-extern GLfloat zoom, rotate;
-extern GLfloat zoomFactor, rotateFactor;
+extern GLfloat zoom, rotate, camAngle;
+extern GLfloat zoomFactor, rotateFactor, camAngleFactor;
+extern GLfloat leftrightFactor, nearfarFactor, bigsmallFactor, updownFactor;
+
+/* Texture state tracking */
+extern int currentGroundTexture, currentMeshTexture;