Is it possible to have a one way collision?
The object hits the collision from one side, but it can go through the collision from other sides.
In a racing game, I need this feature to prevent the player from going in the wrong direction.
What exactly do you mean? Is this a 2D top down or 3D? Where are the objects? Is it like a checkpoint system or something else? What exactly will happen if it comes from the wrong side? Will it stop or turn around?
I want to implement the one-way collision in a 2D top-down perspective. When an object collides with the right side of the collision, for example, it won’t be able to pass. But when colliding with any side other than the right side of the collusion, it will be able to pass through. Just like there were no collision.
I’m clueless on this.
This formula would give you the angle difference between the car and an object I named wall. The value will be below zero for 1 side and negative for the other side.
AngleDifference(Wall.Angle(), Wall.AngleToObject(Car))
Modified, this would give the difference between their angles. So, you could tell if the car was going in the same direction as the wall object.
AngleDifference(Wall.Angle(), Car. Angle())
One of these may help you decide which side the car is on. You could pick the nearest wall or checkpoint object or you could use a collision. What you do from there is up to. It depends on how you’re moving your car.