回答編集履歴
2
見直しキャンペーン中
test
CHANGED
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@@ -96,3 +96,4 @@
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96
96
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global current
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97
97
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current = (current + 1) % 9
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98
98
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```
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99
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+
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1
別バリエーション
test
CHANGED
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@@ -37,3 +37,62 @@
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37
37
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38
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配列のシフトがPythonicな感じです^^
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39
39
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[Python リストのインデックスをずらす！！ - Qiita](https://qiita.com/Saijo_Tsubasa/items/dcbe64a1ce7550353672)
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40
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+
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41
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---
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42
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43
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色の配列にしたのは、色を増やしたりが楽だろうと思ってのことです。
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44
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45
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要件を満たすだけなら、グローバル変数はintひとつで十分です。
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46
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```Python
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47
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current = 0
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48
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49
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def setup():
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50
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size(600, 600)
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51
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52
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def draw():
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53
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background(128)
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54
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x, y = 100, 100
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55
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for i in range(0, 3):
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56
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fill(0 if 0 + i * 3 == current else 255)
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57
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ellipse(x, y + 150 * i, 50, 50)
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58
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59
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fill(0 if 1 + i * 3 == current else 255)
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60
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rect(x + 150, y - 25 + 150 * i, 50, 50)
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61
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62
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fill(0 if 2 + i * 3 == current else 255)
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63
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triangle(x + 350, y - 25 + 150 * i, x + 325, y + 25 + 150 * i, x + 375, y + 25 + 150 * i)
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64
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65
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def mouseClicked():
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66
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global current
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67
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current = (current + 1) % 9
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68
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```
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69
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70
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---
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71
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72
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ループを９回まわすほうが、`fill`に関してはわかりやすいかもしれません。
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73
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```Python
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74
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current = 0
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75
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+
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76
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def setup():
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77
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size(600, 600)
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78
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79
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def draw():
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80
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background(128)
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81
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translate(100, 100)
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82
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# for i, (col, row) in enumerate([(i % 3, i / 3) for i in range(9)]):
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83
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for i in range(9):
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84
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fill(0 if i == current else 255)
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85
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col = i % 3
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86
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row = i / 3
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87
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y = 150 * row
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88
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if col == 0:
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89
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ellipse(0, y, 50, 50)
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90
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elif col == 1:
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91
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rect(150, y - 25, 50, 50)
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92
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else:
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93
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triangle(350, y - 25, 325, y + 25, 375, y + 25)
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94
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95
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def mouseClicked():
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96
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global current
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97
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current = (current + 1) % 9
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98
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```
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