From 60a28cea88e04de1d75b7f19915d06285cec7d76 Mon Sep 17 00:00:00 2001
From: wisplite <wisplitedev@gmail.com>
Date: Thu, 14 May 2026 09:43:49 -0500
Subject: [PATCH] visualize explored nodes (closed path)

---
 astar.go |  4 ++++
 main.go  | 12 ++++++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/astar.go b/astar.go
index eea8eaf..22c0267 100644
--- a/astar.go
+++ b/astar.go
@@ -128,6 +128,10 @@ func (a *AStar) GetGridTypes() []byte {
 	return a.gridTypes
 }
 
+func (a *AStar) GetClosedSet() []bool {
+	return a.closedSet
+}
+
 func (a *AStar) SetGScores(x int, y int, gScore float32) {
 	a.gScores[y*a.width+x] = gScore
 }
diff --git a/main.go b/main.go
index c11adb4..5697fb1 100644
--- a/main.go
+++ b/main.go
@@ -1,7 +1,6 @@
 package main
 
 import (
-	"fmt"
 	"image/color"
 	"strconv"
 	"strings"
@@ -537,7 +536,16 @@ func main() {
 				}
 			}
 			path := astar.CalculatePath(int(startPos.X), int(startPos.Y), int(endPos.X), int(endPos.Y))
-			fmt.Println(path)
+			closedSet := astar.GetClosedSet()
+			for i, closed := range closedSet {
+				if closed {
+					x := i % width
+					y := i / width
+					if x != int(startPos.X) || y != int(startPos.Y) {
+						rl.ImageDrawPixel(mapImage, int32(x), int32(y), rl.NewColor(0, 0, 255, 255))
+					}
+				}
+			}
 			for _, p := range path {
 				if p[0] != int(startPos.X) || p[1] != int(startPos.Y) { // we want to keep the start position green
 					rl.ImageDrawPixel(mapImage, int32(p[0]), int32(p[1]), rl.NewColor(255, 255, 0, 255))