How can I sample random point inside Collision shape?

Questions
1

I want to sample one point inside the collision shape.
I searched the api document, but there is no way to find the position of the collision shape relative to a game object.
Is there any way to sample one random point inside the collision shape?
For example: Random Sampling

2

Box2D has a test_point() function which probably is what you’re after, but this is not part of the Defold API.

A workaround might be using a trigger collision object:

  1. Create a game object containing a 1x1 pixel trigger with a default position outside the collision object.
  2. Move the trigger game object to the point you’d like to check.
  3. Wait for a trigger collision message with enter, indicating it’s inside the collision shape

Another workaround could be using the native Box2D extension or a Lua library like Bump or Hardon collider, all of which can check collisions against a point.

3

Thank you! I will try the methods you suggest!

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