sea floor fix, commentaries, and pacman fix

pacMan.cpp

@@ -10,6 +10,7 @@ pacMan::pacMan(float posx, float posy, float posz, float velx, float vely, float
     modeTime=0;
 }
 
+// Just update the time, to know how to move the mouth
 void pacMan::animate() {
     if(modeTime==0) {
         time++;
@@ -23,35 +24,46 @@ void pacMan::animate() {
     }
 }
 
+// Draw function
 void pacMan::draw() {
-    x += xInc;
+    x += xInc;  // update coordinates
     y += yInc;
     z += zInc;
 
-    glColor4f(1, 1, 0, 1);
+    glColor4f(1, 1, 0, 1);  // yellow color
 
     glPushMatrix();
-    glTranslatef(x, y, z);
-    glScalef(scale, scale, scale);
 
-    glPushMatrix(); // first side of the pacman
-    glRotatef(-time*5,1,0,0);
-    drawHalfSphere(80, 80, 1);
+    glTranslatef(x, y, z);  // move pacman
+    getCrossProduct(xInc, yInc, zInc, 0, 0, 1); // get cross product
+    glRotatef(getAngle(xInc, yInc, zInc, 0, 0, 1), xcp, ycp, zcp); // rotate to look to where it is moving
+
+    glScalef(scale, scale, scale);  // scale
 
-    glColor4f(0, 0, 0, 0.8);
-    glTranslatef(-0.5,0.5,0.8);
+    // first side of the pacman
+    glPushMatrix(); 
+    // First Half
+    glRotatef(-time*5,1,0,0);   // rotation of the first side
+    drawHalfSphere(80, 80, 1);  // draw it's first half
+
+    // First Eye
+    glColor4f(0, 0, 0, 0.8);    
+    glTranslatef(-0.5,0.5,0.8); // go to the position
     glScalef(0.75/scale, 0.75/scale, 0.75/scale);
-    drawHalfSphere(80,80,2);
+    drawHalfSphere(80,80,2);    // draw a full sphere this time
 
+    // Second Eye
     glScalef(scale/0.75, scale/0.75, scale/0.75);
-    glTranslatef(+1,0,0);
+    glTranslatef(+1,0,0);   // go to the position
     glScalef(0.75/scale, 0.75/scale, 0.75/scale);
-    drawHalfSphere(80,80,2);
+    drawHalfSphere(80,80,2);    // draw a full sphere thi time
 
     glPopMatrix(); // end of first side of pacman
-
+    
     glColor4f(1, 1, 0, 1);
     glPushMatrix(); // second side of the pacman
+
+    // Second Half
     glRotatef(180,0,0,1);
     glRotatef(-time*5,1,0,0);
     drawHalfSphere(80, 80, 1);
@@ -60,6 +72,8 @@ void pacMan::draw() {
     glPopMatrix();
 }
 
+/* Draw half of sphere : Took TP1 and executed just half of the for-loop if sides=1,
+ * or the full loop if sides=2 */
 static void drawHalfSphere(int lats, int longs, int sides) {
         int i, j;
         for(i = 0; i <= lats; i++) {

seaFloor.cpp

@@ -18,7 +18,7 @@ seaFloor::seaFloor() {
 
 void seaFloor::init(Viewer &v) {
      /* read in image for texture */
-    grid = readPPMfile("grid.ppm");
+    grid = readPPMfile("seafloor.ppm");
     /* create a texture object */
     glGenTextures(1, &gridTex);
     /* make it the current texture */

viewer.cpp

@@ -98,9 +98,10 @@ void Viewer::init() {
     addRenderable(&diver); 
     bubble_space=diver.ratio/3;
 
-    time=0;
+    time=0;             // to help in the animation
+    toggleRecord=false; // for saving snapshots
 
-    startTimer(50);
+    startTimer(50);     // timer to come back
 }
 
 // Timed event, called at the time defined in viewer::init() functio.)
@@ -139,7 +140,9 @@ void Viewer::draw() {
         (*it)->draw();
     }
 
-    swapBuffers();          // clean buffers
+    swapBuffers();                  // clean buffers
+
+    if(toggleRecord) saveSnapshot(); // save snapshot if on
 }
 
 void Viewer::animate() {
@@ -196,7 +199,10 @@ void Viewer::keyPressEvent(QKeyEvent *e) {
             glDisable(GL_LIGHTING);
         // ... and so on with all events to handle here!
 
-    } else {
+    } 
+    else if (e->key()==Qt::Key_R) { 
+        toggleRecord = !toggleRecord; }
+    else {
         // if the event is not handled here, process it as default
         QGLViewer::keyPressEvent(e);
     }

viewer.h

@@ -41,6 +41,9 @@ class Viewer : public QGLViewer
                 int time;
                 int bubble_frequency;
                 float bubble_space;
+
+                // Record Variables
+                bool toggleRecord;
 
 /* Scene methods */
 	protected :