From 39d7272ede4e1ad75c15c9b7c4394e833df4591b Mon Sep 17 00:00:00 2001
From: Ash Tyndall <git@atyndall.net>
Date: Sat, 22 Oct 2011 13:14:52 +0800
Subject: [PATCH]

---
 globals.h | 4 ++++
 scene.c   | 5 +++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/globals.h b/globals.h
index 5dd4300..fe6d362 100644
--- a/globals.h
+++ b/globals.h
@@ -13,6 +13,10 @@
 #define NTEXTURE 30     // The number of textures (in the models-textures dir)
 #define MAXOBJECTS 256
 
+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#endif
+
 // Meshes and textures arrays
 extern mesh* meshes[];
 extern texture* textures[];
diff --git a/scene.c b/scene.c
index 0834fa2..5dd48fd 100644
--- a/scene.c
+++ b/scene.c
@@ -307,10 +307,11 @@ void motion(int x, int y) {
         // w: left/right, h: near/far
 
         // **NOTE: Currently a work in progress, does not work correctly
+        float angler = 2*M_PI*((rotate*camRotateFactor)/360);
         printf("cam angle: %f\n", rotate*camRotateFactor);
        // float arc = arctan()
-        sceneObjs[curObject].x += diffx * sin(rotate*camRotateFactor) * 0.3;
-        sceneObjs[curObject].z += diffx * cos(rotate*camRotateFactor) * 0.3;
+        sceneObjs[curObject].x += diffx * sin(angler) * 0.3;
+        sceneObjs[curObject].z += diffx * cos(angler) * 0.3;
 
       } else if ( buttonSelected == GLUT_MIDDLE_BUTTON ) {
         // w: big/small
-- 
2.20.1