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Member Since 10 Feb 2013
Offline Last Active Feb 10 2013 11:45 AM

Topics I've Started

Collision Correction

10 February 2013 - 11:48 AM

Dear Community; I have a Problem with the Correction after a Collision in a Platformer I try to create. I have tried many things and all have magically failed. Now, I turn to you, as I feel like I might need some external help with the Problem.


I use Java and I have a Entity class, which has a function called collide with a list of other Game Objects. If I find a Collision, I add it to an Array of colliding objects. Now, I would need to work out how to move the this object out all those collisions.


My coordinate System is also oriented with the y axis pointing downwards, meaning the bigger the y value, the lower the object on the screen.


Objects are represented like this:



And the Objects I collide are determined like this.

	public void collide(ArrayList<Entity> objectsToCollide){
		ArrayList<Entity> CorrectionEntities = new ArrayList<Entity>();
		for(int i = 0; i < objectsToCollide.size(); i++){
			Entity currentCollisionObject = objectsToCollide.get(i);
			if(currentCollisionObject == this)
			if(Entity.entityBoxesIntersect(this, currentCollisionObject)){
		if(CorrectionEntities.size() == 0)
		for(int i = 0; i < CorrectionEntities.size(); i++){
			//TODO: Correct Position


Now the correction is supposed to happenn at the TODO marking, I put it there, as the other trials have failed horribly.


Thank you very much for your help,