Cube  Diff

void
calclight()
{
	loop(x, ssize) loop(y, ssize)
	{
		sqr *s = S(x, y);
		s->r = s->g = s->b = 10;
	};


	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;

void
cleardlights()
{
	while (!dlights.empty()) {
		block *backup = dlights.pop();
		blockpaste(*backup);
		free(backup);
	};
};



void
dodynlight(vec &vold, vec &v, int reach, int strength, dynent *owner)
{
	if (!reach)
		reach = dynlight;
	if (owner->monsterstate)

	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 *
blockcopy(block &s)
{
	block *b = (block *)alloc(sizeof(block) + s.xs * s.ys * sizeof(sqr));
	*b = s;
	sqr *q = (sqr *)(b + 1);
	for (int x = s.x; x < s.xs + s.x; x++)
		for (int y = s.y; y < s.ys + s.y; y++)
			*q++ = *S(x, y);
	return b;
};


void
blockpaste(block &b)
{
	sqr *q = (sqr *)((&b) + 1);
	for (int x = b.x; x < b.xs + b.x; x++)
		for (int y = b.y; y < b.ys + b.y; y++)
			*S(x, y) = *q++;
	remipmore(b);
};