| 101 | |
| 102 | # 绘制网格函数 |
| 103 | def draw_grid(): |
| 104 | grid_pen.clear() |
| 105 | |
| 106 | # 设置网格边界 |
| 107 | left = -GRID_WIDTH * GRID_SIZE // 2 |
| 108 | right = GRID_WIDTH * GRID_SIZE // 2 |
| 109 | top = GAME_HEIGHT // 2 - 50 |
| 110 | bottom = top - GRID_HEIGHT * GRID_SIZE |
| 111 | |
| 112 | # 绘制垂直线 |
| 113 | for x in range(-GRID_WIDTH // 2, GRID_WIDTH // 2 + 1): |
| 114 | grid_pen.penup() |
| 115 | grid_pen.goto(x * GRID_SIZE, bottom) |
| 116 | grid_pen.pendown() |
| 117 | grid_pen.goto(x * GRID_SIZE, top) |
| 118 | |
| 119 | # 绘制水平线 |
| 120 | for y in range(GRID_HEIGHT + 1): |
| 121 | y_pos = top - y * GRID_SIZE |
| 122 | grid_pen.penup() |
| 123 | grid_pen.goto(left, y_pos) |
| 124 | grid_pen.pendown() |
| 125 | grid_pen.goto(right, y_pos) |
| 126 | |
| 127 | # 像素坐标转网格坐标 |
| 128 | def pixel_to_grid(x, y): |