Update main_game.txt

main_game.txt

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+import pygame
+import sys
+
+# Constants
+SCREEN_WIDTH, SCREEN_HEIGHT = 2400, 1200
+SPRITE_WIDTH = 165
+SPRITE_HEIGHT = 300  # Updated character height
+SPRITESHEET_WIDTH = 1024
+SPRITESHEET_HEIGHT = 1024
+FPS = 60
+
+# Load sprite frames from the sheet
+def load_frames(sheet, row, num_frames):
+    frames = []
+    for i in range(num_frames):
+        frame = sheet.subsurface((i * SPRITE_WIDTH, row * SPRITE_HEIGHT, SPRITE_WIDTH, SPRITE_HEIGHT))
+        frames.append(frame)
+    return frames
+
+def main():
+    pygame.init()
+    screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
+    pygame.display.set_caption("Side Scroller Example")
+    clock = pygame.time.Clock()
+
+    # Load sprite sheet
+    sheet = pygame.image.load("spritesheet.png").convert_alpha()
+
+    # Assume first row (row 0) is walking right, 5 frames
+    walk_right_frames = load_frames(sheet, 0, 5)
+    # Flip frames for walking left
+    walk_left_frames = [pygame.transform.flip(frame, True, False) for frame in walk_right_frames]
+
+    # Player state
+    player_x = 100
+    player_y = SCREEN_HEIGHT - SPRITE_HEIGHT
+    frame_idx = 0
+    frame_timer = 0
+    frame_delay = 100  # ms per frame
+    velocity_y = 0
+    is_jumping = False
+    gravity = 1
+    move_left = False
+    move_right = False
+    facing_right = True
+
+    running = True
+    while running:
+        dt = clock.tick(FPS)
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                running = False
+            elif event.type == pygame.KEYDOWN:
+                if event.key == pygame.K_SPACE and not is_jumping:
+                    velocity_y = -18
+                    is_jumping = True
+
+        # Move player
+        keys = pygame.key.get_pressed()
+        move_left = keys[pygame.K_LEFT]
+        move_right = keys[pygame.K_RIGHT]
+
+        if move_right:
+            player_x += 5
+            facing_right = True
+            frame_timer += dt
+            if frame_timer > frame_delay:
+                frame_idx = (frame_idx + 1) % len(walk_right_frames)
+                frame_timer = 0
+        elif move_left:
+            player_x -= 5
+            facing_right = False
+            frame_timer += dt
+            if frame_timer > frame_delay:
+                frame_idx = (frame_idx + 1) % len(walk_left_frames)
+                frame_timer = 0
+        else:
+            frame_idx = 0  # Idle frame
+
+        # Jumping and gravity
+        if is_jumping:
+            player_y += velocity_y
+            velocity_y += gravity
+            if player_y >= SCREEN_HEIGHT - SPRITE_HEIGHT:
+                player_y = SCREEN_HEIGHT - SPRITE_HEIGHT
+                is_jumping = False
+                velocity_y = 0
+
+        # Draw
+        screen.fill((50, 50, 50))
+        if facing_right:
+            screen.blit(walk_right_frames[frame_idx], (player_x, player_y))
+        else:
+            screen.blit(walk_left_frames[frame_idx], (player_x, player_y))
+        pygame.display.flip()
+
+    pygame.quit()
+    sys.exit()
+
+if __name__ == "__main__":
+    main()