minimicro-tiled

An importer of Tiled JSON maps for the mini-micro system.

Purpose

This libary is used to load and display Tiled maps into mini-micro! Tiled is very useful to quickly create 2D tilemaps. With a few save file tweaks, one can quickly develop Tiled maps and view them in the game with a quick reload.

Due to the nature of mini-micro, there are a few limitations on what features are supported from Tiled.

Usage

minimicro-tiled is easy to use! Simply put the lib/ and res/ folder in the root of your application.

In your application:

import "lib/tiled/tiled"
Tiled = locals["lib/tiled/tiled"]

// ...  

tlevel = Tiled.load("res/tilemaps/dungeon1.json", "res/tilemaps")
if tlevel.error then
   print "Error loading tiled level: " + tlevel.error
   return
end if

//                    Tiled Layer, Display layer, Tileset img index
tlevel.addRenderLayer 0          , 6            , 0
tlevel.setZoom 2
tlevel.render

Note: load and render are expensive functions. Only call them once per layer. You can call render again to change which image set or map data a layer is using, but it might hang the app for a sec.

Tiled Requirements / Limitations

There are a few features that aren't supported in mini-micro. Some might be implemented down the road.

1. Map and tilemap must be saved in json format.
2. Only one image (tilemap) can be used on a layer at a time.
   1. Tilemaps composed of individual images are not supported.
3. Tile rotation is not supported.
4. Object layers are not supported.
5. Isometric tilesets are not supported (yet?).
6. No compression/base64 support on tilemap data (yet).
7. No meta data support on tiles (yet).

Mini-Micro known issues

1. While large maps can be loaded, they are progressively slower to load due to the nature of loading extremely large arrays. On a standard computer, a tiled map of 500x500 (with 250,000 tiles overall) can take about 20 - 30 seconds to load.
2. Only one image can be used per display / tiled layer.
3. Mini-Micro only has 7 display layers in total, so only 7 tiled layers can be used at a time.

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