即使看起來正確也無法創建表面

Question

self.image = pygame.Surface(
                int(math.sqrt((end_pos[1] - start_pos[1])**2 +(end_pos[0] - start_pos[0])**2)),  width)

返回錯誤：

 ValueError: size needs to be (int width, int height)

Answer 1

pygame.Surface的構造函數的參數是一個具有Surface大小的元組（ pygame.Surface((with, height)) ）：

self.image = pygame.Surface(int(math.sqrt((end_pos[1] - start_pos[1])**2 +(end_pos[0] - start_pos[0])**2)), width)

self.image = pygame.Surface(
    (int(math.sqrt((end_pos[1] - start_pos[1])**2 +(end_pos[0] - start_pos[0])**2)),  width))

分別

value = int(math.sqrt((end_pos[1] - start_pos[1])**2 +(end_pos[0] - start_pos[0])**2))
self.image = pygame.Surface((value, width))