X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=scene.c;h=39ff405faa73a3fe9433fdde86c30c0defc1acac;hp=ffa63dd14f3f7cf7b7772685e66766999cb985c0;hb=3ffbf1f81f45280aaa92e8c9844868a2d1964ac4;hpb=876a9341282f91027829f3e544ad4e4a7215c682

diff --git a/scene.c b/scene.c
index ffa63dd..39ff405 100644
--- a/scene.c
+++ b/scene.c
@@ -168,8 +168,8 @@ void makeMenu() {
   glutCreateMenu(processMainEvents);
   glutAddMenuEntry("Rotate/Move Camera", M_ROTATE_MOVE_CAMERA);
   glutAddSubMenu("Add object", objectMenu);
-  //glutAddMenuEntry("Position/Scale", M_POSITION_SCALE);
-  //glutAddMenuEntry("Rotation/Texture Scale", M_ROTATION_TEXTURE_SCALE);
+  glutAddMenuEntry("Position/Scale", M_POSITION_SCALE);
+  glutAddMenuEntry("Rotation/Texture Scale", M_ROTATION_TEXTURE_SCALE);
   //glutAddSubMenu("Material", materialMenu);
   glutAddSubMenu("Texture", textureMenu);
   glutAddSubMenu("Ground texture", gTextureMenu);
@@ -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 ( button == GLUT_LEFT_BUTTON && glutGetModifiers() == GLUT_ACTIVE_SHIFT ) {
+    button = GLUT_MIDDLE_BUTTON; // Holding shift with left button is the same as the middle button
+  }
   switch(button) {
     case GLUT_LEFT_BUTTON:
     case GLUT_MIDDLE_BUTTON:
@@ -283,13 +286,14 @@ void motion(int x, int y) {
 
   switch ( manipulateState ) {
     case STATE_CAMERA_ROTATE_MOVE:
+      // w: rotate
       rotate += (x - startx);
 
       if ( buttonSelected == GLUT_LEFT_BUTTON ) {
-        // w: rotate, h: zoom
+        // h: zoom
         zoom += (y - starty);
       } else if ( buttonSelected == GLUT_MIDDLE_BUTTON ) {
-        // w: rotate, h: tilt
+        // h: tilt
         camAngle += (y - starty);
       }
 
@@ -299,15 +303,31 @@ 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
-        sceneObjs[curObject].x += (x - startx);
+         //so.x, so.y, so.z
+        //sceneObjs[curObject].x += (x - startx)*leftrightFactor;
+
+        sceneObjs[curObject].x += (x - startx) * sin(90 - camAngle*camAngleFactor);
+        sceneObjs[curObject].z += (x - startx) * cos(90 - camAngle*camAngleFactor);
       } else if ( buttonSelected == GLUT_MIDDLE_BUTTON ) {
-        // w: big/small, h: up/down
+        // w: big/small
+        float diff = (x - startx);
+        float max = (float)height/bigsmallFactor;
+        float scaling = ( diff + max) / max;
+
+        sceneObjs[curObject].scale[0] *= scaling;
+        sceneObjs[curObject].scale[1] *= scaling;
+        sceneObjs[curObject].scale[2] *= scaling;
+
+        // h: up/down
+        sceneObjs[curObject].y -= (y - starty) * updownFactor;
       }
 
+      starty = y;
       startx = x;
+
       break;
 
     case STATE_OBJECT_ROTATION_TEXTURE_SCALE:
@@ -358,7 +378,7 @@ void display() {
     0.0,  10.0,  0.0   /* up is in postivie Y direction */
     );
 
-  glRotatef(camAngle*camAngleFactor, 1.0, 0.0, 0.0);
+  glRotatef(camAngle*camAngleFactor, 1.0, 0.0, 0.0); // Set camera angle upward
 
   /* Reposition the light source 0. */
   lightPosition0[0] = 12*cos(lightAngle0);