blame: source/code/themes.cpp

/*

===========================================================================

blockattack - Block Attack - Rise of the Blocks

Copyright (C) 2005-2023 Poul Sander

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, see http://www.gnu.org/licenses/

Source information and contacts persons can be found at

https://www.blockattack.net

===========================================================================

*/

#include "themes.hpp"

#include "sago/SagoMisc.hpp"

#include <vector>

#include <unordered_map>

#include "nlohmann/json.hpp"

using json = nlohmann::json;

void to_json(json& j, const BackGroundData& p) {

	j = json{ {"background_name", p.name}, {"background_sprite", p.background_sprite} };

}

void to_json(json& j, const Theme& p) {

	j = json{ {"theme_name", p.theme_name}, {"back_board", p.back_board}, {"background_name", p.background.name}, {"decoration_name", p.decoration.name} };

}

void to_json(json& j, const ThemeFileData& p) {

	j = json{ {"background_data", p.background_data}, {"themes", p.themes} };

}

static std::vector<Theme> themes(1);

static std::unordered_map<std::string, BackGroundData> background_data;

static bool initialized = false;

static size_t current_theme = 0;

static void InitBackGroundData() {

	BackGroundData standard;

	standard.name = "standard";

	standard.background_sprite = "background";

	standard.background_sprite_16x9 = "background_sixteen_nine";

	standard.background_scale = ImgScale::Stretch;

	background_data["standard"] = standard;

	BackGroundData alt_background;

	alt_background.name = "alt_background";

	alt_background.background_sprite = "background_sample";

	alt_background.background_sprite_16x9 = "";

	alt_background.background_scale = ImgScale::Tile;

	alt_background.tileMoveSpeedX = 50;

	alt_background.tileMoveSpeedY = 100;

	background_data["alt_background"] = alt_background;

}

static void FillMissingFields(Theme& theme) {

	if (theme.background.name.empty()) {

		//If the theme does not define a background then use the standard.

		theme.background.name = "standard";

	}

	theme.background = background_data[theme.background.name];

}

void DumpThemeData() {

	ThemeFileData tfd;

	tfd.themes = themes;

	for (auto& pair : background_data) {

		tfd.background_data.push_back(pair.second);

	}

	json j = tfd;

	std::string s = j.dump(4);

	sago::WriteFileContent("themes_dump.json", s);

}

void InitThemes() {

	if (initialized) {

		return;

	}

	InitBackGroundData();

	themes.resize(1);  //Add the default theme

	FillMissingFields(themes[0]);

	Theme snow;

	snow.theme_name = "snow";

	snow.back_board = "back_board_sample_snow";

	snow.background.name = "alt_background";

	FillMissingFields(snow);

	themes.push_back(snow);

	DumpThemeData();

}

Theme getNextTheme() {

	InitThemes();

	current_theme++;

	current_theme = current_theme % themes.size();

	return themes.at(current_theme);

}

Theme getTheme(size_t theme_number) {

	InitThemes();

	return themes.at(theme_number % themes.size());

}