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/*
* Copyright (C) 2018 Vito Caputo - <vcaputo@pengaru.com>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3 as published
* by the Free Software Foundation.
*
* 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/>.
*/
#include <SDL.h>
#include <SDL_mixer.h>
#include <assert.h>
#include <stdlib.h> /* exit, atexit */
#include "credits.h"
#include "whale.h"
#include "game.h"
#include "intro.h"
#include "macros.h"
#include "stage.h"
/* whale - Blender 2018 entry */
/* whales / doing astrophysics / crater lake */
#define DEFAULT_WIDTH 800
#define DEFAULT_HEIGHT 450
#define WINDOW_FLAGS (SDL_WINDOW_RESIZABLE)
typedef struct whale_t {
struct {
SDL_Window *window;
SDL_Renderer *renderer;
Mix_Music *music;
Uint32 tick_offsets[2];
} sdl;
whale_context_t context;
stage_t *stage;
} whale_t;
stage_t * whale_get_stage(const whale_t *whale)
{
return whale->stage;
}
void whale_set_music(whale_t *whale, const char *file, unsigned flags)
{
int loop = (flags & WHALE_MUSIC_FLAG_LOOP) ? -1 : 0;
int fade = (flags & WHALE_MUSIC_FLAG_FADEIN);
if (whale->sdl.music) {
Mix_HaltMusic();
Mix_FreeMusic(whale->sdl.music);
whale->sdl.music = NULL;
}
whale->sdl.music = Mix_LoadMUS(file);
fatal_if(!whale->sdl.music,
"Unable to load music \"%s\"", file);
Mix_VolumeMusic(32); /* XXX: just hard-coding music volume for now */
if (fade) {
fatal_if(Mix_FadeInMusic(whale->sdl.music, loop, 1000),
"Unable to play music");
} else {
fatal_if(Mix_PlayMusic(whale->sdl.music, loop),
"Unable to play music");
}
}
void whale_set_context(whale_t *whale, whale_context_t context)
{
whale->context = context;
}
/* return ticks counter */
unsigned whale_ticks(whale_t *whale, whale_ticks_t type)
{
return SDL_GetTicks() - whale->sdl.tick_offsets[type];
}
/* reset ticks counter to begin counting from now */
void whale_ticks_reset(whale_t *whale, whale_ticks_t type)
{
whale->sdl.tick_offsets[type] = SDL_GetTicks();
}
static void whale_startup(whale_t *whale)
{
fatal_if(SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO) != 0,
"Unable to initialize SDL");
fatal_if(atexit(SDL_Quit),
"Unable to set exit handler");
fatal_if(Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 2048) == -1,
"Unable to open audio");
whale->sdl.window = SDL_CreateWindow("whale",
SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED,
DEFAULT_WIDTH, DEFAULT_HEIGHT,
WINDOW_FLAGS);
fatal_if(!whale->sdl.window,
"Unable to create SDL window");
whale->sdl.renderer = SDL_CreateRenderer(whale->sdl.window, -1,
SDL_RENDERER_PRESENTVSYNC);
fatal_if(!whale->sdl.renderer,
"Unable to create SDL renderer");
whale->stage = stage_new(whale->sdl.renderer, 1.7777f);
fatal_if(!whale->stage,
"Unable to create new stage");
}
static void whale_update(whale_t *whale)
{
switch (whale->context) {
case WHALE_CONTEXT_INTRO:
whale_intro_update(whale);
break;
case WHALE_CONTEXT_GAME:
whale_game_update(whale);
break;
case WHALE_CONTEXT_CREDITS:
whale_credits_update(whale);
break;
default:
assert(0);
}
stage_render(whale->stage);
SDL_RenderPresent(whale->sdl.renderer);
}
static void whale_event(whale_t *whale, SDL_Event *event)
{
switch (whale->context) {
case WHALE_CONTEXT_INTRO:
whale_intro_event(whale, event);
break;
case WHALE_CONTEXT_GAME:
whale_game_event(whale, event);
break;
case WHALE_CONTEXT_CREDITS:
whale_credits_event(whale, event);
break;
default:
assert(0);
}
}
static int whale_shutdown(whale_t *whale)
{
stage_free(whale->stage);
SDL_DestroyRenderer(whale->sdl.renderer);
SDL_DestroyWindow(whale->sdl.window);
Mix_CloseAudio();
return EXIT_SUCCESS;
}
static void whale_loop(whale_t *whale)
{
for (;;) {
SDL_Event ev;
while (SDL_PollEvent(&ev)) {
switch (ev.type) {
case SDL_APP_TERMINATING:
case SDL_QUIT:
return;
case SDL_WINDOWEVENT:
break;
case SDL_MOUSEMOTION:
break;
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
break;
case SDL_MOUSEWHEEL:
break;
case SDL_FINGERDOWN:
case SDL_FINGERUP:
case SDL_FINGERMOTION:
break;
case SDL_KEYDOWN:
case SDL_KEYUP:
break;
default:
break;
}
whale_event(whale, &ev);
}
whale_update(whale);
}
}
int main(int argc, char *argv[])
{
whale_t whale = {};
whale_startup(&whale);
whale_loop(&whale);
return whale_shutdown(&whale);
}
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