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(20111213)

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Valeriano A.R.
2011-12-13 17:00:00 +01:00
commit 8a84d0a0f5
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259
Audio.c Normal file
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#ifdef WIN32
#define _WIN32_WINNT 0x0501
#include <windows.h>
#endif
#include <SDL/SDL.h>
#include "Audio.h"
static void Audio_MixerCallback(void *ud,Uint8 *stream,int l);
////////////////////////////////////////////////
// AudioWave //
///////////////
// Reference to a sound.
typedef struct Tag_AudioWave {
SDL_AudioSpec spec;
Uint32 len;
Uint8 *buffer;
struct Tag_AudioWave *next;
} AudioWave;
AudioWave *_waves=NULL;
////////////////////////////////////////////////
// AudioChan //
///////////////
// Reference to a sound.
typedef struct Tag_AudioChan {
AudioWave *wave;
Uint32 pos;
unsigned char rightvol;
unsigned char leftvol;
struct Tag_AudioChan *next;
} AudioChan;
AudioChan *_channels=NULL;
AudioChan *_free_channels=NULL;
/////////////////////////////
// Audio_Init
//
// Initializes the game audio.
int Audio_Init(){
SDL_AudioSpec as;
SDL_AudioSpec as2;
// Initialize audio subsistem
#ifdef WIN32
// Force DSound Driver on win32
putenv("SDL_AUDIODRIVER=dsound");
#endif
if(SDL_InitSubSystem(SDL_INIT_AUDIO) < 0){
printf("Audio_Init: Failure initializing SDL Audio.\n");
printf("Audio_Init: SDL Error: %s\n",SDL_GetError());
return(0);
}
// Open the audio device using the desired parameters
as.freq = 44100;
as.format = AUDIO_S16SYS;
as.channels = 2;
as.samples = 1024;
as.callback = Audio_MixerCallback;
if(SDL_OpenAudio(&as, &as2) < 0){
printf("Audio_Init: Failure opening audio.\n");
printf("Audio_Init: SDL Error: %s\n",SDL_GetError());
return(0);
}
// Asert results
if( as2.format != AUDIO_S16SYS ||
as2.freq != 44100 ||
as2.channels != 2 )
{
printf("Audio_Init: Failure opening audio. (44.1Khz/16b/2c).\n");
SDL_CloseAudio();
return(0);
}
// Unpause and ready to go
SDL_PauseAudio(0);
return(1);
}
/////////////////////////////
// Audio_MixerCallback
//
// Mixes the audio channels.
static void Audio_MixerCallback(void *ud,Uint8 *stream,int l){
signed short *ptr_out,*ptr_wave;
AudioChan *prevchan;
AudioChan *chan;
AudioWave *wave;
int len=l/4; // Asume 16bpb and 2 output chan
int chan_remain;
int len_mix;
int i;
// Clean
memset(stream,0,len);
// Mix all the channels
prevchan=NULL;
chan=_channels;
while(chan){
if(!chan->wave){
// Remove finished channels
AudioChan *aux_chan=chan->next;
chan->next=_free_channels;
_free_channels=chan;
chan=aux_chan;
if(prevchan){
prevchan->next=chan;
}else{
_channels=chan;
}
continue;
}
// Prepare the pointers
ptr_out=(signed short *)stream;
ptr_wave=((signed short *)chan->wave->buffer)+chan->pos;
wave=chan->wave;
// Determine mixing lenght
chan_remain=wave->len-chan->pos;
if(chan_remain>len){
len_mix=len;
}else{
len_mix=chan_remain;
chan->wave=NULL;
}
// Mix the buffer
for(i=0;i<len_mix;i++){
int temp;
// Left Channel
temp=ptr_out[0];
temp+=(ptr_wave[0]*chan->leftvol)>>8;
if(temp>(1<<14)){
ptr_out[0]=1<<14;
}else if(temp<-(1<<14)){
ptr_out[0]=-(1<<14);
}else{
ptr_out[0]=temp;
}
// Right Channel
temp=ptr_out[1];
temp+=(ptr_wave[0]*chan->rightvol)>>8;
if(temp>(1<<14)){
ptr_out[1]=1<<14;
}else if(temp<-(1<<14)){
ptr_out[1]=-(1<<14);
}else{
ptr_out[1]=temp;
}
// Next sample
ptr_out+=2;
ptr_wave++;
}
chan->pos+=len_mix;
// Next channel
prevchan=chan;
chan=chan->next;
}
}
/////////////////////////////
// Audio_Frame
//
// Notify a frame update to the audio subsystem.
void Audio_Frame(){
}
/////////////////////////////
// Audio_LoadSound
//
// Loads a sound, giving a reference.
AudioSnd Audio_LoadSound(char *filename){
AudioWave *wave;
// Allocate and load the sound
wave=malloc(sizeof(AudioWave));
if( SDL_LoadWAV(filename,
&wave->spec, &wave->buffer, &wave->len) == NULL )
{
printf("Audio_LoadSound: Failure Loading sound: %s\n",filename);
printf("Audio_LoadSound: SDL Error: %s\n",SDL_GetError());
free(wave);
return(NULL);
}
// Asert results
if( wave->spec.format != AUDIO_S16 ||
wave->spec.freq != 44100 ||
wave->spec.channels != 1 )
{
printf("Audio_LoadSound: Failure opening sound. (44.1Khz/16b/1c).\n");
SDL_FreeWAV(wave->buffer);
free(wave);
return(0);
}
// Correct the lenght
wave->len/=2;
// Take a reference
wave->next=_waves;
_waves=wave;
return((AudioSnd)wave);
}
/////////////////////////////
// Audio_PlaySound
//
// Loads a sound, giving a reference.
void Audio_PlaySound(AudioSnd snd,
float leftvol, float rightvol)
{
AudioChan *chan;
AudioWave *wave;
if(!snd)
return;
// Cast AudioSnd to AudioWave
wave=snd;
// Get a free channel
if(_free_channels){
chan=_free_channels;
_free_channels=chan->next;
chan->next=NULL;
}else{
chan=malloc(sizeof(AudioChan));
chan->next=NULL;
}
// Initialize the channel
chan->wave=wave;
chan->pos=0;
chan->rightvol=(rightvol*255);
chan->leftvol=(leftvol*255);
chan->next=_channels;
_channels=chan;
}

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#ifndef _AUDIO_H_
#define _AUDIO_H_
/////////////////////////////
// Audio_Init
//
// Initializes the game audio.
int Audio_Init();
/////////////////////////////
// Audio_Frame
//
// Notify a frame update to the audio subsystem.
void Audio_Frame();
////////////////////////////////////////////////
// AudioSnd //
//////////////
// Reference to a sound.
typedef void *AudioSnd;
/////////////////////////////
// Audio_LoadSound
//
// Loads a sound, giving a reference.
AudioSnd Audio_LoadSound(char *filename);
/////////////////////////////
// Audio_PlaySound
//
// Loads a sound, giving a reference.
void Audio_PlaySound(AudioSnd snd,
float leftvol, float rightvol);
#endif

349
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#ifdef WIN32
#define _WIN32_WINNT 0x0501
#include <windows.h>
#endif
#include <SDL/SDL.h>
#include "Time.h"
#include "Draw.h"
#include "Input.h"
#include "Audio.h"
// Globals
SDL_Surface *_screen=NULL;
long long _t_frame=17000;
/////////////////////////////
// Draw_Init
//
// Initializes the game window.
int Draw_Init(int width,int height,char *title,int fps){
#ifdef WIN32
// Stdout on the parent console
AttachConsole(ATTACH_PARENT_PROCESS);
if(GetStdHandle(STD_OUTPUT_HANDLE)!=0){
fclose(stdin);
fclose(stdout);
fclose(stderr);
freopen("CONIN$","r",stdin);
freopen("CONOUT$","w",stdout);
freopen("CONOUT$","w",stderr);
}
#endif
// Initialize SDL
if(SDL_Init(SDL_INIT_VIDEO)<0){
printf("Draw_Init: Failure initializing SDL.\n");
printf("Draw_Init: SDL Error: %s\n",SDL_GetError());
return(0);
}
// Initialize video mode
_screen=SDL_SetVideoMode(width,height,32,SDL_HWSURFACE);
if( _screen == NULL){
printf("Draw_Init: Failure initializing video mode.\n");
printf("Draw_Init: SDL Error: %s\n",SDL_GetError());
return(0);
}
SDL_WM_SetCaption(title, NULL);
_t_frame=1000000/fps;
return(1);
}
/////////////////////////////
// Draw_Loop
//
// Loops updating the game window.
void Draw_Loop(int (*proc)()){
int done=0;
SDL_Event event;
Uint8* keys;
long long t_framestart;
long long t_frame;
long long t_swap;
long long t_proc;
int f_count;
t_framestart=Time_GetTime();
while(!done){
// Update screen
t_swap=Time_GetTime();
SDL_Flip(_screen);
t_swap=Time_GetTime()-t_swap;
// Process Events
while(SDL_PollEvent(&event) ){
if(event.type == SDL_QUIT ){
done=1;
}
if(event.type == SDL_KEYDOWN ){
if(event.key.keysym.sym == SDLK_ESCAPE ) {
done=1;
}
}
}
// Process keys for Draw
keys=SDL_GetKeyState(NULL);
if(keys[SDLK_F12]){
// Screenshot key
SDL_SaveBMP(_screen,"shot.bmp");
}
// Input and sound Frame
Input_Frame();
Audio_Frame();
// Process loop, with frameskip for slow swapping systems
t_proc=Time_GetTime();
if(!proc()){
done=1;
}
f_count=(t_swap/_t_frame);
while(f_count>0 && !done){
if(!proc()){
done=1;
}
f_count--;
t_framestart+=_t_frame;
}
t_proc=Time_GetTime()-t_proc;
t_framestart+=_t_frame*(t_proc/_t_frame);
// Sleep to limit frames
t_frame=Time_GetTime()-t_framestart;
if(t_frame<_t_frame){
Time_Pause(_t_frame-t_frame);
}else{
Time_Pause(0);
}
t_framestart=Time_GetTime();
}
}
/////////////////////////////
// Draw_Clean
//
// Cleans the game window.
void Draw_Clean(
unsigned char r,
unsigned char g,
unsigned char b)
{
SDL_Rect rect;
// Draw a full rectangle
rect.x=0;
rect.y=0;
rect.w=_screen->w;
rect.h=_screen->h;
SDL_FillRect(_screen, &rect,
SDL_MapRGB(_screen->format, r, g, b));
}
/////////////////////////////
// Draw_LoadImage
//
// Loads a image, giving a reference.
DrawImg Draw_LoadImage(char *filename){
SDL_Surface *img;
// Load the BMP as a surface
img=SDL_LoadBMP(filename);
if(img == NULL){
printf("Draw_LoadImage: Failure Loading image: %s\n",filename);
printf("Draw_LoadImage: SDL Error: %s\n",SDL_GetError());
return(NULL);
}
// FIX: Setting up the alpha channel.
if(img->format->BytesPerPixel==4){
img->format->Amask=0xFF000000;
img->format->Ashift=24;
}
return((DrawImg *)img);
}
/////////////////////////////
// Draw_ImgSetKeyCol
//
// Setting the image color key.
void Draw_ImgSetKeyCol(DrawImg img,
unsigned char r,
unsigned char g,
unsigned char b)
{
SDL_Surface *surf;
if(!img)
return;
// Set the color key for the surface
surf=(SDL_Surface *)img;
SDL_SetColorKey(surf, SDL_SRCCOLORKEY,
SDL_MapRGB(surf->format, r, g, b));
}
/////////////////////////////
// Draw_ImgSetAlpha
//
// Setting the image alpha.
void Draw_ImgSetAlpha(DrawImg img, unsigned char a){
SDL_Surface *surf;
if(!img)
return;
// Set the alpha for the surface
surf=(SDL_Surface *)img;
SDL_SetAlpha(surf, SDL_SRCALPHA, a);
}
/////////////////////////////
// Draw_DrawImg
// Draw_DrawImgCenter
//
// Draws an image. And a centered variant
void Draw_DrawImg(DrawImg img,int x,int y){
SDL_Surface *surf;
SDL_Rect orig;
SDL_Rect dest;
if(!img)
return;
// Prepare the rects
surf=(SDL_Surface *)img;
orig.x=0;
orig.y=0;
dest.x=x;
dest.y=y;
orig.w=dest.w=surf->w;
orig.h=dest.h=surf->h;
// Blit the surface on the screen
SDL_BlitSurface(surf,&orig,_screen,&dest);
}
void Draw_DrawImgCenter(DrawImg img,int x,int y){
SDL_Surface *surf;
SDL_Rect orig;
SDL_Rect dest;
if(!img)
return;
// Prepare the rects
surf=(SDL_Surface *)img;
orig.x=0;
orig.y=0;
dest.x=x-(surf->w/2);
dest.y=y-(surf->h/2);
orig.w=dest.w=surf->w;
orig.h=dest.h=surf->h;
// Blit the surface on the screen
SDL_BlitSurface(surf,&orig,_screen,&dest);
}
////////////////////////////////////////////////
// DrawFnt //
/////////////
// Reference to a Font.
typedef struct {
SDL_Surface *surf;
int w,h;
} DrawFont;
/////////////////////////////
// Draw_DefaultFont
//
// Creates a image with the default font.
#include "FontData.h"
DrawFnt Draw_DefaultFont(
unsigned char r,
unsigned char g,
unsigned char b,
unsigned char a)
{
DrawFont *font;
int x,y,c;
Uint32 color,color2;
// Create the default font
font=malloc(sizeof(DrawFont));
font->surf = SDL_CreateRGBSurface(SDL_SWSURFACE,
8*256, 8, 32,0,0,0,0);
font->w=8;
font->h=8;
font->surf->format->Amask=0xFF000000;
font->surf->format->Ashift=24;
SDL_SetAlpha(font->surf, SDL_SRCALPHA, 255);
// Draw the font
SDL_LockSurface(font->surf);
color =SDL_MapRGBA(font->surf->format,r,g,b,a);
color2=SDL_MapRGBA(font->surf->format,r,g,b,0);
for(c=0;c<256;c++){
for(y=0;y<8;y++){
for(x=0;x<8;x++){
if(((fontdata_8x8[c*8+y]>>(7-x)) & 0x01)==1){
//Imagen_PutPixel(dest,c*8+x,y,color);
((Uint32 *)font->surf->pixels)[(c*8+x)+(8*256*y)]=
color;
}else{
//Imagen_PutPixel(dest,c*8+x,y,color2);
((Uint32 *)font->surf->pixels)[(c*8+x)+(8*256*y)]=
color2;
}
}
}
}
SDL_UnlockSurface(font->surf);
return((DrawFnt)font);
}
/////////////////////////////
// Draw_DrawText
//
// Draws text using a font
void Draw_DrawText(DrawFnt f,char *text,int x,int y){
DrawFont *font=f;
SDL_Rect orig;
SDL_Rect dest;
char *ptr;
if(!f)
return;
// Prepare the rects
orig.w=dest.w=font->w;
orig.h=dest.h=font->h;
orig.y=0;
dest.x=x;
dest.y=y;
// Iterate the string
ptr=text;
while(*ptr){
orig.x=(*ptr)*font->w;
dest.x=x;
dest.y=y;
// Blit every character
SDL_BlitSurface(font->surf,&orig,_screen,&dest);
x+=font->w;
ptr++;
}
}

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#ifndef _DRAW_H_
#define _DRAW_H_
/////////////////////////////
// Draw_Init
//
// Initializes the game window.
int Draw_Init(int width,int height,char *title,int fps);
/////////////////////////////
// Draw_Loop
//
// Loops updating the game window.
void Draw_Loop(int (*proc)());
/////////////////////////////
// Draw_Clean
//
// Cleans the game window.
void Draw_Clean(
unsigned char r,
unsigned char g,
unsigned char b);
////////////////////////////////////////////////
// DrawImg //
/////////////
// Reference to a image.
typedef void *DrawImg;
/////////////////////////////
// Draw_LoadImage
//
// Loads a image, giving a reference.
DrawImg Draw_LoadImage(char *filename);
/////////////////////////////
// Draw_ImgSetKeyCol
//
// Setting the image color key.
void Draw_ImgSetKeyCol(DrawImg img,
unsigned char r,
unsigned char g,
unsigned char b);
/////////////////////////////
// Draw_ImgSetAlpha
//
// Setting the image alpha.
void Draw_ImgSetAlpha(DrawImg img, unsigned char a);
/////////////////////////////
// Draw_DrawImg
// Draw_DrawImgCenter
//
// Draws an image. And a centered variant
void Draw_DrawImg(DrawImg img,int x,int y);
void Draw_DrawImgCenter(DrawImg img,int x,int y);
////////////////////////////////////////////////
// DrawFnt //
/////////////
// Reference to a Font.
typedef void *DrawFnt;
/////////////////////////////
// Draw_DefaultFont
//
// Loads a image, giving a reference.
DrawFnt Draw_DefaultFont(
unsigned char r,
unsigned char g,
unsigned char b,
unsigned char a);
/////////////////////////////
// Draw_DrawText
//
// Draws text using a font
void Draw_DrawText(DrawFnt f,char *text,int x,int y);
#endif

37
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#ifndef _ENTITY_H_
#define _ENTITY_H_
////////////////////////////////////////////////
// Entity //
////////////
// Reference to an entity.
typedef void *Entity;
/////////////////////////////
// Entity_Create
//
// Creates an entity.
Entity Entity_Create(
int x,int y,
void (*process)(Entity ent,void *data),
void *data);
/////////////////////////////
// Entity_Create
//
// Creates an entity.
/////////////////////////////
// Entity_CreateClass
//
// Initializes the game.
void Entity_CreateClass(char *name,
void *(*createdata)(),
void (*process)(Entity ent,void *data));
#endif

6
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#ifndef _ENTITY_H_
#define _ENTITY_H_
#endif

258
FontData.h Normal file
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static unsigned char fontdata_8x8[2048] = {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xfe,0xfe,0xfe,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x10,0x38,0x7c,0xfe,0x00,0x00,
0x00,0x00,0xfe,0x7c,0x38,0x10,0x00,0x00,
0x20,0x30,0x38,0x3c,0x38,0x30,0x20,0x00,
0x04,0x0c,0x1c,0x3c,0x1c,0x0c,0x04,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x18,0x18,0x18,0x18,0x18,0x00,0x18,0x00,
0x6c,0x6c,0x00,0x00,0x00,0x00,0x00,0x00,
0x6c,0x6c,0xfe,0x6c,0xfe,0x6c,0x6c,0x00,
0x18,0x3e,0x60,0x3c,0x06,0x7c,0x18,0x00,
0x00,0xc6,0xcc,0x18,0x30,0x66,0xc6,0x00,
0x38,0x6c,0x38,0x76,0xdc,0xcc,0x76,0x00,
0x18,0x18,0x30,0x00,0x00,0x00,0x00,0x00,
0x0c,0x18,0x30,0x30,0x30,0x18,0x0c,0x00,
0x30,0x18,0x0c,0x0c,0x0c,0x18,0x30,0x00,
0x00,0x6c,0x38,0xfe,0x38,0x6c,0x00,0x00,
0x00,0x18,0x18,0x7e,0x18,0x18,0x00,0x00,
0x00,0x00,0x00,0x00,0x18,0x18,0x30,0x00,
0x00,0x00,0x00,0x7e,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00,
0x06,0x0c,0x18,0x30,0x60,0xc0,0x80,0x00,
0x3c,0x66,0x6e,0x76,0x66,0x3c,0x00,0x00,
0x18,0x38,0x78,0x18,0x18,0x18,0x00,0x00,
0x3c,0x66,0x06,0x1c,0x30,0x7e,0x00,0x00,
0x3c,0x66,0x0c,0x06,0x66,0x3c,0x00,0x00,
0x1c,0x3c,0x6c,0xcc,0xfe,0x0c,0x00,0x00,
0x7e,0x60,0x7c,0x06,0x66,0x3c,0x00,0x00,
0x1c,0x30,0x60,0x7c,0x66,0x3c,0x00,0x00,
0x7e,0x06,0x06,0x0c,0x18,0x18,0x00,0x00,
0x3c,0x66,0x3c,0x66,0x66,0x3c,0x00,0x00,
0x3c,0x66,0x3e,0x06,0x0c,0x38,0x00,0x00,
0x00,0x18,0x18,0x00,0x18,0x18,0x00,0x00,
0x00,0x18,0x18,0x00,0x18,0x18,0x30,0x00,
0x00,0x06,0x18,0x60,0x18,0x06,0x00,0x00,
0x00,0x00,0x7e,0x00,0x7e,0x00,0x00,0x00,
0x00,0x60,0x18,0x06,0x18,0x60,0x00,0x00,
0x3c,0x66,0x06,0x0c,0x18,0x00,0x18,0x00,
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};

26
GameLib.c Normal file
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@@ -0,0 +1,26 @@
#include <SDL/SDL.h>
#include "Draw.h"
#include "Input.h"
#include "Audio.h"
#include "Entity.h"
#include "GameLib.h"
/////////////////////////////
// GameLib_Init
//
// Initializes the game.
int GameLib_Init(int w,int h,char *title,int fps){
if(!Draw_Init(w,h,title,fps)){
return(0);
}
if(!Input_Init()){
return(0);
}
Audio_Init();
return(1);
}

33
GameLib.h Normal file
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@@ -0,0 +1,33 @@
#ifndef _GAMELIB_H_
#define _GAMELIB_H_
#include "Draw.h"
#include "Input.h"
#include "Audio.h"
#include "Entity.h"
/////////////////////////////
// GameLib_Init
//
// Initializes the game.
int GameLib_Init(int w,int h,char *title,int fps);
/////////////////////////////
// GameLib_Loop
//
// Loops the game.
void GameLib_Loop();
/////////////////////////////
// GameLib_BreakLoop
//
// Breaks the game loop.
void GameLib_BreakLoop();
#endif

68
Input.c Normal file
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@@ -0,0 +1,68 @@
#include <SDL/SDL.h>
#include "Input.h"
// Globals
InputKeyStatus _keys[InputKey_Max];
/////////////////////////////
// Input_Init
//
// Initializes the game input.
int Input_Init(){
int i;
// Mark released all the keys
for(i=0;i<InputKey_Max;i++){
_keys[i]=InputKey_Released;
}
return(1);
}
/////////////////////////////
// Input_Frame
//
// Notify a frame update to the input subsystem.
void Input_Frame(){
Uint8* keys;
// Process Keys
keys=SDL_GetKeyState(NULL);
Input_SetKey(InputKey_Action1,keys[SDLK_z]);
Input_SetKey(InputKey_Action2,keys[SDLK_x]);
Input_SetKey(InputKey_Up,keys[SDLK_UP]);
Input_SetKey(InputKey_Down,keys[SDLK_DOWN]);
Input_SetKey(InputKey_Left,keys[SDLK_LEFT]);
Input_SetKey(InputKey_Right,keys[SDLK_RIGHT]);
Input_SetKey(InputKey_Jump,keys[SDLK_SPACE]);
}
/////////////////////////////
// Input_SetKey
//
// Notify a key press to the input subsystem.
void Input_SetKey(InputKey key,int status){
if(!status){
_keys[key]=InputKey_Released;
}else{
if(_keys[key]>=InputKey_Pressed){
_keys[key]=InputKey_Holded;
}else{
_keys[key]=InputKey_Pressed;
}
}
}
/////////////////////////////
// Input_GetKey
//
// Reports a the status of a key.
InputKeyStatus Input_GetKey(InputKey key){
return(_keys[key]);
}

61
Input.h Normal file
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@@ -0,0 +1,61 @@
#ifndef _INPUT_H_
#define _INPUT_H_
/////////////////////////////
// Input_Init
//
// Initializes the game input.
int Input_Init();
/////////////////////////////
// Input_Frame
//
// Notify a frame update to the input subsystem.
void Input_Frame();
////////////////////////////////////////////////
// InputKey //
//////////////
// Key enumeration.
typedef enum {
InputKey_Action1,
InputKey_Action2,
InputKey_Up,
InputKey_Down,
InputKey_Left,
InputKey_Right,
InputKey_Jump,
InputKey_Max
} InputKey;
/////////////////////////////
// Input_SetKey
//
// Notify a key press to the input subsystem.
void Input_SetKey(InputKey key,int status);
////////////////////////////////////////////////
// InputKeyStatus //
///////////////////
// Key status enumeration.
typedef enum {
InputKey_Released,
InputKey_Pressed,
InputKey_Holded
} InputKeyStatus;
/////////////////////////////
// Input_GetKey
//
// Reports a the status of a key.
InputKeyStatus Input_GetKey(InputKey key);
#endif

26
Makefile Normal file
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@@ -0,0 +1,26 @@
ifneq (,$(findstring MINGW,$(shell uname -s)))
TARGET_ARCH=mingw
else
ARCH:=$(shell uname)
ifeq ($(ARCH), Darwin)
TARGET_ARCH=macosx
else
TARGET_ARCH=linux
endif # Darwin
endif # windir
ifeq ($(TARGET_ARCH),mingw)
include Makefile.mingw
else
ifeq ($(TARGET_ARCH),linux)
include Makefile.linux
else
ifeq ($(TARGET_ARCH),macosx)
include Makefile.macosx
endif # macosx
endif # linux
endif # mingw

56
Makefile.common Normal file
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@@ -0,0 +1,56 @@
HEADS= \
Time.h \
Draw.h \
Input.h \
Audio.h \
Entity.h \
GameLib.h
OBJS= \
$(BUILDDIR)/Time.o \
$(BUILDDIR)/Draw.o \
$(BUILDDIR)/Input.o \
$(BUILDDIR)/Audio.o \
$(BUILDDIR)/Entity.o \
$(BUILDDIR)/GameLib.o \
$(BUILDDIR)/main.o
all: $(BUILDDIR) $(BUILDDIR)/$(RESULT)
$(BUILDDIR):
mkdir $(BUILDDIR)
$(BUILDDIR)/Time.o: Time.c $(HEADS)
$(CC) -c Time.c -o $(BUILDDIR)/Time.o $(CFLAGS)
$(BUILDDIR)/Draw.o: Draw.c $(HEADS)
$(CC) -c Draw.c -o $(BUILDDIR)/Draw.o $(CFLAGS)
$(BUILDDIR)/Input.o: Input.c $(HEADS)
$(CC) -c Input.c -o $(BUILDDIR)/Input.o $(CFLAGS)
$(BUILDDIR)/Audio.o: Audio.c $(HEADS)
$(CC) -c Audio.c -o $(BUILDDIR)/Audio.o $(CFLAGS)
$(BUILDDIR)/Entity.o: Entity.c $(HEADS)
$(CC) -c Entity.c -o $(BUILDDIR)/Entity.o $(CFLAGS)
$(BUILDDIR)/GameLib.o: GameLib.c $(HEADS)
$(CC) -c GameLib.c -o $(BUILDDIR)/GameLib.o $(CFLAGS)
$(BUILDDIR)/main.o: main.c $(HEADS)
$(CC) -c main.c -o $(BUILDDIR)/main.o $(CFLAGS)
$(BUILDDIR)/$(RESULT): $(OBJS)
$(CC) -o $(BUILDDIR)/$(RESULT) $(OBJS) $(LIBS) $(CFLAGS)
clean:
rm -f $(OBJS) $(BUILDDIR)/$(RESULT)
run: $(BUILDDIR)/$(RESULT)
./$(BUILDDIR)/$(RESULT)

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LIBS= -lSDL -lpthread -L/usr/X11R6/lib -L/usr/lib
CFLAGS= -Wall -g -I/usr/include/ -I/usr/include/SDL/ -I/usr/X11R6/include/
CC=gcc
RM=rm -rf
RESULT=game
BUILDDIR=build-linux
include Makefile.common

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LIBS=-lm -ldl -framework Cocoa -framework SDL macosx/SDLMain.m
CFLAGS=-g -DDEBUG -Wall -DMACOSX -ObjC -Dmain=SDL_main
CC=gcc
RM=rm -rf
RESULT=game
BUILDDIR=build-macosx
include Makefile.common

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LIBS=-I/mingw/include/SDL -D_GNU_SOURCE=1 -Dmain=SDL_main
CFLAGS= -L/mingw/lib -lmingw32 -lSDLmain -lSDL -mwindows
CC=gcc
RM=rm -rf
RESULT=game.exe
BUILDDIR=build-mingw
include Makefile.common

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#include <stdio.h>
#include <math.h>
#include <unistd.h>
#include <time.h>
#include <sys/time.h>
#include <SDL/SDL.h>
#include "Time.h"
/////////////////////////////
// Time_GetTime
//
// Gets the current time in usecs.
/////////////////////////////
// Time_Pause
//
// Pauses the execution for t usecs.
#if WIN32
#include <windows.h>
// WIN32
long long Time_GetTime(){
LARGE_INTEGER freq;
LARGE_INTEGER tim;
long long int microt;
QueryPerformanceFrequency(&freq);
QueryPerformanceCounter(&tim);
microt=(tim.QuadPart*1000000)/freq.QuadPart;
return(microt);
}
void Time_Pause(int pausa){
long long tend,t,diff;
tend=Time_GetTime()+pausa;
do{
diff=tend-t;
if(diff>1000){
SDL_Delay(diff/1000);
}else{
Sleep(0);
}
t=Time_GetTime();
}while(tend>=t);
}
#else
#ifdef MACOSX
#include <mach/mach_time.h>
// MacOSX
long long Time_GetTime(){
static mach_timebase_info_data_t info = {0,0};
uint64_t t;
if(info.denom==0){
mach_timebase_info(&info);
}
t=mach_absolute_time()*(info.numer / info.denom);
return(t/1000);
}
void Time_Pause(int pausa){
struct timeval tv;
tv.tv_sec=(long long)pausa/1000000;
tv.tv_usec=(long long)pausa%1000000;
select(0, NULL, NULL, NULL, &tv);
}
#else
// UNIX
long long Time_GetTime(){
struct timeval t;
long long usecs;
gettimeofday(&t,NULL);
usecs=(t.tv_sec*1000000ll)+(t.tv_usec);
return(usecs);
}
void Time_Pause(int pausa){
struct timeval tv;
tv.tv_sec=(long long)pausa/1000000;
tv.tv_usec=(long long)pausa%1000000;
select(0, NULL, NULL, NULL, &tv);
}
#endif // if MACOSX
#endif // if WIN32

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#ifndef _TIME_H_
#define _TIME_H_
/////////////////////////////
// Time_GetTime
//
// Gets the current time in usecs.
long long Time_GetTime();
/////////////////////////////
// Time_Pause
//
// Pauses the execution for t usecs.
void Time_Pause(int pausa);
#endif

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/* SDLMain.m - main entry point for our Cocoa-ized SDL app
Initial Version: Darrell Walisser <dwaliss1@purdue.edu>
Non-NIB-Code & other changes: Max Horn <max@quendi.de>
Feel free to customize this file to suit your needs
*/
#ifndef _SDLMain_h_
#define _SDLMain_h_
#import <Cocoa/Cocoa.h>
@interface SDLMain : NSObject
@end
#endif /* _SDLMain_h_ */

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/* SDLMain.m - main entry point for our Cocoa-ized SDL app
Initial Version: Darrell Walisser <dwaliss1@purdue.edu>
Non-NIB-Code & other changes: Max Horn <max@quendi.de>
Feel free to customize this file to suit your needs
*/
#include <SDL/SDL.h>
#include "SDLMain.h"
#include <sys/param.h> /* for MAXPATHLEN */
#include <unistd.h>
/* For some reaon, Apple removed setAppleMenu from the headers in 10.4,
but the method still is there and works. To avoid warnings, we declare
it ourselves here. */
@interface NSApplication(SDL_Missing_Methods)
- (void)setAppleMenu:(NSMenu *)menu;
@end
/* Use this flag to determine whether we use SDLMain.nib or not */
#define SDL_USE_NIB_FILE 0
/* Use this flag to determine whether we use CPS (docking) or not */
#define SDL_USE_CPS 1
#ifdef SDL_USE_CPS
/* Portions of CPS.h */
typedef struct CPSProcessSerNum
{
UInt32 lo;
UInt32 hi;
} CPSProcessSerNum;
extern OSErr CPSGetCurrentProcess( CPSProcessSerNum *psn);
extern OSErr CPSEnableForegroundOperation( CPSProcessSerNum *psn, UInt32 _arg2, UInt32 _arg3, UInt32 _arg4, UInt32 _arg5);
extern OSErr CPSSetFrontProcess( CPSProcessSerNum *psn);
#endif /* SDL_USE_CPS */
static int gArgc;
static char **gArgv;
static BOOL gFinderLaunch;
static BOOL gCalledAppMainline = FALSE;
static NSString *getApplicationName(void)
{
const NSDictionary *dict;
NSString *appName = 0;
/* Determine the application name */
dict = (const NSDictionary *)CFBundleGetInfoDictionary(CFBundleGetMainBundle());
if (dict)
appName = [dict objectForKey: @"CFBundleName"];
if (![appName length])
appName = [[NSProcessInfo processInfo] processName];
return appName;
}
#if SDL_USE_NIB_FILE
/* A helper category for NSString */
@interface NSString (ReplaceSubString)
- (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString;
@end
#endif
@interface NSApplication (SDLApplication)
@end
@implementation NSApplication (SDLApplication)
/* Invoked from the Quit menu item */
- (void)terminate:(id)sender
{
/* Post a SDL_QUIT event */
SDL_Event event;
event.type = SDL_QUIT;
SDL_PushEvent(&event);
}
@end
/* The main class of the application, the application's delegate */
@implementation SDLMain
/* Set the working directory to the .app's parent directory */
- (void) setupWorkingDirectory:(BOOL)shouldChdir
{
if (shouldChdir)
{
char parentdir[MAXPATHLEN];
CFURLRef url = CFBundleCopyBundleURL(CFBundleGetMainBundle());
CFURLRef url2 = CFURLCreateCopyDeletingLastPathComponent(0, url);
if (CFURLGetFileSystemRepresentation(url2, 1, (UInt8 *)parentdir, MAXPATHLEN)) {
chdir(parentdir); /* chdir to the binary app's parent */
}
CFRelease(url);
CFRelease(url2);
}
}
#if SDL_USE_NIB_FILE
/* Fix menu to contain the real app name instead of "SDL App" */
- (void)fixMenu:(NSMenu *)aMenu withAppName:(NSString *)appName
{
NSRange aRange;
NSEnumerator *enumerator;
NSMenuItem *menuItem;
aRange = [[aMenu title] rangeOfString:@"SDL App"];
if (aRange.length != 0)
[aMenu setTitle: [[aMenu title] stringByReplacingRange:aRange with:appName]];
enumerator = [[aMenu itemArray] objectEnumerator];
while ((menuItem = [enumerator nextObject]))
{
aRange = [[menuItem title] rangeOfString:@"SDL App"];
if (aRange.length != 0)
[menuItem setTitle: [[menuItem title] stringByReplacingRange:aRange with:appName]];
if ([menuItem hasSubmenu])
[self fixMenu:[menuItem submenu] withAppName:appName];
}
}
#else
static void setApplicationMenu(void)
{
/* warning: this code is very odd */
NSMenu *appleMenu;
NSMenuItem *menuItem;
NSString *title;
NSString *appName;
appName = getApplicationName();
appleMenu = [[NSMenu alloc] initWithTitle:@""];
/* Add menu items */
title = [@"About " stringByAppendingString:appName];
[appleMenu addItemWithTitle:title action:@selector(orderFrontStandardAboutPanel:) keyEquivalent:@""];
[appleMenu addItem:[NSMenuItem separatorItem]];
title = [@"Hide " stringByAppendingString:appName];
[appleMenu addItemWithTitle:title action:@selector(hide:) keyEquivalent:@"h"];
menuItem = (NSMenuItem *)[appleMenu addItemWithTitle:@"Hide Others" action:@selector(hideOtherApplications:) keyEquivalent:@"h"];
[menuItem setKeyEquivalentModifierMask:(NSAlternateKeyMask|NSCommandKeyMask)];
[appleMenu addItemWithTitle:@"Show All" action:@selector(unhideAllApplications:) keyEquivalent:@""];
[appleMenu addItem:[NSMenuItem separatorItem]];
title = [@"Quit " stringByAppendingString:appName];
[appleMenu addItemWithTitle:title action:@selector(terminate:) keyEquivalent:@"q"];
/* Put menu into the menubar */
menuItem = [[NSMenuItem alloc] initWithTitle:@"" action:nil keyEquivalent:@""];
[menuItem setSubmenu:appleMenu];
[[NSApp mainMenu] addItem:menuItem];
/* Tell the application object that this is now the application menu */
[NSApp setAppleMenu:appleMenu];
/* Finally give up our references to the objects */
[appleMenu release];
[menuItem release];
}
/* Create a window menu */
static void setupWindowMenu(void)
{
NSMenu *windowMenu;
NSMenuItem *windowMenuItem;
NSMenuItem *menuItem;
windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
/* "Minimize" item */
menuItem = [[NSMenuItem alloc] initWithTitle:@"Minimize" action:@selector(performMiniaturize:) keyEquivalent:@"m"];
[windowMenu addItem:menuItem];
[menuItem release];
/* Put menu into the menubar */
windowMenuItem = [[NSMenuItem alloc] initWithTitle:@"Window" action:nil keyEquivalent:@""];
[windowMenuItem setSubmenu:windowMenu];
[[NSApp mainMenu] addItem:windowMenuItem];
/* Tell the application object that this is now the window menu */
[NSApp setWindowsMenu:windowMenu];
/* Finally give up our references to the objects */
[windowMenu release];
[windowMenuItem release];
}
/* Replacement for NSApplicationMain */
static void CustomApplicationMain (int argc, char **argv)
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
SDLMain *sdlMain;
/* Ensure the application object is initialised */
[NSApplication sharedApplication];
#ifdef SDL_USE_CPS
{
CPSProcessSerNum PSN;
/* Tell the dock about us */
if (!CPSGetCurrentProcess(&PSN))
if (!CPSEnableForegroundOperation(&PSN,0x03,0x3C,0x2C,0x1103))
if (!CPSSetFrontProcess(&PSN))
[NSApplication sharedApplication];
}
#endif /* SDL_USE_CPS */
/* Set up the menubar */
[NSApp setMainMenu:[[NSMenu alloc] init]];
setApplicationMenu();
setupWindowMenu();
/* Create SDLMain and make it the app delegate */
sdlMain = [[SDLMain alloc] init];
[NSApp setDelegate:sdlMain];
/* Start the main event loop */
[NSApp run];
[sdlMain release];
[pool release];
}
#endif
/*
* Catch document open requests...this lets us notice files when the app
* was launched by double-clicking a document, or when a document was
* dragged/dropped on the app's icon. You need to have a
* CFBundleDocumentsType section in your Info.plist to get this message,
* apparently.
*
* Files are added to gArgv, so to the app, they'll look like command line
* arguments. Previously, apps launched from the finder had nothing but
* an argv[0].
*
* This message may be received multiple times to open several docs on launch.
*
* This message is ignored once the app's mainline has been called.
*/
- (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename
{
const char *temparg;
size_t arglen;
char *arg;
char **newargv;
if (!gFinderLaunch) /* MacOS is passing command line args. */
return FALSE;
if (gCalledAppMainline) /* app has started, ignore this document. */
return FALSE;
temparg = [filename UTF8String];
arglen = SDL_strlen(temparg) + 1;
arg = (char *) SDL_malloc(arglen);
if (arg == NULL)
return FALSE;
newargv = (char **) realloc(gArgv, sizeof (char *) * (gArgc + 2));
if (newargv == NULL)
{
SDL_free(arg);
return FALSE;
}
gArgv = newargv;
SDL_strlcpy(arg, temparg, arglen);
gArgv[gArgc++] = arg;
gArgv[gArgc] = NULL;
return TRUE;
}
/* Called when the internal event loop has just started running */
- (void) applicationDidFinishLaunching: (NSNotification *) note
{
int status;
/* Set the working directory to the .app's parent directory */
[self setupWorkingDirectory:gFinderLaunch];
#if SDL_USE_NIB_FILE
/* Set the main menu to contain the real app name instead of "SDL App" */
[self fixMenu:[NSApp mainMenu] withAppName:getApplicationName()];
#endif
/* Hand off to main application code */
gCalledAppMainline = TRUE;
status = SDL_main (gArgc, gArgv);
/* We're done, thank you for playing */
exit(status);
}
@end
@implementation NSString (ReplaceSubString)
- (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString
{
unsigned int bufferSize;
unsigned int selfLen = [self length];
unsigned int aStringLen = [aString length];
unichar *buffer;
NSRange localRange;
NSString *result;
bufferSize = selfLen + aStringLen - aRange.length;
buffer = (unichar *)NSAllocateMemoryPages(bufferSize*sizeof(unichar));
/* Get first part into buffer */
localRange.location = 0;
localRange.length = aRange.location;
[self getCharacters:buffer range:localRange];
/* Get middle part into buffer */
localRange.location = 0;
localRange.length = aStringLen;
[aString getCharacters:(buffer+aRange.location) range:localRange];
/* Get last part into buffer */
localRange.location = aRange.location + aRange.length;
localRange.length = selfLen - localRange.location;
[self getCharacters:(buffer+aRange.location+aStringLen) range:localRange];
/* Build output string */
result = [NSString stringWithCharacters:buffer length:bufferSize];
NSDeallocateMemoryPages(buffer, bufferSize);
return result;
}
@end
#ifdef main
# undef main
#endif
/* Main entry point to executable - should *not* be SDL_main! */
int main (int argc, char **argv)
{
/* Copy the arguments into a global variable */
/* This is passed if we are launched by double-clicking */
if ( argc >= 2 && strncmp (argv[1], "-psn", 4) == 0 ) {
gArgv = (char **) SDL_malloc(sizeof (char *) * 2);
gArgv[0] = argv[0];
gArgv[1] = NULL;
gArgc = 1;
gFinderLaunch = YES;
} else {
int i;
gArgc = argc;
gArgv = (char **) SDL_malloc(sizeof (char *) * (argc+1));
for (i = 0; i <= argc; i++)
gArgv[i] = argv[i];
gFinderLaunch = NO;
}
#if SDL_USE_NIB_FILE
NSApplicationMain (argc, argv);
#else
CustomApplicationMain (argc, argv);
#endif
return 0;
}

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#include <stdio.h>
#include <stdlib.h>
#include "GameLib.h"
#define MAP_ANCHO 11
#define MAP_ALTO 9
DrawImg tiles[20];
int mapa[MAP_ANCHO][MAP_ALTO];
// Dibujar el mapa
void DrawMapa(){
int x;
int y;
int value;
// dibujar el entorno
for(x=0;x<MAP_ANCHO-1;x++){
for(y=0;y<MAP_ALTO-1;y++){
value = mapa[x ][y ] * 8;
value += mapa[x+1][y ] * 4;
value += mapa[x ][y+1] * 2;
value += mapa[x+1][y+1] * 1;
Draw_DrawImg(tiles[value], x*64, y*64);
}
}
}
// Crear un mapa aleatorio
int CrearMapa(){
int x;
int y;
double rnd;
for(x=0;x<MAP_ANCHO;x++){
for(y=0;y<MAP_ALTO;y++){
rnd=rand();
rnd=rnd/RAND_MAX;
if(rnd>0.7){
mapa[x][y]=0;
}else{
mapa[x][y]=1;
}
}
}
return 0;
}
DrawFnt font;
DrawFnt fonts;
DrawImg bisho;
float xacel,yacel;
int xpos=0,ypos=0;
AudioSnd coin;
int t_start,t_end;
int frames=0;
int ProcGame(){
int i;
//Draw_Clean(0,0,0);
DrawMapa();
if(Input_GetKey(InputKey_Up) && yacel>-10){
yacel-=2;
}
if(Input_GetKey(InputKey_Down) && yacel<10){
yacel+=2;
}
if(Input_GetKey(InputKey_Left) && xacel>-10){
xacel-=2;
}
if(Input_GetKey(InputKey_Right) && xacel<10){
xacel+=2;
}
if(xacel!=0){
xpos+=xacel;
if(xacel>0){
xacel-=1;
}else{
xacel+=1;
}
}
if(yacel!=0){
ypos+=yacel;
if(yacel>0){
yacel-=1;
}else{
yacel+=1;
}
}
Draw_DrawImgCenter(bisho,xpos,ypos);
Draw_DrawText(fonts,"BISHO!",xpos-15,ypos-23);
Draw_DrawText(font ,"BISHO!",xpos-16,ypos-24);
if(Input_GetKey(InputKey_Action1)==InputKey_Pressed){
Audio_PlaySound(coin,1,1);
}
/*for(i=0;i<1000;i++){
Draw_DrawImgCenter(bisho,rand()%640,rand()%480);
}*/
Draw_DrawText(fonts,"Hola Mundo!",11,11);
Draw_DrawText(font ,"Hola Mundo!",10,10);
frames++;
return(1);
}
int main(int argc,char *argv[]){
srand(time(NULL));
GameLib_Init(640,480,"Game",60);
tiles[0] = Draw_LoadImage("data/tile0000.bmp");
tiles[1] = Draw_LoadImage("data/tile0001.bmp");
tiles[2] = Draw_LoadImage("data/tile0010.bmp");
tiles[3] = Draw_LoadImage("data/tile0011.bmp");
tiles[4] = Draw_LoadImage("data/tile0100.bmp");
tiles[5] = Draw_LoadImage("data/tile0101.bmp");
tiles[6] = Draw_LoadImage("data/tile0110.bmp");
tiles[7] = Draw_LoadImage("data/tile0111.bmp");
tiles[8] = Draw_LoadImage("data/tile1000.bmp");
tiles[9] = Draw_LoadImage("data/tile1001.bmp");
tiles[10] = Draw_LoadImage("data/tile1010.bmp");
tiles[11] = Draw_LoadImage("data/tile1011.bmp");
tiles[12] = Draw_LoadImage("data/tile1100.bmp");
tiles[13] = Draw_LoadImage("data/tile1101.bmp");
tiles[14] = Draw_LoadImage("data/tile1110.bmp");
tiles[15] = Draw_LoadImage("data/tile1111.bmp");
font=Draw_DefaultFont(255,255,255,255);
fonts=Draw_DefaultFont(0,0,0,127);
//bisho=Draw_LoadImage("data/bisho.bmp");
//Draw_ImgSetKeyCol(bisho,0,255,0);
//Draw_ImgSetAlpha(bisho,127);
bisho=Draw_LoadImage("data/bisho_alpha.bmp");
Draw_ImgSetAlpha(bisho,255);
xpos=320;
ypos=240;
coin=Audio_LoadSound("data/coin.wav");
CrearMapa();
t_start=SDL_GetTicks();
Draw_Loop(ProcGame);
t_end=SDL_GetTicks();
printf("%d %d %.2f\n",t_end-t_start,frames,frames/((t_end-t_start)/1000.0f));
return(0);
}