game/mario/scenes/editor_main_menu.cpp

#include "editor_scenes.hpp"
#include "../../sdlpp/sdlpp.hpp"
#include "../../sdlpp/sdlpp_mouse.hpp"
#include "../global_vars.hpp"
#include "../objectids.hpp"
#include "../editor_visitor.hpp"

bool __update_scenes_main_menu = false;
bool __quit_scenes_main_menu = false;
bool __started_main_menu = false;
uint64_t __cur_button_index_main_menu = -1;
uint64_t __cur_button_index_main_menu_down = -1;
std::vector<std::shared_ptr<Button>> __buttons_main_menu{};
std::shared_ptr<SDLPP::RectangleRender> __mouse_main_menu{};

void quitMainMenu() {
    g_quit = true;
}

void resumeMainMenu() {
    __quit_scenes_main_menu = true;
}

void quitMainMenuCallback(void */*UNUSED*/, Button */*UNUSED*/) {
    quitMainMenu();
}

void resumeMainMenuCallback(void */*UNUSED*/, Button */*UNUSED*/) {
    resumeMainMenu();
}

void resetGlobals() {
    __update_scenes_main_menu = false;
    __quit_scenes_main_menu = false;
    __cur_button_index_main_menu = -1;
    __cur_button_index_main_menu_down = -1;
    __mouse_main_menu->setPos(0, 0);
    for(auto &button : __buttons_main_menu) {
        button->unsetHighlight();
    }
}

void handleKeyUpMainMenu(SDL_Keycode key, SDLPP::Scene &/*UNUSED*/) {
    switch (key) {
    case SDLK_ESCAPE:
        resumeMainMenu();
        break;
    default:
        break;
    }
}

std::shared_ptr<SDLPP::Scene> createSceneMainMenu(std::shared_ptr<SDLPP::Renderer> &renderer) {
    auto scene = std::make_shared<SDLPP::Scene>(renderer);
    auto bg = std::make_shared<SDLPP::RectangleRender>(
        0, 0, 10, 10, renderer, "#00000088", true);
    bg->setPermanent();
    bg->setId(1);
    scene->addObject(bg);
    __mouse_main_menu =
        std::make_shared<SDLPP::RectangleRender>(0.01, 0.01, 0, 0, renderer);
    __mouse_main_menu->setMinWidth(1);
    __mouse_main_menu->setMinHeight(1);
    __mouse_main_menu->setAlignment(SDLPP::OBJ_CENTER, SDLPP::OBJ_CENTER);
    __mouse_main_menu->setId(EDITOR_MOUSE_ID);
    __mouse_main_menu->setColiderColor("#00FF00");
    __mouse_main_menu->addCollision(SDLPP::RectColider({ 0, 0 }, { 1, 1 }));
    scene->addObject(__mouse_main_menu);

    ButtonConfig default_button_theme{};
    default_button_theme.bg_color = "#FFFFFF88";
    default_button_theme.bg_color_highlight = "#FFFFFFBB";
    default_button_theme.bg_color_disabled = "#AAAAAA88";
    default_button_theme.font_color = "#000000";
    default_button_theme.font_color_highlight = "#000000";
    default_button_theme.font_color_disabled = "#555555";
    default_button_theme.font_outline_color = "#FFFFFF88";
    default_button_theme.font_outline_color_highlight = "#FFFFFFAA";
    default_button_theme.font_outline_color_disabled = "#787878";
    default_button_theme.outline = 0.1;
    // buttons
    __buttons_main_menu.emplace_back(std::make_shared<Button>(
        0.2, 0.25, 0.6, 0.1,
        renderer, "SAVE", default_button_theme, saveMapCallback, nullptr));
    __buttons_main_menu.back()->setAlignment(SDLPP::OBJ_CENTER, SDLPP::OBJ_CENTER);
    __buttons_main_menu.back()->setPermanent();
    __buttons_main_menu.back()->setButtonIndex(__buttons_main_menu.size() - 1);
    __buttons_main_menu.emplace_back(std::make_shared<Button>(
        0.2, 0.4, 0.6, 0.1,
        renderer, "LOAD", default_button_theme, loadMapDialogCallback, nullptr));
    __buttons_main_menu.back()->setAlignment(SDLPP::OBJ_CENTER, SDLPP::OBJ_CENTER);
    __buttons_main_menu.back()->setPermanent();
    __buttons_main_menu.back()->setButtonIndex(__buttons_main_menu.size() - 1);
    __buttons_main_menu.emplace_back(std::make_shared<Button>(
        0.2, 0.55, 0.6, 0.1,
        renderer, "RESUME", default_button_theme, resumeMainMenuCallback, nullptr));
    __buttons_main_menu.back()->setAlignment(SDLPP::OBJ_CENTER, SDLPP::OBJ_CENTER);
    __buttons_main_menu.back()->setPermanent();
    __buttons_main_menu.back()->setButtonIndex(__buttons_main_menu.size() - 1);
    __buttons_main_menu.emplace_back(std::make_shared<Button>(
        0.2, 0.7, 0.6, 0.1,
        renderer, "QUIT", default_button_theme, quitMainMenuCallback, nullptr));
    __buttons_main_menu.back()->setAlignment(SDLPP::OBJ_CENTER, SDLPP::OBJ_CENTER);
    __buttons_main_menu.back()->setPermanent();
    __buttons_main_menu.back()->setButtonIndex(__buttons_main_menu.size() - 1);
    for(auto &button : __buttons_main_menu) {
        scene->addObject(button);
    }
    return scene;
}

void additionalRenderMainMenu(std::shared_ptr<SDLPP::Scene> &/*UNUSED*/) {
    if (__update_scenes_main_menu) {
        for(auto &_scene : game_scenes) {
            _scene.scene->updateSizeAndPosition();
        }
        if (__started_main_menu) {
            __update_scenes_main_menu = false;
        } else {
            __started_main_menu = true;
        }
    }
    if (__quit_scenes_main_menu) {
        game_scenes.pop_back();
        resetGlobals();
    }
}

void getMousePositionFlagsMainMenu(SDLPP::Scene &scene) {
    auto mouse = scene.getObjects({ EDITOR_MOUSE_ID })[0];
    // move mouse colider to mouse position
    mouse->setPos(SDLPP::Mouse::getMousePositionDouble(
        scene.getRenderer(), SDLPP::OBJ_CENTER, SDLPP::OBJ_CENTER));

    MouseVisitor visitor;
    scene.visitCollisions(*mouse, visitor);
    if(visitor.getCurButton() != __cur_button_index_main_menu) {
        if(__cur_button_index_main_menu != (uint64_t)-1) {
            __buttons_main_menu[__cur_button_index_main_menu]->unsetHighlight();
        }
        if(visitor.getCurButton() != (uint64_t)-1) {
            __buttons_main_menu[visitor.getCurButton()]->setHighlight();
        }
    }
    __cur_button_index_main_menu = visitor.getCurButton();
}

void pollEventsMainMenu(std::shared_ptr<SDLPP::Scene> &scene) {
    SDL_Event event;
    while (SDLPP::getSDLEvent(event)) {
        switch (event.type) {
        case SDL_QUIT:
            quitMainMenu();
            break;
        case SDL_KEYUP:
            handleKeyUpMainMenu(event.key.keysym.sym, *scene);
            break;
        case SDL_WINDOWEVENT:
            if (event.window.event == SDL_WINDOWEVENT_RESIZED) {
                __update_scenes_main_menu = true;
            }
            break;
        case SDL_MOUSEMOTION:
            getMousePositionFlagsMainMenu(*scene);
            break;
        case SDL_MOUSEBUTTONUP:
            if (__cur_button_index_main_menu_down == __cur_button_index_main_menu &&
                __cur_button_index_main_menu != (uint64_t)-1) {
                __buttons_main_menu[__cur_button_index_main_menu]->performFunction();
            }
            break;
        case SDL_MOUSEBUTTONDOWN:
            // store current mouse flags in previous mouse flags
            __cur_button_index_main_menu_down = __cur_button_index_main_menu;
            break;
        default:
            break;
        }
    }
}

SceneStruct createEditorMainMenuScene(std::shared_ptr<SDLPP::Renderer> &renderer) {
    SceneStruct ret{};
    ret.scene = createSceneMainMenu(renderer);
    ret.additionalRender = additionalRenderMainMenu;
    ret.doInput = pollEventsMainMenu;
    __update_scenes_main_menu = true;
    return ret;
}