本文整理汇总了C++中MyVector::changeSize方法的典型用法代码示例。如果您正苦于以下问题：C++ MyVector::changeSize方法的具体用法？C++ MyVector::changeSize怎么用？C++ MyVector::changeSize使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MyVector的用法示例。
在下文中一共展示了MyVector::changeSize方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: processColision
void MovableObject::processColision(Object *o){
MovableObject* mo;
MyVector *u1, *u2, *axis;
MyVector *u1n, *u1t, *u2n;
double alfa1,alfa2,beta1;
double m1,m2;
double v1n_s,v1_s,k,fi,new_x,new_y,diff;
if(o->compute_hit){
m1 = mass;
m2 = o->mass;
if((this->k >= 0) && (o->k >= 0))
k = 1 - abs(o->k - this->k);
else
k = (this->k < o->k) ? this->k + 1 - o->k : o->k + 1 - this->k ;
if (o->movable){
mo = (MovableObject*) o;
u2 = mo->getVector();
}else{
mo = NULL;
u2 = new MyVector(0,0.01);
}
u1 = (MyVector*) malloc(sizeof(MyVector));
(*u1) = result_vector;
axis = new MyVector(o->getX() - x, o->getY() - y);
alfa1 = u1->getAngle((*axis));
alfa2 = u2->getAngle((*axis));
u1n = new MyVector((*u1)[0],(*u1)[1]);
u1t = new MyVector((*u1)[0],(*u1)[1]);
u2n = new MyVector((*u2)[0],(*u2)[1]);
(*u1n) *= cos(alfa1);
(*u1t) *= sin(alfa1);
(*u2n) *= cos(alfa2);
v1n_s = (m1 * u1n->getSize() + m2 * u2n->getSize() - k * m2 * (u1n->getSize() - u2n->getSize())) / (m1 + m2);
v1_s = sqrt(pow(v1n_s,2) + pow(u1t->getSize(),2)); // u1t == v1t
beta1 = atan(u1t->getSize() / v1n_s);
MyVector y_axis(0,1);
fi = axis->getAngle(y_axis);
diff = x - o->getX();
if((cos(fi) >= 0) && (diff > 0)){
new_y = y - cos(beta1) * v1_s;
new_x = x - sin(beta1) * v1_s;
}else if((cos(fi) >= 0) && (diff < 0)){
new_y = y - cos(beta1) * v1_s;
new_x = x + sin(beta1) * v1_s;
}else if((cos(fi) <= 0) && (diff < 0)){
new_y = y + cos(beta1) * v1_s;
new_x = x + sin(beta1) * v1_s;
}else if((cos(fi) <= 0) && (diff > 0)){
new_y = y + cos(beta1) * v1_s;
new_x = x - sin(beta1) * v1_s;
}
if((o->getX() - x >= 0) && (o->getY() - y >= 0))
fi *= -1;
else if((o->getX() - x < 0) && (o->getY() - y < 0))
fi *= -1;
if(!fi) fi = 0.001;
MyVector w(new_x - x,new_y - y);
w.rotate(fi);
result_vector = w;
}else{
Mask *m = o->getMask();
int *col = m->collision_pixel;
MyVector *v, *w;
double min_dist = 2000;
for(int i = 0; i < 4; i++){
v = m->sides[i];
MyVector norm((*v)[1],(*v)[0] * -1);
double c = -norm[0] * (v->getStartX()) - norm[1] * v->getStartY();
double dist = abs(norm[0] * col[0] + norm[1] * col[1] + c) / norm.getSize();
if(dist < min_dist){
min_dist = dist;
w = v;
}
}
MyVector x_axis(1,0);
double alfa = x_axis.getAngle(*w);
MyVector *u = new MyVector(0,1);
u->rotate(3.141592 / 2 - alfa);
double f = 4;
u->changeSize(3 * ACC_CONST * sin(alfa) * f);
MyVector *u_n = new MyVector((*u)[1],(*u)[0]);
u_n->changeSize(3 * ACC_CONST * cos(alfa));
Node *first = (Node*)acceleration_list.getFirst();
if(acceleration_list.getCount() == 1){
acceleration_list.addNode(u,1);
acceleration_list.addNode(u_n,1);
}else{
first = first->next;
if(first)
(*(MyVector*)(first->data)) = (*u_n);
first = first->next;
if(first)
//.........这里部分代码省略.........