Method TestPoint

CollisionB2ShapePolygon.go:262–273

(xf B2Transform, p B2Vec2)

}

func (poly B2PolygonShape) TestPoint(xf B2Transform, p B2Vec2) bool {
	pLocal := B2RotVec2MulT(xf.Q, B2Vec2Sub(p, xf.P))

	for i := 0; i < poly.M_count; i++ {
		dot := B2Vec2Dot(poly.M_normals[i], B2Vec2Sub(pLocal, poly.M_vertices[i]))
		if dot > 0.0 {
			return false
		}
	}

	return true
}

func (poly B2PolygonShape) RayCast(output *B2RayCastOutput, input B2RayCastInput, xf B2Transform, childIndex int) bool {