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`Setup
SYNC ON
SYNC RATE 60
SET DISPLAY MODE 800,600,32
HIDE MOUSE

`Set gun holding-limb position
gunOffsetX AS FLOAT = 15.0
gunOffsetY AS FLOAT = -20.0
gunOffsetZ AS FLOAT = 20.0

`Make main player object and hide it
MAKE OBJECT CUBE 1,10
HIDE OBJECT 1
`Attach a limb and delete the mesh
MAKE MESH FROM OBJECT 1,1
ADD LIMB 1,1,1
DELETE MESH 1

`Make a weapon and attach it to the limb
MAKE OBJECT BOX 2,10,10,100
GLUE OBJECT TO LIMB 2,1,1

`Make matrix to walk on
make terrain 500,"desert.gsp"



`Variables
xPos AS FLOAT
zPos AS FLOAT
speed AS FLOAT = 10.0

xLook AS FLOAT
yAng AS FLOAT
lookSpeed AS FLOAT = 0.2

`The gun bobbing values
gunBobSpeed AS FLOAT = 6.0
gunBobMove AS FLOAT = 3.0
gunBobHeight AS FLOAT = 1.5

gunBobAng AS FLOAT
gunTurnAng AS FLOAT
gunLookAng AS FLOAT

mouseMovementX AS FLOAT
mouseMovementY AS FLOAT

DO
   `Store mouse movement
   mouseMovementX = MOUSEMOVEX()
   mouseMovementY = MOUSEMOVEY()

   `Control movement using trig
   IF UPKEY()+DOWNKEY()+LEFTKEY()+RIGHTKEY() > 0
      IF UPKEY() = 1
         INC xPos,SIN(yAng)*speed
         INC zPos,COS(yAng)*speed
      ENDIF

      IF DOWNKEY() = 1
         DEC xPos,SIN(yAng)*speed
         DEC zPos,COS(yAng)*speed
      ENDIF

      IF RIGHTKEY() = 1
         INC xPos,COS(yAng)*speed
         INC zPos,-SIN(yAng)*speed
      ENDIF

      IF LEFTKEY() = 1
         DEC xPos,COS(yAng)*speed
         DEC zPos,-SIN(yAng)*speed
      ENDIF

      `Increase gun-bobbing angle   to get gun bobbing
      gunBobAng = WRAPVALUE(gunBobAng+gunBobSpeed)
   ELSE
      `Otherwise slowly change the value to nothing to bring the gun to the centre again
      gunBobAng = CURVEANGLE(0,gunBobAng,10)
   ENDIF

   `Control the gun swaying according to how much the player is turning
   gunTurnAng = CURVEANGLE(WRAPVALUE(mouseMovementX),gunTurnAng,10)
   gunLookAng = CURVEANGLE(WRAPVALUE(mouseMovementY),gunLookAng,10)

   `Position the gun-holding limb and rotate it to give swaying effect
   OFFSET LIMB 1,1,gunOffsetX+SIN(gunBobAng)*gunBobMove,gunOffsetY+ABS(COS(gunBobAng))*gunBobHeight,gunOffsetZ
   ROTATE LIMB 1,1,gunLookAng,gunTurnAng,0

 `Turn player
   yAng = WRAPVALUE(yAng + mouseMovementX*lookSpeed)
   xLook = WRAPVALUE(xLook + mouseMovementY*lookSpeed)

   `Position player object and camera
   POSITION OBJECT 1,xPos,100,zPos
   ROTATE OBJECT 1,0,yAng,0
   PITCH OBJECT DOWN 1,xLook
   POSITION CAMERA xPos,100,zPos
   ROTATE CAMERA xLook,yAng,0
   SYNC
   LOOP