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if (SOLID(s))
return;
x += stepx;
y += stepy;
l -= stepl;
stepl -= 25;
}
};
};
};
};
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if (SOLID(s))
return;
x += stepx;
y += stepy;
l -= stepl;
stepl -= 25;
}
}
} else // the old (white) light code, here for the few people with old
// video cards that don't support overbright
{
loopi(steps)
{
sqr *s = S(x >> PRECBITS, y >> PRECBITS);
int light = l >> PRECBITS;
if (light > s->r)
s->r = s->g = s->b = (uchar)light;
if (SOLID(s))
return;
x += stepx;
y += stepy;
l -= stepl;
}
}
}
void
calclightsource(persistent_entity &l)
{
int reach = l.attr1;
int sx = l.x - reach;
int ex = l.x + reach;
int sy = l.y - reach;
int ey = l.y + reach;
rndreset();
const float s = 0.8f;
for (float sx2 = (float)sx; sx2 <= ex; sx2 += s * 2) {
lightray(sx2, (float)sy, l);
lightray(sx2, (float)ey, l);
}
for (float sy2 = sy + s; sy2 <= ey - s; sy2 += s * 2) {
lightray((float)sx, sy2, l);
lightray((float)ex, sy2, l);
}
rndtime();
}
void
postlightarea(block &a) // median filter, smooths out random noise in light and
// makes it more mipable
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loopv(ents)
{
entity &e = ents[i];
if (e.type == LIGHT)
calclightsource(e);
}
block b = {1, 1, ssize - 2, ssize - 2};
postlightarea(b);
setvar(@"fullbright", 0);
}
VARP(dynlight, 0, 16, 32);
vector<block *> dlights;
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loopv(ents)
{
entity &e = ents[i];
if (e.type == LIGHT)
calclightsource(e);
}
block b = { 1, 1, ssize - 2, ssize - 2 };
postlightarea(b);
setvar(@"fullbright", 0);
}
VARP(dynlight, 0, 16, 32);
vector<block *> dlights;
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reach = reach / 2;
if (!reach)
return;
if (v.x < 0 || v.y < 0 || v.x > ssize || v.y > ssize)
return;
int creach = reach + 16; // dependant on lightray random offsets!
block b = {(int)v.x - creach, (int)v.y - creach, creach * 2 + 1,
creach * 2 + 1};
if (b.x < 1)
b.x = 1;
if (b.y < 1)
b.y = 1;
if (b.xs + b.x > ssize - 2)
b.xs = ssize - 2 - b.x;
if (b.ys + b.y > ssize - 2)
b.ys = ssize - 2 - b.y;
dlights.add(blockcopy(b)); // backup area before rendering in dynlight
persistent_entity l = {(short)v.x, (short)v.y, (short)v.z, (short)reach,
LIGHT, (uchar)strength, 0, 0};
calclightsource(l);
postlightarea(b);
}
// utility functions also used by editing code
block *
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reach = reach / 2;
if (!reach)
return;
if (v.x < 0 || v.y < 0 || v.x > ssize || v.y > ssize)
return;
int creach = reach + 16; // dependant on lightray random offsets!
block b = { (int)v.x - creach, (int)v.y - creach, creach * 2 + 1,
creach * 2 + 1 };
if (b.x < 1)
b.x = 1;
if (b.y < 1)
b.y = 1;
if (b.xs + b.x > ssize - 2)
b.xs = ssize - 2 - b.x;
if (b.ys + b.y > ssize - 2)
b.ys = ssize - 2 - b.y;
dlights.add(blockcopy(b)); // backup area before rendering in dynlight
persistent_entity l = { (short)v.x, (short)v.y, (short)v.z,
(short)reach, LIGHT, (uchar)strength, 0, 0 };
calclightsource(l);
postlightarea(b);
}
// utility functions also used by editing code
block *
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