X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=scene.c;h=3f211b4028f12f612d8d09e63c89ba00c24aa67c;hb=3d2cc99d5a436f3f1febf9e4b8508388398b6879;hp=a1ff085702f745f036240cac9d048859a5ed76dd;hpb=63e9aefdfc12daef518074efa3021b7b9a0f5d38;p=atyndall%2Fcits2231.git

diff --git a/scene.c b/scene.c
index a1ff085..3f211b4 100644
--- a/scene.c
+++ b/scene.c
@@ -302,9 +302,17 @@ void motion(int x, int y) {
       //so.x, so.y, so.z
       if ( buttonSelected == GLUT_LEFT_BUTTON ) {
         // w: left/right, h: near/far
-        sceneObjs[curObject].x += (x - startx);
+        //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 = (x - startx);
+        float scaling = ( diff + (float)height/bigsmallFactor ) / ( (float)height/bigsmallFactor );
+
+        sceneObjs[curObject].scale[0] *= scaling;
+        sceneObjs[curObject].scale[1] *= scaling;
+        sceneObjs[curObject].scale[2] *= scaling;
       }
 
       startx = x;