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95 lines
2.4 KiB
95 lines
2.4 KiB
3 years ago
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#include "app.hpp"
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#include "cloth.hpp"
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#include "window.hpp"
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#include <SDL2/SDL_events.h>
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#include <SDL2/SDL_keycode.h>
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#include <SDL2/SDL_render.h>
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#include <SDL2/SDL_timer.h>
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#include <SDL2/SDL_video.h>
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App* app_init(App_config conf) {
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App* app = new App;
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if (conf.window_dimensions.x <= 0) {
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conf.window_dimensions.x = 500;
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}
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if (conf.window_dimensions.y <= 0) {
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conf.window_dimensions.y = 500;
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}
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app->conf = conf;
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app->window = new_window(conf.win_name, conf.window_dimensions);
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app->cloth = new_cloth(conf.cloth_startpos, conf.cloth_dimensions, conf.cloth_spacing);
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if (app->window == NULL || app->cloth == NULL) {
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return NULL;
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}
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return app;
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}
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void app_handle_input(App* app) {
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SDL_Event event;
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while (SDL_PollEvent(&event)) {
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switch (event.type) {
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case SDL_QUIT:
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app->is_running = false;
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break;
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case SDL_KEYDOWN:
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switch (event.key.keysym.sym) {
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case SDLK_ESCAPE:
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app->is_running = false;
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break;
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case SDLK_q:
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app->is_running = false;
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break;
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case SDLK_SPACE:
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toggle_pause(app);
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break;
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}
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}
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}
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}
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void app_render(App* app) {
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fill_screen(app->window, app->conf.background_color);
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draw_cloth(
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app->window, app->cloth,
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app->conf.point_color, app->conf.connection_color, app->conf.point_selected_color);
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SDL_RenderPresent(app->window->renderer);
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}
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void app_update(App* app) {
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if (app->paused) {
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return;
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}
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compute_cloth_forces(app->cloth, app->conf.gravity);
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app->conf.gravity = Vec2f{app->conf.gravity.x-0.0005f, app->conf.gravity.y-0.001f};
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int updated_window_w;
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int updated_window_h;
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SDL_GetWindowSize(app->window->sdl_win, &updated_window_w, &updated_window_h);
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app->window->dimensions = Vec2{(unsigned int) updated_window_w, (unsigned int) updated_window_h};
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}
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void destroy_app(App* app) {
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destroy_cloth(app->cloth);
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destroy_window(app->window);
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app->cloth = NULL;
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app->window = NULL;
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app->is_running = false;
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}
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void toggle_pause(App* app) {
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if (app->paused) {
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app->paused = false;
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} else {
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app->paused = true;
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}
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}
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