project-swan/libswan/src/Game.cc

#include "Game.h"

#include <math.h>
#include <time.h>
#include <memory>

#include "log.h"
#include "Tile.h"
#include "OS.h"

namespace Swan {

void Game::createWorld(const std::string &worldgen, const std::vector<std::string> &modPaths) {
	world_.reset(new World(this, time(NULL), modPaths));

	world_->setWorldGen(worldgen);
	world_->setCurrentPlane(world_->addPlane());
	world_->spawnPlayer();
}

TilePos Game::getMouseTile() {
	auto pos = (getMousePos() * 2 - renderer_.winScale()) / cam_.zoom + cam_.pos;
	return TilePos{(int)floor(pos.x), (int)floor(pos.y)};
}

Cygnet::Color Game::backgroundColor() {
	return world_->backgroundColor();
}

void Game::draw() {
	world_->draw(renderer_);
	renderer_.draw(cam_);
}

void Game::update(float dt) {
	// Zoom the window using the scroll wheel
	cam_.zoom += (float)wasWheelScrolled() * 0.05f * cam_.zoom;
	if (cam_.zoom > 1)
		cam_.zoom = 1;
	else if (cam_.zoom < 0.025)
		cam_.zoom = 0.025;

	world_->update(dt);

	didScroll_ = 0;
	didPressKeys_.reset();
	didReleaseKeys_.reset();
	didPressButtons_.reset();
	didReleaseButtons_.reset();
}

void Game::tick(float dt) {
	world_->tick(dt);
}

}