Point Point::operator+(const Point & point){
if (sameSpace(point)){
x = space.boundX(x + point.x);
y = space.boundY(y + point.y);
return *this;
} else {
return *this + Point(point, space);
}
}
void City::initialize(){
//create a base brick that all bricks are cloned from
LegoBrick* brick = new LegoBrick(1);
//intialize that brick first
brick->initialize();
brick->redraw = false;
//distribution of lego pieces is a normal at 0
std::default_random_engine generator;
std::normal_distribution<double> distribution(0, 800);
//set different shaders
//and load them into a array to be randomly selected
GLuint shaders[3];
shaders[0] = loadShader("legoVertex.glsl", "legoRedFragment.glsl");
shaders[1] = loadShader("legoVertex.glsl", "legoBlueFragment.glsl");
shaders[2] = loadShader("legoVertex.glsl", "legoGreenFragment.glsl");
//total number of bircks
int numBrick = 75;
for (int i = 0; i < numBrick; i++){
//clone the brick
LegoBrick* brick2 = brick->clone();
//find the x and z coordiante
int x = floor(distribution(generator));
int z = floor(distribution(generator));
brick2->pos = (glm::vec3(x, 0, z));
//randomly pick a shader
brick2->color = rand() % 3;
brick2->shaderID = shaders[brick2->color];
//50-50 chance of it facing another direction
if (rand() % 2 == 0){
brick2->ry = 90;
}
//check whether the current location already have a brick
//if there is already a brick, change the height of that brick;
bool same = false;
int index = -1;
for (int j = children.size() - 1; j >= 0; j--){
glm::vec3 childLoc = children[j]->pos;
if (sameSpace(childLoc, brick2->pos)){
//remove for now
same = true;
index = j;
break;
}
}
//if overlap remove for now
if (same){
LegoBrick* sameBrick = (LegoBrick*)children[index];
sameBrick->scale.y = sameBrick->scale.y * 1.4;
//float scaleFactor = ((sameBrick->scale.y - 6) * 2);
for (int k = 0; k < sameBrick->children.size(); k++){
((LegoBrick*)children[index])->children[k]->scale.y = (sameBrick->children[k]->scale.y)/1.4;
}
delete brick2;
continue;
}
//make the children also use the same shader
for (int k = 0; k < brick2->children.size(); k++){
brick2->children[k]->shaderID = brick2->shaderID;
}
//add birck
children.push_back(brick2);
brick2->parent = this;
}
}
