shithub: asif

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drw: draw pathfinding state

--- a/path/drw.c

+++ b/path/drw.c

@@ -85,6 +85,7 @@

 {

 	Rectangle r;

 	Node *n;

+	Image *c;

 	draw(view, view->r, col[Cfree], nil, ZP);

 	r = viewr;

@@ -99,13 +100,26 @@

 		line(view, r.min, r.max, 0, 0, 0, col[Cgrid], ZP);

 		r.min.y += Nodesz;

 	}

-	for(n=map; n<map+mapwidth*mapheight; n++)

-		if(n->blocked){

-			r.min.x = (n - map) % mapwidth * Nodesz + 1;

-			r.min.y = (n - map) / mapwidth * Nodesz + 1;

-			r.max = addpt(r.min, Pt(Nodesz-1, Nodesz-1));

-			draw(view, r, col[Cblocked], nil, ZP);

-		}

+	for(n=map; n<map+mapwidth*mapheight; n++){

+		r.min.x = (n - map) % mapwidth * Nodesz + 1;

+		r.min.y = (n - map) / mapwidth * Nodesz + 1;

+		r.max = addpt(r.min, Pt(Nodesz-1, Nodesz-1));

+		if(n->blocked)

+			c = col[Cblocked];

+		else if(n == start)

+			c = col[Cstart];

+		else if(n == goal)

+			c = col[Cgoal];

+		else if(n->to != nil)

+			c = col[Cpath];

+		else if(n->closed)

+			c = col[Cclosed];

+		else if(n->open)

+			c = col[Copen];

+		else

+			continue;

+		draw(view, r, c, nil, ZP);

+	}

 }

 static void

@@ -148,7 +162,7 @@

 	col[Cfree] = eallocimage(Rect(0,0,1,1), 1, 0x777777ff);

 	col[Copen] = eallocimage(Rect(0,0,1,1), 1, 0x00ccccff);

 	col[Cclosed] = eallocimage(Rect(0,0,1,1), 1, 0x0000ccff);

-	col[Cpath] = eallocimage(Rect(0,0,1,1), 1, 0x777777ff);

+	col[Cpath] = eallocimage(Rect(0,0,1,1), 1, 0xcccc00ff);

 	col[Cstart] = eallocimage(Rect(0,0,1,1), 1, 0x00cc00ff);

 	col[Cgoal] = eallocimage(Rect(0,0,1,1), 1, 0xcc0000ff);

 	resetdrw();