X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=scene.c;h=a8d9596c57cba66c849a537877481abee49d1cc2;hp=fa90a18a2138f5b921c81a46a17c9915552a5ab8;hb=fe551bcf4f464576a9e1e76acc83ba24d0bfe63c;hpb=6d1e2a49ce7bcb72838bce2b7962d20570dfa84e

diff --git a/scene.c b/scene.c
index fa90a18..a8d9596 100644
--- a/scene.c
+++ b/scene.c
@@ -199,6 +199,9 @@ void windowReshape(int w, int h) {
  * @param y Mouse y position
  */
 void mouse(int button, int state, int x, int y) {
+  if ( glutGetModifiers() == GLUT_ACTIVE_SHIFT ) {
+    button = GLUT_MIDDLE_BUTTON;
+  }
   switch(button) {
     case GLUT_LEFT_BUTTON:
     case GLUT_MIDDLE_BUTTON:
@@ -299,30 +302,24 @@ void motion(int x, int y) {
       break;
 
     case STATE_OBJECT_POSITION_SCALE:
-      //so.x, so.y, so.z
+     
       if ( buttonSelected == GLUT_LEFT_BUTTON ) {
         // w: left/right, h: near/far
+         //so.x, so.y, so.z
         //sceneObjs[curObject].x += (x - startx)*leftrightFactor;
       } else if ( buttonSelected == GLUT_MIDDLE_BUTTON ) {
         // w: big/small, h: up/down
 
         // For big/small scaling, we map negative numbers to 0->1 and positive numbers to 1->inf
-        float diff = (y - starty);
-        float scaling;
+        float diff = (x - startx);
+        float max = (float)height/bigsmallFactor;
+        float scaling = ( diff + max) / max;
 
-        if ( diff < 0 ) {
-          scaling = (diff - -((float)height/2))/(0 - -((float)height/2));
-        } else {
-          scaling = diff;
-        }
-        
-        printf("Diff is %f, Scaling by %f on all axii\n", diff, scaling);
-        sceneObjs[curObject].scale[0] += scaling;
-        sceneObjs[curObject].scale[1] += scaling;
-        sceneObjs[curObject].scale[2] += scaling;
+        sceneObjs[curObject].scale[0] *= scaling;
+        sceneObjs[curObject].scale[1] *= scaling;
+        sceneObjs[curObject].scale[2] *= scaling;
       }
 
-      starty = y;
       startx = x;
       break;