Module pacai.ui.spritesheet

The graphics for pacman are held in a spritesheet. This file knows how to read a spritesheet and map sprites to tokens.

Functions

def loadSpriteSheet(path)

Expand source code

def loadSpriteSheet(path):
    spritesheet = Image.open(path)

    sprites = {}

    # Load the food.
    miscColumnIndex = 0
    for foodTypeBase in SPRITE_SHEET_FOOD_TYPES:
        for foodItem in [token.FOOD_OFFSET, token.CAPSULE_OFFSET]:
            foodToken = foodTypeBase + foodItem
            sprites[foodToken] = _cropSprite(spritesheet, MISC_ROW, miscColumnIndex)
            miscColumnIndex += 1

    # The scared ghost is after the food.
    sprites[token.SCARED_GHOST_TOKEN] = _cropSprite(spritesheet, MISC_ROW, miscColumnIndex)

    # Load all the wall sprites.
    for (wallTypeBase, row) in SPRITE_SHEET_WALL_TYPES:
        for wallIndex in range(len(SPRITE_SHEET_WALL_ORDER)):
            adjacentWalls = SPRITE_SHEET_WALL_ORDER[wallIndex]
            wallToken = token.getWallToken(wallTypeBase, *adjacentWalls)

            sprites[wallToken] = _cropSprite(spritesheet, row, wallIndex)

    # Load all the agents.
    for (agentBaseToken, row) in SPRITE_SHEET_AGENTS:
        # Load the stopped sprite.
        sprites[agentBaseToken] = _cropSprite(spritesheet, row, 0)

        # Now load animations.
        for direction in Directions.CARDINAL:
            for frame in range(token.ANIMATION_CYCLE):
                # We need the offset to crop the sprite, so pass 0 in as the base token.
                animationOffset = token.getAnimationToken(0, direction, frame)
                agentToken = agentBaseToken + animationOffset
                sprites[agentToken] = _cropSprite(spritesheet, row, animationOffset)

    return sprites