init

.venv/lib/python3.8/site-packages/pygame/examples/blend_fill.py

@@ -0,0 +1,115 @@
+#!/usr/bin/env python
+""" pygame.examples.blend_fill
+
+BLEND_ing colors in different ways with Surface.fill().
+
+Keyboard Controls:
+
+* Press R, G, B to increase the color channel values,
+* 1-9 to set the step range for the increment,
+* A - ADD, S- SUB, M- MULT, - MIN, + MAX to change the blend modes
+
+"""
+import os
+import pygame as pg
+from pygame import K_1, K_2, K_3, K_4, K_5, K_6, K_7, K_8, K_9
+
+
+def usage():
+    print("Press R, G, B to increase the color channel values,")
+    print("1-9 to set the step range for the increment,")
+    print("A - ADD, S- SUB, M- MULT, - MIN, + MAX")
+    print("  to change the blend modes")
+
+
+main_dir = os.path.split(os.path.abspath(__file__))[0]
+data_dir = os.path.join(main_dir, "data")
+
+
+def main():
+    color = [0, 0, 0]
+    changed = False
+    blendtype = 0
+    step = 5
+
+    pg.init()
+    screen = pg.display.set_mode((640, 480), 0, 32)
+    screen.fill((100, 100, 100))
+
+    image = pg.image.load(os.path.join(data_dir, "liquid.bmp")).convert()
+    blendimage = pg.image.load(os.path.join(data_dir, "liquid.bmp")).convert()
+    screen.blit(image, (10, 10))
+    screen.blit(blendimage, (200, 10))
+
+    pg.display.flip()
+    pg.key.set_repeat(500, 30)
+    usage()
+
+    going = True
+    while going:
+        for event in pg.event.get():
+            if event.type == pg.QUIT:
+                going = False
+
+            if event.type == pg.KEYDOWN:
+                usage()
+
+                if event.key == pg.K_ESCAPE:
+                    going = False
+
+                if event.key == pg.K_r:
+                    color[0] += step
+                    if color[0] > 255:
+                        color[0] = 0
+                    changed = True
+
+                elif event.key == pg.K_g:
+                    color[1] += step
+                    if color[1] > 255:
+                        color[1] = 0
+                    changed = True
+
+                elif event.key == pg.K_b:
+                    color[2] += step
+                    if color[2] > 255:
+                        color[2] = 0
+                    changed = True
+
+                elif event.key == pg.K_a:
+                    blendtype = pg.BLEND_ADD
+                    changed = True
+                elif event.key == pg.K_s:
+                    blendtype = pg.BLEND_SUB
+                    changed = True
+                elif event.key == pg.K_m:
+                    blendtype = pg.BLEND_MULT
+                    changed = True
+                elif event.key == pg.K_PLUS:
+                    blendtype = pg.BLEND_MAX
+                    changed = True
+                elif event.key == pg.K_MINUS:
+                    blendtype = pg.BLEND_MIN
+                    changed = True
+
+                elif event.key in (K_1, K_2, K_3, K_4, K_5, K_6, K_7, K_8, K_9):
+                    step = int(event.unicode)
+
+            if changed:
+                screen.fill((100, 100, 100))
+                screen.blit(image, (10, 10))
+                blendimage.blit(image, (0, 0))
+                # blendimage.fill (color, (0, 0, 20, 20), blendtype)
+                blendimage.fill(color, None, blendtype)
+                screen.blit(blendimage, (200, 10))
+                print(
+                    "Color: %s, Pixel (0,0): %s"
+                    % (tuple(color), [blendimage.get_at((0, 0))])
+                )
+                changed = False
+                pg.display.flip()
+
+    pg.quit()
+
+
+if __name__ == "__main__":
+    main()