author | Wuzzy <Wuzzy2@mail.ru> |
Mon, 30 Sep 2019 15:15:28 +0200 | |
changeset 15437 | c93dfa4ab904 |
parent 14842 | ef9630519491 |
child 15894 | ebc50f21e849 |
permissions | -rw-r--r-- |
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#include "game_view.h" |
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#include <QtQuick/qquickwindow.h> |
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#include <QCursor> |
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#include <QTimer> |
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#include <QtGui/QOpenGLContext> |
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#include <QtGui/QOpenGLShaderProgram> |
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GameView::GameView(QQuickItem* parent) |
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: QQuickItem(parent), m_delta(0), m_windowChanged(true) { |
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connect(this, &QQuickItem::windowChanged, this, |
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&GameView::handleWindowChanged); |
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} |
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void GameView::tick(quint32 delta) { |
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m_delta = delta; |
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if (window()) { |
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QTimer* timer = new QTimer(this); |
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connect(timer, &QTimer::timeout, window(), &QQuickWindow::update); |
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timer->start(100); |
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// window()->update(); |
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} |
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} |
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EngineInstance* GameView::engineInstance() const { return m_engineInstance; } |
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void GameView::handleWindowChanged(QQuickWindow* win) { |
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if (win) { |
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connect(win, &QQuickWindow::beforeSynchronizing, this, &GameView::sync, |
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Qt::DirectConnection); |
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connect(win, &QQuickWindow::sceneGraphInvalidated, this, &GameView::cleanup, |
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Qt::DirectConnection); |
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win->setClearBeforeRendering(false); |
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m_windowChanged = true; |
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} |
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} |
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void GameView::cleanup() { m_renderer.reset(); } |
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void GameView::setEngineInstance(EngineInstance* engineInstance) { |
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if (m_engineInstance == engineInstance) return; |
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cleanup(); |
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m_engineInstance = engineInstance; |
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emit engineInstanceChanged(m_engineInstance); |
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} |
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void GameView::sync() { |
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if (!m_renderer && m_engineInstance) { |
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m_engineInstance->setOpenGLContext(window()->openglContext()); |
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m_renderer.reset(new GameViewRenderer()); |
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m_renderer->setEngineInstance(m_engineInstance); |
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connect(window(), &QQuickWindow::beforeRendering, m_renderer.data(), |
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&GameViewRenderer::paint, Qt::DirectConnection); |
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} |
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if (m_windowChanged || (m_viewportSize != window()->size())) { |
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m_windowChanged = false; |
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if (m_engineInstance) |
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m_engineInstance->setOpenGLContext(window()->openglContext()); |
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m_viewportSize = window()->size(); |
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m_centerPoint = QPoint(m_viewportSize.width(), m_viewportSize.height()) / 2; |
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} |
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if (m_engineInstance) { |
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QPoint mousePos = mapFromGlobal(QCursor::pos()).toPoint(); |
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m_engineInstance->moveCamera(mousePos - m_centerPoint); |
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QCursor::setPos(mapToGlobal(m_centerPoint).toPoint()); |
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} |
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if (m_renderer) m_renderer->tick(m_delta); |
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} |
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GameViewRenderer::GameViewRenderer() |
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: QObject(), m_delta(0), m_engineInstance(nullptr) {} |
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GameViewRenderer::~GameViewRenderer() {} |
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void GameViewRenderer::tick(quint32 delta) { m_delta = delta; } |
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void GameViewRenderer::setEngineInstance(EngineInstance* engineInstance) { |
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m_engineInstance = engineInstance; |
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} |
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void GameViewRenderer::paint() { |
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if (m_delta == 0) return; |
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if (m_engineInstance) { |
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m_engineInstance->advance(m_delta); |
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m_engineInstance->renderFrame(); |
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} |
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// m_window->resetOpenGLState(); |
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} |
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void GameViewRenderer::onViewportSizeChanged(QQuickWindow* window) { |
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if (m_engineInstance) |
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m_engineInstance->setOpenGLContext(window->openglContext()); |
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} |