Concentration Game

[CangoJoe]

Hey all,

I thought I'd try my hand out at another Leadwerks Tournament game. I wanted to make a Concentration type game where you select 2 crates and compare them.

 

 

 

 

 

 

I used a modified version of the Spectator.lua script where I locked the camera in place, disabled movement and enabled the onscreen mouse.

The player will click Mouse Button 1 to select 2 crates and then the crates are compared. The problem I'm having is detecting where the cursor (MousePosition) is in relation to the world (what its hovering over) in order to determine which crate was clicked. Is there a way to convert mouse position to a world position?

I was thinking I could do something as seen below in order to Pick() objects below the cursor/MousePosition (pseudo code):

If MouseDown(1)

     If world:Pick(MousePositionVector, WorldPositionVector, pickinfo, 0, true, 1) then

         IsValidCrate() --Determine if a crate was clicked

         CompareCrate() --Compare crate

         DoStuff() --Despawn crates, tally score, fanfare, etc..

      End

End

Perhaps there's a better way?

Thanks in advance for any input!

-can

[AggrorJorn]

Pseudo approach

• Create a vector3 that represents your mouse in 3d. Use this https://www.leadwerks.com/learn?page=API-Reference_Object_Entity_Camera_UnProject
• By changing the Z value of the above vector you determine how far the pick goes.
• Your raycast now 'shoots' from the mouseposition to the direction the camera is looking at with a given (z axis) length.

[CangoJoe]

Thanks AggrorJorn

That's exactly what I was looking for!