exploder.gd

extends Node2D

var resolution = 256
var radius = 512
var force = 80
var force_falloff = 0.08





func explode():
	var pos = get_global_pos()
	var space = get_world_2d().get_direct_space_state()
	
	for i in range( resolution ):
		# get random vector at radius magnitude
		var x = rand_range(-1, 1)
		var y = rand_range(-1,1)
		var blastv = Vector2(x,y).normalized() * radius
		
		# cast ray along vector 
		var end = pos - blastv
		var result = space.intersect_ray( pos, end)

		# blast rigidbody colliders
		if !result.empty():
			var col = result.collider
			if col extends RigidBody2D:
				var dis = (pos - result.position).length()
				var f = force / (dis * force_falloff)
				var forcev = blastv.normalized() * f
				col.apply_impulse( result.position, forcev )