<![CDATA[
#include "SDL.h"
#define VERSION "0.2.0"
#define WIDTH 320
#define HEIGHT 240
#define TICK_INTERVAL 20
#define SPEED_FACTOR 0.5
// globals
SDL_Surface* screen;
// protos
void DrawSprite( SDL_Surface *surface, int x, int y);
void DrawPlane( SDL_Surface *surface, int time, float scale, int y);
void DrawSky(void);
Uint32 TimeLeft(void);
/*
* fonctions
*/
void DrawSprite( SDL_Surface *surface, int x, int y)
{
SDL_Rect destination;
destination.x = x;
destination.y = y;
SDL_BlitSurface( surface, NULL, screen, &destination );
}
void DrawPlane( SDL_Surface *surface, int time, float scale, int y)
{
int offset;
offset = (int) ((float) (time * scale * SPEED_FACTOR))%WIDTH;
DrawSprite( surface, offset - WIDTH, y );
DrawSprite( surface, offset, y );
}
void DrawSky(void)
{
SDL_Rect r;
r.x = 0;
r.w = WIDTH;
r.y = 0;
r.h = 76;
SDL_FillRect( screen, &r, SDL_MapRGB(screen->format, 99, 113, 132) );
r.y += r.h;
r.h = 27;
SDL_FillRect( screen, &r, SDL_MapRGB(screen->format, 115, 113, 132) );
r.y += r.h;
r.h = 14;
SDL_FillRect( screen, &r, SDL_MapRGB(screen->format, 132, 113, 132) );
r.y += r.h;
r.h = 10;
SDL_FillRect( screen, &r, SDL_MapRGB(screen->format, 148, 113, 132) );
r.y += r.h;
r.h = 8;
SDL_FillRect( screen, &r, SDL_MapRGB(screen->format, 165, 113, 132) );
r.y += r.h;
r.h = 7;
SDL_FillRect( screen, &r, SDL_MapRGB(screen->format, 181, 113, 132) );
r.y += r.h;
r.h = 6;
SDL_FillRect( screen, &r, SDL_MapRGB(screen->format, 198, 113, 132) );
r.y += r.h;
r.h = 6;
SDL_FillRect( screen, &r, SDL_MapRGB(screen->format, 214, 113, 132) );
r.y += r.h;
r.h = 4;
SDL_FillRect( screen, &r, SDL_MapRGB(screen->format, 231, 113, 132) );
r.y += r.h;
r.h = 6;
SDL_FillRect( screen, &r, SDL_MapRGB(screen->format, 247, 113, 132) );
}
Uint32 TimeLeft(void)
{
static Uint32 next_time = 0;
Uint32 now;
now = SDL_GetTicks();
if ( next_time <= now )
{
next_time = now + TICK_INTERVAL;
return(0);
}
return(next_time - now);
}
/*
* le main
*/
int main(int argc, char* argv[])
{
SDL_Event event;
SDL_Surface* herbe0;
SDL_Surface* herbe1;
SDL_Surface* herbe2;
SDL_Surface* herbe3;
SDL_Surface* herbe4;
SDL_Surface* nuages0;
SDL_Surface* nuages1;
SDL_Surface* nuages2;
SDL_Surface* nuages3;
SDL_Surface* nuages4;
SDL_Surface* barriere;
SDL_Surface* montagnes;
SDL_Surface* lune;
int exitkey = 0;
int iScroll = 0;
if( SDL_Init(SDL_INIT_VIDEO) < 0 )
{
fprintf(stderr, "Could not initialize SDL: %s\n", SDL_GetError());
return -1;
}
atexit(SDL_Quit);
// screen = SDL_SetVideoMode(WIDTH, HEIGHT, 32, SDL_HWSURFACE|SDL_DOUBLEBUF|SDL_FULLSCREEN);
screen = SDL_SetVideoMode(WIDTH, HEIGHT, 32, SDL_HWSURFACE|SDL_DOUBLEBUF);
if( !screen )
{
fprintf(stderr, "Couldn't create a surface: %s\n", SDL_GetError());
return -1;
}
printf("Shadow of the Blitz %s\n", VERSION);
printf("http://www.glop.org/software/sotb\n");
printf("\n");
printf("Created SDL Surface: %x\n", screen);
printf("Resolution used: %dx%dx%d\n", screen->w, screen->h, screen->format->BytesPerPixel * 8);
herbe0 = SDL_LoadBMP("data/herbe0.bmp");
herbe1 = SDL_LoadBMP("data/herbe1.bmp");
herbe2 = SDL_LoadBMP("data/herbe2.bmp");
herbe3 = SDL_LoadBMP("data/herbe3.bmp");
herbe4 = SDL_LoadBMP("data/herbe4.bmp");
nuages0 = SDL_LoadBMP("data/nuages0.bmp");
SDL_SetColorKey(nuages0, SDL_SRCCOLORKEY, SDL_MapRGB(nuages0->format, 0xFF, 0x00, 0xFF) );
nuages1 = SDL_LoadBMP("data/nuages1.bmp");
SDL_SetColorKey(nuages1, SDL_SRCCOLORKEY, SDL_MapRGB(nuages1->format, 0xFF, 0x00, 0xFF) );
nuages2 = SDL_LoadBMP("data/nuages2.bmp");
SDL_SetColorKey(nuages2, SDL_SRCCOLORKEY, SDL_MapRGB(nuages2->format, 0xFF, 0x00, 0xFF) );
nuages3 = SDL_LoadBMP("data/nuages3.bmp");
SDL_SetColorKey(nuages3, SDL_SRCCOLORKEY, SDL_MapRGB(nuages3->format, 0xFF, 0x00, 0xFF) );
nuages4 = SDL_LoadBMP("data/nuages4.bmp");
SDL_SetColorKey(nuages4, SDL_SRCCOLORKEY, SDL_MapRGB(nuages4->format, 0xFF, 0x00, 0xFF) );
barriere = SDL_LoadBMP("data/barriere.bmp");
SDL_SetColorKey(barriere, SDL_SRCCOLORKEY, SDL_MapRGB(barriere->format, 0xFF, 0x00, 0xFF) );
montagnes = SDL_LoadBMP("data/montagnes.bmp");
SDL_SetColorKey(montagnes, SDL_SRCCOLORKEY, SDL_MapRGB(montagnes->format, 0xFF, 0x00, 0xFF) );
lune = SDL_LoadBMP("data/lune.bmp");
SDL_SetColorKey(lune, SDL_SRCCOLORKEY, SDL_MapRGB(lune->format, 0xFF, 0x00, 0xFF) );
while(!exitkey)
{
/* Lock the screen, if needed */
if(SDL_MUSTLOCK(screen)) {
if(SDL_LockSurface(screen) < 0)
return 0;
}
//SDL_FillRect( screen, NULL, SDL_MapRGB(screen->format,0,0,0) );
DrawSky();
DrawSprite( lune, 184, 16);
DrawPlane( montagnes, iScroll, (float) 1, 97);
DrawPlane( herbe0, iScroll, (float) 2, 170);
DrawPlane( herbe1, iScroll, (float) 3, 172);
DrawPlane( herbe2, iScroll, (float) 4, 175);
DrawPlane( herbe3, iScroll, (float) 5, 182);
DrawPlane( herbe4, iScroll, (float) 6, 189);
DrawPlane( barriere, iScroll, (float) 7, 179);
DrawPlane( nuages0, iScroll, (float) 2, 0);
DrawPlane( nuages1, iScroll, (float) 1, 22);
DrawPlane( nuages2, iScroll, (float) 1/2, 63);
DrawPlane( nuages3, iScroll, (float) 1/3, 82);
DrawPlane( nuages4, iScroll, (float) 1/4, 91);
/* Ulock the screen, if needed */
if(SDL_MUSTLOCK(screen)) {
SDL_UnlockSurface(screen);
}
SDL_Flip( screen );
SDL_Delay(TimeLeft());
//iScroll = (iScroll + 1) % (WIDTH * 2);
iScroll++;
//printf("Scroll : %d\n", iScroll );
// events
while(SDL_PollEvent(&event))
{
switch(event.type)
{
case SDL_QUIT:
exitkey = 1;
printf("Got quit event, exiting.\n");
break;
case SDL_KEYDOWN:
switch(event.key.keysym.sym)
{
case SDLK_ESCAPE:
printf("ESC key hit, exiting.\n");
exitkey = 1;
break;
case SDLK_f:
printf("switching fullscreen\n");
SDL_WM_ToggleFullScreen(screen);
break;
}
}
}
}
return 0;
}
]]>