//--------------------------------------------------------
// ^-- sets up the projection matrix and viewPort
// v-- display is the main meat of this header file
//--------------------------------------------------------
void sTree_display(void){
glClearColor(bgColor.r, bgColor.g, bgColor.b, 0.0);
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//reset the position to 0,0,0
glLoadIdentity();
gluLookAt(cam_pos.x,cam_pos.y,cam_pos.z,cam_view.x,cam_view.y,cam_view.z,0,1,0);
glPushMatrix();
glRotatef(sun_rot,0,0,1);
sun_drawSun();
glPopMatrix();
glPushMatrix();
glRotatef(moon_rot,0,0,-1);
sun_drawMoon();
glPopMatrix();
glPushMatrix();
glTranslatef(-500,-200,0);
if(G)map_drawMap(heightMapArray);
glPopMatrix();
//loop through the trees
for(tree_loop=0;tree_loop<treeCount;tree_loop++){
if(tree_loop!=treeCount+1){
//if the trunk has reached max size then make all branches there max
if(tree[tree_loop]->branches[0].maxLengthBool == 1) tree[tree_loop]->endBool =1;
glColor3f(tree[tree_loop]->treeColour.r,tree[tree_loop]->treeColour.g,tree[tree_loop]->treeColour.b);
//loop through the branches
for(n=0;n<tree[tree_loop]->branchCount+1;n++){
if(n != tree[tree_loop]->branchCount+1){
//check to see if enough time has passed, if so do algorithm, else do the drawTree
if(timeFlag){
affectingFunctions(tree[tree_loop],n);
}else{
nonAffectingFunctions(tree[tree_loop],n);
}//if timeflag
}//if(branchCOunt +1)
}//for(n)
}//if(treeCount+1)
}//for(treearray)
//reset the timeflag
timeFlag =0;
//swap the buffers to display what just got drawn.
glutSwapBuffers();
}//sTree_display(VOID)
//--------------------------------------------------------
// ^-- display is the main meat of this header file
// v-- These functions affect the tree algorithm, only called if right amount of time has passed
//--------------------------------------------------------
void affectingFunctions(TREE *tree, int br){
int error;
glPushMatrix();
glTranslatef(-500,-200,0);
//draw the tree and do all other algorithm stuff
glRotatef(treeRot,0,1,0);
sTree_treeAlgorithm(tree, br);
glPopMatrix();
if(tree->endBool){
//the trunk has grown to max size, so simulation should end
error = sTree_makeBranchesMax(tree, br);
}else{
//this checks if there are any branches and then increments the branch origY
error = sTree_moveBranchesUpTrunk(tree, br);
//ammend the dirBias of the given tree
sun_ammendBias(tree, br);
//modify intensity calculates and refreshes how much sun the tree gets
//scale is 1
sun_modifyIntensity(tree, br, 1);
//change the spawnrate of the tree
sun_modifySpawnRate(tree);
//changes the maxLength of all the branches depending on the lightintensity
//first check to see if the branch is at actual max length
if(tree->branches[0].maxLength != BRANCH_MAX_LENGTH ) sun_changeMaxLength(tree);
}//endBool
}//affectingFunctions(TREE, int)
//--------------------------------------------------------
// ^-- These functions affect the tree algorithm, only called if right amount of time has passed
// v-- These functions dont affect the tree algorithm, called if timeFlag not set
//--------------------------------------------------------
void nonAffectingFunctions(TREE *tree, int br){
glPushMatrix();
glTranslatef(-500,-200,0);
glRotatef(treeRot,0,1,0);
sTree_drawTree(tree, br);
glPopMatrix();
//increase the intensity of the tree but only by a factor of 1/3
//scale is 3
sun_modifyIntensity(tree, br, 3);
}//affectingFunctions(TREE, int)
