FPS Camera

[Römer123]

Hi guys,
I added a FPS Camera, but I want to control it with WSAD. The problem is that I'm programming with Delphi and NOT with C++. I made a PSKeymap, but it dosen't run with more than 2 actions.
Here is my code:

cpp Code: Select all

 
var Camera: ICameraSceneNode;
  Steuerung: array[1..4] of PSKeyMap;
[...]
  Steuerung[1].Action:=EKA_MOVE_FORWARD;
  Steuerung[1].KeyCode:=KEY_KEY_W;
  Steuerung[2].Action:=EKA_MOVE_BACKWARD;
  Steuerung[2].KeyCode:=KEY_KEY_S;
  Steuerung[3].Action:=EKA_STRAFE_LEFT;
  Steuerung[3].KeyCode:=KEY_KEY_A;
  Steuerung[4].Action:=EKA_STRAFE_RIGHT;
  Steuerung[4].KeyCode:=KEY_KEY_D;
[...]
  Camera:=smgr.addCameraSceneNodeFPS(nil,100,0.03,-1,Steuerung,4,True,3);
 

I'm new and I hope you can help me

[randomMesh]

I don't know much about Delphi, let alone the Delphi wrapper, but it'd try to index the array like this

cpp Code: Select all

 
  Steuerung: array[0..3] of PSKeyMap;
[...]
  Steuerung[0].Action:=EKA_MOVE_FORWARD;
  Steuerung[0].KeyCode:=KEY_KEY_W;
  Steuerung[1].Action:=EKA_MOVE_BACKWARD;
  Steuerung[1].KeyCode:=KEY_KEY_S;
  Steuerung[2].Action:=EKA_STRAFE_LEFT;
  Steuerung[2].KeyCode:=KEY_KEY_A;
  Steuerung[3].Action:=EKA_STRAFE_RIGHT;
  Steuerung[3].KeyCode:=KEY_KEY_D;
 

In all(most all) languages the first element of an array has index 0 instead of 1.

[Römer123]

No this is not the problem. The problem is:

cpp Code: Select all

 
Camera:=smgr.addCameraSceneNodeFPS(nil,100,0.03,-1,Steuerung,4,True,3);
 

Steuerung is an array and this procedure don't handle an array.
I use irrDelphi.

[DiggiDoggi]

Hi Römer123

"Steuerung" is an array indeed, so you have to use: @Steuerung to tell the compiler that you want the address (pointer).

If your compiler use option "Typed @ operator" you'll receive error "Incompatible types PSKeyMap and Pointer". Solution is simple, use:

Addr(Steuerung)

That's all

[Römer123]

Hi,
I don't know how you mean it. Could you please ride the Code? I made it like this:

cpp Code: Select all

 
var Steuerung: array[0..3] of PSKeyMap;  
 
[...]
  Addr(Steuerung);            <- here is the error
  Steuerung[0].Action:=EKA_MOVE_FORWARD;
  Steuerung[0].KeyCode:=KEY_KEY_W;
  Steuerung[1].Action:=EKA_MOVE_BACKWARD;
  Steuerung[1].KeyCode:=KEY_KEY_S;
  Steuerung[2].Action:=EKA_STRAFE_LEFT;
  Steuerung[2].KeyCode:=KEY_KEY_A;
  Steuerung[3].Action:=EKA_STRAFE_RIGHT;
  Steuerung[3].KeyCode:=KEY_KEY_D;
 
  Camera := smgr.addCameraSceneNodeFPS(nil, 100, 0.3, -1, @Steuerung, 3, True, 3);
 

[Römer123]

I fixed it.

Here:

cpp Code: Select all

 
var Steuerung: array[1..4] of SKeyMap;
[...]
  Steuerung[1].Action:=EKA_MOVE_FORWARD;
  Steuerung[1].KeyCode:=KEY_KEY_W;
  Steuerung[2].Action:=EKA_MOVE_BACKWARD;
  Steuerung[2].KeyCode:=KEY_KEY_S;
  Steuerung[3].Action:=EKA_STRAFE_LEFT;
  Steuerung[3].KeyCode:=KEY_KEY_A;
  Steuerung[4].Action:=EKA_STRAFE_RIGHT;
  Steuerung[4].KeyCode:=KEY_KEY_D;
 
Camera:=smgr.addCameraSceneNodeFPS(nil,100,0.03,-1,@Steuerung,4,True,3);