Tree::Branch* Tree::branchFractal(GLfloat cur_angle, GLfloat prev_angle, Vertex2d initPoint, GLfloat height, unsigned char depth, Floor* floor, bool behindLog) {
Vertex2d finalPoint = Vertex2d(
initPoint.x + height * cosf(prev_angle + cur_angle + M_PI_2),
initPoint.y + height * sinf(prev_angle + cur_angle + M_PI_2)
);
// Crea un ramo vuoto, direzionato
Tree::Branch* fractal = new Branch();
fractal->angle = cur_angle;
// Scegli un numero di foglie e creale
int foglie = (depth > 4) ? 0 : rand() % (depth + 20) + 1;
for (int i=0; i<foglie; i++) {
GLfloat perc = std::max(rand() % 100, rand() % 100) / 100.0;
Vertex2d position(
initPoint.x * (1 - perc) + finalPoint.x * perc,
initPoint.y * (1 - perc) + finalPoint.y * perc
);
Vertex2d fallPoint(
position.x,
(float) (((behindLog) ? rand() % (int)(floor->height / 4) + floor->height / 4: rand() % (int)floor->height / 2))
);
position.x += rand() % 20 - 10.0f;
GLfloat size = 5.0f;
GLfloat leaf_angle = (cur_angle + prev_angle) * 180 / M_PI + rand() % 90 - 45.0f;
RGBColor color((rand() % 4) / 10.0f, 1.0f - (rand() % 3) / 10.0f, (rand() % 3) / 10.0f, 1);
int age = rand() % 256;
fractal->leaves.push_back(Leaf(position, fallPoint, size, leaf_angle, color, age, behindLog));
}
// Scegli un numero di fiori e frutti e creali
int flowers = (depth > 4) ? 0 : rand() % 4;
for (int i=0; i<flowers; i++) {
GLfloat perc = std::max(rand() % 100, rand() % 100) / 100.0;
Vertex2d position(
initPoint.x * (1 - perc) + finalPoint.x * perc,
initPoint.y * (1 - perc) + finalPoint.y * perc
);
Vertex2d fallPointFruit(
position.x,
(float) (rand() % (int)(floor->height / 2))
);
GLfloat size = rand() % 3 + 2;
GLfloat sizeFruit = 8;
RGBColor centerColor(0.96, 0.76, 0.1, 1);
RGBColor petalColor(0.9, 0.1, 0.6, 1);
RGBColor fruitColor(1 + ((rand()%10 - 5.0f) / 100.0f), 0.6f + ((rand()%10 - 5.0f) / 100.0f), 0, 1);
int age = rand() % 256;
fractal->flowers.push_back(Flower(position, size, centerColor, petalColor));
fractal->fruits.push_back(Fruit(position, fallPointFruit, sizeFruit, fruitColor, age));
}
// Se non ci sono rami "figli" ho finito
if (depth == 0) {
return fractal;
}
// Scegli le direzioni per i figli e creali
int angles[] = {0, 45, 315};
std::random_shuffle(angles, angles+3);
int children = (depth > 2) ? 3 : rand() % 2 + 1;
for (int i=0; i<children; i++) {
GLfloat new_angle = (angles[i] + rand() % 20 - 10) / 180.0 * M_PI;
fractal->child[i] = branchFractal(new_angle, cur_angle + prev_angle, finalPoint, height * 0.7, depth - 1, floor, behindLog);
}
return fractal;
}
void FruitManager::add(int x, int y)
{
this->fruit.push_back(Fruit(x, y));
}
