本文整理汇总了C++中Point2d::normalize方法的典型用法代码示例。如果您正苦于以下问题：C++ Point2d::normalize方法的具体用法？C++ Point2d::normalize怎么用？C++ Point2d::normalize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Point2d的用法示例。
在下文中一共展示了Point2d::normalize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: simulate
void HeartOfFire::simulate(){
Point2d playerDirection = room->player->getGravCenter()-gravityCenter;
double playerDistance2=playerDirection.length2();
//heat wave radius change
double heatRadius=10.0+2*sin(heatWaveFrame*PI/30.0);
for(unsigned int i=1;i<heatWave.getVertexCount();i++){
Point2d ray (heatWave[i].position.x-heatWave[0].position.x,heatWave[i].position.y-heatWave[0].position.y);
ray.normalized();
ray*=heatRadius;
heatWave[i].position=sf::Vector2f(heatWave[0].position.x+ray.x,heatWave[0].position.y+ray.y);
}
if(heatWaveFrame==60)
heatWaveFrame=1;
else
heatWaveFrame++;
//heat wave effects
if(playerDistance2>heatRadius*heatRadius){//if sufficiently far away, the heat bar empties itself
if(heatBar>0)
heatBar--;
}else{//the closer the player is, the faster the bar increases
heatBar+=5*(1.0-playerDistance2/(heatRadius*heatRadius));
if(heatBar>900)//damages
room->player->damageNoTrigger(1.0,FIRE,0);
}
facingRight=playerDirection.x>0.0;
int closestProjectile=-1;
double smallestLength2=16.0;
for(unsigned int i=0;i<room->projectiles.size();i++){//what is the closest incoming projectile less than 4.0 away ?
Point2d projectileDirection = room->projectiles[i]->getGravCenter()-gravityCenter;
if((projectileDirection.length2()<smallestLength2)&&(hitboxes.front()->intersectRay(room->projectiles[i]->getGravCenter(),room->projectiles[i]->getV()))){
closestProjectile=i;
smallestLength2=(gravityCenter-room->projectiles[i]->getGravCenter()).length2();
}
}
Point2d closestProjectileDirection;
if(closestProjectile!=-1)
closestProjectileDirection=room->projectiles[closestProjectile]->getGravCenter()-gravityCenter;
if((heatSalvationCooldown==0)&&(dodgeCooldown==0)){//heat salvation summoning !
//TODO : spirits pop
heatSalvationCooldown=1800;
}else if((fireBallCooldown==0)&&(dodgeCooldown==0)){//fireball !
Point2d shotDirection;
Point2d shotOrigin=(facingRight)? gravityCenter+Point2d(0.7,0.1) : gravityCenter-Point2d(0.7,0.1);
//if a projectile is incoming, shoot at it !
if((closestProjectile!=-1)&&((facingRight&&(closestProjectileDirection.x>0.0))||(!facingRight&&(closestProjectileDirection.x<0.0))))
shotDirection = closestProjectileDirection;//direction of the projectile
else
shotDirection=playerDirection;
shotDirection+=(facingRight)? Point2d(0.7,0.1) : Point2d(-0.7,0.1);
shotDirection.normalized();
std::vector<std::pair<int,int> > dmg;
dmg.push_back(std::make_pair(3,FIRE));
room->projectiles.push_back(new HeartFireBall(shotOrigin,shotDirection*10,room->player));//shoot !
fireBallCooldown=45+rand()%31;//random cooldown
}else if(onGround){
if(closestProjectile!=-1){
if(closestProjectileDirection.normalize().y<-std::cos(PI/3.0)){//a projectile is coming from above, dodge right or left
if(dodgeCooldown==0){
if(closestProjectileDirection.x>0.0){
force.x-=4000.0;
facingRight=false;
}else{
force.x+=4000.0;
facingRight=true;
}
dodgeCooldown=20;
}
}else{//a projectile is coming from right or left, so jump !
force.y-=5000.0;
}
}else{
force.x+=(facingRight)? 5.0 : -5.0;
}
}
if(fireBallCooldown>0)
fireBallCooldown--;
if(heatSalvationCooldown>0)
heatSalvationCooldown--;
if(dodgeCooldown>0)
dodgeCooldown--;
Character::simulate();
onGround=NULL;//reinitialize onGround
}