Tiled file format support for Amethyst

This crate adds prefab loading functionality for Tiled tilemaps into the amethyst game engine.

Usage

Initialization

When creating your game, initialize the the prefab loader and include the tile map rendering pass amethyst_tiles::RenderTiles2D.

use tiled_support::{TileGid, TileMapPrefab};
use amethyst::tiles::{RenderTiles2D, FlatEncoder};

let game_data = GameDataBuilder::default()
    .with_system_desc(PrefabLoaderSystemDesc::<TileMapPrefab>::default(), "", &[])
    .with_bundle(
        RenderingBundle::<DefaultBackend>::new()
            .with_plugin(RenderTiles2D::<TileGid, FlatEncoder>::default()),
    )?;

Note: FlatEncoder is mentioned explicitly due to a bug in the default encoder MortonEncoder2D. This bug will likely be fixed very soon.

Loading a tile map

A tile map can be loaded like any other prefab and added to a texture.

use tiled_support::{TiledFormat, TileMapPrefab};

let prefab_handle =
    world.exec(|loader: PrefabLoader<'_, TileMapPrefab>| {
        loader.load("prefab/example_map.tmx", TiledFormat, ())
    });

let _map_entity = world
    .create_entity()
    .with(prefab_handle)
    .with(Transform::default())
    .build();

Features to add:

A list of features I would like to add in the future, but havent had time to do yet.

• Only pack sprites that used in the tile map to save memory and load time spent packing ignored sprites
• Support all image/pixel types (Currently only supports Rgba8) Currently all images are converted to Rgba8
• Use amethyst::error::Error everywhere when parsing for consistency
• Mark flipped tiles so they can be correctly managed by amethyst
• Support animation sequences via tiles that swap textures periodically
• Create an easy way to access layer objects stored in tile maps
• Support image layers

Please make an issue if I'm forgetting something important in this list