-// Lighting
-extern GLfloat lightColor[];
-extern GLfloat lightPosition[];
-
-extern int moving, startx, starty;
-extern int lightMoving, lightStartX, lightStartY;
-
-/* Time varying or user-controled variables. */
-extern float jump;
-extern float lightAngle, lightHeight;
-extern GLfloat angle;
-extern GLfloat angle2;
-
-/* Near and far parameters - calculates scene size */
-extern GLfloat near;
-extern GLfloat far;
-
-/* Near and far clipping planes - calculates clipping planes */
-extern GLfloat nearClip;
-extern GLfloat farClip;
-
-/* Zoom factor for mouse movements */
-extern GLfloat zoomFactor;
-
-/* Recursion level for floor drawing */
-extern int drawFloorRecurse;