Hey, I am having a bit of trouble trying to remember how to get an angle in radians with two points. I have an object that I want to rotate to face whereever the mouse is currently at. So what I have to work with is the Mouse XY Postion and the Objects XY Position. I assume you just handle it like a right triangle? And get the angle. Here is something I tried using vectors, but I guess I am messing something up as it isn''t working right: (The +18''s are just to get to the center of the object)

//Vector U Ux = mouse_PosX - (Object->GetPosX()+18); Uy = mouse_PosY - (Object->GetPosY()+18); //Vector V Vx = mouse_PosX - (Object->GetPosX()+18); Vy = (Object->GetPosY()+18) - (Object->GetPosY()+18); Ulength = sqrt(pow(Ux,2) + pow(Uy,2)); Vlength = sqrt(pow(Vx,2) + pow(Vy,2)); Object->SetAngle( acos( ( (Ux*Vx)+(Uy*Vy) )/(Ulength*Vlength) ) );

Any ideas what I am doing wrong or other suggestions how to do this. Thanks, -Peddler

This should work.

uX = mouse_PosX - (Object -> GetXPos() + 18);uY = mouse_PosY - (Object -> GetYPos() + 18);angle = atan2(uY, uX);