//0,200,200 is nice cyan
//draws an open rectangle
void
rect_open (iImage * dest, int x, int y, int end_x, int end_y, int r, int g,
int b)
{
int i, j;
//top bar
j = y;
for (i = x; i < end_x + 1; i++)
{
setred (dest, i, j, r);
setgreen (dest, i, j, g);
setblue (dest, i, j, b);
setalpha (dest, i, j, 255);
}
//bottom bar
j = end_y;
for (i = x; i < end_x + 1; i++)
{
setred (dest, i, j, r);
setgreen (dest, i, j, g);
setblue (dest, i, j, b);
setalpha (dest, i, j, 255);
}
i = x;
for (j = y; j < end_y + 1; j++)
{
setred (dest, i, j, r);
setgreen (dest, i, j, g);
setblue (dest, i, j, b);
setalpha (dest, i, j, 255);
}
i = end_x;
for (j = y; j < end_y + 1; j++)
{
setred (dest, i, j, r);
setgreen (dest, i, j, g);
setblue (dest, i, j, b);
setalpha (dest, i, j, 255);
}
}
//This Blit conserves the alpha, Blit_merge blends the alphaed color in with background.
void
blit (iImage * source, iImage * dest, int source_startx, int source_starty,
int destx, int desty, int source_endx, int source_endy)
{
int x;
int y;
int r, g, b;
int i, j;
int a;
x = dest->GetWidth ();
y = dest->GetHeight ();
if (source_endx + destx - source_startx >= x)
source_endx = x - destx + source_startx;
if (source_endy + desty - source_starty >= y)
source_endy = y - desty + source_starty;
i = 0;
j = 0;
for (x = source_startx; x < source_endx; x++)
{
for (y = source_starty; y < source_endy; y++)
{
r = getred (source, x, y);
g = getgreen (source, x, y);
b = getblue (source, x, y);
a = getalpha (source, x, y);
setred (dest, i + destx, j + desty, r);
setgreen (dest, i + destx, j + desty, g);
setblue (dest, i + destx, j + desty, b);
setalpha (dest, i + destx, j + desty, a);
j++;
}
j = 0;
i++;
}
}
void
allocimages(void)
{
Rectangle one = Rect(0, 0, 1, 1);
selected = eallocimage(one, 1, RGBA32, setalpha(DPalebluegreen, 0x5f));
litbrdr = eallocimage(one, 1, RGBA32, DGreen);
img = eallocimage(Rect(0, 0, Sizex, Sizey), 0,
defchan? defchan: screen->chan, DBlack);
textcol = eallocimage(one, 1, RGBA32, DWhite);
background = eloadfile(defbackgr);
replclipr(background, 1, img->r);
mask = eloadfile(Mask);
gameover = eloadfile(Gameover);
tileset = eloadfile(deftileset);
}
void
clear_image (iImage * dest)
{
int i, j;
for (i = 0; i < dest->GetWidth (); i++)
for (j = 0; j < dest->GetHeight (); j++)
{
setred (dest, i, j, 0);
setgreen (dest, i, j, 0);
setblue (dest, i, j, 0);
setalpha (dest, i, j, 0);
}
}
//draws a rectangle_filled with colors r,g,b
void
rect (iImage * dest, int x, int y, int end_x, int end_y, int r, int g, int b)
{
int i, j;
//float bright;
//int r3,g3,b3;
for (i = x; i < end_x + 1; i++)
for (j = y; j < end_y + 1; j++)
{
setred (dest, i, j, r);
setgreen (dest, i, j, g);
setblue (dest, i, j, b);
setalpha (dest, i, j, 255);
}
}
ulong
tkrgba(int r, int g, int b, int a)
{
ulong p;
if(r < 0)
r = 0;
else if(r > 255)
r = 255;
if(g < 0)
g = 0;
else if(g > 255)
g = 255;
if(b < 0)
b = 0;
else if(b > 255)
b = 255;
p = (r<<24)|(g<<16)|(b<<8)|0xFF;
if(a == 255)
return p;
return setalpha(p, a);
}
void
blit_transparent (iImage * source, iImage * dest, int source_startx,
int source_starty, int destx, int desty, int source_endx,
int source_endy, int r0, int g0, int b0, int range)
{
int x;
int y;
int r, g, b;
int i, j;
int r2, g2, b2;
x = dest->GetWidth ();
y = dest->GetHeight ();
if (source_endx + destx - source_startx >= x)
source_endx = x - destx + source_startx;
if (source_endy + desty - source_starty >= y)
source_endy = y - desty + source_starty;
i = 0;
j = 0;
for (x = source_startx; x < source_endx; x++)
{
for (y = source_starty; y < source_endy; y++)
{
r = getred (source, x, y);
g = getgreen (source, x, y);
b = getblue (source, x, y);
r2 = abs (r0 - r);
g2 = abs (g0 - g);
b2 = abs (b0 - b);
if (r2 < range && g2 < range && b2 < range)
{
r = r0;
setalpha (dest, i + destx, j + desty, 0);
}
else
{
setred (dest, i + destx, j + desty, r);
setgreen (dest, i + destx, j + desty, g);
setblue (dest, i + destx, j + desty, b);
setalpha (dest, i + destx, j + desty, 255);
}
j++;
}
j = 0;
i++;
}
}
