00:21:02,580 fil-limiti ta 'l-istadju. 427 00:21:02,580 --> 00:21:04,320 U hekk hawn, dak li jien jieħdu vantaġġ ta 'hi 428 00:21:04,320 --> 00:21:05,680 xandir avvenimenti. 429 00:21:05,680 --> 00:21:09,310 Allura inti tara li dan handler avveniment huwa fish1 ġdid. 430 00:21:09,310 --> 00:21:14,730 Allura kull meta l-ħut jirċievi l-ġdida fish1 każ, ser 431 00:21:14,730 --> 00:21:16,250 tesegwixxi dan. 432 00:21:16,250 --> 00:21:19,740 U allura inti tara li wara li jimxi 'l quddiem l-ammont stabbilita tagħha 433 00:21:19,740 --> 00:21:21,400 ta 'drabi, allura huwa attwalment xandiriet 434 00:21:21,400 --> 00:21:22,720 għal darb'oħra, OK, ġodda fish1. 435 00:21:25,560 --> 00:21:31,860 Iżda minflok, kif madwar ejja tagħmel dan hekk li l-ħut biss 436 00:21:31,860 --> 00:21:35,320 tkompli sa l-aħħar ta 'l-iskrin qabel ma jreġġa, 437 00:21:35,320 --> 00:21:37,180 minflok sempliċiment tip ta 'ser-ċentru ta' dan. 438 00:21:40,480 --> 00:21:46,180 Allura minflok ta 'tgħid, irrepeti ħames darbiet - għaliex aħna ma 439 00:21:46,180 --> 00:21:48,380 verament jafu kif ħafna drabi se jkun hemm bżonn sakemm 440 00:21:48,380 --> 00:21:52,180 jasal fl-aħħar tal-iskrin, ejja użu xi ħaġa oħra. 441 00:21:52,180 --> 00:21:54,870 >> Allura jien ser tissepara jwettqu dan, għaliex aħna 442 00:21:54,870 --> 00:21:56,080 ma verament irridu dan. 443 00:21:56,080 --> 00:21:59,610 Biex tħassar blokki fil Scratch, dak li għandek tagħmel huwa inti biss drag 444 00:21:59,610 --> 00:22:03,415 huwa lejn ix-xellug, rilaxx, u mbagħad jiġrilha mħassra. 445 00:22:03,415 --> 00:22:05,470 Jekk inti tiddeċiedi li inti ma tridx tagħmel dan, allura inti tista ' 446 00:22:05,470 --> 00:22:08,970 dejjem undelete dan. 447 00:22:08,970 --> 00:22:10,640 Iżda aħna rridu li teħles minn dan. 448 00:22:10,640 --> 00:22:15,490 Dak li rridu nagħmlu huwa li rridu li jżomm fuq jiċċaqalqu 50 passi u 449 00:22:15,490 --> 00:22:19,400 jieqaf tieni waħda sakemm aħna tmissx il-tarf tal-iskrin. 450 00:22:19,400 --> 00:22:25,480 Allura jista 'xi ħadd fuq il-post loop li aħna tista' tixtieq li tuża dik 451 00:22:25,480 --> 00:22:28,750 jirrepeti proċess biss sakemm aħna tmissx l-iskrin. 452 00:22:31,594 --> 00:22:33,490 >> STUDENT: Irrepeti sa. 453 00:22:33,490 --> 00:22:36,750 ZAMYLA Chan: Smajt "irrepeti sakemm," u li l-korretta. 454 00:22:36,750 --> 00:22:40,990 So yeah, dan irrepeti sakemm blokk wkoll jieħu - 455 00:22:40,990 --> 00:22:43,770 imma naraw li dan ripetut sakemm blokka ma tantx huwa 456 00:22:43,770 --> 00:22:44,570 kompluta, id-dritt? 457 00:22:44,570 --> 00:22:48,490 Għalhekk għandna bżonn li ngħidu, OK, ukoll, irrepeti sa meta? 458 00:22:48,490 --> 00:22:51,380 Allura aħna ngħidu, OK, ukoll, irrepeti sakemm il-ħut huwa jmissu l- 459 00:22:51,380 --> 00:22:52,680 tarf ta 'l-iskrin. 460 00:22:52,680 --> 00:22:55,230 U hekk jien ser jgħidlek li dan huwa taħt Sensing. 461 00:22:55,230 --> 00:22:58,930 Hemm din Boolean jmissux. 462 00:22:58,930 --> 00:23:04,510 U għalhekk inti tista 'tagħżel hawn dak li inti tixtieq li jiġi verifikat 463 00:23:04,510 --> 00:23:05,530 li l-ħut huwa jmissu. 464 00:23:05,530 --> 00:23:09,200 Allura hawn, irridu ngħidu jmiss it-tarf. 465 00:23:09,200 --> 00:23:13,110 U allura rridu żid din lura pulzieri 466 00:23:13,110 --> 00:23:21,940 U għalhekk issa, jekk aħna watch ħut tagħna tmur, ladarba jmiss il- 467 00:23:21,940 --> 00:23:25,170 tarf, inneħħu jimxu lura. 468 00:23:25,170 --> 00:23:25,660 Kull dritt. 469 00:23:25,660 --> 00:23:27,390 Hekk jien kuntent ma 'dak. 470 00:23:27,390 --> 00:23:30,890 U s miftuħ ejja HungryShark1. 471 00:23:34,620 --> 00:23:38,230 >> OK, tip simili ta 'juru tisjir, I miżjuda ftit 472 00:23:38,230 --> 00:23:39,850 aktar karatteristiċi. 473 00:23:39,850 --> 00:23:43,080 Għalhekk per eżempju, tara li l-ħut issa huwa attwalment 474 00:23:43,080 --> 00:23:45,960 gliding mingħajr xkiel, għall-kuntrarju qabel, meta kien 475 00:23:45,960 --> 00:23:48,350 tip ta 'ċaqliq u l-waqfien, li jiċċaqalqu u l-waqfien - 476 00:23:48,350 --> 00:23:52,890 essenzjalment biss jaqbeż pixels stabbiliti. 477 00:23:52,890 --> 00:23:56,810 Fittixt taħt Mozzjoni, sabet din l-istqarrija glide, u jien 478 00:23:56,810 --> 00:24:00,515 qal, OK, minflok sempliċiment jiċċaqalqu u l-waqfien, li jiċċaqalqu 479 00:24:00,515 --> 00:24:04,850 u l-waqfien, jien ser glide 70 unitajiet lejn il-lemin, 480 00:24:04,850 --> 00:24:08,500 imma jibqgħu fil-pożizzjoni tiegħi y istess hawn. 481 00:24:08,500 --> 00:24:09,680 Kull dritt. 482 00:24:09,680 --> 00:24:11,430 Allura aħna għandna kelb il-baħar li jistgħu chomp. 483 00:24:13,940 --> 00:24:15,060 Kessaħ. 484 00:24:15,060 --> 00:24:18,610 Iżda huwa msejjaħ HungryShark, wara kollox, so ejja jkollhom l- 485 00:24:18,610 --> 00:24:20,550 Kelb il-baħar jieklu l-ħut. 486 00:24:20,550 --> 00:24:29,120 >> Allura kif tista aħna tell-ħut jew tell-kelb il-baħar li hija għandha 487 00:24:29,120 --> 00:24:30,680 chomped isfel? 488 00:24:30,680 --> 00:24:32,470 Kif tista nikkomunikaw? 489 00:24:32,470 --> 00:24:33,220 Iva. 490 00:24:33,220 --> 00:24:35,120 STUDENT: Fuq il-kostumi tieni kelb il-baħar, 491 00:24:35,120 --> 00:24:36,550 qabdiet tal-ħut. 492 00:24:36,550 --> 00:24:38,460 ZAMYLA Chan: Yeah, eżattament. 493 00:24:38,460 --> 00:24:42,710 Allura aħna nafu li meta aħna qed jaqilbu l-kostum għall- 494 00:24:42,710 --> 00:24:45,500 chomp, li għandna chomp isfel. 495 00:24:45,500 --> 00:24:49,530 Issa, aħna ser eventwalment ikollhom jiċċekkjaw. 496 00:24:49,530 --> 00:24:51,880 Say irridu li l-ħut li jisparixxu ladarba tagħha jittiekel. 497 00:24:51,880 --> 00:24:54,820 Aħna se jkollhom b'xi jikkomunikaw lill-ħut li 498 00:24:54,820 --> 00:24:59,405 dan ser ikollhom biex jaħbu, per eżempju, jew jisparixxu mill- 499 00:24:59,405 --> 00:25:01,670 l-iskrin darba huwa kien chomped isfel fuq. 500 00:25:01,670 --> 00:25:08,200 >> Allura liema tip ta 'kunċett, liema tip ta' għodda nistgħu nużaw biex 501 00:25:08,200 --> 00:25:10,440 jkollhom il-kelb il-baħar jikkomunikaw lill-ħut, OK, 502 00:25:10,440 --> 00:25:11,526 Stajt chomped isfel? 503 00:25:11,526 --> 00:25:12,340 STUDENT: Xandir. 504 00:25:12,340 --> 00:25:14,290 ZAMYLA Chan: Iva, eżattament, xandir ta 'avveniment. 505 00:25:14,290 --> 00:25:17,733 Mela ejja mur Control u ejja ngħidu xandira. 506 00:25:20,280 --> 00:25:24,730 U ejja xandira chomp. 507 00:25:24,730 --> 00:25:25,420 Kull dritt. 508 00:25:25,420 --> 00:25:27,690 Imma ladarba aħna xandira xi ħaġa, dak ma 'l- 509 00:25:27,690 --> 00:25:29,390 suppożizzjoni li aħna qed fil-fatt se jkollhom xi ħaġa 510 00:25:29,390 --> 00:25:30,360 jirċevuha. 511 00:25:30,360 --> 00:25:32,110 U hekk li għaddej biex tkun l-ħut. 512 00:25:32,110 --> 00:25:36,600 Mela ejja ngħidu, meta nirċievi chomp. 513 00:25:40,360 --> 00:25:43,720 Issa, meta l-chomp shark isfel biss ta 'spazju vojt, aħna ma 514 00:25:43,720 --> 00:25:46,180 jridu li l-ħut biex jirreaġixxu għal dik fil-livelli kollha. 515 00:25:46,180 --> 00:25:50,780 Mela ejja ngħidu, OK, ukoll, biss jekk il-kelb il-baħar qed imiss il- 516 00:25:50,780 --> 00:25:52,310 ħut fil-ħin ta 'l-chomp - 517 00:25:52,310 --> 00:25:54,210 li meta aħna ser fil-fatt jagħmlu xi ħaġa. 518 00:25:54,210 --> 00:25:58,560 Mela allura, aħna qed tmur biex jużaw il-kundizzjoni jekk, id-dritt, 519 00:25:58,560 --> 00:26:01,100 għaliex aħna qed verifikat jekk xi ħaġa hija vera jew le. 520 00:26:01,100 --> 00:26:03,170 Mela jekk immorru lura għall Sensing, allura nistgħu 521 00:26:03,170 --> 00:26:05,760 użu hawn, jekk jmissu. 522 00:26:05,760 --> 00:26:07,490 U allura hawnhekk, aħna ser jagħżlu l-kelb il-baħar. 523 00:26:12,280 --> 00:26:14,710 Imbagħad taħt Jistenna, din il-blokka jinħbew - 524 00:26:14,710 --> 00:26:19,250 li ser bażikament jagħmlu l-ħut jisparixxu mill-istadju. 525 00:26:19,250 --> 00:26:22,760 Aħna ser jagħmilha jaħbu, iżda irridu ieħor tal-ħut, id-dritt? 526 00:26:22,760 --> 00:26:23,820 Kelb il-baħar tagħna huwa bil-ġuħ. 527 00:26:23,820 --> 00:26:24,960 Aħna rridu li jagħtuh aktar ħut. 528 00:26:24,960 --> 00:26:31,640 Mela allura ejja wkoll xandira ta 'ħut ġdid mill-ġdid. 529 00:26:31,640 --> 00:26:31,890 OK. 530 00:26:31,890 --> 00:26:35,880 Mela ejja ara dak li ma. 531 00:26:35,880 --> 00:26:36,310 >> Kessaħ. 532 00:26:36,310 --> 00:26:38,830 Għalhekk chomps isfel u ieħor tal-ħut jidher. 533 00:26:38,830 --> 00:26:41,360 Imma dak li ftit wisq malajr għall-ieħor tal-ħut li jmorru. 534 00:26:41,360 --> 00:26:44,610 Mela ejja biss stenna-tieni qabel we 535 00:26:44,610 --> 00:26:45,860 xandira ta 'ħut ġdid. 536 00:26:48,350 --> 00:26:49,110 Kull dritt. 537 00:26:49,110 --> 00:26:49,380 OK. 538 00:26:49,380 --> 00:26:52,460 Allura dan huwa teħid pjuttost tajba ta 'logħba. 539 00:26:52,460 --> 00:26:54,350 Iżda kollha logħob bżonn ta 'punteġġ, id-dritt? 540 00:26:54,350 --> 00:26:57,070 Allura x'jista nużaw biex iżommu punteġġ? 541 00:27:00,370 --> 00:27:00,630 Iva. 542 00:27:00,630 --> 00:27:01,005 STUDENT: Oħrajn - 543 00:27:01,005 --> 00:27:01,830 ZAMYLA Chan: Yeah. 544 00:27:01,830 --> 00:27:02,290 Eżattament. 545 00:27:02,290 --> 00:27:04,520 Yeah. 546 00:27:04,520 --> 00:27:06,480 Allura aħna do jridu jżommu rekord ta bażikament kif 547 00:27:06,480 --> 00:27:07,660 ħut ħafna huwa jittiekel. 548 00:27:07,660 --> 00:27:09,430 Biex tagħmel dan, aħna ser ikollhom jagħmlu varjabbli. 549 00:27:09,430 --> 00:27:11,100 Ejja sejħa li score. 550 00:27:11,100 --> 00:27:14,240 U għalhekk preżumibbilment, minħabba li din hija logħba li aħna qed jilagħbu, 551 00:27:14,240 --> 00:27:18,060 aħna qed tmur jridu l-ħut li tkun tista '- 552 00:27:18,060 --> 00:27:19,860 jiġifieri, ladarba tagħha jittiekel tista 'żżid il-punteġġ jew 553 00:27:19,860 --> 00:27:23,780 xi ħaġa u mbagħad l-istadju probabbilment se jkollhom jagħmlu 554 00:27:23,780 --> 00:27:25,020 xi ħaġa bil-griżmejn ukoll. 555 00:27:25,020 --> 00:27:28,280 Allura jien ser jagħżlu li jagħmlu dan il-varjabbli globali u jgħidu 556 00:27:28,280 --> 00:27:30,920 għall-sprites. 557 00:27:30,920 --> 00:27:31,470 OK. 558 00:27:31,470 --> 00:27:33,880 Allura meta irridu li tiżdied il-punteġġ? 559 00:27:33,880 --> 00:27:36,440 Meta ħut ikun ġie jittiekel. 560 00:27:36,440 --> 00:27:39,390 U hekk aħna diġà jkun hemm proċess hawn li qiegħed jinnegozja 561 00:27:39,390 --> 00:27:40,800 mal-ħut li jittiekel. 562 00:27:40,800 --> 00:27:43,570 Mela ejja żid din id-dikjarazzjoni hawn - 563 00:27:43,570 --> 00:27:44,820 bidla Score sa l-1. 564 00:27:49,208 --> 00:27:49,670 Kessaħ. 565 00:27:49,670 --> 00:27:54,580 Allura ladarba inti tiekol ħut, iż-żidiet punteġġ. 566 00:27:54,580 --> 00:27:54,790 >> Kull dritt. 567 00:27:54,790 --> 00:27:57,090 Allura ngħid jien għajjien ta 'din il-logħba. 568 00:27:57,090 --> 00:27:58,410 I stop. 569 00:27:58,410 --> 00:28:01,110 U mbagħad, oh, I tixtieq terga 'lura għal-logħba. 570 00:28:01,110 --> 00:28:02,630 Irrid li tibda logħba ġdida. 571 00:28:02,630 --> 00:28:05,550 Ukoll, il-punteġġ għadu 3, anki jekk jien 572 00:28:05,550 --> 00:28:06,680 jilagħbu logħba ġdida. 573 00:28:06,680 --> 00:28:10,190 Aħna ma verament irridu li score qatt għal reset, id-dritt? 574 00:28:10,190 --> 00:28:16,240 Mela ejja żid dikjarazzjoni meta l-logħba hija bdiet fl- 575 00:28:16,240 --> 00:28:19,990 istadju jiġifieri, OK, ukoll, aħna tixtieq li reset-punteġġ. 576 00:28:19,990 --> 00:28:23,100 Allura hawnhekk għandna stabbiliti l-punteġġ varjabbli għal 0. 577 00:28:23,100 --> 00:28:27,960 U għalhekk issa, kull meta inti tibda logħba l-iskor 578 00:28:27,960 --> 00:28:30,920 se tibda fil 0. 579 00:28:30,920 --> 00:28:32,270 Kessaħ. 580 00:28:32,270 --> 00:28:33,520 OK. 581 00:28:36,875 --> 00:28:37,340 OK. 582 00:28:37,340 --> 00:28:40,240 Allura issa, ejja mur fuq HungryShark2. 583 00:28:40,240 --> 00:28:43,500 >> So I ghamilt ftit aktar issa, u dak I ghamilt hija 584 00:28:43,500 --> 00:28:44,860 dritt għafast fuq il-Sprite ħut. 585 00:28:44,860 --> 00:28:47,970 Xtaqt aktar ħut, u so I għafast duplikat u għamel 586 00:28:47,970 --> 00:28:51,930 a Sprite ġdida identika għal dik wieħed u kkupjata wkoll fil kollha tal- 587 00:28:51,930 --> 00:28:53,030 skripts ukoll. 588 00:28:53,030 --> 00:28:56,810 Mela allura dan fish2 huwa essenzjalment identiku għal 589 00:28:56,810 --> 00:28:59,630 fish1, ħlief minflok jibda ix-xellug u 590 00:28:59,630 --> 00:29:02,550 jiċċaqalqu dritt, li jibda fil-dritt u jiċċaqlaq xellug. 591 00:29:02,550 --> 00:29:06,390 U mbagħad I wkoll għażlet kostum ġdid għaliha. 592 00:29:06,390 --> 00:29:09,022 Imbagħad sibt ieħor kostum li kien ħut spotted, u jien 593 00:29:09,022 --> 00:29:11,950 kien simili, berred, dan jistenna velenużi, so ejja nippretendu 594 00:29:11,950 --> 00:29:13,600 li dan huwa ħut velenuż. 595 00:29:13,600 --> 00:29:18,250 U hekk I said, OK, ukoll, minflok tiekol l- 596 00:29:18,250 --> 00:29:20,980 ħut velenuż u li jkollhom iż-żieda punteġġ tiegħek, I attwalment 597 00:29:20,980 --> 00:29:22,210 tixtieq li jonqos. 598 00:29:22,210 --> 00:29:27,890 Allura hawnhekk għandna punteġġ jonqos sal-1 kulmeta l- 599 00:29:27,890 --> 00:29:29,990 Kelb il-baħar tiekol minnha. 600 00:29:29,990 --> 00:29:31,650 U mbagħad, I really Għoġobni l-kostumi li tobrox 601 00:29:31,650 --> 00:29:34,450 sakemm, u I ħares u mbagħad sibt l shark's - 602 00:29:34,450 --> 00:29:36,050 li dehru qishom kelb il-baħar morda. 603 00:29:36,050 --> 00:29:38,040 U hekk imbagħad I editjat dan I għamilha aħdar. 604 00:29:38,040 --> 00:29:41,880 UI kien simili, berred, huwa kelb il-baħar morda. 605 00:29:41,880 --> 00:29:42,150 Kull dritt. 606 00:29:42,150 --> 00:29:49,150 >> Mela ejja ejja jżidu iskrittura tagħna xi tip ta 'mod ta' kif issir l- 607 00:29:49,150 --> 00:29:53,660 swiċċ shark fis tirremetti kull meta 608 00:29:53,660 --> 00:29:56,800 jiekol ħut velenu. 609 00:29:56,800 --> 00:29:57,380 OK. 610 00:29:57,380 --> 00:30:03,620 Allura għaliex aħna kkupjati kollha ta 'l-iskripts mill-oriġinali tagħna 611 00:30:03,620 --> 00:30:07,760 ħut fil-ħut velenu, li diġà għandha din Sprite hawn 612 00:30:07,760 --> 00:30:10,680 li tgħid, meta jien chomped isfel, jien 613 00:30:10,680 --> 00:30:12,020 attwalment chomped isfel? 614 00:30:12,020 --> 00:30:15,660 Allura nistgħu nieħdu vantaġġ ta 'dan li jikkomunikaw lill- 615 00:30:15,660 --> 00:30:18,170 kelb il-baħar, oh, ukoll, inti biss ate ħut velenu. 616 00:30:18,170 --> 00:30:18,850 Inti morda. 617 00:30:18,850 --> 00:30:23,100 U hekk dan ikun x'tip ta 'azzjoni? 618 00:30:23,100 --> 00:30:25,110 X'għandu jkun trid tagħmel? 619 00:30:25,110 --> 00:30:25,650 Broadcast. 620 00:30:25,650 --> 00:30:26,240 Yeah, eżattament. 621 00:30:26,240 --> 00:30:28,930 Mela ejja xandira. 622 00:30:28,930 --> 00:30:33,650 Ejja sejħa morda kelb il-baħar tiegħu. 623 00:30:33,650 --> 00:30:34,320 OK. 624 00:30:34,320 --> 00:30:36,930 Allura issa, il-kelb il-baħar, ovvjament, se jkun il-wieħed li l- 625 00:30:36,930 --> 00:30:38,250 jirċievu dan l-avveniment. 626 00:30:38,250 --> 00:30:44,150 Mela ejja żid I meta tirċievi l-kelb il-baħar ma tiflaħx. 627 00:30:44,150 --> 00:30:44,410 OK. 628 00:30:44,410 --> 00:30:46,300 Allura nafu aħna għandna dan il-kostum - 629 00:30:46,300 --> 00:30:49,400 il-kelb il-baħar huwa marid. 630 00:30:49,400 --> 00:30:51,900 U allura nafu minn qabel li għandna tip ta 'japprezzaw 631 00:30:51,900 --> 00:30:54,420 meta nistgħu nieqaf ftit qabel ma taqleb lura. 632 00:30:54,420 --> 00:30:54,875 Yeah? 633 00:30:54,875 --> 00:30:56,467 >> STUDENT: Kif inti kopja iskrittura minn 634 00:30:56,467 --> 00:30:57,605 1 Sprite għall-ieħor? 635 00:30:57,605 --> 00:30:58,510 ZAMYLA Chan: Ah. 636 00:30:58,510 --> 00:31:03,610 Allura f'dan il-każ, meta I biss idduplikata l Sprite, li 637 00:31:03,610 --> 00:31:07,880 kopja waħda iskrittura għal ieħor Sprite, dak li għamilt hawn kien 638 00:31:07,880 --> 00:31:11,630 biss jgħidu duplikat, u fil-fatt għamlet ġdid kollu 639 00:31:11,630 --> 00:31:14,110 Sprite kollha ta 'l-iskripts inklużi. 640 00:31:14,110 --> 00:31:18,100 Imma ngħidu li inti tixtieq li biss kopja 1 iskrittura ċerti għall-ieħor 641 00:31:18,100 --> 00:31:23,740 Sprite, allura dak li inti tagħmel huwa attwalment biss drag dan, 642 00:31:23,740 --> 00:31:29,990 imbagħad jerġgħu jsiru fuq ieħor iskrittura, u issa hawn dduplikata dan. 643 00:31:29,990 --> 00:31:32,590 F'dan il-każ, hija diġà kellha dan, hekk nistgħu biss tħassar 644 00:31:32,590 --> 00:31:33,170 li għal darb'oħra. 645 00:31:33,170 --> 00:31:37,060 Iżda li kopja 1 iskrittura għal ieħor, dak li għandek tagħmel huwa biss 646 00:31:37,060 --> 00:31:40,230 drag hija fuq il-sprites oħra. 647 00:31:40,230 --> 00:31:40,490 OK. 648 00:31:40,490 --> 00:31:42,390 >> Allura aħna qed lura fil-kelb il-baħar ma tiflaħx. 649 00:31:42,390 --> 00:31:45,650 Kelb il-baħar Allura huwa riċevut huwa marid, u jgħid, OK, ukoll, 650 00:31:45,650 --> 00:31:49,110 ladarba jien morda, jien ser jaqilbu għal kostum tiegħi li tgħid 651 00:31:49,110 --> 00:31:54,630 "Shark morda," u issa, ejja biss żid stenna għal 652 00:31:54,630 --> 00:31:56,280 japprezzaw l-aħdar. 653 00:31:56,280 --> 00:31:59,560 U allura aħna qed tmur biex tkun bil-ġuħ mill-ġdid, hekk nistgħu biss 654 00:31:59,560 --> 00:32:04,140 jaqilbu lura għall-kelb il-baħar li jkunu bil-ġuħ. 655 00:32:04,140 --> 00:32:04,460 Kull dritt. 656 00:32:04,460 --> 00:32:06,390 Mela ejja jieklu dan il-ħut vjola. 657 00:32:06,390 --> 00:32:07,640 Li l-multa. 658 00:32:10,700 --> 00:32:11,230 Good kwistjoni. 659 00:32:11,230 --> 00:32:13,070 Dak li ġara lill-kontro? 660 00:32:13,070 --> 00:32:13,660 OK. 661 00:32:13,660 --> 00:32:23,090 Allura għandna stabbiliti punteġġ għal 0 hawn, iżda dan score - dak 662 00:32:23,090 --> 00:32:28,700 din il-marka verifika ma hi ġlud jew unhides-varjabbli 663 00:32:28,700 --> 00:32:29,775 mill-iskrin. 664 00:32:29,775 --> 00:32:34,320 Imma dak li nistgħu nagħmlu minflok unchecking jew iċċekkjar dan - 665 00:32:34,320 --> 00:32:37,330 nistgħu attwalment ikollhom din il-blokka hawn jgħid "juru jew jaħbu 666 00:32:37,330 --> 00:32:40,160 il-varjabbli. "Mela ejja kun żgur li kull darba nibdew 667 00:32:40,160 --> 00:32:41,945 il-logħba li l-varjabbli hija murija. 668 00:32:44,840 --> 00:32:45,100 >> OK. 669 00:32:45,100 --> 00:32:46,540 Allura issa l-varjabbli hija murija. 670 00:32:46,540 --> 00:32:52,160 Aħna jieklu ħut velenu, u aħna jimirdu. 671 00:32:52,160 --> 00:32:53,440 Kessaħ. 672 00:32:53,440 --> 00:32:53,680 Kull dritt. 673 00:32:53,680 --> 00:32:56,910 Allura issa, huwa fard għal logħba għalina li jkollhom negattiv 674 00:32:56,910 --> 00:32:57,420 punti, id-dritt? 675 00:32:57,420 --> 00:33:01,830 Għalhekk jżomm fuq tiekol dawn u huwa simili - 676 00:33:01,830 --> 00:33:05,190 hekk kif madwar kull meta nikbru negattiv, jekk irridu ħadthom jittiekel wisq 677 00:33:05,190 --> 00:33:10,770 Ħut velenuż ħafna, logħba fuq - shark wisq morda. 678 00:33:10,770 --> 00:33:11,110 Kull dritt. 679 00:33:11,110 --> 00:33:12,680 Allura dak li aħna ser bżonn tagħmel hu li aħna ser bżonn li 680 00:33:12,680 --> 00:33:14,950 xandir xi avveniment - 681 00:33:14,950 --> 00:33:15,960 logħba fuq. 682 00:33:15,960 --> 00:33:17,710 Allura nistgħu nagħmlu dan modi diversi, fil-fatt. 683 00:33:17,710 --> 00:33:20,810 Aħna jista 'jkollhom x'imkien fl-istadju b'kitba li 684 00:33:20,810 --> 00:33:22,920 kontinwament il-kontrolli huwa l-punteġġ negattiv? 685 00:33:22,920 --> 00:33:24,030 Huwa l-punteġġ negattiv? 686 00:33:24,030 --> 00:33:26,910 Jekk iva, allura aħna xandira dan l-avveniment. 687 00:33:26,910 --> 00:33:29,120 >> Allura dak mod wieħed kif isir dan. 688 00:33:29,120 --> 00:33:31,640 Jew nistgħu jieħdu vantaġġ mill-fatt li aħna nafu li l- 689 00:33:31,640 --> 00:33:36,990 uniku mod li score tiegħek jista 'jkun negattiv huwa meta inti tiekol 690 00:33:36,990 --> 00:33:38,360 Ħut velenuż, id-dritt? 691 00:33:38,360 --> 00:33:39,930 Għaliex meta inti tiekol ieħor tal-ħut, tiegħek 692 00:33:39,930 --> 00:33:41,240 punteġġ se tiżdied. 693 00:33:41,240 --> 00:33:44,440 Allura hemm ebda użu fil-verifika jekk għandhiex tkun 694 00:33:44,440 --> 00:33:46,390 kaċċa fuq jew le. 695 00:33:46,390 --> 00:33:50,270 Allura dan huwa proċess simili hawn. 696 00:33:50,270 --> 00:33:53,230 Allura nistgħu ngħidu biss iżid din "meta nirċievi shark 697 00:33:53,230 --> 00:33:54,700 morda. " 698 00:33:54,700 --> 00:33:59,575 Allura ngħid aħna żid din il-kundizzjoni. 699 00:34:02,080 --> 00:34:04,820 Aħna rridu li ngħid, jekk il-punteġġ huwa inqas minn 0. 700 00:34:04,820 --> 00:34:07,480 Allura aħna qed tmur biex tmur Operaturi, aħna qed tmur għall-użu 701 00:34:07,480 --> 00:34:09,650 dan ta 'anqas minn, aħna qed tmur biex drag tagħna 702 00:34:09,650 --> 00:34:12,800 punteġġ hawnhekk, jiġifieri 0. 703 00:34:12,800 --> 00:34:16,920 U għalhekk, jekk il-punteġġ huwa 0, allura irridu xandir 704 00:34:16,920 --> 00:34:20,790 xi ħaġa imsejħa logħba fuq. 705 00:34:23,310 --> 00:34:24,560 >> OK. 706 00:34:26,199 --> 00:34:29,650 Allura ngħid aħna għandna logħba fuq. 707 00:34:29,650 --> 00:34:33,199 Ejja jġorrhom hawn jew xi ħaġa. 708 00:34:33,199 --> 00:34:38,739 Ukoll, irridu li l-kelb il-baħar biss biex imorru lura li jkunu bil-ġuħ jekk 709 00:34:38,739 --> 00:34:40,980 il-logħba tista 'tintlagħab xorta. 710 00:34:40,980 --> 00:34:43,909 Allura minflok jużaw "jekk," aħna ser tuża 711 00:34:43,909 --> 00:34:45,380 ta '"jekk inkella" jibnu. 712 00:34:45,380 --> 00:34:48,060 Allura dak li dan ma - huwa jgħid, OK, hekk jekk din il-kundizzjoni hija 713 00:34:48,060 --> 00:34:51,630 veru, allura tagħmel dan, imma jekk huwa falz imbagħad jagħmlu dan. 714 00:34:51,630 --> 00:34:54,929 Mela ejja żid jekk il-punteġġ huwa inqas minn 0, allura inti 715 00:34:54,929 --> 00:34:57,730 xandira logħba fuq, iżda jekk mhux - jekk tiegħek 716 00:34:57,730 --> 00:34:59,210 punteġġ għadu pożittiv - 717 00:34:59,210 --> 00:35:00,720 imbagħad mur lura li jkunu bil-ġuħ. 718 00:35:03,530 --> 00:35:03,790 OK. 719 00:35:03,790 --> 00:35:04,290 Kessaħ. 720 00:35:04,290 --> 00:35:09,390 Allura issa li aħna għandna din il-logħba fuq avveniment, aħna ser ikollhom biex ikollhom 721 00:35:09,390 --> 00:35:11,040 xi mod li jirrispondu għaliha. 722 00:35:11,040 --> 00:35:16,460 >> Mela ejja jagħmlu b'kitba ġdid li tgħid "meta nirċievi logħba 723 00:35:16,460 --> 00:35:21,470 fuq. "U dak li għandna hawnhekk taħt Kontroll huwa attwalment dan 724 00:35:21,470 --> 00:35:25,410 tieqaf kollha buttuna, u għalhekk bażikament jimita int tikklikkja 725 00:35:25,410 --> 00:35:26,720 il-waqfien aħmar jiffirmaw hawn. 726 00:35:26,720 --> 00:35:30,210 Mela ejja jkollhom l-waqfien kelb il-baħar. 727 00:35:30,210 --> 00:35:33,020 U hekk aħna rridu wkoll il-ħut li tieqaf, hekk ejja drag u 728 00:35:33,020 --> 00:35:33,910 kopja pulzieri 729 00:35:33,910 --> 00:35:36,830 Irridu l-ħut biex tieqaf. 730 00:35:36,830 --> 00:35:39,530 U allura ejja jkollhom l-waqfien istadju ukoll. 731 00:35:39,530 --> 00:35:39,910 Kull dritt. 732 00:35:39,910 --> 00:35:43,730 Allura għawm madwar, nieklu ħut, u 733 00:35:43,730 --> 00:35:46,580 allura l-programm tiffriża. 734 00:35:46,580 --> 00:35:49,670 Jien tikklikkja isfel imma ma nistax attwalment tagħmel xejn. 735 00:35:49,670 --> 00:35:56,500 OK, imma ejja ngħidu aħna ma rridux li tfakkar lill-utent li 736 00:35:56,500 --> 00:36:00,410 li ħadthom ltqajna valur negattiv, per eżempju, allura nistgħu, għal 737 00:36:00,410 --> 00:36:02,820 Pereżempju, jaħbu l-varjabbli mill-iskrin. 738 00:36:02,820 --> 00:36:06,340 Allura meta l-istadju jirċievi logħba fuq, imbagħad se jaħbu 739 00:36:06,340 --> 00:36:07,590 il-varjabbli punteġġ. 740 00:36:10,714 --> 00:36:12,190 OK. 741 00:36:12,190 --> 00:36:15,025 Mela ejja jieklu ħut waħda aktar. 742 00:36:19,900 --> 00:36:23,420 U allura l-punteġġ tisparixxi, u inti biss għandek dan l-iskrin. 743 00:36:23,420 --> 00:36:23,660 >> Kull dritt. 744 00:36:23,660 --> 00:36:26,530 Allura thats logħba pretty deċenti, u jekk kellek aktar 745 00:36:26,530 --> 00:36:30,010 ħin, allura inti tista 'eventwalment żżid 746 00:36:30,010 --> 00:36:31,590 skripts aktar u aktar. 747 00:36:31,590 --> 00:36:34,630 U hekk imbagħad, I miżjuda ħut ftit aktar, għamilhom progress 748 00:36:34,630 --> 00:36:38,830 b'veloċitajiet differenti, u mbagħad kull meta l-kelb il-baħar jiekol 749 00:36:38,830 --> 00:36:42,140 ħut velenuż, attwalment jgħid, "Blech!" 750 00:36:42,140 --> 00:36:45,010 U allura dak I ma hu I miżjuda sfond ġdid għall- 751 00:36:45,010 --> 00:36:47,210 istadju - logħba fuq l-isfond. 752 00:36:47,210 --> 00:36:53,610 U għalhekk dak l-istadju ma waqt il-logħba fuq avveniment 753 00:36:53,610 --> 00:36:58,100 immaniġġjar huwa swiċċijiet għall-isfond ta 'logħba fuq 754 00:36:58,100 --> 00:36:58,880 isfond. 755 00:36:58,880 --> 00:37:03,930 U kif ukoll, I hid kollha tal-sprites mill-istadju sabiex 756 00:37:03,930 --> 00:37:07,330 biss il-logħba fuq l-isfond ġie muri. 757 00:37:07,330 --> 00:37:10,620 Hemm ftit ta 'żidiet ftit oħra li I miżjuda, 758 00:37:10,620 --> 00:37:14,810 per eżempju, qabel meta aħna spiċċajna programm tagħna, imbagħad tagħna 759 00:37:14,810 --> 00:37:18,370 shark, il-ħin li jmiss li bdejna, se jibdew fl- 760 00:37:18,370 --> 00:37:19,620 din il-pożizzjoni kif ukoll. 761 00:37:19,620 --> 00:37:23,970 What I miżjud huwa kull meta l-bandiera aħdar huwa għafast, imbagħad 762 00:37:23,970 --> 00:37:26,920 il-kelb il-baħar tmur lura għall-oriġini u mbagħad jħares lejn 763 00:37:26,920 --> 00:37:28,490 id-dritt, b'tali mod li kull darba, inti għandek 764 00:37:28,490 --> 00:37:30,270 Kelb il-baħar tibda hemmhekk. 765 00:37:30,270 --> 00:37:32,910 >> Allura inti tista 'esperiment fl Mozzjoni u affarijiet simili, li 766 00:37:32,910 --> 00:37:37,410 biss li żżid jolqot ftit li jagħmlu tiegħek 767 00:37:37,410 --> 00:37:39,820 logħba daqsxejn aktar illustrat. 768 00:37:39,820 --> 00:37:41,190 Ħadd ma jkollu xi mistoqsijiet dwar HungryShark? 769 00:37:45,610 --> 00:37:46,050 Kessaħ. 770 00:37:46,050 --> 00:37:46,400 Kull dritt. 771 00:37:46,400 --> 00:37:49,730 Allura dak eżempju ta 'xi ħaġa li inti tista' tagħmel 772 00:37:49,730 --> 00:37:53,230 fil Scratch tuża l-għodda li għandna diskussi qabel. 773 00:37:53,230 --> 00:37:57,530 So I wkoll inklużi fil-pjastri walkthrough. 774 00:37:57,530 --> 00:37:58,460 Int ser ikollok tara minnhom aktar tard. 775 00:37:58,460 --> 00:38:01,770 Huwa biss ħarsa ġenerali tal-proċessi li għamilna - 776 00:38:01,770 --> 00:38:05,130 progress mill HungryShark0-triq kollha lejn finali tagħna. 777 00:38:05,130 --> 00:38:08,466 Wieħed 778 00:38:08,466 --> 00:38:08,960 Yeah. 779 00:38:08,960 --> 00:38:10,310 Imma dak dwar dan. 780 00:38:10,310 --> 00:38:11,690 I ser jibqgħu lura jekk inti guys tixtieq li 781 00:38:11,690 --> 00:38:12,990 jistaqsu xi mistoqsijiet aktar. 782 00:38:12,990 --> 00:38:14,060 Dan kien Walkthrough 0. 783 00:38:14,060 --> 00:38:16,250 Grazzi kollha għall ġejjin, u jien ser tara inti fil Walkthrough 1.