FlatRedBall.Math.MathFunctions

Introduction

The MathFunctions class provides helper methods for performing common game math.

World and Screen Coordinates

World to Pixel

The following code returns the screen pixel coordinates of a PositionedObject. Remember, by by default in world coordinates:

  • Positive X points to the right
  • Positive Y points up

In pixel coordinates

  • Positive X points to the right
  • Positive Y points down (only when dealing with screen pixels)
Add the following using statements
using FlatRedBall.Math;
Assuming myObject is a valid PositionedObject
int screenX = 0;
int screenY = 0;

MathFunctions.AbsoluteToWindow(
   myObject.X,
   myObject.Y,
   myObject.Z,
   ref screenX,
   ref screenY,
   Camera.Main // assuming using the default camera.
);

Pixel to World

See FlatRedBall.Math.MathFunctions.WindowToAbsolute