File: single_player_game_controller.cc

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/*
 * Copyright (C) 2015 by the Widelands Development Team
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 */

#include "logic/single_player_game_controller.h"

#include "ai/computer_player.h"
#include "logic/game.h"
#include "logic/player.h"
#include "logic/playercommand.h"
#include "logic/playersmanager.h"
#include "profile/profile.h"
#include "wlapplication.h"

SinglePlayerGameController::SinglePlayerGameController(Widelands::Game& game,
                                                       bool const useai,
                                                       Widelands::PlayerNumber const local)
   : game_(game),
     use_ai_(useai),
     lastframe_(SDL_GetTicks()),
     time_(game_.get_gametime()),
     speed_(g_options.pull_section("global").get_natural("speed_of_new_game", 1000)),
     paused_(false),
     player_cmdserial_(0),
     local_(local) {
}

SinglePlayerGameController::~SinglePlayerGameController() {
	for (uint32_t i = 0; i < computerplayers_.size(); ++i)
		delete computerplayers_[i];
	computerplayers_.clear();
}

void SinglePlayerGameController::think() {
	uint32_t const curtime = SDL_GetTicks();
	int32_t frametime = curtime - lastframe_;
	lastframe_ = curtime;

	// prevent crazy frametimes
	if (frametime < 0)
		frametime = 0;
	else if (frametime > 1000)
		frametime = 1000;

	frametime = frametime * real_speed() / 1000;

	time_ = game_.get_gametime() + frametime;

	if (use_ai_ && game_.is_loaded()) {
		const Widelands::PlayerNumber nr_players = game_.map().get_nrplayers();
		iterate_players_existing(p, nr_players, game_, plr) if (p != local_) {

			if (p > computerplayers_.size())
				computerplayers_.resize(p);
			if (!computerplayers_[p - 1])
				computerplayers_[p - 1] =
				   ComputerPlayer::get_implementation(plr->get_ai())->instantiate(game_, p);
			computerplayers_[p - 1]->think();
		}
	}
}

void SinglePlayerGameController::send_player_command(Widelands::PlayerCommand& pc) {
	pc.set_cmdserial(++player_cmdserial_);
	game_.enqueue_command(&pc);
}

int32_t SinglePlayerGameController::get_frametime() {
	return time_ - game_.get_gametime();
}

GameController::GameType SinglePlayerGameController::get_game_type() {
	return GameController::GameType::SINGLEPLAYER;
}

uint32_t SinglePlayerGameController::real_speed() {
	if (paused_)
		return 0;
	else
		return speed_;
}

uint32_t SinglePlayerGameController::desired_speed() {
	return speed_;
}

void SinglePlayerGameController::set_desired_speed(uint32_t const speed) {
	speed_ = speed;
}

bool SinglePlayerGameController::is_paused() {
	return paused_;
}

void SinglePlayerGameController::set_paused(bool paused) {
	paused_ = paused;
}

void SinglePlayerGameController::report_result(uint8_t p_nr,
                                               Widelands::PlayerEndResult result,
                                               const std::string& info) {
	Widelands::PlayerEndStatus pes;
	Widelands::Player* player = game_.get_player(p_nr);
	assert(player);
	pes.player = player->player_number();
	pes.time = game_.get_gametime();
	pes.result = result;
	pes.info = info;
	game_.player_manager()->add_player_end_status(pes);
}