#include "defs.h"


/* if (t=1) return(1) if chip c will not fit in socket b.
 * if (t=0) expand socket b to take chip c
 * if (t=2) shrink socket b down to original size
 */

expand(b, c, t)
	SKT b; 
	CHP c; 
	INT t;
{
	INT hix, lox, hiy, loy, del, nudx, nudy;
	REG SKT s;

	hix = b->x + c->dx; 
	lox = b->x;
	hiy = b->y + c->dy; 
	loy = b->y;
	nudx = b->dx; 
	nudy = b->dy;
	scanboard(s)
	{
		if (s == b) continue;
		if ((s->x >= lox) && (s->x < hix)
		    && (s->y >= loy) && (s->y < hiy))
		{
			if (t == 0) s->block = b;
			else if (t == 2) s->block = 0;
			else if (s->sktchp || (s->block && s->block != b))
				return(1);
			del = s->dx + s->x - b->x;
			if (del > nudx) nudx = del;
			del = s->dy + s->y - b->y;
			if (del > nudy) nudy = del;
		}
	}
	/*
		if (t == 0)
			{
			b->dx = nudx;
			b->dy = nudy;
			}
		else if ((nudx < c->dx) || (nudy < c->dy))
			return(1);
	*/
	return(0);
}