add pygame example

examples/hello-pygame.py

@@ -0,0 +1,96 @@
+import pygame
+import pyrexpaint
+import sys
+import os
+
+def main():
+    # Load the .xp file using pyrexpaint
+    try:
+        image_layers = pyrexpaint.load("hello.xp")
+        layer = image_layers[0]  # Use the first layer
+    except FileNotFoundError:
+        print("Error: hello.xp file not found!")
+        sys.exit(1)
+    except Exception as e:
+        print(f"Error loading .xp file: {e}")
+        sys.exit(1)
+
+    # Initialize pygame
+    pygame.init()
+
+    # Set up display
+    TILE_SIZE = 12  # Size of each character in pixels
+    SCREEN_WIDTH = layer.width * TILE_SIZE
+    SCREEN_HEIGHT = layer.height * TILE_SIZE
+
+    screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
+    pygame.display.set_caption("PyREXPaint - Pygame Example")
+
+    # Set up font for rendering characters
+    try:
+        # Try to use a monospace font
+        font = pygame.font.Font(pygame.font.get_default_font(), TILE_SIZE)
+    except:
+        font = pygame.font.Font(None, TILE_SIZE)
+
+    # Main game loop
+    clock = pygame.time.Clock()
+    running = True
+
+    while running:
+        # Handle events
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                running = False
+            elif event.type == pygame.KEYDOWN:
+                if event.key == pygame.K_ESCAPE:
+                    running = False
+
+        # Clear screen with black background
+        screen.fill((0, 0, 0))
+
+        # Render each tile from the .xp file
+        for y in range(layer.height):
+            for x in range(layer.width):
+                # Calculate tile position in the tiles array
+                tile_index = x + y * layer.width
+
+                if tile_index < len(layer.tiles):
+                    tile = layer.tiles[tile_index]
+
+                    # Decode the character from cp437 encoding
+                    try:
+                        char = tile.ascii_code.decode("cp437")
+                        char = char.replace(chr(0), " ")  # Replace null characters with spaces
+                    except:
+                        char = " "
+
+                    # Skip empty characters
+                    if char.strip():
+                        # Get colors (pyrexpaint stores as integers 0-255)
+                        fg_color = (tile.fg_r, tile.fg_g, tile.fg_b)
+                        bg_color = (tile.bg_r, tile.bg_g, tile.bg_b)
+
+                        # Calculate pixel position
+                        pixel_x = x * TILE_SIZE
+                        pixel_y = y * TILE_SIZE
+
+                        # Draw background rectangle if background color is not black
+                        if bg_color != (0, 0, 0):
+                            bg_rect = pygame.Rect(pixel_x, pixel_y, TILE_SIZE, TILE_SIZE)
+                            pygame.draw.rect(screen, bg_color, bg_rect)
+
+                        # Render the character
+                        if char != " ":
+                            text_surface = font.render(char, True, fg_color)
+                            screen.blit(text_surface, (pixel_x, pixel_y))
+
+        # Update display
+        pygame.display.flip()
+        clock.tick(60)  # 60 FPS
+
+    # Cleanup
+    pygame.quit()
+
+if __name__ == "__main__":
+    main()