/* Mini SDL Demo
* featuring SDL2 + SDL2_mixer + SDL2_image + SDL2_ttf
* on Nintendo Switch using libnx
*
* Copyright 2018 carsten1ns
* 2020 WinterMute
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include <time.h>
#include <unistd.h>
#include <SDL.h>
#include <SDL_mixer.h>
#include <SDL_image.h>
#include <SDL_ttf.h>
#include <switch.h>
// some switch buttons
#define JOY_A 0
#define JOY_B 1
#define JOY_X 2
#define JOY_Y 3
#define JOY_PLUS 10
#define JOY_MINUS 11
#define JOY_LEFT 12
#define JOY_UP 13
#define JOY_RIGHT 14
#define JOY_DOWN 15
#define SCREEN_W 1280
#define SCREEN_H 720
SDL_Texture * render_text(SDL_Renderer *renderer, const char* text, TTF_Font *font, SDL_Color color, SDL_Rect *rect)
{
SDL_Surface *surface;
SDL_Texture *texture;
surface = TTF_RenderText_Solid(font, text, color);
texture = SDL_CreateTextureFromSurface(renderer, surface);
rect->w = surface->w;
rect->h = surface->h;
SDL_FreeSurface(surface);
return texture;
}
int rand_range(int min, int max){
return min + rand() / (RAND_MAX / (max - min + 1) + 1);
}
int main(int argc, char** argv) {
romfsInit();
chdir("romfs:/");
int exit_requested = 0;
int trail = 0;
int wait = 25;
SDL_Texture *switchlogo_tex = NULL, *sdllogo_tex = NULL, *helloworld_tex = NULL;
SDL_Rect pos = { 0, 0, 0, 0 }, sdl_pos = { 0, 0, 0, 0 };
Mix_Music *music = NULL;
Mix_Chunk *sound[4] = { NULL };
SDL_Event event;
SDL_Color colors[] = {
{ 128, 128, 128, 0 }, // gray
{ 255, 255, 255, 0 }, // white
{ 255, 0, 0, 0 }, // red
{ 0, 255, 0, 0 }, // green
{ 0, 0, 255, 0 }, // blue
{ 255, 255, 0, 0 }, // brown
{ 0, 255, 255, 0 }, // cyan
{ 255, 0, 255, 0 }, // purple
};
int col = 0, snd = 0;
srand(time(NULL));
int vel_x = rand_range(1, 5);
int vel_y = rand_range(1, 5);
SDL_Init(SDL_INIT_VIDEO|SDL_INIT_TIMER);
Mix_Init(MIX_INIT_OGG);
IMG_Init(IMG_INIT_PNG);
TTF_Init();
SDL_Window* window = SDL_CreateWindow("sdl2+mixer+image+ttf demo", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, SCREEN_W, SCREEN_H, SDL_WINDOW_SHOWN);
SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_SOFTWARE);
// load logos from file
SDL_Surface *sdllogo = IMG_Load("data/sdl.png");
if (sdllogo) {
sdl_pos.w = sdllogo->w;
sdl_pos.h = sdllogo->h;
sdllogo_tex = SDL_CreateTextureFromSurface(renderer, sdllogo);
SDL_FreeSurface(sdllogo);
}
SDL_Surface *switchlogo = IMG_Load("data/switch.png");
if (switchlogo) {
pos.x = SCREEN_W / 2 - switchlogo->w / 2;
pos.y = SCREEN_H / 2 - switchlogo->h / 2;
pos.w = switchlogo->w;
pos.h = switchlogo->h;
switchlogo_tex = SDL_CreateTextureFromSurface(renderer, switchlogo);
SDL_FreeSurface(switchlogo);
}
col = rand_range(0, 7);
SDL_InitSubSystem(SDL_INIT_JOYSTICK);
SDL_JoystickEventState(SDL_ENABLE);
SDL_JoystickOpen(0);
// load font from romfs
TTF_Font* font = TTF_OpenFont("data/LeroyLetteringLightBeta01.ttf", 36);
// render text as texture
SDL_Rect helloworld_rect = { 0, SCREEN_H - 36, 0, 0 };
helloworld_tex = render_text(renderer, "Hello, world!", font, colors[1], &helloworld_rect);
// no need to keep the font loaded
TTF_CloseFont(font);
SDL_InitSubSystem(SDL_INIT_AUDIO);
Mix_AllocateChannels(5);
Mix_OpenAudio(48000, AUDIO_S16, 2, 4096);
// load music and sounds from files
music = Mix_LoadMUS("data/background.ogg");
sound[0] = Mix_LoadWAV("data/pop1.wav");
sound[1] = Mix_LoadWAV("data/pop2.wav");
sound[2] = Mix_LoadWAV("data/pop3.wav");
sound[3] = Mix_LoadWAV("data/pop4.wav");
if (music)
Mix_PlayMusic(music, -1);
while (!exit_requested
&& appletMainLoop()
) {
while (SDL_PollEvent(&event)) {
if (event.type == SDL_QUIT)
exit_requested = 1;
// use joystick
if (event.type == SDL_JOYBUTTONDOWN) {
if (event.jbutton.button == JOY_UP)
if (wait > 0)
wait--;
if (event.jbutton.button == JOY_DOWN)
if (wait < 100)
wait++;
if (event.jbutton.button == JOY_PLUS)
exit_requested = 1;
if (event.jbutton.button == JOY_B)
trail =! trail;
}
}
// set position and bounce on the walls
pos.y += vel_y;
pos.x += vel_x;
if (pos.x + pos.w > SCREEN_W) {
pos.x = SCREEN_W - pos.w;
vel_x = -rand_range(1, 5);
col = rand_range(0, 4);
snd = rand_range(0, 3);
if (sound[snd])
Mix_PlayChannel(-1, sound[snd], 0);
}
if (pos.x < 0) {
pos.x = 0;
vel_x = rand_range(1, 5);
col = rand_range(0, 4);
snd = rand_range(0, 3);
if (sound[snd])
Mix_PlayChannel(-1, sound[snd], 0);
}
if (pos.y + pos.h > SCREEN_H) {
pos.y = SCREEN_H - pos.h;
vel_y = -rand_range(1, 5);
col = rand_range(0, 4);
snd = rand_range(0, 3);
if (sound[snd])
Mix_PlayChannel(-1, sound[snd], 0);
}
if (pos.y < 0) {
pos.y = 0;
vel_y = rand_range(1, 5);
col = rand_range(0, 4);
snd = rand_range(0, 3);
if (sound[snd])
Mix_PlayChannel(-1, sound[snd], 0);
}
if (!trail) {
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0xFF);
SDL_RenderClear(renderer);
}
// put logos on screen
if (sdllogo_tex)
SDL_RenderCopy(renderer, sdllogo_tex, NULL, &sdl_pos);
if (switchlogo_tex) {
SDL_SetTextureColorMod(switchlogo_tex, colors[col].r, colors[col].g, colors[col].b);
SDL_RenderCopy(renderer, switchlogo_tex, NULL, &pos);
}
// put text on screen
if (helloworld_tex)
SDL_RenderCopy(renderer, helloworld_tex, NULL, &helloworld_rect);
SDL_RenderPresent(renderer);
SDL_Delay(wait);
}
// clean up your textures when you are done with them
if (sdllogo_tex)
SDL_DestroyTexture(sdllogo_tex);
if (switchlogo_tex)
SDL_DestroyTexture(switchlogo_tex);
if (helloworld_tex)
SDL_DestroyTexture(helloworld_tex);
// stop sounds and free loaded data
Mix_HaltChannel(-1);
Mix_FreeMusic(music);
for (snd = 0; snd < 4; snd++)
if (sound[snd])
Mix_FreeChunk(sound[snd]);
IMG_Quit();
Mix_CloseAudio();
TTF_Quit();
Mix_Quit();
SDL_Quit();
romfsExit();
return 0;
}