Better resize handling.
 [rsc] --rw-rw-r-- M 140560 rsc sys 6471 Nov  1 08:53 sys/src/games/memo.c
	/n/sourcesdump/2005/1101/plan9/sys/src/games/memo.c:4,9 - 
	/n/sourcesdump/2005/1102/plan9/sys/src/games/memo.c:4,14
	  #include <draw.h>
	  #include <event.h>
	  
	+ enum { 
	+ 	Facesize = 48 
	+ };
	+ 
	+ 
	  void memoinit(void);
	  void redraw(void);
	  void eresized(int);
	/n/sourcesdump/2005/1101/plan9/sys/src/games/memo.c:180,189 - 
	/n/sourcesdump/2005/1102/plan9/sys/src/games/memo.c:185,203
	  void
	  eresized(int new)
	  {
	+ 	double sq;
	+ 	Point p;
	+ 
	  	if(new && getwindow(display, Refnone) < 0){
	  		fprint(2, "can't reattach to window");
	  		exits("resized");
	  	}
	+ 
	+ 	sq = sqrt(level);
	+ 	p = Pt(Dx(screen->r)+8, Dy(screen->r)+8);
	+ 	if(!new || !eqpt(p, Pt(Facesize*sq+sq*4+17, Facesize*sq+sq*4+17)))
	+ 		resize(Facesize*sq+sq*4+17);
	+ 
	  	allocblocks();
	  	draw(screen, screen->r, back, nil, ZP);
	  	redraw();
	/n/sourcesdump/2005/1101/plan9/sys/src/games/memo.c:192,198 - 
	/n/sourcesdump/2005/1102/plan9/sys/src/games/memo.c:206,212
	  void
	  redraw(void)
	  {
	- 	int i, nx, ny;
	+ 	int i;
	  	Rectangle r;
	  	Point p;
	  
	/n/sourcesdump/2005/1101/plan9/sys/src/games/memo.c:290,298 - 
	/n/sourcesdump/2005/1102/plan9/sys/src/games/memo.c:304,309
	  	return i;
	  }
	  
	- enum { 
	- 	Facesize = 48 };
	- 
	  void
	  allocblocks(void)
	  {
	/n/sourcesdump/2005/1101/plan9/sys/src/games/memo.c:300,306 - 
	/n/sourcesdump/2005/1102/plan9/sys/src/games/memo.c:311,316
	  	ushort i, x, y, sq;
	  
	  	sq = sqrt(level);
	- 	resize(Facesize*sq+sq*4+17);
	  	r = insetrect(screen->r, 5);
	  	r.max.x = r.min.x+Facesize*sq+sq*4-1;
	  	r.max.y = r.min.y+Facesize*sq+sq*4-1;