void _TestMove(ref float dt, Vector2 ourVelocity, T2DCollisionComponent theirCollider, List<T2DCollisionInfo> collisions)
{
ReadOnlyArray<T2DCollisionImage> theirImages = theirCollider.Images;
for (int i = 0; i < _collisionImages.Count; i++)
{
T2DCollisionImage ourImage = _collisionImages[i];
for (int j = 0; j < theirImages.Count; j++)
{
T2DCollisionImage theirImage = theirImages[j];
// Colliders need to know how to collide with objects with lower priority but not higher
if (ourImage.Priority >= theirImage.Priority)
ourImage.TestMove(ref dt, ourVelocity, theirImage, collisions);
else
theirImage.TestMoveAgainst(ref dt, ourVelocity, ourImage, collisions);
}
}
}
/// <summary>
/// Test to see if SceneObject can move from current position along given velocity for given amount of time
/// without colliding with world limits.
/// </summary>
/// <param name="dt">Duration to move object, in seconds.</param>
/// <param name="searchBox">Box containing entire swept path of object bounds. Used to short cut world bounds check.</param>
/// <param name="velocity">Velocity of object.</param>
/// <param name="collider">Collision component of object.</param>
/// <param name="collisions">List of collisions encountered during move.</param>
public void TestMove(ref float dt, RectangleF searchBox, Vector2 velocity, T2DCollisionComponent collider, List<T2DCollisionInfo> collisions)
{
if (WorldLimitResolveCollision != null || OnWorldLimit != null)
{
ReadOnlyArray<T2DCollisionImage> images = SceneObject.Collision.Images;
for (int i = 0; i < images.Count; i++)
{
T2DCollisionImage image = images[i];
if (searchBox.X + searchBox.Width > _moveLimitMax.X)
{
// test against max x
_worldLimitPoly[0] = new Vector2(_moveLimitMax.X, _moveLimitMin.Y - 5.0f);
_worldLimitPoly[1] = new Vector2(_moveLimitMax.X, _moveLimitMax.Y + 5.0f);
_worldLimitImage.CollisionPolyBasis = _worldLimitPoly;
image.TestMove(ref dt, velocity, _worldLimitImage, collisions);
}
if (searchBox.X < _moveLimitMin.X)
{
// test against min x
_worldLimitPoly[0] = new Vector2(_moveLimitMin.X, _moveLimitMax.Y + 5.0f);
_worldLimitPoly[1] = new Vector2(_moveLimitMin.X, _moveLimitMin.Y - 5.0f);
_worldLimitImage.CollisionPolyBasis = _worldLimitPoly;
image.TestMove(ref dt, velocity, _worldLimitImage, collisions);
}
if (searchBox.Y + searchBox.Height > _moveLimitMax.Y)
{
// test against max y
_worldLimitPoly[0] = new Vector2(_moveLimitMax.X + 5.0f, _moveLimitMax.Y);
_worldLimitPoly[1] = new Vector2(_moveLimitMin.X - 5.0f, _moveLimitMax.Y);
_worldLimitImage.CollisionPolyBasis = _worldLimitPoly;
image.TestMove(ref dt, velocity, _worldLimitImage, collisions);
}
if (searchBox.Y < _moveLimitMin.Y)
{
// test against min y
_worldLimitPoly[0] = new Vector2(_moveLimitMin.X - 5.0f, _moveLimitMin.Y);
_worldLimitPoly[1] = new Vector2(_moveLimitMax.X + 5.0f, _moveLimitMin.Y);
_worldLimitImage.CollisionPolyBasis = _worldLimitPoly;
image.TestMove(ref dt, velocity, _worldLimitImage, collisions);
}
}
}
}
