#include "adpainter.h"


adpainter::adpainter(int width, int height, int adpcellsize)
{
    QString str;
    QPixmap tmpAlPixmap;
    int i=1;
    cellsize = adpcellsize;
    buff = new QPixmap(width,height);
    background = new QPixmap(width,height);
    pen = new QPen();
    brush = new QBrush();
    str.setNum(i);
    while (i != 0) {
        str.setNum(i);
        tmpAlPixmap.load("./images/Aliens/Al_00_" + str + ".png");
        qDebug() << tmpAlPixmap.isNull();
        if (!tmpAlPixmap.isNull()) {
            AlienPix.push_back(tmpAlPixmap);
            tmpAlPixmap = 0;
            i++;
        }
        else i = 0;
    }
    qDebug() << "pictures:" << AlienPix.size();
    AnimAlien = 0;
    StepAlien = 0;
}


void adpainter::clear()
{
    painter.begin(background);
    pen->setColor(QColor::fromRgb(qRgb(150,150,150)));
    painter.setPen(*pen);
    painter.fillRect(buff->rect(),QColor::fromRgb(qRgb(150,150,150)));
    painter.end();
}


void adpainter::drawgrid()
{
    int i;
    painter.begin(background);
    pen->setColor(QColor::fromRgb(qRgb(100,100,100)));
    painter.setPen(*pen);
    for (i = 0;i<buff->width()/cellsize;i++)
    {
        painter.drawLine(i*cellsize,0,i*cellsize,background->height());
    }
    for (i = 0;i<buff->height()/cellsize;i++)
    {
        painter.drawLine(0,i*cellsize,background->width(),i*cellsize);
    }
    painter.end();
}


void adpainter::drawAliens(deque<QPointF> path, FPVector * position)
{
    float tmpdx,tmpdy,arctg,tmpdx1,tmpdy1;
    //unsigned char dd[4];
    //int gg;
    arctg = 0;
    //QTransform rotated;
    painter.begin(buff);
    pen->setColor(QColor::fromRgb(qRgb(80,200,100)));
    brush->setColor(QColor::fromRgb(qRgb(230,10,10)));
    brush->setStyle(Qt::SolidPattern);
    painter.setPen(*pen);
    painter.setBrush(*brush);
    painter.drawPixmap(0,0,*background);
    for (unsigned int i = 0; i < path.size(); i++){
        painter.drawEllipse(path[i].x() * cellsize +1, path[i].y() * cellsize +1, cellsize - 2, cellsize - 2);
    }
    tmpdx = position->pnt.x() - path.at(StepAlien).x()*cellsize;
    tmpdy = position->pnt.y() - path.at(StepAlien).y()*cellsize;
    if (StepAlien + 2 < path.size()) {
        tmpdx1 = position->pnt.x() - path.at(StepAlien+2).x()*cellsize;
        tmpdy1 = position->pnt.y() - path.at(StepAlien+2).y()*cellsize;
    }
        arctg = atanf(tmpdx1/tmpdy1);
        //memcpy(&gg,&arctg,4);
        if (tmpdy1 != 0) position->angle = 180*(-arctg)/3.1415;
    if (AlienPix.size() > 0) {
        //painter.rotate((arctg/3.1415)*180);
        //rotated.rotateRadians(arctg/* + 3.1415/2*/);
        //qDebug() << "angle:" << arctg;
        //rotated.reset();
        if (qAbs(tmpdx) < 1 && qAbs(tmpdy) < 1) StepAlien++;
        else {
            if (qAbs(tmpdx) <= qAbs(tmpdy)) {
                if (tmpdy < 0) {
                    position->pnt.ry()++;
                    //position->angle = - position->angle;
                }
                else {
                    position->pnt.ry()--;
                }
            }
            if (qAbs(tmpdx) >= qAbs(tmpdy)) {
                if (tmpdx < 0) {
                    position->pnt.rx()++;
                    //position->angle = - position->angle;
                }
                else position->pnt.rx()--;
            }
        }
        //painter.save();
        painter.translate(position->pnt.x()-cellsize,position->pnt.y()-cellsize);
        //if (arctg == 0) painter.rotate(90);
        //memcpy(dd,&gg,4);
        //dd[0]=0xFF;
        qDebug() << "angle:" << position->angle;
        //qDebug() << dd[0] << dd[1] << dd[2] << dd[3];
        painter.rotate(position->angle);
        //position->pnt.setX(path.at(0).x());
        //position->pnt.setY(path.at(0).y());
        painter.drawPixmap(cellsize/2, cellsize/2, cellsize*2, cellsize*2, AlienPix.at(AnimAlien));
        AnimAlien++;
        //painter.restore();
        if (AnimAlien >= AlienPix.size()) AnimAlien = 0;
        if (StepAlien >= path.size()) StepAlien = 0;
        //qDebug() << StepAlien;
    }
    painter.end();
}


void adpainter::drawcell(QPoint pnt)
{
    painter.begin(background);
    pen->setColor(QColor::fromRgb(qRgb(0,0,0)));
    brush->setColor(QColor::fromRgb(qRgb(0,0,0)));
    brush->setStyle(Qt::SolidPattern);
    painter.setPen(*pen);
    painter.setBrush(*brush);
    painter.drawRect(pnt.x()*cellsize+1,pnt.y()*cellsize+1,cellsize - 2, cellsize - 2);
    painter.end();
}


void adpainter::clearcell(QPoint pnt)
{
    painter.begin(background);
    pen->setColor(QColor::fromRgb(qRgb(150,150,150)));
    brush->setColor(QColor::fromRgb(qRgb(150,150,150)));
    brush->setStyle(Qt::SolidPattern);
    painter.setPen(*pen);
    painter.setBrush(*brush);
    painter.drawRect(pnt.x()*cellsize+1,pnt.y()*cellsize+1,cellsize - 2, cellsize - 2);
    painter.end();
}


QPixmap * adpainter::getPixmap()
{
    return buff;
}