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Attention | Topic was automatically imported from the old Question2Answer platform. |
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Asked By | djex81 |
Hello, I’ve been struggling with this for a long time and I hope someone can help.
I’m working on a 3D top down space shooter and would like to have the ship always pointing towards the mouse cursor location while using wasd for forward, backward and strafe side to side. I would like to do this with a rigid-body but can not for the life of me figure out how to properly. I know how to rotate towards the mouse not using rigid bodies but since this is a space shooter I would like to use the physic engine.
I am ray casting down to a terrain layer to find the mouse location then calculating the angle between the ship and mouse location. So my question is how do I properly rotate the ship to face towards the mouse cursor while having it play nice in the physics system?
This is what I currently have for my code (does not work as intended):
public override void _Input(InputEvent @event)
{
if (@event is InputEventMouseMotion eventMouseMotion)
{
from = camera.ProjectRayOrigin(GetViewport().GetMousePosition());
to = camera.ProjectRayNormal(GetViewport().GetMousePosition()) * rayLength;
}
}
public override void _IntegrateForces(PhysicsDirectBodyState state)
{
//Rotate to mouse
if (from != Vector3.Zero && to != Vector3.Zero)
{
Godot.Collections.Dictionary ray;
ray = state.GetSpaceState().IntersectRay(from, to);
if (ray["collider"] is CSGMesh)
{
Vector3 resultVector = (Vector3)ray["position"];
Vector3 objectPosition = Translation;
resultVector = objectPosition - resultVector;
float angle = new Vector2(resultVector.x, resultVector.z).AngleTo(new Vector2(objectPosition.x, objectPosition.z));
Transform xform = state.Transform.Rotated(Vector3.Up, angle);
state.Transform = xform;
}
}
//Movement
if (Input.IsActionPressed("player_move_forward"))
{
AddCentralForce(GlobalTransform.basis.z * speed);
}
else if (Input.IsActionPressed("player_move_backward"))
{
AddCentralForce(-GlobalTransform.basis.z * speed);
}
if (Input.IsActionPressed("player_move_left"))
{
AddCentralForce(GlobalTransform.basis.x * speed);
}
else if (Input.IsActionPressed("player_move_right"))
{
AddCentralForce(-GlobalTransform.basis.x * speed);
}
}