impactjs-minimap

This is a minimap plugin for ImpactJS.

Features

• Generate multiple(!) minimaps in different sized (e.g. minimap vs. commander map) on the fly, no "pre-rendered" images needed
• Choose which layers of the map should be displayed on the minimap
• Display entities and their movement by entity type on the map
• Choose if you want the entities displayed as a rectancle or as an image
• Change color, size, offset of entity indicators
• Show viewport of the user on the minimap

Installation

• To use the minimap plugin simply copy the "minimap.js" file in your plugins folder of your ImpactJS installation.
• Register the plugin in your main.js:

.requires(
	'plugins.minimap'
)

• Call the "generateMiniMap" function to initialise the minimap in your main.js AFTER(!) the loadLevel call:

MyGame = ig.Game.extend({
    init: function() {
    this.loadLevel(LevelTest);
    this.generateMiniMap("minimap", 150, 150, [0,1]);
});

• Add the minimap draw calls to your main.js:

draw: function() {
    this.parent();
    this.drawMiniMap("minimap", (ig.system.width - 150 - 8), 8, ["EntityPlayer"], true);

• If you want to display entities on the map add the minimap configuration to the entity file (e.g. /entities/player.js):

EntityPlayer = EntityClient.extend({
    miniMap: { mapColor: '#0000FF', mapSize: 4 },
    ...
});

Configuration

There are two functions you need to call:

generateMiniMap():

This function needs to be called in your "init" function. It will generate the minimap graphic from the big playable map and cache it for later usage. You can add the following parameters:

Parameter	Description
name	This parameter defines the name of the minimap. All the time later when you want to draw the map you need to use it as a reference
width	Width of the minimap
height	Height of the minimap
layer	An array of layers (of the map) you want to display on the minimap.

drawMiniMap();

This function needs to be called in your "draw" function. It will display the minimap in your canvas:

Parameter	Description
name	The map you want to display (as you have defined in the generateMiniMap() function
posx	Position X where you want to display the minimap
posy	Position Y where you want to display the minimap
entities	An array of entities you want to display on the map (entitytype)
showviewport	[true/false] Should the viewport be displayed on the minimap?
viewportcolor	Define the color of the displayed viewport

Entity configuration

EntityPlayer = EntityClient.extend({
    miniMap: { mapColor: '#0000FF', mapSize: 4, icon: 'media/playericon.png', iconOffset: {x: 0, y: 0} },
    ...
});

If you want to display the entities and their positions on the minimap, you need to add a configuration parameter "miniMap" to the entity. You can use the following paramters:

Parameter	Description
mapColor	The color of the entity on the minimap
mapSize	The size of the entity on the minimap
icon	If you want to display a graphic instead of the colored rectange, you can define it here
iconOffset	If the icon should be displayed with an offset, it can be defined here

Support impactjs-minimap development

Contribute

You're welcome to contribute to this plugin by creating a pull requests or feature request in the issues section.

License

This bundle is available under the MIT license.