Cocos Debug Draw

The problem

While debugging collisions and AI behaviour in Cocos Creator, console.log is rarely enough — you need to see the shapes.

This plugin ships the most common debug primitives:

• drawLine / drawRect / drawCircle
• Toggles for collider and trigger visualization
• Draw calls are compiled out of release builds automatically

Design trade-off

An early version used a component-based API, but it was verbose to use. It was rewritten as a global singleton with static methods, bringing the call cost down to a single line — which is the main reason teammates adopted it.