116 lines
3.3 KiB
Python
116 lines
3.3 KiB
Python
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#!/usr/bin/env python
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""" pygame.examples.blend_fill
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BLEND_ing colors in different ways with Surface.fill().
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Keyboard Controls:
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* Press R, G, B to increase the color channel values,
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* 1-9 to set the step range for the increment,
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* A - ADD, S- SUB, M- MULT, - MIN, + MAX to change the blend modes
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"""
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import os
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import pygame as pg
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from pygame import K_1, K_2, K_3, K_4, K_5, K_6, K_7, K_8, K_9
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def usage():
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print("Press R, G, B to increase the color channel values,")
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print("1-9 to set the step range for the increment,")
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print("A - ADD, S- SUB, M- MULT, - MIN, + MAX")
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print(" to change the blend modes")
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main_dir = os.path.split(os.path.abspath(__file__))[0]
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data_dir = os.path.join(main_dir, "data")
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def main():
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color = [0, 0, 0]
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changed = False
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blendtype = 0
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step = 5
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pg.init()
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screen = pg.display.set_mode((640, 480), 0, 32)
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screen.fill((100, 100, 100))
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image = pg.image.load(os.path.join(data_dir, "liquid.bmp")).convert()
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blendimage = pg.image.load(os.path.join(data_dir, "liquid.bmp")).convert()
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screen.blit(image, (10, 10))
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screen.blit(blendimage, (200, 10))
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pg.display.flip()
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pg.key.set_repeat(500, 30)
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usage()
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going = True
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while going:
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for event in pg.event.get():
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if event.type == pg.QUIT:
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going = False
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if event.type == pg.KEYDOWN:
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usage()
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if event.key == pg.K_ESCAPE:
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going = False
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if event.key == pg.K_r:
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color[0] += step
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if color[0] > 255:
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color[0] = 0
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changed = True
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elif event.key == pg.K_g:
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color[1] += step
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if color[1] > 255:
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color[1] = 0
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changed = True
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elif event.key == pg.K_b:
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color[2] += step
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if color[2] > 255:
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color[2] = 0
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changed = True
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elif event.key == pg.K_a:
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blendtype = pg.BLEND_ADD
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changed = True
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elif event.key == pg.K_s:
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blendtype = pg.BLEND_SUB
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changed = True
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elif event.key == pg.K_m:
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blendtype = pg.BLEND_MULT
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changed = True
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elif event.key == pg.K_PLUS:
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blendtype = pg.BLEND_MAX
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changed = True
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elif event.key == pg.K_MINUS:
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blendtype = pg.BLEND_MIN
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changed = True
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elif event.key in (K_1, K_2, K_3, K_4, K_5, K_6, K_7, K_8, K_9):
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step = int(event.unicode)
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if changed:
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screen.fill((100, 100, 100))
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screen.blit(image, (10, 10))
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blendimage.blit(image, (0, 0))
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# blendimage.fill (color, (0, 0, 20, 20), blendtype)
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blendimage.fill(color, None, blendtype)
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screen.blit(blendimage, (200, 10))
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print(
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"Color: %s, Pixel (0,0): %s"
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% (tuple(color), [blendimage.get_at((0, 0))])
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)
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changed = False
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pg.display.flip()
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pg.quit()
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if __name__ == "__main__":
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main()
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