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#include "Tower.h"

#include <QPixmap>

#include <QVector>

#include <QPointF>

#include <QPolygonF>

#include "Bullet.h"

#include <QPointF>

#include <QLineF>

#include "Game.h"

#include <QTimer>

#include <QGraphicsRectItem>

extern Game * game;

Tower::Tower(QGraphicsItem *parent):QObject(), QGraphicsPixmapItem(parent){

// set the graphics

setPixmap(QPixmap(":/images/tower.png"));

// create points vector

QVector<QPointF> points;

points << QPoint(1,0) << QPoint(2,0) << QPoint(3,1) << QPoint(3,2) << QPoint(2,3)

<< QPoint(1,3) << QPoint(0,2) << QPoint(0,1);

// scale points

int SCALE_FACTOR = 75;

for (size_t i = 0, n = points.size(); i < n; i++){

points[i] *= SCALE_FACTOR;

}

// create the QGraphicsPolygonItem

attack_area = new QGraphicsPolygonItem(QPolygonF(points),this);

// move the polygon

QPointF poly_center(1.5,1.5);

poly_center *= SCALE_FACTOR;

poly_center = mapToScene(poly_center);;

QPointF tower_center(x()+44,y()+44);

QLineF ln(poly_center,tower_center);

attack_area->setPos(x()+ln.dx(),y()+ln.dy());

// connect a timer to attack_target

QTimer * timer = new QTimer();

connect(timer,SIGNAL(timeout()),this,SLOT(attack_target()));

timer->start(1000);

// set attack_dest

attack_dest = QPointF(800,0);

}

void Tower::attack_target(){

Bullet * bullet = new Bullet();

bullet->setPos(x()+44,y()+44);

QLineF ln(QPointF(x()+44,y()+44),attack_dest);

int angle = -1 * ln.angle();

bullet->setRotation(angle);

game->scene->addItem(bullet);

}

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