92 lines
2.7 KiB
C++
92 lines
2.7 KiB
C++
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#include "map_simulation.hpp"
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#include "../../config.h"
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MapSimulation::MapSimulation()
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{
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mapPlayersById = std::map<int, std::shared_ptr<MapPlayer>>();
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}
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std::shared_ptr<MapSimulation> MapSimulation::getInstance()
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{
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if (singletonInstance == nullptr)
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{
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singletonInstance = std::make_shared<MapSimulation>();
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}
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return singletonInstance;
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}
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void MapSimulation::updateSimulation()
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{
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// Get player positions
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for (auto &mapPlayer: mapPlayersById)
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{
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auto player = mapPlayer.second->player;
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auto body = mapPlayer.second->body;
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auto coordinates = player->coordinates->world();
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b2Vec2 playerPosition = b2Vec2(coordinates.x, coordinates.y);
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body->SetTransform(playerPosition, 0);
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}
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world->Step(FRAME_TIME.asSeconds(), MAPSIM_VELOCITY_ITERATIONS, MAPSIM_POSITION_ITERATIONS);
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// Update player positions
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for (auto &mapPlayer: mapPlayersById)
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{
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auto player = mapPlayer.second->player;
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auto body = mapPlayer.second->body;
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b2Vec2 playerPosition = body->GetPosition();
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player->coordinates->set(sf::Vector2f(playerPosition.x, playerPosition.y));
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}
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}
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void MapSimulation::resetMap(sf::Vector2f worldMapSize)
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{
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// No gravity, since this a top-down view of the map
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world = std::make_shared<b2World>(b2Vec2(0.0f, 0.0f));
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mapPlayersById.clear();
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// Create map borders
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constructSquareObstacle(-1, 0, 0, worldMapSize.y);
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constructSquareObstacle(0, -1, worldMapSize.x, 0);
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constructSquareObstacle(worldMapSize.x, 0, worldMapSize.x + 1, worldMapSize.y);
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constructSquareObstacle(0, worldMapSize.y, worldMapSize.x, worldMapSize.y + 1);
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}
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void MapSimulation::constructSquareObstacle(float minX, float minY, float maxX, float maxY)
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{
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b2BodyDef bodyDef;
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bodyDef.type = b2_staticBody;
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bodyDef.position.Set((maxX - minX) / 2.f, (maxY - minY) / 2.f);
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b2Body *body = world->CreateBody(&bodyDef);
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b2PolygonShape shape;
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shape.SetAsBox(maxX - minX, maxY - minY);
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b2FixtureDef fixtureDef;
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fixtureDef.shape = &shape;
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fixtureDef.density = 1.0f;
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body->CreateFixture(&fixtureDef);
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}
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void MapSimulation::addPlayer(Player *player)
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{
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b2BodyDef bodyDef;
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bodyDef.type = b2_kinematicBody;
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bodyDef.position.Set(player->getTrackablePosition().x, player->getTrackablePosition().y);
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b2Body *body = world->CreateBody(&bodyDef);
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b2CircleShape shape;
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shape.m_radius = MAPSIM_PLAYER_RADIUS;
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shape.m_p.Set(0, 0);
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b2FixtureDef fixtureDef;
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fixtureDef.shape = &shape;
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fixtureDef.density = 1.0f;
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body->CreateFixture(&fixtureDef);
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mapPlayersById[player->getPlayerId()] = std::make_shared<MapPlayer>(player, body);
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}
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