PlanetFleet/missile.cpp

#include <util.h>
#include <model.h>

#include "missile.h"

using namespace vb01;

namespace battleship{
    Missile::Missile(Unit *unit, Node *node, Vector3 *target, Vector3 pos, Vector3 dir, Vector3 left, Vector3 up, int id, int weaponTypeId, int weaponId) :
        Projectile(unit, node, pos, dir, left, up, id, weaponTypeId, weaponId) {
        this->target = target;
        this->type = (MissileType)weaponId;
        this->initTime = getTime();
    }
    
    void Missile::update() {
        Projectile::update();
        pos = pos + dirVec * speed;
        node->setPosition(pos);
        float angle = dirVec.getAngleBetween(*target - pos);
        Vector3 axis = dirVec.cross(*target - pos).norm();

        if(rotationSpeed / 180 * PI < angle){
            Quaternion rotQuat = Quaternion(rotationSpeed / 180 * PI, axis);
            orientProjectile(rotQuat * dirVec);
        }

        if(!exploded && getTime() - initTime > selfDistructTime)
            Projectile::explode(nullptr);
    }
}