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bomberclone/src/gfx.c

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/* $Id: gfx.c,v 1.30 2004/01/25 02:21:01 stpohle Exp $ */
/* gfx.c */
#include "bomberclone.h"
#include "menu.h"
_gfx gfx;
#define __smalsizeX 12
void
gfx_load_players (int sx, int sy)
{
float sfkt,
ssfkt;
char filename[255];
int i,
j,
r,
g,
b;
SDL_Surface *tmpimage,
*tmpimage1;
sfkt = ((float) sx) / ((float) GFX_IMGSIZE);
ssfkt = ((float) __smalsizeX) / ((float) GFX_IMGSIZE);
/* loading the player images */
for (j = i = 0; i < MAX_PLAYERS; i++) {
sprintf (filename, "%s/player/player%d.png", bman.datapath, j);
j++;
tmpimage = IMG_Load (filename);
if (tmpimage == NULL) {
if (j == 0) { // try again with the first image, if this don't work give up.
printf ("Can't load image: %s\n", SDL_GetError ());
exit (1);
}
i--; // load the this image again
j = 0;
}
else {
/* load the game player image */
gfx.players[i].ani.h = sy * 2;
gfx.players[i].ani.w = (tmpimage->w / 4) * sfkt;
gfx.players[i].ani.frames = tmpimage->h / GFX_PLAYERIMGSIZE_Y;
tmpimage1 =
scale_image (tmpimage, gfx.players[i].ani.w * 4,
gfx.players[i].ani.frames * gfx.players[i].ani.h);
getRGBpixel (tmpimage1, 0, 0, &r, &g, &b);
SDL_SetColorKey (tmpimage1, SDL_SRCCOLORKEY, SDL_MapRGB (tmpimage1->format, r, g, b));
gfx.players[i].ani.image = SDL_DisplayFormat (tmpimage1);
SDL_FreeSurface (tmpimage1);
/* calculate the numbers of images for the animation */
gfx.players[i].offset.x = (sx - gfx.players[i].ani.w) / 2;
gfx.players[i].offset.y = -sy;
/* load the smal image */
gfx.players[i].smal_size.y = __smalsizeX * 2;
gfx.players[i].smal_size.x = (tmpimage->w / 4) * ssfkt;
tmpimage1 =
scale_image (tmpimage, gfx.players[i].smal_size.x * 4,
gfx.players[i].ani.frames * gfx.players[i].smal_size.y);
getRGBpixel (tmpimage1, 0, 0, &r, &g, &b);
SDL_SetColorKey (tmpimage1, SDL_SRCCOLORKEY, SDL_MapRGB (tmpimage1->format, r, g, b));
gfx.players[i].smal_image = SDL_DisplayFormat (tmpimage1);
SDL_FreeSurface (tmpimage1);
SDL_FreeSurface (tmpimage);
}
}
/* load the death image */
sprintf (filename, "%s/player/dead0.png", bman.datapath);
tmpimage = IMG_Load (filename);
if (tmpimage == NULL) {
/* no image found - set field clear */
printf ("Player Animation Could not be loaded (%s)\n", filename);
exit (1);
}
gfx.dead.frames = tmpimage->h / (2* GFX_IMGSIZE);
tmpimage1 =
scale_image (tmpimage, ((2 * sx * tmpimage->w) / (2 * GFX_IMGSIZE)),
gfx.dead.frames * (2 * sy));
getRGBpixel (tmpimage1, 0, 0, &r, &g, &b);
SDL_SetColorKey (tmpimage1, SDL_SRCCOLORKEY, SDL_MapRGB (tmpimage1->format, r, g, b));
gfx.dead.image = SDL_DisplayFormat (tmpimage1);
SDL_FreeSurface (tmpimage1);
SDL_FreeSurface (tmpimage);
/* load the illnessthing */
sprintf (filename, "%s/player/playersick.png", bman.datapath);
tmpimage = IMG_Load (filename);
if (tmpimage == NULL) {
printf ("Can't load image: %s\n", SDL_GetError ());
exit (1);
}
gfx.ill.frames = tmpimage->h / (2 * GFX_IMGSIZE);
tmpimage1 =
scale_image (tmpimage, (2 * sx * tmpimage->w) / (2 * GFX_IMGSIZE),
gfx.ill.frames * (2 * sy));
getRGBpixel (tmpimage1, 0, 0, &r, &g, &b);
SDL_SetColorKey (tmpimage1, SDL_SRCCOLORKEY, SDL_MapRGB (tmpimage1->format, r, g, b));
gfx.ill.image = SDL_DisplayFormat (tmpimage1);
SDL_FreeSurface (tmpimage);
SDL_FreeSurface (tmpimage1);
};
/* frees the player images */
void
gfx_free_players ()
{
int i;
for (i = 0; i < MAX_PLAYERS; i++) {
if (gfx.players[i].ani.image != NULL)
SDL_FreeSurface (gfx.players[i].ani.image);
gfx.players[i].ani.image = NULL;
if (gfx.players[i].smal_image != NULL)
SDL_FreeSurface (gfx.players[i].smal_image);
gfx.players[i].smal_image = NULL;
}
if (gfx.dead.image != NULL)
SDL_FreeSurface (gfx.dead.image);
if (gfx.ill.image != NULL)
SDL_FreeSurface (gfx.ill.image);
}
/* init the whole GFX Part */
void
gfx_init ()
{
if (gfx.fullscreen)
gfx.screen =
SDL_SetVideoMode (gfx.res.x, gfx.res.y, gfx.bpp,
SDL_SWSURFACE | SDL_DOUBLEBUF | SDL_HWACCEL | SDL_FULLSCREEN);
else
gfx.screen =
SDL_SetVideoMode (gfx.res.x, gfx.res.y, gfx.bpp,
SDL_SWSURFACE | SDL_DOUBLEBUF | SDL_HWACCEL);
if (gfx.screen == NULL) {
d_printf ("Unable to set video mode: %s\n", SDL_GetError ());
return;
}
SDL_ShowCursor (SDL_DISABLE);
gfx_blitupdaterectclear ();
gfx_loaddata ();
};
void
gfx_loaddata ()
{
int i, j;
int r,g,b;
char filename[255];
SDL_Surface *tmpimage,
*tmpimage1;
/* load the logo */
sprintf (filename, "%s/gfx/logo.png", bman.datapath);
tmpimage = IMG_Load (filename);
if (tmpimage == NULL) {
sprintf (bman.datapath, "data");
sprintf (filename, "%s/gfx/logo.png", bman.datapath);
tmpimage = IMG_Load (filename);
if (tmpimage == NULL) {
printf ("Can't load image: %s\n", SDL_GetError ());
exit (1);
}
}
tmpimage1 = scale_image (tmpimage, gfx.res.x, gfx.res.y);
SDL_FreeSurface (tmpimage);
SDL_SetColorKey (tmpimage1, SDL_SRCCOLORKEY, SDL_MapRGB (tmpimage1->format, 255, 255, 0));
gfx.logo = SDL_DisplayFormat (tmpimage1);
SDL_FreeSurface (tmpimage1);
font_load ();
/* load the menugraphics */
for (i = 0; i < 9; i++) {
sprintf (filename, "%s/gfx/menu%d.png", bman.datapath, i);
tmpimage = IMG_Load (filename);
if (tmpimage == NULL) {
printf ("Can't load image: %s\n", SDL_GetError ());
exit (1);
}
if (i == 0)
getRGBpixel (tmpimage, 0, 0, &r, &g, &b);
SDL_SetColorKey (tmpimage, SDL_SRCCOLORKEY, SDL_MapRGB (tmpimage->format, r,g,b));
menu.images[i] = SDL_DisplayFormat (tmpimage);
SDL_FreeSurface (tmpimage);
}
/* load menu buttongraphic */
for (j = 0; j < 3; j++)
for (i = 0; i < 3; i++) {
sprintf (filename, "%s/gfx/menubutton%d_%d.png", bman.datapath, j, i);
tmpimage = IMG_Load (filename);
if (tmpimage == NULL) {
printf ("Can't load image: %s\n", SDL_GetError ());
exit (1);
}
SDL_SetColorKey (tmpimage, SDL_SRCCOLORKEY, SDL_MapRGB (tmpimage->format, 255, 255, 255));
menu.buttonimages[j][i] = SDL_DisplayFormat (tmpimage);
SDL_FreeSurface (tmpimage);
}
/* load menu buttongraphic */
for (j = 0; j < 2; j++)
for (i = 0; i < 3; i++) {
sprintf (filename, "%s/gfx/menuentry%d_%d.png", bman.datapath, j, i);
tmpimage = IMG_Load (filename);
if (tmpimage == NULL) {
printf ("Can't load image: %s\n", SDL_GetError ());
exit (1);
}
SDL_SetColorKey (tmpimage, SDL_SRCCOLORKEY, SDL_MapRGB (tmpimage->format, 255, 255, 255));
menu.entryimages[j][i] = SDL_DisplayFormat (tmpimage);
SDL_FreeSurface (tmpimage);
}
/* load menu listgraphic */
for (j = 0; j < 2; j++)
for (i = 0; i < 9; i++) {
sprintf (filename, "%s/gfx/menulist%d_%d.png", bman.datapath, j, i);
tmpimage = IMG_Load (filename);
if (tmpimage == NULL) {
printf ("Can't load image: %s\n", SDL_GetError ());
exit (1);
}
SDL_SetColorKey (tmpimage, SDL_SRCCOLORKEY, SDL_MapRGB (tmpimage->format, 255, 255, 255));
menu.listimages[j][i] = SDL_DisplayFormat (tmpimage);
SDL_FreeSurface (tmpimage);
}
};
void
gfx_shutdown ()
{
int i, j;
for (i = 0; i < 9; i++) {
SDL_FreeSurface (menu.images[i]);
if (i < 3)
for (j = 0; j < 3; j++) {
SDL_FreeSurface (menu.buttonimages[j][i]);
if (j < 2) SDL_FreeSurface (menu.entryimages[j][i]);
}
for (j = 0; j < 2; j++)
SDL_FreeSurface (menu.listimages[j][i]);
}
SDL_FreeSurface (gfx.logo);
SDL_FreeSurface (gfx.menuselect.image);
gfx.screen = SDL_SetVideoMode (gfx.res.x, gfx.res.y, 16, SDL_HWSURFACE | SDL_DOUBLEBUF);
SDL_FreeSurface (gfx.screen);
font_free();
};
void
draw_logo ()
{
SDL_Rect dest;
dest.x = dest.y = 0;
dest.w = gfx.res.x;
dest.h = gfx.res.y;
SDL_BlitSurface (gfx.logo, NULL, gfx.screen, NULL);
gfx_blitupdaterectadd (&dest);
};
void
redraw_logo_shaded (int x, int y, int w, int h, int c)
{
SDL_Rect dest;
dest.w = w;
dest.h = h;
dest.x = x;
dest.y = y;
redraw_logo (x, y, w + 1, h + 1);
if (gfx_locksurface (gfx.screen))
return;
dest.h += dest.y;
dest.w += dest.x;
draw_shadefield (gfx.screen, &dest, c);
gfx_unlocksurface (gfx.screen);
};
void
redraw_logo (int x, int y, int w, int h)
{
SDL_Rect src,
dest;
dest.w = src.w = w;
dest.h = src.h = h;
dest.x = x;
dest.y = y;
src.x = x;
src.y = y;
SDL_BlitSurface (gfx.logo, &src, gfx.screen, &dest);
gfx_blitupdaterectadd (&dest);
};
void
shade_pixel (SDL_Surface * s, int x, int y, int c)
{
Uint32 p;
Uint8 r,
g,
b;
p = getpixel (s, x, y);
SDL_GetRGB (p, s->format, &r, &g, &b);
if (c > 0) {
if (((Sint16) r) + c < 256) {
r += c;
}
else
r = 255;
if (((Sint16) g) + c < 256) {
g += c;
}
else
g = 255;
if (((Sint16) b) + c < 256) {
b += c;
}
else
b = 255;
}
else {
if (((Sint16) r) + c > 0) {
r += c;
}
else
r = 0;
if (((Sint16) g) + c > 0) {
g += c;
}
else
g = 0;
if (((Sint16) b) + c > 0) {
b += c;
}
else
b = 0;
}
p = SDL_MapRGB (s->format, r, g, b);
putpixel (s, x, y, p);
};
int
gfx_locksurface (SDL_Surface * surface)
{
if (SDL_MUSTLOCK (surface))
if (SDL_LockSurface (surface) < 0) {
fprintf (stderr, "Can't lock screen: %s\n", SDL_GetError ());
return -1;
}
return 0;
};
void
gfx_unlocksurface (SDL_Surface * surface)
{
if (SDL_MUSTLOCK (surface)) {
SDL_UnlockSurface (surface);
}
};
void
draw_shadefield (SDL_Surface * s, SDL_Rect * rec, int c)
{
int x1,
x,
x2,
y1,
y;
if (rec->x > rec->w) {
x1 = rec->w;
x2 = rec->x;
}
else {
x2 = rec->w;
x1 = rec->x;
}
if (rec->y > rec->h) {
y = rec->h;
y1 = rec->y;
}
else {
y1 = rec->h;
y = rec->y;
}
for (; y <= y1; y++)
for (x = x1; x <= x2; x++)
shade_pixel (s, x, y, c);
};
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