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Collisions
Mads Hvelplund edited this page Jul 27, 2016
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mini2Dx provides several classes for storing collision data depending on how you want to handle collisions.
The Quad and CollisionPoint classes are useful if all your objects are moving freely and their collision area is represented by a point coordinate.
QuadTree<CollisionPoint> collisions = new PointQuadTree<>(4, 2, 0, 0, 640, 320);
// Add some points
collisions.add(new CollisionPoint(1, 1));
collisions.add(new CollisionPoint(4, 4));
// Get all points in an area
List<CollisionPoint> collisionsInArea = new ArrayList<CollisionPoint>();
collisions.getElementsWithinArea(collisionsInArea, new CollisionBox(2, 2, 6, 6));The RegionQuad and CollisionBox classes are useful if all your objects are moving freely and their collision area is represented by a rectangle.
RegionQuad<CollisionBox> collisions = new RegionQuad<CollisionBox>();
//Add a collision
collisions.add(new CollisionBox(4f, 4f, 2f, 2f));
//Get all collisions in an area
List<CollisionBox> collisionsInArea = new ArrayList<CollisionBox>();
collisions.getElementsWithinRegion(collisionsInArea, new Rectangle(0f, 0f, 2f, 2f));
//collisionsInArea now has a list of collisions intersecting or within the rectangle's areaGetting Started
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