X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=helper.c;h=cb4278dcca7ceb0e4d1dc88e816af63868e72618;hp=20ce8b5a4fcb30d71cc069e9ff8376070339a2c8;hb=98e1aa8665249d427fee1bedceec646bd16c35b6;hpb=cf95a93549b83c6bddf0268f4ccb91c8854c8f2d

diff --git a/helper.c b/helper.c
index 20ce8b5..cb4278d 100644
--- a/helper.c
+++ b/helper.c
@@ -207,100 +207,181 @@ 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) {
-/*
-  if ( drawFloorRecurse != recurseLevel ) {
-    // Calculate middle points
-    float xm = (x1 + x2) / 2.0;
-    float zm = (z1 + z2) / 2.0;
-
-    // Increment recursion level
-    int rnew = recurseLevel + 1;
-
-    // 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);
-
+void drawFloor() {
+  if ( currentGroundTexture == 0 ) {
+    getTexture(1);
+    glBindTexture(GL_TEXTURE_2D, 1);
   } else {
-    // Draw square.
-    // **NOTE: Is the polygon facing in the right direction?
-
-    float xm = (x1 + x2) / 2.0;
-    drawSquare(recurseLevel, )
-
-    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();
-  }*/
-
- unsigned int GridSizeX = 100;
-	unsigned int GridSizeY = 100;
-	unsigned int SizeX = 2;
-	unsigned int SizeY = 2;
+    getTexture(currentGroundTexture);
+    glBindTexture(GL_TEXTURE_2D, currentGroundTexture);
+  }
 
-  
-	for (unsigned int x =0;x<GridSizeX;++x)
-		for (unsigned int y =0;y<GridSizeY;++y)
-		{
-			if ((x+y)%2) //modulo 2
-				glColor3f(1.0f,1.0f,1.0f); //white
-			else
-				glColor3f(0.0f,0.0f,0.0f); //black
-glBegin(GL_QUADS);
-			
-			glVertex3f((x+1)*SizeX,0.0, (y+1)*SizeY);
-			glVertex3f(    x*SizeX,0.0, (y+1)*SizeY);
-      glVertex3f(    x*SizeX,0.0,     y*SizeY);
-			glVertex3f((x+1)*SizeX,0.0,     y*SizeY);
-glEnd();
-		}
-	
+	glBegin(GL_QUADS);  
 
-}
+    for ( int x = -floorSize; x < floorSize; x++ ) {
+      for ( int z = -floorSize; z < floorSize; z++ ) {
+        glColor3f( 1.0, 1.0, 1.0 );
 
-/**
- * Draw a floor by calling the drawSquare recursion
- */
-void drawFloor() {
-  drawSquare(0, -floorSize, -floorSize, floorSize, floorSize);
+        glNormal3i( 1, 1, 0 );
+        glTexCoord2f( 1.0, 1.0 );
+        glVertex3f  ( (x+1)*squareSize, 0.0, (z+1)*squareSize );
+
+        glNormal3i( 1, 1, 0 );
+        glTexCoord2f( 1.0, 0.0 );
+        glVertex3f  ( (x+1)*squareSize, 0.0,     z*squareSize );
+
+        glNormal3i( 1, 1, 0 );
+        glTexCoord2f( 0.0, 0.0 );
+        glVertex3f  (     x*squareSize, 0.0,     z*squareSize );
+
+        glNormal3i( 1, 1, 0 );
+        glTexCoord2f( 0.0, 1.0 );
+        glVertex3f  (     x*squareSize, 0.0, (z+1)*squareSize );
+      }
+    }
+
+	glEnd();
+
+  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);
+}
 
-    glBegin(GL_LINES);
-    glVertex3i( 0.0, 0.0,  lineLength );
-    glVertex3i( 0.0, 0.0, -lineLength );
-    glEnd();
+int addSceneObject(int id) {
+  // **NOTE: Currently only adds the teapot
 
-    //glDisable(GL_BLEND);
-    glEnable(GL_LIGHTING);
-    glEnable(GL_TEXTURE_2D);
+  curObject = nObjects;
+
+  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,  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 */
+  // **NOTE: Commented out while testing lighting
+  //currentGroundTexture = 5;
 }
\ No newline at end of file