299 lines
6.2 KiB
C++
299 lines
6.2 KiB
C++
#include "alien.h"
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#include <cmath>
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Alien::Alien(games *parent, float alienspeed)
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{
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game = parent;
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Speed = alienspeed;
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TmpCells = new int*[game->size.width()];
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for (int i = 0; i < game->size.width(); i++)
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TmpCells[i] = new int[game->size.height()];
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position = game->start*game->cellsize;
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path.clear();
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PicIndex = 0;
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RecreatePath();
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}
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bool Alien::RecreatePath()
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{
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for (int i = 0; i < game->size.width(); i++)
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{
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for (int j = 0; j < game->size.height(); j++)
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{
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if (game->Cells[i][j] < 0 ) TmpCells[i][j] = -1;
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else TmpCells[i][j] = 0;
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}
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}
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QPointF tp;
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QPoint start;
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QVector<QPoint> srcPath;
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QVector<QPointF> tmpPath;
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PathIndex = 1;
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start.setX(qRound(position.x()/(float)game->cellsize));
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start.setY(qRound(position.y()/(float)game->cellsize));
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srcPath = InvWaveTrace(game->finish,WaveTrace(start,game->finish));
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for (int i=0; i<srcPath.size();i++)
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{
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game->Cells[srcPath.at(i).x()][srcPath.at(i).y()] = 1;
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tmpPath.push_back(QPointF(srcPath.at(i)));
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}
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srcPath.clear();
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//qDebug() << tmpPath.size();
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if (!tmpPath.isEmpty())
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{
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for (int j=0; j<4; j++)
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{
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path.clear();
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tp = tmpPath.at(0);
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path.push_back(tp);
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for (int i = 0; i < tmpPath.size() - 1; i++)
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{
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//if (j > 1) path.push_back(tmpPath[i]);
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tp.setX((tmpPath.at(i).x() + tmpPath.at(i + 1).x()) / 2.0);
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tp.setY((tmpPath.at(i).y() + tmpPath.at(i + 1).y()) / 2.0);
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path.push_back(tp);
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}
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tp = tmpPath.at(tmpPath.size() - 1);
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path.push_back(tp);
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tmpPath = path;
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}
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tmpPath.clear();
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if (path.size() > 10)
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{
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path.remove(1);
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path.remove(1);
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path.remove(path.size()-2);
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path.remove(path.size()-2);
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}
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return true;
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}
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return false;
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}
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void Alien::update()
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{
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float tmpdx,tmpdy,angl,arctg = 0;
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tmpdx = position.x() - path.at(PathIndex).x()*game->cellsize;
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tmpdy = position.y() - path.at(PathIndex).y()*game->cellsize;
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while (std::sqrt(tmpdx*tmpdx +tmpdy*tmpdy) < 2*Speed*game->cellsize)
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{
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PathIndex++;
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if (PathIndex >= path.size())
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{
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PathIndex = 0;
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position = game->start*game->cellsize;
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}
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tmpdx = position.x() - path.at(PathIndex).x()*game->cellsize;
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tmpdy = position.y() - path.at(PathIndex).y()*game->cellsize;
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//qDebug() << "next";
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}
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arctg = std::atan(tmpdx/tmpdy);
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if (tmpdy < 0) arctg=arctg+3.1416f;
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angl = 180.0f*(-arctg)/3.1416f;
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/*if (PathIndex > 1)
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{
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if ((Position.angle-angl < -5 || Position.angle-angl > 5) && angl < 175 && angl > -175)
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{
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if (angl > Position.angle) Position.angle += 5;
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else Position.angle -= 5;
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}
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else Position.angle = angl;
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}
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else*/ angle = angl;
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//qDebug() << "[" << PathIndex << ";" << PicIndex << "]" << "angle:" << Position.angle << "arctg:" << arctg << "Pos:" << Position.pnt;
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position.setX(position.x()
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-Speed*(float)game->cellsize*std::sin(arctg));
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position.setY(position.y()
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-Speed*(float)game->cellsize*std::cos(arctg));
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PicIndex++;
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}
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int Alien::WaveTrace(QPoint start, QPoint finish)
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{
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bool stop = false;
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int step = 2;
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QPoint cp, tp;
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QRect fr(0, 0, game->size.width(), game->size.height());
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QVector<QPoint> tmpp, curp;
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cp = start;
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curp.push_back(cp);
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TmpCells[cp.x()][cp.y()] = 1;
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//qDebug() << "trace";
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while (!stop) {
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tmpp = curp;
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curp.clear();
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stop = true;
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for (int i = 0; i < tmpp.size(); i++) {
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cp = tmpp.at(i);
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if (cp == finish) {
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TmpCells[cp.x()][cp.y()] = step;
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//qDebug() << "trace done!";
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return step;
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}
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tp.setX(cp.x() - 1);
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tp.setY(cp.y());
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if (fr.contains(tp) && TmpCells[tp.x()][tp.y()] == 0) {
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TmpCells[tp.x()][tp.y()] = step;
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curp.push_back(tp);
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stop = false;
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}
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tp.setX(cp.x() + 1);
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if (fr.contains(tp) && TmpCells[tp.x()][tp.y()] == 0) {
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TmpCells[tp.x()][tp.y()] = step;
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curp.push_back(tp);
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stop = false;
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}
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tp.setX(cp.x());
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tp.setY(cp.y() - 1);
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if (fr.contains(tp) && TmpCells[tp.x()][tp.y()] == 0) {
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TmpCells[tp.x()][tp.y()] = step;
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curp.push_back(tp);
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stop = false;
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}
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tp.setY(cp.y() + 1);
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if (fr.contains(tp) && TmpCells[tp.x()][tp.y()] == 0) {
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TmpCells[tp.x()][tp.y()] = step;
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curp.push_back(tp);
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stop = false;
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}
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}
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step++;
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}
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//qDebug() << "trace false";
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return -1;
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}
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QVector<QPoint> Alien::InvWaveTrace(QPoint finish, int cnt)
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{
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QPoint wp, Ppnt;
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QVector<QPoint> alpath;
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if (cnt < 2) return alpath;
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int Ind, c, xpp, ypp, xnn, ynn;
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unsigned char chk;
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Ppnt = wp = finish;
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xnn=0;
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xpp=0;
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ynn=0;
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ypp=0;
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cnt--;
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alpath.push_front(Ppnt);
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while (cnt > 1)
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{
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cnt--;
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chk = 0;
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Ind = 0;
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c = 0;
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if (wp.x() - 1 >= 0 && TmpCells[wp.x()-1][wp.y()] == cnt)
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{
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chk = chk | 0x01;
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c++;
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}
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if (wp.x() + 1 < game->size.width() && TmpCells[wp.x()+1][wp.y()] == cnt)
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{
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chk = chk | 0x02;
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c++;
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}
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if (wp.y() - 1 >= 0 && TmpCells[wp.x()][wp.y()-1] == cnt)
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{
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chk = chk | 0x04;
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c++;
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}
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if (wp.y() + 1 < game->size.height() && TmpCells[wp.x()][wp.y()+1] == cnt)
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{
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chk = chk | 0x08;
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c++;
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}
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if (c == 0 || chk == 0) qDebug() << "ERROR!!!";
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if (c > 1)
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{
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if ((chk & 0x01)==0x01 && (chk & 0x04)==0x04)
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{
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if (xnn <= ynn && Ind == 0){
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wp.rx()--;
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xnn++;
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if (xnn == ynn) xnn++;
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Ind = 1;
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} else if (Ind == 0) {
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wp.ry()--;
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ynn++;
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ynn++;
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Ind = 1;
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}
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}
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if ((chk & 0x02)==0x02 && (chk & 0x04)==0x04)
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{
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if (xpp <= ynn && Ind == 0){
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wp.rx()++;
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xpp++;
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if (xpp == ynn) xpp++;
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Ind = 1;
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} else if (Ind == 0) {
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wp.ry()--;
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ynn++;
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ynn++;
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Ind = 1;
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}
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}
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if ((chk & 0x01)==0x01 && (chk & 0x08)==0x08)
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{
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if (xnn <= ypp && Ind == 0){
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wp.rx()--;
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xnn++;
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if (xnn == ypp) xnn++;
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Ind = 1;
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} else if (Ind == 0) {
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wp.ry()++;
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ypp++;
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ypp++;
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Ind = 1;
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}
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}
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if ((chk & 0x02)==0x02 && (chk & 0x08)==0x08)
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{
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if (xpp <= ypp && Ind == 0){
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wp.rx()++;
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xpp++;
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if (xpp == ypp) xpp++;
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Ind = 1;
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} else if (Ind == 0) {
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wp.ry()++;
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ypp++;
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ypp++;
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Ind = 1;
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}
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}
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}
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if (c == 1 || Ind == 0)
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{
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xnn=0;
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xpp=0;
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ynn=0;
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ypp=0;
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if ((chk & 0x01)==0x01) {
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wp.rx()--;
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xnn++;
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}
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else if ((chk & 0x02)==0x02) {
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wp.rx()++;
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xpp++;
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}
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else if ((chk & 0x04)==0x04) {
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wp.ry()--;
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ynn++;
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}
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else if ((chk & 0x08)==0x08) {
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wp.ry()++;
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ypp++;
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}
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}
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Ppnt = wp;
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alpath.push_front(Ppnt);
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}
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return alpath;
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}
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