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Dark GDK / Rotating Sprites. problem center point of rotation

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darbiter

Years of Service

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Joined: 27th Oct 2009

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Posted: 3rd Nov 2009 11:57

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Hi

I am making a quite simple game of spaceships (like Asteroids if you want).

I have a ship wich rotates and moves, but rotates from the top left corner, and not from center of the picture.
Player ship is sprite #3.

+ Code Snippet

if ( dbLeftKey ( ) )
		ship_angle = ship_angle - 2 ;
		if ( dbRightKey ( ) )
		ship_angle = ship_angle + 2;
			if ( dbUpKey ( ) )
		dbMoveSprite ( 3,  2 );
				if ( dbDownKey ( ) )
		dbMoveSprite ( 3,  -2 );
				
				dbRotateSprite (3, ship_angle ) ;
				dbSync ( );

How can I change the center point of rotation to the center of the ship?

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