From c45eca169f4a256d8b6e94a6b6ef199552f91c2d Mon Sep 17 00:00:00 2001
From: Jonas Blattgerste <jonas.blattgerste@gmail.com>
Date: Fri, 1 Dec 2023 14:04:40 +0100
Subject: [PATCH] Added some validation checks in preparation of adding
 Tridecimator

---
 .../Scripts/TrainARObjectConversionWindow.cs       | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/Assets/Editor/Scripts/TrainARObjectConversionWindow.cs b/Assets/Editor/Scripts/TrainARObjectConversionWindow.cs
index daf2373..554ec96 100644
--- a/Assets/Editor/Scripts/TrainARObjectConversionWindow.cs
+++ b/Assets/Editor/Scripts/TrainARObjectConversionWindow.cs
@@ -218,12 +218,22 @@ void OnGUI()
                 
                 //Calculate how much the mesh would be reduced by in percent
                 var simplificationPercentage = Math.Round((1 - (float)targetMeshPolygons / triangleCount) * 100, 2);
-                GUILayout.Label("Reduction: " + simplificationPercentage + "%");
+                var originalPolygonCount = originalMeshes.Sum(mesh => mesh.triangles.Length / 3);
+                if (targetMeshPolygons <= 0)
+                {
+                    targetMeshPolygons = 1;
+                }
+                else if (targetMeshPolygons >= originalPolygonCount)
+                {
+                    targetMeshPolygons = originalPolygonCount;
+                }
+                
+                GUILayout.Label("Reduction: " + simplificationPercentage + "% (" + targetMeshPolygons + "/" + originalPolygonCount +" polygons)" );
                 
                 //Simplify the mesh
                 if (GUILayout.Button(new GUIContent("Simplify")))
                 {
-                    //...
+                    //simplify "originalMeshes"!
                     
                     if(pivotWasCentered) //If the pivot was centered before, center it again
                         trainARObject.GetComponent<MeshFilter>().sharedMesh =