LightSystem

LittleJS Light System Plugin

• Adds 2D dynamic lighting to the scene
• Lights are first-class EngineObjects (the Light class)
• Each Light draws a soft falloff blob of its color into a shared lightmap
• Lights accumulate ADDITIVELY in the lightmap (red + blue = magenta)
• The lightmap is then MULTIPLIED with the scene during composite, so unlit areas go to the ambient color and lit areas show the scene tinted by the accumulated light color
• Draw the world at full brightness — the lightmap does the darkening
• Any EngineObject may override renderLight() to additively contribute to the lightmap (e.g. emissive lava tiles, weapon flashes, glowing crystals)
• Must be constructed BEFORE PostProcessPlugin so post-process sees lit pixels