Sparkys Raycast Problem - GameCreators Forum

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Tv Xxx

17

Years of Service

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Joined: 23rd Sep 2007

Location: Behind You!

Posted: 31st Aug 2008 15:43

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Ok Its Shooting Bassically,

Ive used

Sc_SetupObject ( 4, 0, 2 ); For My Box Which Is Positioned At The Gun.

and

Sc_SetupCOmplexObject ( 100, 0, 2 ); For My Terrain.

Here Is My Shooting Code

+ Code Snippet

void ShootGun ()
{

   dbPositionObject ( 4, dbObjectPositionX(3), dbObjectPositionY(3), dbObjectPositionZ(3) );
   dbRotateObject ( 4, dbObjectAngleX(2), dbObjectAngleY(2), dbObjectAngleZ(2) );

   oldx = dbObjectPositionX(4);
   oldy = dbObjectPositionY(4);
   oldz = dbObjectPositionZ(4);
   dbMoveObject ( 4, -10000 );
   newx = dbObjectPositionX(4);
   newy = dbObjectPositionY(4);
   newz = dbObjectPositionZ(4);
   dbMoveObject ( 4, 10000 );

   collide == SC_RayCast ( 4, oldx, oldy, oldz, newx, newy, newz, 0 );

   dbText ( 0, 10, dbStr( collide ) );

}

So Is When U Shoot A Collision Is Made, It Tells You Which Object, But It Always Returns 0 (No Collisions)

So Any Ideas>?

Cheers
Tv.

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dark coder

21

Years of Service

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Joined: 6th Oct 2002

Location: Japan

Posted: 31st Aug 2008 18:50

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Quote: "collide == SC_RayCast ( 4, oldx, oldy, oldz, newx, newy, newz, 0 );
"

You should be using the assignment '=' operator here. Also make sure you update the collision(SC_UpdateObject()) for dynamic meshes when they move. Also for raycasting you don't need to setup that object number 4(from the looks of it at least), as the raycasting commands merely take 2 world-space positions(as well as other odd values) and return if they hit anything. The ray itself isn't bound to an object.

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Tv Xxx

17

Years of Service

User Offline

Joined: 23rd Sep 2007

Location: Behind You!

Posted: 4th Sep 2008 17:47

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Ok DarkCoder,
got rid of object 4's setup

and my shooting code is now...

+ Code Snippet

void Shooting();
{
   dbPositionObject ( 4, dbObjectPositionX(3), dbObjectPositionY(3), dbObjectPositionZ(3) );
   dbRotateObject ( 4, dbObjectAngleX(2), dbObjectAngleY(2)-180, dbObjectAngleZ(2) );

   float oldx = dbObjectPositionX(4);
   float oldy = dbObjectPositionY(4);
   float oldz = dbObjectPositionZ(4);
   dbMoveObject( 4, 2000 );
   float x = dbObjectPositionX(4);
   float y = dbObjectPositionY(4);
   float z = dbObjectPositionZ(4);
   dbMoveObject( 4, -2000 );
			
   collide = SC_RayCastGroup( 0, oldx, oldy, oldz, x, y, z, 0 );

   dbText ( 0, 10, dbStr( collide ) );
}

Still Nothing.

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Dark GDK / Sparkys Raycast Problem