78 lines
1.4 KiB
C++
78 lines
1.4 KiB
C++
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#include "Screen.hpp"
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#include <time.h>
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#include <QPainter>
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#include <QPaintEvent>
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#include <QMouseEvent>
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#include <QTimer>
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#include <QtMath>
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Screen::Screen(QWidget* parent) :
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QOpenGLWidget(parent)
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{
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srand(time(NULL));
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background = QBrush(Qt::black);
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renderTimer = new QTimer(this);
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connect(
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renderTimer, &QTimer::timeout,
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this, &Screen::Render
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);
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renderTimer->start(1000.f / 60.0f);
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}
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void Screen::mouseMoveEvent(QMouseEvent* event)
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{
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if (mouseDown)
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{
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Planet* planet = planets.back();
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QPointF distance = event->localPos() - mouseClickPos;
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planet->Resize(qSqrt(distance.x()*distance.x() + distance.y() *distance.y()));
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}
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}
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void Screen::mousePressEvent(QMouseEvent* event)
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{
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if (event->button() == Qt::MouseButton::LeftButton)
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{
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planets.push_back(new Planet(event->localPos(), 0,
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QColor(rand() % 256, rand() % 256, rand() % 256)
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));
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mouseClickPos = event->localPos();
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mouseDown = true;
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}
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if (event->button() == Qt::MouseButton::RightButton)
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{
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if (mouseDown)
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{
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planets.pop_back();
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mouseDown = false;
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}
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}
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}
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void Screen::mouseReleaseEvent(QMouseEvent* event)
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{
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if (event->button() == Qt::MouseButton::LeftButton)
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mouseDown = false;
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}
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void Screen::Render()
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{
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update();
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}
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void Screen::paintEvent(QPaintEvent* event)
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{
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QPainter painter;
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painter.begin(this);
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painter.fillRect(rect(), background);
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for (Planet* planet : planets)
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planet->Draw(&painter);
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painter.end();
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}
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