Rotating A Point

Game Mechanics
#1

I am rotating a sprite in game around the center, and need to find out where a certain point is, from the original, so for example in the original a point at (1, 1) on the 64 x 128 image. I need to find that point after the rotation. I am using slick2d as my graphics library

#2

This is what I use to rotate points, only I use Vector2D, but it works the same way.


	public static Vector2D rotate(Vector2D origin,Vector2D point, double theta){
		double s = Math.sin(theta);
		double c = Math.cos(theta);
		// get the deltaX and deltaY
		point.x -= origin.x;   
	    point.y -= origin.y;   

	    // rotate point   
	   	double xnew = point.x * c - point.y * s;   
	    double ynew = point.x * s + point.y * c; 

	    // translate point back to global coords:
	    Vector2D TranslatedPoint = new Vector2D(0,0);
	    TranslatedPoint.x = xnew + origin.x;  
	    TranslatedPoint.y = ynew + origin.y; 

	    return TranslatedPoint;
		 
	}
#3

Oh cool thanks, i found a way like this of wikipedia’s rotation page, but thanks for the help anyways