camera pick is not working correctly.

[ghoflvhxj]

Hello guys. please look this video.

I could not pick some entities. why?

[macklebee]

It would be a lot easier if we had code to review and try for ourselves. The video is nice as it shows what the effects of the issue but doesn't help us see what you are doing wrong. Show us your pick code. Or better yet, make a small example map and available code that we can easily try. 

 

[ghoflvhxj]

On 5/2/2018 at 11:38 AM, macklebee said:

It would be a lot easier if we had code to review and try for ourselves. The video is nice as it shows what the effects of the issue but doesn't help us see what you are doing wrong. Show us your pick code. Or better yet, make a small example map and available code that we can easily try. 

 

ok, here is my code.

bool Player::Pick()
{
	//if player grab the entity, return true.
	if (pick_state == PICK_UP)
		return true;

	pick_state = PICK_EMPTY;
	pick_image = nullptr;

	if (!camera->Pick(context_halfwidth, context_halfheight, pickinfo))
		return false;

	pick = pickinfo.GetEntity();

	std::cout << pick->GetClassNameA() << " " << classname << std::endl;
	std::cout << pick->GetPhysicsMode() << " " << physics << std::endl;
	std::cout << pick->GetCollisionType() << " " << collision << std::endl;
  
  	if (window->KeyDown(Leadwerks::Key::R))
	{
		Leadwerks::Vec3 a = Leadwerks::Transform::Point(pickinfo.position, pick, nullptr);
		t->SetPosition(a);
	}
	
	//Check classname, physicsmode, collisiontype
	if (pick->GetClassNameA() != "Model" || pick->GetPhysicsMode() != Leadwerks::Entity::RigidBodyPhysics || pick->GetCollisionType() != Leadwerks::Collision::Prop)
		return false;

	//Check distance and mass
	if (pick->GetDistance(character) > pick_distance_limit || pick->GetMass() > pick_mass_limit)
		return false;
	
	pick_state = PICK_PICK;
	pick_image = hand_pick;
	return true;
}

void Player::PickUp()
{
	//Check distance
	if (pick->GetDistance(character) > pick_distance_limit)
	{
		PickInit();
		return;
	}

	//if the entity's first pick 
	if (pick_state == PICK_PICK)
	{
		pick_mass = pick->GetMass();

		//Transformation of the pick position from localspace to globalspace.
		Leadwerks::Vec3 pick_pos = Leadwerks::Transform::Point(pickinfo.position, pick, nullptr);
		//Create joint
		pick_joint = Leadwerks::Joint::Kinematic(pick_pos.x, pick_pos.y, pick_pos.z, pick);
		pick_joint->SetFriction(1000, 10000 - pick_mass * pick_mass * 10);

		joint_target_pos_gap = pick->GetPosition(true) - pick_pos;
	}
	else
	{
		Leadwerks::Vec3 camera_target_pos = camera_pivot->GetPosition(false);
		camera_target_pos.z += 1.2;

		camera_target_pos = Leadwerks::Transform::Point(camera_target_pos, camera_pivot, nullptr);
      
		//Joint work
		Leadwerks::Vec3 joint_target_pos = camera_target_pos + joint_target_pos_gap;
		pick_joint->SetTargetPosition(joint_target_pos, 1.0f - (pick_mass * 2.0)/100);
	}

	pick_state = PICK_UP;
	pick_image = hand_grab;
}

 

Additionally, the ClassName of the entities in the video are "Model", "PhysicsMode" is "RigidBodyPhysics" and "CollisionType" is "Prop".

And, the entitiy that did not 'pick' from 10 to 25 seconds of video were 'pick' after the collision at 27sec.