You actually need an image
and a mask image. The mak image has just 2 color, black and white. The white areas of the mask define the areas in the image whose color needs to be changed:
The following function uses a pygame.Surface object image, pygame.Surface object maskImage and a color (newColor), to create a new Surface. In the new Surface the color of the regions which are defined by maskImage, is changed to newColor:
def changColor(image, maskImage, newColor):
colouredImage = pygame.Surface(image.get_size())
colouredImage.fill(newColor)
masked = maskImage.copy()
masked.set_colorkey((0, 0, 0))
masked.blit(colouredImage, (0, 0), None, pygame.BLEND_RGBA_MULT)
finalImage = image.copy()
finalImage.blit(masked, (0, 0), None)
return finalImage
Minimal example: repl.it/@Rabbid76/PyGame-ChangeColorOfSurfaceArea-3
import pygame
def changColor(image, maskImage, newColor):
colouredImage = pygame.Surface(image.get_size())
colouredImage.fill(newColor)
masked = maskImage.copy()
masked.set_colorkey((0, 0, 0))
masked.blit(colouredImage, (0, 0), None, pygame.BLEND_RGBA_MULT)
finalImage = image.copy()
finalImage.blit(masked, (0, 0), None)
return finalImage
pygame.init()
window = pygame.display.set_mode((404, 84))
image = pygame.image.load('avatar64.png').convert_alpha()
maskImage = pygame.image.load('avatar64mask.png').convert_alpha()
colors = []
for hue in range (0, 360, 60):
colors.append(pygame.Color(0))
colors[-1].hsla = (hue, 100, 50, 100)
images = [changColor(image, maskImage, c) for c in colors]
clock = pygame.time.Clock()
nextColorTime = 0
run = True
while run:
clock.tick(60)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
window.fill((255, 255, 255))
for i, image in enumerate(images):
window.blit(image, (10 + i * 64, 10))
pygame.display.flip()
pygame.quit()
exit()
