X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=helper.c;h=8135854e751bdd83c6c4f770ab6480ffa2a71e00;hp=ad20eb7bbd10981df1bfdd13734cdcc68366022b;hb=5b211bce232b1e75aa7cd3a08c533a8dd446f2fa;hpb=74c5d360c0a9fa9e125d4d2098fe604fb7d5e767;ds=inline

diff --git a/helper.c b/helper.c
index ad20eb7..8135854 100644
--- a/helper.c
+++ b/helper.c
@@ -207,79 +207,180 @@ int makeSubmenuFromArray( const char *menuEntries[], unsigned int menuEntriesSiz
 }
 
 /**
- * Recursive function to draw a square by drawing smaller and smaller
- * divisions of the square, determined by drawFloorRecurse.
- * @param recurseLevel Current level of recursion, only pass 0
- * @param x1 top-left x
- * @param z1 top-left z
- * @param x2 bottom-left x
- * @param z2 bottom-left z
+ * Draw a floor by looping over the floorSize and squareSize variables
  */
-void drawSquare(int recurseLevel, float x1, float z1, float x2, float z2) {
+void drawFloor() {
+  if ( currentGroundTexture == 0 ) {
+    getTexture(1);
+    glBindTexture(GL_TEXTURE_2D, 1);
+  } else {
+    getTexture(currentGroundTexture);
+    glBindTexture(GL_TEXTURE_2D, currentGroundTexture);
+  }
 
-  if ( drawFloorRecurse != recurseLevel ) {
-    // Calculate middle points
-    float xm = (x1 + x2) / 2.0;
-    float zm = (z1 + z2) / 2.0;
+	glBegin(GL_QUADS);  
 
-    // Increment recursion level
-    int rnew = recurseLevel + 1;
+    for ( int x = -floorSize; x < floorSize; x++ ) {
+      for ( int z = -floorSize; z < floorSize; z++ ) {
+        glColor3f( 1.0, 1.0, 1.0 );
 
-    // Split into four sub-quads
-    drawSquare(rnew, x1, z1, xm, zm);
-    drawSquare(rnew, x1, zm, xm, z2);
-    drawSquare(rnew, xm, zm, x2, z2);
-    drawSquare(rnew, xm, z1, x2, zm);
+        glNormal3i( 0, 1, 0 );
+        glTexCoord2f( 1.0, 1.0 );
+        glVertex3f  ( (x+1)*squareSize, 0.0, (z+1)*squareSize );
 
-  } else {
-    // Draw square.
-    // **NOTE: Is the polygon facing in the right direction?
-    srand ( time(NULL) );
-    if ( rand() % 10 < 5 ) {
-      printf("Random don't draw\n");
-      return;
+        glNormal3i( 0, 1, 0 );
+        glTexCoord2f( 1.0, 0.0 );
+        glVertex3f  ( (x+1)*squareSize, 0.0,     z*squareSize );
+
+        glNormal3i( 0, 1, 0 );
+        glTexCoord2f( 0.0, 0.0 );
+        glVertex3f  (     x*squareSize, 0.0,     z*squareSize );
+
+        glNormal3i( 0, 1, 0 );
+        glTexCoord2f( 0.0, 1.0 );
+        glVertex3f  (     x*squareSize, 0.0, (z+1)*squareSize );
+      }
     }
-    //printf("Drawing square (%f, %f), (%f, %f), (%f, %f), (%f, %f)\n", x1, z1, x1, z2, x2, z2, x2, z1);
-    glBegin(GL_QUADS);
-      glNormal3f(0,1,0);
-      glVertex3f(x1, 0.0, z1);
-      glVertex3f(x1, 0.0, z2);
-      glVertex3f(x2, 0.0, z2);
-      glVertex3f(x2, 0.0, z1);
-    glEnd();
-  }
 
-}
+	glEnd();
 
-/**
- * Draw a floor by calling the drawSquare recursion
- */
-void drawFloor() {
-  drawSquare(0, -floorSize, -floorSize, floorSize, floorSize);
+  if ( currentGroundTexture != 0 ) {
+    glBindTexture(GL_TEXTURE_2D, 0);
+  }
 }
 
 /**
  * Draw x, z axis on floor
  */
-void drawLine() {
-    // **NOTE: fix function
-    glDisable(GL_TEXTURE_2D);
-    glDisable(GL_LIGHTING);
-    //glEnable(GL_BLEND);
-    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-    glColor3f( 0.0, 0.0, 0.0 );
-
-    glBegin(GL_LINES);
+void drawAxisLines() {
+  // **NOTE: Function does not currently draw arrow-heads
+
+  glDisable(GL_TEXTURE_2D);
+  glDisable(GL_LIGHTING);
+  glEnable(GL_BLEND);
+  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+  glEnable(GL_LINE_SMOOTH);
+  glColor3f( 0.0, 0.0, 0.0 );
+
+  float arrowLength = 1.0;
+
+  glBegin(GL_LINES);
+    // x arrow
     glVertex3i(  lineLength, 0.0, 0.0 );
     glVertex3i( -lineLength, 0.0, 0.0 );
-    glEnd();
+    
+    // x arrowheads
+    glVertex3i(  lineLength, 0.0, 0.0 );
+    glVertex3i(  lineLength - arrowLength, 0.0,  1.0 );
+
+    glVertex3i(  lineLength, 0.0, 0.0 );
+    glVertex3i(  lineLength - arrowLength, 0.0, -1.0 );
+
+    // z arrow
+    glVertex3i(  0.0, 0.0,  lineLength );
+    glVertex3i(  0.0, 0.0, -lineLength );
+
+    // z arrowheads
+    glVertex3i(  0.0, 0.0,  lineLength );
+    glVertex3i(  1.0, 0.0,  lineLength - arrowLength );
+
+    glVertex3i(  0.0, 0.0,  lineLength );
+    glVertex3i( -1.0, 0.0,  lineLength - arrowLength );
+  glEnd();
+
+  glDisable(GL_BLEND);
+  glEnable(GL_LIGHTING);
+  glEnable(GL_TEXTURE_2D);
+}
+
+int addSceneObject(int id) {
+  // **NOTE: Currently only adds the teapot
 
-    glBegin(GL_LINES);
-    glVertex3i( 0.0, 0.0,  lineLength );
-    glVertex3i( 0.0, 0.0, -lineLength );
-    glEnd();
+  curObject = nObjects;
 
-    //glDisable(GL_BLEND);
-    glEnable(GL_LIGHTING);
-    glEnable(GL_TEXTURE_2D);
+  sceneObjs[nObjects].mesh = -1; // Teapot is -1 mesh
+  sceneObjs[nObjects].texture.id = -1; // No texture
+  sceneObjs[nObjects].texture.scale = 1;
+  sceneObjs[nObjects].x = 0;
+  sceneObjs[nObjects].y = 0;
+  sceneObjs[nObjects].z = 0;
+
+  sceneObjs[nObjects].scale[0] = 1;
+  sceneObjs[nObjects].scale[1] = 1;
+  sceneObjs[nObjects].scale[2] = 1;
+
+  sceneObjs[nObjects].rotation.x = 0;
+  sceneObjs[nObjects].rotation.y = 0;
+  sceneObjs[nObjects].rotation.z = 0;
+
+  nObjects += 1; // New object in scene
+
+  return nObjects;
+}
+
+void initializeLights() {
+  glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lightGlobalModel);
+  glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
+  
+  for ( int i = 0; i < LIGHTS; i++ ) {
+
+    memcpy( lightObjs[i].position, defaultPosition, sizeof(GLfloat) * 4 );
+    memcpy( lightObjs[i].ambient, defaultAmbient, sizeof(GLfloat) * 4 );
+    memcpy( lightObjs[i].diffuse, defaultDiffuse, sizeof(GLfloat) * 4 );
+    memcpy( lightObjs[i].specular, defaultSpecular, sizeof(GLfloat) * 4 );
+    memcpy( lightObjs[i].direction, defaultDirection, sizeof(GLfloat) * 3 );
+
+    lightObjs[i].cutoff = defaultCutoff;
+    lightObjs[i].exponent = defaultExponent;
+  }
+
+}
+
+void updateLights() {
+  glDisable(GL_LIGHTING);
+
+  for ( int i = 0; i < LIGHTS; i++ ) {
+    glDisable(GL_LIGHT0 + i);
+
+    glLightfv(GL_LIGHT0 + i, GL_POSITION, lightObjs[i].position);
+    glLightfv(GL_LIGHT0 + i, GL_AMBIENT, lightObjs[i].ambient);
+    glLightfv(GL_LIGHT0 + i, GL_DIFFUSE, lightObjs[i].diffuse);
+    glLightfv(GL_LIGHT0 + i, GL_SPECULAR, lightObjs[i].specular);
+    glLightfv(GL_LIGHT0 + i, GL_SPOT_DIRECTION, lightObjs[i].direction);
+
+    glLightf(GL_LIGHT0 + i, GL_SPOT_CUTOFF, lightObjs[i].cutoff);
+    glLighti(GL_LIGHT0 + i, GL_SPOT_EXPONENT, (int)lightObjs[i].exponent );
+
+    glEnable(GL_LIGHT0 + i);
+
+    // Draw light ball for light
+    glPushMatrix();
+      glColor3f(0.0, 1.0, 1.0);
+      glTranslatef(lightObjs[i].position[0], lightObjs[i].position[1], lightObjs[i].position[2]);
+      glutSolidSphere(lightBallSize, 20, 20);;
+    glPopMatrix();
+
+  }
+
+  glEnable(GL_LIGHTING);
+}
+
+/**
+ * Sets variables to the state they are in to begin with.
+ */
+void initializeState() {
+  /* Initial light 0 position. */
+  lightObjs[0].position[0] = 4;
+  lightObjs[0].position[1] = 5;
+  lightObjs[0].position[2] = 6;
+  lightObjs[0].position[3] = 0.0;
+
+  /* Initial light 1 position. */
+  lightObjs[1].position[0] = -4;
+  lightObjs[1].position[1] = 5;
+  lightObjs[1].position[2] = -6;
+  lightObjs[1].position[3] = 0.0;
+
+  /* Initial floor texture */
+  currentGroundTexture = 5;
 }
\ No newline at end of file