public void MoveOverridesExistingPosition()
{
var entity = new CobaltEntity();
var expected = new PositionComponent(171, 201);
entity.Move(999, 999);
entity.Move(expected.X, expected.Y);
var actual = entity.Get <PositionComponent>();
// They're value types, they're two separate instances.
Assert.That(actual.X, Is.EqualTo(expected.X));
Assert.That(actual.Y, Is.EqualTo(expected.Y));
}
public void UpdateCallsOnCollideWhenCollisionComponentIsSetAndBoundingBoxesOverlap()
{
// Move them so that they overlap, and test.
var wall = new CobaltEntity();
wall.Move(0, 0);
wall.Set(new CollisionComponent("Wall"));
wall.Set(new SpriteComponent(100, 16));
var player = new CobaltEntity();
player.Move(50, 10); // X/Y overlaps wall
player.Set(new SpriteComponent(32, 32));
var wasCallbackCalled = false;
player.Set(new CollisionComponent("Player", "Wall", (p, w) => wasCallbackCalled = true));
var system = new CollisionSystem();
system.Add(wall);
system.Add(player);
Assert.That(system.Entities.Count == 2, "System doesn't have the player and wall entities.");
system.Update(0.1f);
Assert.That(wasCallbackCalled, Is.True);
// Move them so that they don't overlap, and re-test that it didn't trigger the collision resolution action
wasCallbackCalled = false;
player.Move(999, 888);
system.Update(0.1f);
Assert.That(wasCallbackCalled, Is.False);
}
