/* * BreakHack - A dungeone crawler RPG * Copyright (C) 2018 Linus Probert * * 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 3 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 . */ #include #include #include "menu.h" #include "util.h" #include "sprite.h" #include "defines.h" #include "gui_button.h" #include "keyboard.h" #include "mixer.h" #include "collisions.h" typedef struct MenuItems_t { Sprite *sprite; Sprite *hsprite; GuiButton *button; } MenuItem; Menu * menu_create(void) { Menu *menu = ec_malloc(sizeof(Menu)); menu->items = linkedlist_create(); menu->selected = 0; return menu; } static bool handle_keyboard_input(Menu *m, Input *input) { int lastSelect = -1; if (input_key_is_pressed(input, KEY_UP)) { lastSelect = m->selected; m->selected--; } else if (input_key_is_pressed(input, KEY_DOWN)) { lastSelect = m->selected; m->selected++; } else if (input_key_is_pressed(input, KEY_ENTER)) { MenuItem *item = linkedlist_get(&m->items, m->selected); if (item->button->event) item->button->event(item->button->usrdata); return true; } else { return false; } m->selected = m->selected % linkedlist_size(m->items); if (lastSelect != -1) mixer_play_effect(CLICK); ((MenuItem*) linkedlist_get(&m->items, lastSelect))->button->hover = false; ((MenuItem*) linkedlist_get(&m->items, m->selected))->button->hover = true; return false; } static void handle_mouse_motion(Menu *m, Input *input) { if (!input_mouse_moved(input)) return; Position p = { input->mouseX, input->mouseY }; LinkedList *items = m->items; int index = 0; while (items) { MenuItem *item = items->data; items = items->next; if (position_in_rect(&p, &item->button->area)) { m->selected = index; break; } index++; } } void menu_update(Menu *m, Input *input) { if (handle_keyboard_input(m, input)) { return; } handle_mouse_motion(m, input); LinkedList *items = m->items; while (items) { MenuItem *item = items->data; items = items->next; Position p = { input->mouseX, input->mouseY }; if (position_in_rect(&p, &item->button->area) && input_mousebutton_is_pressed(input, MBUTTON_LEFT)) { item->button->event(NULL); return; } } } void menu_item_add(Menu *m, Sprite *s1, Sprite *s2, void (*event)(void*)) { MenuItem *item = ec_malloc(sizeof(MenuItem)); item->sprite = s1; item->hsprite = s2; SDL_Rect area = { item->sprite->pos.x, item->sprite->pos.y, item->sprite->textures[0]->dim.width, item->sprite->textures[0]->dim.height }; item->button = gui_button_create(area, event, NULL); if (linkedlist_size(m->items) == 0) item->button->hover = true; linkedlist_append(&m->items, item); } void menu_render(Menu *m, Camera *cam) { LinkedList *items = m->items; int index = 0; while (items) { MenuItem *item = items->data; items = items->next; if (m->selected == index) sprite_render(item->hsprite, cam); else sprite_render(item->sprite, cam); index++; } } static void menu_item_destroy(MenuItem *item) { if (item->sprite) sprite_destroy(item->sprite); if (item->hsprite) sprite_destroy(item->hsprite); gui_button_destroy(item->button); free(item); } void menu_destroy(Menu *m) { while (m->items) menu_item_destroy(linkedlist_pop(&m->items)); free(m); }