Java tutorial
/** This file is part of Cactus2D. Cactus2D is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Cactus2D is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Cactus2D. If not, see <http://www.gnu.org/licenses/>. */ package com.sertaogames.cactus2d.components; import com.badlogic.gdx.math.Vector2; import com.badlogic.gdx.physics.box2d.PolygonShape; import com.sertaogames.cactus2d.Cactus2DApplication; public class BoxCollider extends Collider { public BoxCollider(Vector2 size, Vector2 offset) { this.offset = offset; size.mul(Cactus2DApplication.INV_PHYSICS_SCALE * 0.5f); PolygonShape poly = new PolygonShape(); poly.setAsBox(size.x, size.y); shape = poly; } }