void SubscribeToEvents()
{
Engine.SubscribeToPostUpdate(args =>
{
if (vehicle == null)
return;
Node vehicleNode = vehicle.Node;
// Physics update has completed. Position camera behind vehicle
Quaternion dir = Quaternion.FromAxisAngle(Vector3.UnitY, vehicleNode.Rotation.YawAngle);
dir = dir * Quaternion.FromAxisAngle(Vector3.UnitY, vehicle.Controls.Yaw);
dir = dir * Quaternion.FromAxisAngle(Vector3.UnitX, vehicle.Controls.Pitch);
Vector3 cameraTargetPos = vehicleNode.Position - (dir * new Vector3(0.0f, 0.0f, CameraDistance));
Vector3 cameraStartPos = vehicleNode.Position;
// Raycast camera against static objects (physics collision mask 2)
// and move it closer to the vehicle if something in between
Ray cameraRay = new Ray(cameraStartPos, cameraTargetPos - cameraStartPos);
float cameraRayLength = (cameraTargetPos - cameraStartPos).Length;
PhysicsRaycastResult result = new PhysicsRaycastResult();
scene.GetComponent<PhysicsWorld>().RaycastSingle(ref result, cameraRay, cameraRayLength, 2);
if (result.Body != null)
{
cameraTargetPos = cameraStartPos + cameraRay.Direction * (result.Distance - 0.5f);
}
CameraNode.Position = cameraTargetPos;
CameraNode.Rotation = dir;
});
scene.GetComponent<PhysicsWorld>().SubscribeToPhysicsPreStep(args => vehicle?.FixedUpdate(args.TimeStep));
}
void HandlePostUpdate(PostUpdateEventArgs args)
{
if (character == null)
{
return;
}
Node characterNode = character.Node;
// Get camera lookat dir from character yaw + pitch
Quaternion rot = characterNode.Rotation;
Quaternion dir = rot * Quaternion.FromAxisAngle(Vector3.UnitX, character.Controls.Pitch);
// Turn head to camera pitch, but limit to avoid unnatural animation
Node headNode = characterNode.GetChild("Bip01_Head", true);
if (headNode != null)
{
float limitPitch = MathHelper.Clamp(character.Controls.Pitch, -45.0f, 45.0f);
Quaternion headDir = rot * Quaternion.FromAxisAngle(new Vector3(1.0f, 0.0f, 0.0f), limitPitch);
// This could be expanded to look at an arbitrary target, now just look at a point in front
Vector3 headWorldTarget = headNode.WorldPosition + headDir * new Vector3(0.0f, 0.0f, 1.0f);
headNode.LookAt(headWorldTarget, new Vector3(0.0f, 1.0f, 0.0f), TransformSpace.World);
// Correct head orientation because LookAt assumes Z = forward, but the bone has been authored differently (Y = forward)
headNode.Rotate(new Quaternion(0.0f, 90.0f, 90.0f), TransformSpace.Local);
}
if (firstPerson)
{
if (headNode != null)
{
CameraNode.Position = headNode.WorldPosition + rot * new Vector3(0.0f, 0.15f, 0.2f);
CameraNode.Rotation = dir;
}
}
else
{
// Third person camera: position behind the character
Vector3 aimPoint = characterNode.Position + rot * new Vector3(0.0f, 1.7f, 0.0f);
// Collide camera ray with static physics objects (layer bitmask 2) to ensure we see the character properly
Vector3 rayDir = dir * new Vector3(0f, 0f, -1f);
float rayDistance = touch != null ? touch.CameraDistance : CameraInitialDist;
PhysicsRaycastResult result = new PhysicsRaycastResult();
scene.GetComponent <PhysicsWorld>().RaycastSingle(ref result, new Ray(aimPoint, rayDir), rayDistance, 2);
if (result.Body != null)
{
rayDistance = Math.Min(rayDistance, result.Distance);
}
rayDistance = MathHelper.Clamp(rayDistance, CameraMinDist, CameraMaxDist);
CameraNode.Position = aimPoint + rayDir * rayDistance;
CameraNode.Rotation = dir;
}
}
void SubscribeToEvents()
{
SubscribeToEvent <PostUpdateEvent>(e =>
{
if (vehicle == null)
{
return;
}
Node vehicleNode = vehicle.Node;
// Physics update has completed. Position camera behind vehicle
Quaternion dir = Quaternion.FromAxisAngle(Vector3.UnitY, vehicleNode.Rotation.YawAngle);
dir = dir * Quaternion.FromAxisAngle(Vector3.UnitY, vehicle.Controls.Yaw);
dir = dir * Quaternion.FromAxisAngle(Vector3.UnitX, vehicle.Controls.Pitch);
Vector3 cameraTargetPos = vehicleNode.Position - (dir * new Vector3(0.0f, 0.0f, CameraDistance));
Vector3 cameraStartPos = vehicleNode.Position;
// and move it closer to the vehicle if something in between
Ray cameraRay = new Ray(cameraStartPos, cameraTargetPos - cameraStartPos);
float cameraRayLength = (cameraTargetPos - cameraStartPos).Length;
// Raycast camera against static objects (physics collision mask 2)
var query = new RayOctreeQuery(cameraRay, RayQueryLevel.RAY_TRIANGLE, cameraRayLength, Constants.DRAWABLE_ANY, 2);
PhysicsRaycastResult result = new PhysicsRaycastResult();
scene.GetComponent <PhysicsWorld>().RaycastSingle(ref result, cameraRay, cameraRayLength, 2);
if (result.Body != null)
{
cameraTargetPos = cameraStartPos + cameraRay.Direction * (result.Distance - 0.5f);
}
CameraNode.Position = cameraTargetPos;
CameraNode.Rotation = dir;
});
}
void SubscribeToEvents()
{
Engine.PostUpdate += args =>
{
if (vehicle == null)
{
return;
}
Node vehicleNode = vehicle.Node;
// Physics update has completed. Position camera behind vehicle
Quaternion dir = Quaternion.FromAxisAngle(Vector3.UnitY, vehicleNode.Rotation.YawAngle);
dir *= Quaternion.FromAxisAngle(Vector3.UnitY, vehicle.Controls.Yaw);
dir *= Quaternion.FromAxisAngle(Vector3.UnitX, vehicle.Controls.Pitch);
Vector3 cameraTargetPos = vehicleNode.Position - (dir * new Vector3(0.0f, 0.0f, CameraDistance));
Vector3 cameraStartPos = vehicleNode.Position;
// Raycast camera against static objects (physics collision mask 2)
// and move it closer to the vehicle if something in between
Ray cameraRay = new Ray(cameraStartPos, cameraTargetPos - cameraStartPos);
float cameraRayLength = (cameraTargetPos - cameraStartPos).Length;
PhysicsRaycastResult result = new PhysicsRaycastResult();
scene.GetComponent <PhysicsWorld>().RaycastSingle(ref result, cameraRay, cameraRayLength, 2);
if (result.Body != null)
{
cameraTargetPos = cameraStartPos + cameraRay.Direction * (result.Distance - 0.5f);
}
CameraNode.Position = cameraTargetPos;
CameraNode.Rotation = dir;
};
scene.GetComponent <PhysicsWorld>().PhysicsPreStep += args => vehicle?.FixedUpdate(args.TimeStep);
}
void HandlePostUpdate(PostUpdateEventArgs args)
{
if (character == null)
return;
Node characterNode = character.Node;
// Get camera lookat dir from character yaw + pitch
Quaternion rot = characterNode.Rotation;
Quaternion dir = rot * Quaternion.FromAxisAngle(Vector3.UnitX, character.Controls.Pitch);
// Turn head to camera pitch, but limit to avoid unnatural animation
Node headNode = characterNode.GetChild("Bip01_Head", true);
float limitPitch = MathHelper.Clamp(character.Controls.Pitch, -45.0f, 45.0f);
Quaternion headDir = rot * Quaternion.FromAxisAngle(new Vector3(1.0f, 0.0f, 0.0f), limitPitch);
// This could be expanded to look at an arbitrary target, now just look at a point in front
Vector3 headWorldTarget = headNode.WorldPosition + headDir * new Vector3(0.0f, 0.0f, 1.0f);
headNode.LookAt(headWorldTarget, new Vector3(0.0f, 1.0f, 0.0f), TransformSpace.World);
// Correct head orientation because LookAt assumes Z = forward, but the bone has been authored differently (Y = forward)
headNode.Rotate(new Quaternion(0.0f, 90.0f, 90.0f), TransformSpace.Local);
if (firstPerson)
{
CameraNode.Position = headNode.WorldPosition + rot * new Vector3(0.0f, 0.15f, 0.2f);
CameraNode.Rotation = dir;
}
else
{
// Third person camera: position behind the character
Vector3 aimPoint = characterNode.Position + rot * new Vector3(0.0f, 1.7f, 0.0f);
// Collide camera ray with static physics objects (layer bitmask 2) to ensure we see the character properly
Vector3 rayDir = dir * new Vector3(0f, 0f, -1f);
float rayDistance = touch != null ? touch.CameraDistance : CameraInitialDist;
PhysicsRaycastResult result = new PhysicsRaycastResult();
scene.GetComponent<PhysicsWorld>().RaycastSingle(ref result, new Ray(aimPoint, rayDir), rayDistance, 2);
if (result.Body != null)
rayDistance = Math.Min(rayDistance, result.Distance);
rayDistance = MathHelper.Clamp(rayDistance, CameraMinDist, CameraMaxDist);
CameraNode.Position = aimPoint + rayDir * rayDistance;
CameraNode.Rotation = dir;
}
}
