X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=scene.c;h=f9df3c82a42f345abf0964399cae38116c7ecd1c;hb=599da39add7dc804a35f79bd1033a33d9ab048ac;hp=f4467cc9ae0d23d17eb1bc7e76bb8a5205f2e529;hpb=5bdb30f5054f2e6e4831b0fea17b50b56ce7bb10;p=atyndall%2Fcits2231.git

diff --git a/scene.c b/scene.c
index f4467cc..f9df3c8 100644
--- a/scene.c
+++ b/scene.c
@@ -246,9 +246,35 @@ void processLightEvents(int id) {
 
 }
 
-int makeSubmenuFromArray( const char *menuEntries[], void *callback ) {
-  int menuEntriesSize = 54;//sizeof(menuEntries) / sizeof(menuEntries[0]);
-  int menuNumber = menuEntriesSize / 10 + 1;
+/**
+ * Rounds up numbers, from http://stackoverflow.com/questions/3407012/c-rounding-up-to-the-nearest-multiple-of-a-number
+ * @param numToRound Number to round
+ * @param multiple Multiple to round up to
+ * @return Rounded number
+ */
+int roundUp(int numToRound, int multiple) {
+  if(multiple == 0) {
+    return numToRound;
+  }
+
+  int remainder = numToRound % multiple;
+  if (remainder == 0)
+    return numToRound;
+  return numToRound + multiple - remainder;
+}
+
+/**
+ * Makes a submenu from an array of items, splitting the list into subsubmenus
+ * of only 10 items.
+ * @param menuEntries Array of menu items
+ * @param menuEntriesSize Size of menuEntries
+ * @param callback Callback function for this array of menu items
+ * @return Reference to menu created
+ */
+int makeSubmenuFromArray( const char *menuEntries[], unsigned int menuEntriesSize, void *callback ) {
+  if ( menuEntriesSize == 0 ) return -1;
+
+  int menuNumber = roundUp(menuEntriesSize, 10) / 10;
   int submenuObjects[menuNumber-1];
 
   for( int i = 0; i < menuNumber; i++ ) {
@@ -256,9 +282,9 @@ int makeSubmenuFromArray( const char *menuEntries[], void *callback ) {
     int startNum = i*11 - (i-1);
     for ( int j = startNum - 1; j < (startNum+9); j++ ) {
       if ( j == menuEntriesSize ) break; // Detect if we've reached the end of the array
-      glutAddMenuEntry( menuEntries[j], j );
+      glutAddMenuEntry( menuEntries[j], j + 1 );
     }
-  }
+  } 
 
   int mainMenu = glutCreateMenu(callback);
   for ( int i = 0; i < menuNumber; i++ ) {
@@ -266,7 +292,7 @@ int makeSubmenuFromArray( const char *menuEntries[], void *callback ) {
     int startNum = i*11 - (i-1);
     int endNum = startNum + 9;
     if ( i == menuNumber - 1 ) { // We're on the last one
-      endNum = startNum + (menuEntriesSize - startNum);
+      endNum = startNum + (menuEntriesSize - startNum); // Work out final number
     }
     sprintf(name, "%d-%d", startNum, endNum);
     glutAddSubMenu( name, submenuObjects[i] );
@@ -294,44 +320,28 @@ void makeMenu() {
   glutAddMenuEntry("Move Light 2", LIGHT_MOVE_LIGHT_2);
   glutAddMenuEntry("R/G/B/All Light 2", LIGHT_RGBALL_LIGHT_2);
 
-  // Construct add object submenus
-  int addObjectMenu = makeSubmenuFromArray( objectMenuEntries, processObjectEvents );
-
-  // Construct texture/ground texture submenus
-/*  int textureMenuEntries = sizeof(textureMenuEntries) / sizeof(textureMenuEntries[0]);
-  int menuNumber = textureMenuEntries / 10 + 1;
-  int textureSubmenu[menuNumber-1];
-
-  for( int i = 0; i < menuNumber; i++ ) {
-    textureSubmenu[i] = glutCreateMenu(processTextureEvents);
-    int startNum = i*11 - (i-1);
-    for ( int j = startNum - 1; j < (startNum+9); j++ ) {
-      if ( j == objectMenuEntriesSize ) break; // Detect if we've reached the end of the array
-      glutAddMenuEntry( objectMenuEntries[j], j );
-    }
-  }*/
+  // Construct object menu
+  int objectMenuEntriesSize = sizeof(objectMenuEntries) / sizeof(objectMenuEntries[0]);
+  int objectMenu = makeSubmenuFromArray( objectMenuEntries, objectMenuEntriesSize, processObjectEvents );
 
+  // Construct texture / ground texture menus
+  int textureMenuEntriesSize = sizeof(textureMenuEntries) / sizeof(textureMenuEntries[0]);
+  int textureMenu = makeSubmenuFromArray( textureMenuEntries, textureMenuEntriesSize, processTextureEvents );
+  int gTextureMenu = makeSubmenuFromArray( textureMenuEntries, textureMenuEntriesSize, processGTextureEvents );
 
+  // Construct main menu
   int mainMenu = glutCreateMenu(processMainEvents);
-
   glutAddMenuEntry("Rotate/Move Camera", ROTATE_MOVE_CAMERA);
-  glutAddSubMenu("Add object", addObjectMenu);
+  glutAddSubMenu("Add object", objectMenu);
   glutAddMenuEntry("Position/Scale", POSITION_SCALE);
   glutAddMenuEntry("Rotation/Texture Scale", ROTATION_TEXTURE_SCALE);
-  //material
-  
-  
-
-  glutSetMenu(mainMenu);
   glutAddSubMenu("Material", materialMenu);
-  
-  //texture
-  //ground texture
-  //lights
-
-
+  glutAddSubMenu("Texture", textureMenu);
+  glutAddSubMenu("Ground texture", gTextureMenu);
+  glutAddSubMenu("Lights", lightMenu);
   glutAddMenuEntry("Exit", EXIT);
 
+  // Bind to right mouse button
   glutAttachMenu(GLUT_RIGHT_BUTTON);
 }