void ProcessParentCollider(ArchetypeChunk chunk)
{
var count = chunk.Count;
var parents = chunk.GetNativeArray(ParentType);
var entities = chunk.GetNativeArray(EntityType);
var bounds = chunk.GetNativeArray(BoundsType);
var shapes = chunk.GetNativeArray(ShapeType);
var tags = chunk.GetNativeArray(TagType);
var cellSize = Constants.CellSize;
for (int i = 0; i < count; i++)
{
var entity = entities[i];
var aabb = bounds[i];
var shape = shapes[i];
var tag = tags[i];
var parent = parents[i];
var sourceCollider = new ColliderData
{
Bounds = aabb,
Entity = parent.Value,
ColliderEntity = entity,
Shape = shape.Value,
Tags = tag.Target,
};
var targetCollider = new ColliderData
{
Bounds = aabb,
Entity = parent.Value,
ColliderEntity = entity,
Shape = shape.Value,
Tags = tag.Self,
};
// Add collider to where its center is inside collider map
var hash = HashUtil.Hash(aabb.Center, cellSize);
ColliderSourceMap.Add(hash, sourceCollider);
// Add collider to every cell it stays in + neighbour cells inside target map
var gridBounds = PhysicsUtil.GetGridBounds(aabb, cellSize);
for (int x = gridBounds.x; x < gridBounds.z; x++)
{
for (int y = gridBounds.y; y < gridBounds.w; y++)
{
hash = HashUtil.Hash(new int2(x, y));
ColliderTargetMap.Add(hash, targetCollider);
}
}
}
}
public void ExecuteNext(int key, ColliderData source)
{
var hasValue = TargetMap.TryGetFirstValue(key, out var target, out var iterator);
while (hasValue)
{
// TODO: We need to check collider heights aswell
if (CanCollide(source.Tags, target.Tags) && source.ColliderEntity != target.ColliderEntity && Bounds2D.DoesCollide(source.Bounds, target.Bounds))
{
PossibleCollisions.Add(key, new PossibleCollision
{
SourceEntity = source.Entity,
SourceCollider = source.ColliderEntity,
SourceType = source.Shape,
TargetEntity = target.Entity,
TargetCollider = target.ColliderEntity,
TargetType = target.Shape,
SourceCenter = source.Bounds.Center,
TargetCenter = target.Bounds.Center,
});
}
hasValue = TargetMap.TryGetNextValue(out target, ref iterator);
}
}