allow to inspect balancing arena
This commit is contained in:
321
src/balancing/ArenaView.cpp
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321
src/balancing/ArenaView.cpp
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#include "ArenaView.h"
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#include <algorithm>
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#include <cmath>
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#include <optional>
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#include <QPainter>
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#include <QPoint>
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#include "ArenaSimulation.h"
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#include "Building.h"
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#include "BuildingSystem.h"
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#include "Scrap.h"
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#include "ScrapSystem.h"
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#include "Ship.h"
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#include "ShipSystem.h"
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namespace
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{
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ShipRole shipRole(const Ship& ship)
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{
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if (ship.isEnemy) { return ShipRole::Enemy; }
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if (ship.cargo.has_value()) { return ShipRole::Salvage; }
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if (ship.repairTool.has_value()) { return ShipRole::Repair; }
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return ShipRole::PlayerCombat;
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}
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} // namespace
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ArenaView::ArenaView(ArenaSimulation* sim, const VisualsConfig* visuals,
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QWidget* parent)
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: QOpenGLWidget(parent)
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, m_sim(sim)
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, m_visuals(visuals)
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, m_wallMs(0)
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, m_gameSpeedMultiplier(1.0)
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, m_prevNonZeroSpeed(1.0)
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, m_rng(std::random_device{}())
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, m_finishedEmitted(false)
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{
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setFocusPolicy(Qt::StrongFocus);
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m_renderTimer = new QTimer(this);
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m_renderTimer->setInterval(16);
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connect(m_renderTimer, &QTimer::timeout, this, &ArenaView::onFrame);
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m_renderTimer->start();
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m_frameTimer.start();
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}
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void ArenaView::setGameSpeed(double multiplier)
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{
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if (multiplier > 0.001)
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{
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m_prevNonZeroSpeed = multiplier;
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}
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m_gameSpeedMultiplier = multiplier;
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emit speedChanged(multiplier);
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}
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double ArenaView::gameSpeed() const
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{
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return m_gameSpeedMultiplier;
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}
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void ArenaView::togglePause()
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{
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if (m_gameSpeedMultiplier < 0.001)
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{
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setGameSpeed(m_prevNonZeroSpeed);
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}
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else
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{
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setGameSpeed(0.0);
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}
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}
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void ArenaView::onFrame()
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{
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const qint64 elapsed = m_frameTimer.restart();
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m_wallMs += elapsed;
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{
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const int ticks = m_tickDriver.advance(
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static_cast<double>(elapsed), m_gameSpeedMultiplier);
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for (int i = 0; i < ticks; ++i)
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{
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m_sim->tickOnce();
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}
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}
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{
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const std::vector<FireEvent> fires = m_sim->drainFireEvents();
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for (const FireEvent& fe : fires)
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{
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float maxRadius = 0.125f;
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const Building* tBld = m_sim->buildings().findBuilding(fe.target);
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if (tBld)
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{
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const int shorter = std::min(tBld->footprint.width(),
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tBld->footprint.height());
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maxRadius = shorter / 2.0f;
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}
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std::uniform_real_distribution<float> angleDist(0.0f, 6.28318530f);
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std::uniform_real_distribution<float> radiusDist(0.0f, maxRadius);
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const float angle = angleDist(m_rng);
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const float radius = radiusDist(m_rng);
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ActiveBeam beam;
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beam.event = fe;
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beam.emittedWallMs = m_wallMs;
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beam.targetOffset = QVector2D(radius * std::cos(angle),
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radius * std::sin(angle));
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m_activeBeams.push_back(beam);
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}
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}
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{
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std::vector<ActiveBeam> live;
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for (const ActiveBeam& b : m_activeBeams)
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{
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if (m_wallMs - b.emittedWallMs < kBeamLifetimeMs)
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{
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live.push_back(b);
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}
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}
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m_activeBeams = std::move(live);
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}
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if (m_sim->isFinished() && !m_finishedEmitted)
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{
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m_finishedEmitted = true;
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emit finished();
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}
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update();
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}
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void ArenaView::paintGL()
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{
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing, false);
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drawTiles(painter);
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drawBuildings(painter);
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drawScrap(painter);
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drawShips(painter);
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drawBeams(painter);
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}
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// ---------------------------------------------------------------------------
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// Coordinate helpers
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// ---------------------------------------------------------------------------
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float ArenaView::tilePx() const
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{
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const ArenaConfig& ac = m_sim->arenaConfig();
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const int totalWidth = ac.playerBufferWidth
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+ ac.contestZoneWidth
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+ ac.enemyBufferWidth;
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const int totalHeight = ac.heightTiles;
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if (totalWidth <= 0 || totalHeight <= 0) { return 1.0f; }
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const float pxPerTileH = static_cast<float>(height()) / static_cast<float>(totalHeight);
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const float pxPerTileW = static_cast<float>(width()) / static_cast<float>(totalWidth);
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return std::min(pxPerTileH, pxPerTileW);
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}
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QPointF ArenaView::worldToWidget(QVector2D worldPos) const
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{
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return QPointF(
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static_cast<qreal>(worldPos.x() * tilePx()),
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static_cast<qreal>(worldPos.y() * tilePx()));
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}
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QPointF ArenaView::tileToWidget(QPoint tile) const
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{
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return worldToWidget(QVector2D(static_cast<float>(tile.x()),
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static_cast<float>(tile.y())));
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}
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QRectF ArenaView::tileRect(QPoint tile) const
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{
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const QPointF tl = tileToWidget(tile);
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return QRectF(tl.x(), tl.y(),
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static_cast<qreal>(tilePx()), static_cast<qreal>(tilePx()));
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}
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std::optional<QVector2D> ArenaView::entityPosition(EntityId id) const
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{
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for (const Ship& ship : m_sim->ships().allShips())
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{
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if (ship.id == id)
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{
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return ship.position;
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}
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}
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const Building* bldg = m_sim->buildings().findBuilding(id);
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if (bldg)
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{
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return QVector2D(
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bldg->anchor.x() + bldg->footprint.width() * 0.5f,
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bldg->anchor.y() + bldg->footprint.height() * 0.5f);
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}
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return std::nullopt;
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}
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// ---------------------------------------------------------------------------
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// Rendering
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// ---------------------------------------------------------------------------
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void ArenaView::drawTiles(QPainter& painter)
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{
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const ArenaConfig& ac = m_sim->arenaConfig();
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const int totalWidth = ac.playerBufferWidth
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+ ac.contestZoneWidth
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+ ac.enemyBufferWidth;
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const int totalHeight = ac.heightTiles;
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painter.setPen(Qt::NoPen);
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for (int x = 0; x < totalWidth; ++x)
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{
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for (int y = 0; y < totalHeight; ++y)
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{
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painter.fillRect(tileRect(QPoint(x, y)), m_visuals->space.fill);
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}
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}
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}
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void ArenaView::drawBuildings(QPainter& painter)
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{
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for (const Building& b : m_sim->buildings().allBuildings())
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{
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const std::map<BuildingType, BuildingVisuals>::const_iterator it =
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m_visuals->buildings.find(b.type);
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if (it == m_visuals->buildings.end()) { continue; }
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const BuildingVisuals& bv = it->second;
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painter.setPen(Qt::NoPen);
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for (const QPoint& cell : b.bodyCells)
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{
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painter.fillRect(tileRect(cell), bv.fill);
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}
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const QPointF tl = tileToWidget(b.anchor);
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const QRectF bboxRect(tl.x(), tl.y(),
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b.footprint.width() * static_cast<qreal>(tilePx()),
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b.footprint.height() * static_cast<qreal>(tilePx()));
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painter.setPen(QPen(bv.outline, 1));
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painter.setBrush(Qt::NoBrush);
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painter.drawRect(bboxRect);
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if (!bv.glyph.isEmpty())
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{
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painter.setPen(bv.outline);
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painter.drawText(bboxRect, Qt::AlignCenter, bv.glyph);
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}
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}
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}
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void ArenaView::drawScrap(QPainter& painter)
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{
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const float r = tilePx() * 0.2f;
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for (const Scrap& scrap : m_sim->scraps().allScraps())
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{
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const QPointF center = worldToWidget(scrap.position);
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painter.setBrush(QColor(128, 110, 90));
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painter.setPen(QPen(QColor(50, 40, 30), 1));
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painter.drawEllipse(center,
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static_cast<qreal>(r), static_cast<qreal>(r));
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}
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}
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void ArenaView::drawShips(QPainter& painter)
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{
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for (const Ship& ship : m_sim->ships().allShips())
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{
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const ShipRole role = shipRole(ship);
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const std::map<ShipRole, ShipVisuals>::const_iterator it =
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m_visuals->ships.find(role);
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if (it == m_visuals->ships.end()) { continue; }
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const QPointF center = worldToWidget(ship.position);
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const QVector2D vel = ship.velocity;
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const QVector2D dir = (vel.length() > 0.0001f)
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? vel.normalized()
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: QVector2D(1.0f, 0.0f);
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const QVector2D perp(-dir.y(), dir.x());
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const float fwd = tilePx() * 0.45f;
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const float side = tilePx() * 0.25f;
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QPolygonF tri;
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tri << QPointF(center.x() + static_cast<qreal>(dir.x() * fwd),
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center.y() + static_cast<qreal>(dir.y() * fwd))
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<< QPointF(center.x() + static_cast<qreal>(perp.x() * side - dir.x() * side),
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center.y() + static_cast<qreal>(perp.y() * side - dir.y() * side))
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<< QPointF(center.x() + static_cast<qreal>(-perp.x() * side - dir.x() * side),
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center.y() + static_cast<qreal>(-perp.y() * side - dir.y() * side));
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painter.setPen(QPen(it->second.outline, 1));
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painter.setBrush(it->second.fill);
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painter.drawPolygon(tri);
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}
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}
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void ArenaView::drawBeams(QPainter& painter)
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{
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painter.setPen(QPen(m_visuals->beams.color, m_visuals->beams.widthPx));
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for (const ActiveBeam& beam : m_activeBeams)
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{
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const std::optional<QVector2D> shooterPos = entityPosition(beam.event.shooter);
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const std::optional<QVector2D> targetPos = entityPosition(beam.event.target);
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if (!shooterPos.has_value() || !targetPos.has_value()) { continue; }
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painter.drawLine(worldToWidget(*shooterPos),
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worldToWidget(*targetPos + beam.targetOffset));
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}
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}
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