I am writing a game. By tick timer should work the this slot.
void game_process::animate_cell(MainWindow* m, const std::string& s, double x,double y, size_t i, size_t j, const std::string& step)
{
painter.begin(m);
std::string ss("C:\\Users\\Vardan\\GAmes_lines\\res\\red_" + step + ".png");
ss += s;
const char* p = ss.c_str();
QImage image(p);
RECT temp = cal
culate_cell_rect(i, j);
QRectF target(x, y, image.width(), image.height());
painter.drawImage(target, image);
painter.end();
m->update(x + temp.x0, y + temp.y0, 60, 60);
}
, that's it,
QTimer * timer = new QTimer (this); connect (timer, SIGNAL (timeout ()), this, SLOT (render_cell (MainWindow * m, const std :: string & s, double x, double y, size_t i, size_t j, const std :: string & step))); timer-> start ();
But as you can see the slot more parameters than the signal, and hence signals and slots mechanism does not work. What to do? Here cod
#include <QDesktopWidget>
#include <QResizeEvent>
#include <QDebug>
#include <QTimer>
#include <QTime>
#include <phonon/MediaObject>
#include <phonon/MediaSource>
#include <phonon/AudioOutput>
#include <utility>
#include <cassert>
MainWindow::MainWindow(QWidget *parent) :
QWidget(parent)
{
QImage image("C:\\Users\\Vardan\\GAmes_lines\\res\\back_3.png");
m_width = 1000;
m_height = 800;
m_game_width = image.width();
m_game_height = image.height();
setFixedSize(m_width, m_height);
m_click_coords.first = 0;
m_click_coords.second = 0;
m_timer_tick = false;
m_timer_id = 0;
setWindowFlags( Qt::CustomizeWindowHint | Qt::WindowCloseButtonHint);
m_area_x0_coordinate = (this->width() - image.width())/2;
m_area_y0_coordinate = (this->height() - image.height())/2;
m_r = new game_process(m_area_x0_coordinate, m_area_y0_coordinate, image.width()/*+30*/, image.height()/*+30*/, 57);
m_status = false;
Phonon::MediaObject *mediaobject = new Phonon::MediaObject;
QString filename("C://Users//Vardan//GAmes_lines//music//Casino Ambiance Music.wav");
mediaobject->setCurrentSource(filename);
Phonon::AudioOutput *audio = new Phonon::AudioOutput;
Phonon::createPath(mediaobject,audio);
mediaobject->play();
QPixmap pixmap("C:\\Users\\Vardan\\GAmes_lines\\res\\background.png");
QPalette palette;
palette.setBrush(/*this->backgroundRole()*/QPalette::Background, QBrush(pixmap));
this->setPalette(palette);
}
MainWindow::MainWindow(std::string& str, QWidget *parent):
QWidget(parent)
{
}
double MainWindow::get_mouse_click_absolute_x_coordinate() const
{
return m_area_x0_coordinate;
}
double MainWindow::get_mouse_click_absolute_y_coordinate() const
{
return m_area_y0_coordinate;
}
void MainWindow::set_mouse_click_absolute_x_coordinate(double x)
{
m_area_x0_coordinate = x;
}
void MainWindow::set_mouse_click_absolute_y_coordinate(double y)
{
m_area_y0_coordinate = y;
}
void MainWindow::paintEvent(QPaintEvent *event)
{
if(m_status == false)
{
m_r->game_loop(this);
}
else
{
game_process::RECT temp = m_r->calculate_cell_rect(m_click_coords.first, m_click_coords.second);
int x = m_area_x0_coordinate + temp.x0;
int y = m_area_y0_coordinate + temp.y0;
std::pair<double, double> p;
/////////////////////////////////////////////////////////
start_timer();
//////////////////////////////////////////////////////////
for(int i = 2; i < 8; ++i)
{
char buf[sizeof(int)];
itoa(i, buf, 10);
std::string s(buf);
m_r->erase_frame(this, x, y);
while(m_timer_tick == false){}
p = m_r->draw_frame(this, m_click_coords.first, m_click_coords.second, s.c_str());
m_timer_tick = false;
}
end_timer();
m_status = false;
}
}
bool MainWindow::delay(int ms)
{
QTime dieTime = QTime::currentTime().addMSecs(ms);
while( QTime::currentTime() < dieTime )
return true;
}
void MainWindow::mousePressEvent (QMouseEvent* e)
{
qDebug() << "Local:" << e->pos().x();
qDebug() << "Local:" << e->pos().y();
std::pair<double, double> p = m_r->calculate_index_of_the_coordinates(e->pos().x(), e->pos().y(), m_width, m_height);
if(m_area_x0_coordinate <= e->pos().x() && m_area_y0_coordinate <= e->pos().y()
&& m_area_x0_coordinate + m_game_width >= e->pos().x() && m_area_y0_coordinate + m_game_height >= e->pos().y() )
{
m_status = true;
m_click_coords.first = p.first;
m_click_coords.second = p.second;
game_process::RECT coords = m_r->calculate_cell_rect(p.first, p.second);
Figure* f = m_r->detect_figure_by_index(p.first, p.second);
m_r->delete_cluster(this, f);
}
game_process::RECT r;
qDebug() << "Local:" << p.first;
qDebug() << "Local:" << p.second;
}
void MainWindow::timerEvent(QTimerEvent *event)
{
m_timer_tick = true;
}
void MainWindow::start_timer()
{
m_timer_id = startTimer(1000 / 30);
}
void MainWindow::end_timer()
{
killTimer(m_timer_id);
}
bool MainWindow::event(QEvent *e)
{
switch (e->type())
{
case QEvent::WindowActivate:
case QEvent::WindowDeactivate:
return true;
}
return QWidget::event(e);
}
I noticed that the timer does not start from paintEvent, and I need what he started with paintEvent. What to do?
I adjusted the code following your advice.
#include "mainwindow.h"
#include "game_process.h"
#include <QPixmap>
#include <QPainter>
#include <QPalette>
#include <QDesktopWidget>
#include <QResizeEvent>
#include <QDebug>
#include <QTimer>
#include <QTime>
#include <phonon/MediaObject>
#include <phonon/MediaSource>
#include <phonon/AudioOutput>
#include <utility>
#include <cassert>
MainWindow::MainWindow(QWidget *parent) :
QWidget(parent)
{
QImage image("C:\\Users\\Vardan\\GAmes_lines\\res\\back_3.png");
m_width = 1000;
m_height = 800;
m_game_width = image.width();
m_game_height = image.height();
setFixedSize(m_width, m_height);
m_click_coords.first = 0;
m_click_coords.second = 0;
m_next_cell = 0;
m_frame_count = 2;
m_timer_tick = false;
m_timer_id = 0;
m_matrix_size = 0;
m_timer_flag = false;
setWindowFlags( Qt::CustomizeWindowHint | Qt::WindowCloseButtonHint);
m_area_x0_coordinate = (this->width() - image.width())/2;
m_area_y0_coordinate = (this->height() - image.height())/2;
m_r = new game_process(m_area_x0_coordinate, m_area_y0_coordinate, image.width()/*+30*/, image.height()/*+30*/, 57);
m_status = false;
Phonon::MediaObject *mediaobject = new Phonon::MediaObject;
QString filename("C://Users//Vardan//GAmes_lines//music//Casino Ambiance Music.wav");
mediaobject->setCurrentSource(filename);
Phonon::AudioOutput *audio = new Phonon::AudioOutput;
Phonon::createPath(mediaobject,audio);
mediaobject->play();
QPixmap pixmap("C:\\Users\\Vardan\\GAmes_lines\\res\\background.png");
QPalette palette;
palette.setBrush(/*this->backgroundRole()*/QPalette::Background, QBrush(pixmap));
this->setPalette(palette);
}
MainWindow::~MainWindow()
{
}
MainWindow::MainWindow(std::string& str, QWidget *parent):
QWidget(parent)
{
}
double MainWindow::get_mouse_click_absolute_x_coordinate() const
{
return m_area_x0_coordinate;
}
double MainWindow::get_mouse_click_absolute_y_coordinate() const
{
return m_area_y0_coordinate;
}
void MainWindow::set_mouse_click_absolute_x_coordinate(double x)
{
m_area_x0_coordinate = x;
}
void MainWindow::set_mouse_click_absolute_y_coordinate(double y)
{
m_area_y0_coordinate = y;
}
void MainWindow::paintEvent(QPaintEvent *event)
{
static int ind = 0;
if(m_status == false && m_timer_tick != true)
{
m_r->game_loop(this);
}
else
{
std::pair<double, double> p;
int x = 0;
int y = 0;
static int s = m_r->get_close_map_size();
static std::vector<std::pair<int, int> > v = m_r->get_close_map_indexes();
if(m_frame_count >= 7)
{
m_frame_count = 2;
++m_next_cell;
if(m_next_cell <= v.size())
{
game_process::RECT temp = m_r->calculate_cell_rect(v[m_next_cell].second, v[m_next_cell].first);
x = m_area_x0_coordinate + temp.x0;
y = m_area_y0_coordinate + temp.y0;
m_x = x;
m_y = y;
}
}
if(m_next_cell == 0)
{
game_process::RECT temp = m_r->calculate_cell_rect(v[m_next_cell].second, v[m_next_cell].first);
x = m_area_x0_coordinate + temp.x0;
y = m_area_y0_coordinate + temp.y0;
m_x = x;
m_y = y;
}
if(m_frame_count < 7 && m_next_cell < v.size())
{
char buf[sizeof(int)];
itoa(m_frame_count, buf, 10);
std::string s(buf);
m_r->erase_frame(this, x, y);
p = m_r->draw_frame(this, v[m_next_cell].second, v[m_next_cell].first, s.c_str());
m_timer_tick = false;
c = true;
}
if(c == false && m_next_cell > v.size() - 1)
{
end_timer();
qDebug()<<"m_x = " << m_x;
qDebug()<<"m_y = " << m_y;
qDebug()<<"m_frame_count + 1 = " << m_frame_count + 1;
qDebug()<<"v.size() = " << v.size();
m_r->repaint_cells(this);
}
m_status = false;
}
}
void MainWindow::mousePressEvent (QMouseEvent* e)
{
qDebug() << "Local:" << e->pos().x();
qDebug() << "Local:" << e->pos().y();
std::pair<double, double> p = m_r->calculate_index_of_the_coordinates(e->pos().x(), e->pos().y(), m_width, m_height);
if(m_area_x0_coordinate <= e->pos().x() && m_area_y0_coordinate <= e->pos().y()
&& m_area_x0_coordinate + m_game_width >= e->pos().x() && m_area_y0_coordinate + m_game_height >= e->pos().y() )
{
start_timer();
m_status = true;
m_click_coords.first = p.first;
m_click_coords.second = p.second;
game_process::RECT coords = m_r->calculate_cell_rect(p.first, p.second);
Figure* f = m_r->detect_figure_by_index(p.first, p.second);
m_r->delete_cluster(this, f);
//this->update(m_area_x0_coordinate + coords.x0, m_area_y0_coordinate + coords.y0, 57, 57);
}
game_process::RECT r;
qDebug() << "Local:" << p.first;
qDebug() << "Local:" << p.second;
}
void MainWindow::timerEvent(QTimerEvent *event)
{
if(event->timerId() == m_timer_id)
{
m_timer_tick = true;
++m_frame_count;
if(m_x >=0 && m_y >=0)
{
qDebug()<<"m_x "<<m_x <<"m_y "<<m_y<<"time |||||| Passed";
this->update(m_x, m_y, 60, 60);
}
}
else
{
QWidget::timerEvent(event);
}
}
void MainWindow::start_timer()
{
m_timer_id = startTimer(50);
}
void MainWindow::end_timer()
{
killTimer(m_timer_id);
}
bool MainWindow::event(QEvent *e)
{
switch (e->type())
{
case QEvent::WindowActivate:
case QEvent::WindowDeactivate:
return true;
}
return QWidget::event(e);
}
Here's the code repaint_cells()
void game_process::repaint_cells(MainWindow* m)
{
Figure* f = 0;
for(int i = 0; i < 8; ++i)
{
for(int j = 0; j < 8; ++j)
{
if(m_close_list[j][i] == -1)
{
f = create_new_figure(j, i);
m_figures.push_back(f);
assert(f != 0);
draw_figure(m, f, i, j);
m_close_list[j][i] = 0;
}
}
}
}
For two days I can not understand why only one ball is drawn. Тhe remaining balls are not drawn.
timerEvent
is an event, so you need to let the event loop process it. From what I see in your source code, you are busy waiting for the timer to fire. That is not how it works. ThetimerEvent
is doing all the time scheduling for you. All you need to do is to callupdate()
intimerEvent
, which will cause updating the screen. To see an example of how this works, you can have a look at my game here, which usestimerEvent
itself. The important file for you isPexeso3D / src / game / CPexesoScene.cpp
at the very bottom. – jcxzdelay
function you are missing semicolon, which means that yourwhile
will process only on iteration (probably not what you want, but this may be just a typo). However, you should stop usingdelay
functions like this, because they heavily load CPU. Instead consider implementing some type of state machine in yourtimerEvent
or usingsingleShot QTimer
. – jcxz