Pirate.cpp

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#include "Pirate.h"

#ifndef min
#define min(a,b)            (((a) < (b)) ? (a) : (b))
#endif

Pirate::Pirate(float r, GLuint displayList, PlayerObject *player, float maxSpeed):ForeignSpaceShip(r,displayList)
{
        this->player = player;
        this->maxSpeed = maxSpeed;
}

Pirate::~Pirate(void)
{
}

bool Pirate::behindPlayer()
{
    Plane plane = Plane(player->getView(), player->getPos());
    return ( plane.distance( this->getPos()) < 0);
}

void Pirate::adjust( float t )
{   
    Vector3 playerPos = player->getPos();
    Vector3 myPos = this->getPos();

    Vector3 desiredView = playerPos - myPos;
    float distance = desiredView.length();

    bool behind = this->behindPlayer();
    float playerSpeed = player->getSpeed();

    float actualSpeed = this->getSpeed();
    if (distance < 6)
    {
        if (behind) // we are chasing the player
            this->setSpeed(playerSpeed-0.005); // move slower to get out of range
                                              // (or, if playerSpeed negative, move faster backwards)
        if (!behind) // we are in front of the player
            this->setSpeed(-playerSpeed-0.005); // our speed must be vise versa

        this->setShoot(true);
    }
    if (distance >=6 && distance <= 8)
    {
        if (behind)
            this->setSpeed( playerSpeed );
        if (!behind)
            this->setSpeed( -playerSpeed );
        this->setShoot(true);
    }
    if (distance > 8 && distance <= 15)
    {
        if (behind) // we are chasing the player
            this->setSpeed(playerSpeed+0.005); // move faster to catch him
                                              // (or, if playerSpeed negative, move slower backwards)
        if (!behind) // we are in front of the player
            this->setSpeed(-playerSpeed+0.005); // our speed must be vise versa
        this->setShoot(true);
    }
    if (distance > 15 && distance <= 250)
    {
        this->setSpeed( maxSpeed );
        if (this->shipWasHitOnce())
            this->setShoot(true);
        else
            this->setShoot(false);
    }

    if (distance > 250)
    {
        if (this->shipWasHitOnce())
        {
            this->setShoot(true);
            this->setSpeed(maxSpeed);
        }
        else
        {
            this->setSpeed(0);
            this->setShoot(false);
        }       
    }

    desiredView.normalize();
    this->setView(desiredView);

}