Cache map mode outlines (#1047)

## Improvements

- Cached generation of map mode outlines to improve loading time

NewHorizons/Builder/ShipLog/MapModeBuilder.cs

@@ -1,14 +1,12 @@
 using NewHorizons.Components.ShipLog;
 using NewHorizons.External;
 using NewHorizons.External.Modules;
-using NewHorizons.External.Modules.VariableSize;
 using NewHorizons.Handlers;
 using NewHorizons.Utility;
 using NewHorizons.Utility.Files;
 using NewHorizons.Utility.OuterWilds;
 using NewHorizons.Utility.OWML;
 using OWML.ModHelper;
-using System;
 using System.Collections.Generic;
 using System.Linq;
 using UnityEngine;
@@ -195,10 +193,10 @@ namespace NewHorizons.Builder.ShipLog
             string outlinePath = body.Config.ShipLog?.mapMode?.outlineSprite;
 
             if (imagePath != null) image = ImageUtilities.GetTexture(body.Mod, imagePath);
-            if (image == null) image = AutoGenerateMapModePicture(body);
+            if (image == null) image = ImageUtilities.AutoGenerateMapModePicture(body);
 
             if (outlinePath != null) outline = ImageUtilities.GetTexture(body.Mod, outlinePath);
-            if (outline == null) outline = ImageUtilities.MakeOutline(image, Color.white, 10);
+            if (outline == null) outline = ImageUtilities.GetCachedOutlineOrCreate(body, image, imagePath);
 
             astroObject._imageObj = CreateImage(gameObject, image, body.Config.name + " Revealed", layer);
             astroObject._outlineObj = CreateImage(gameObject, outline, body.Config.name + " Outline", layer);
@@ -246,10 +244,10 @@ namespace NewHorizons.Builder.ShipLog
             string outlinePath = info.outlineSprite;
 
             if (imagePath != null) image = ImageUtilities.GetTexture(body.Mod, imagePath);
-            else image = AutoGenerateMapModePicture(body);
+            else image = ImageUtilities.AutoGenerateMapModePicture(body);
 
             if (outlinePath != null) outline = ImageUtilities.GetTexture(body.Mod, outlinePath);
-            else outline = ImageUtilities.MakeOutline(image, Color.white, 10);
+            else outline = ImageUtilities.GetCachedOutlineOrCreate(body, image, imagePath);
 
             Image revealedImage = CreateImage(detailGameObject, image, "Detail Revealed", parent.gameObject.layer).GetComponent<Image>();
             Image outlineImage = CreateImage(detailGameObject, outline, "Detail Outline", parent.gameObject.layer).GetComponent<Image>();
@@ -605,68 +603,6 @@ namespace NewHorizons.Builder.ShipLog
         }
         #endregion
 
-        private static Texture2D AutoGenerateMapModePicture(NewHorizonsBody body)
-        {
-            Texture2D texture;
-
-            if (body.Config.Star != null) texture = ImageUtilities.GetTexture(Main.Instance, "Assets/DefaultMapModeStar.png");
-            else if (body.Config.Atmosphere != null) texture = ImageUtilities.GetTexture(Main.Instance, "Assets/DefaultMapModNoAtmo.png");
-            else texture = ImageUtilities.GetTexture(Main.Instance, "Assets/DefaultMapModePlanet.png");
-
-            var color = GetDominantPlanetColor(body);
-            var darkColor = new Color(color.r / 3f, color.g / 3f, color.b / 3f);
-
-            texture = ImageUtilities.LerpGreyscaleImage(texture, color, darkColor);
-
-            return texture;
-        }
-
-        private static Color GetDominantPlanetColor(NewHorizonsBody body)
-        {
-            try
-            {
-                var starColor = body.Config?.Star?.tint;
-                if (starColor != null) return starColor.ToColor();
-
-                var atmoColor = body.Config.Atmosphere?.atmosphereTint;
-                if (body.Config.Atmosphere?.clouds != null && atmoColor != null) return atmoColor.ToColor();
-
-                if (body.Config?.HeightMap?.textureMap != null)
-                {
-                    try
-                    {
-                        var texture = ImageUtilities.GetTexture(body.Mod, body.Config.HeightMap.textureMap);
-                        var landColor = ImageUtilities.GetAverageColor(texture);
-                        if (landColor != null) return landColor;
-                    }
-                    catch (Exception) { }
-                }
-
-                var waterColor = body.Config.Water?.tint;
-                if (waterColor != null) return waterColor.ToColor();
-
-                var lavaColor = body.Config.Lava?.tint;
-                if (lavaColor != null) return lavaColor.ToColor();
-
-                var sandColor = body.Config.Sand?.tint;
-                if (sandColor != null) return sandColor.ToColor();
-
-                switch (body.Config?.Props?.singularities?.FirstOrDefault()?.type)
-                {
-                    case SingularityModule.SingularityType.BlackHole:
-                        return Color.black;
-                    case SingularityModule.SingularityType.WhiteHole:
-                        return Color.white;
-                }
-            }
-            catch (Exception)
-            {
-                NHLogger.LogWarning($"Something went wrong trying to pick the colour for {body.Config.name} but I'm too lazy to fix it.");
-            }
-
-            return Color.white;
-        }
-
         #region Replacement
         private static List<(NewHorizonsBody, ModBehaviour, MapModeInfo)> _mapModIconsToUpdate = new();
         public static void TryReplaceExistingMapModeIcon(NewHorizonsBody body, ModBehaviour mod, MapModeInfo info)

NewHorizons/External/Modules/ShipLogModule.cs

@@ -61,7 +61,7 @@ namespace NewHorizons.External.Modules
             public float offset;
 
             /// <summary>
-            /// The path to the sprite (.png/.jpg/.exr) to show when the planet is unexplored in map mode.
+            /// The path to the sprite (.png/.jpg/.exr) to show when the planet is unexplored in map mode. If empty, a texture will be created and cached based on the revealed sprite.
             /// </summary>
             public string outlineSprite;
 

NewHorizons/Handlers/InvulnerabilityHandler.cs

@@ -4,7 +4,7 @@ using UnityEngine.SceneManagement;
 
 namespace NewHorizons.Handlers
 {
-    internal class InvulnerabilityHandler
+    public static class InvulnerabilityHandler
     {
         /// <summary>
         /// Used in patches
@@ -32,8 +32,25 @@ namespace NewHorizons.Handlers
             }
         }
 
-        private static DeathManager GetDeathManager() => GameObject.FindObjectOfType<DeathManager>();
-        private static PlayerResources GetPlayerResouces() => GameObject.FindObjectOfType<PlayerResources>();
+        private static DeathManager _deathManager;
+        private static DeathManager GetDeathManager()
+        {
+            if (_deathManager == null)
+            {
+                _deathManager = GameObject.FindObjectOfType<DeathManager>();
+            }
+            return _deathManager;
+        }
+
+        private static PlayerResources _playerResources;
+        private static PlayerResources GetPlayerResouces()
+        {
+            if (_playerResources == null)
+            {
+                _playerResources = GameObject.FindObjectOfType<PlayerResources>();
+            }
+            return _playerResources;
+        }
 
         static InvulnerabilityHandler()
         {

NewHorizons/Schemas/body_schema.json

@@ -4746,7 +4746,7 @@
         },
         "outlineSprite": {
           "type": "string",
-          "description": "The path to the sprite (.png/.jpg/.exr) to show when the planet is unexplored in map mode."
+          "description": "The path to the sprite (.png/.jpg/.exr) to show when the planet is unexplored in map mode. If empty, a texture will be created and cached based on the revealed sprite."
         },
         "remove": {
           "type": "boolean",

NewHorizons/Utility/Files/ImageUtilities.cs

@@ -1,9 +1,12 @@
 using NewHorizons.Builder.Props;
+using NewHorizons.External;
+using NewHorizons.External.Modules.VariableSize;
 using NewHorizons.Utility.OWML;
 using OWML.Common;
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using UnityEngine;
 
 namespace NewHorizons.Utility.Files
@@ -257,7 +260,7 @@ namespace NewHorizons.Utility.Files
             return texture;
         }
 
-        public static Texture2D MakeOutline(Texture2D texture, Color color, int thickness)
+        private static Texture2D MakeOutline(Texture2D texture, Color color, int thickness)
         {
             var key = $"{texture.name} > outline {color} {thickness}";
             if (_textureCache.TryGetValue(key, out var existingTexture)) return (Texture2D)existingTexture;
@@ -499,5 +502,119 @@ namespace NewHorizons.Utility.Files
             sprite.name = texture.name;
             return sprite;
         }
+
+        public static Texture2D GetCachedOutlineOrCreate(NewHorizonsBody body, Texture2D original, string originalPath)
+        {
+            if (string.IsNullOrEmpty(originalPath))
+            {
+                Texture2D defaultTexture = null;
+                if (body.Config.Star != null)
+                {
+                    defaultTexture = ImageUtilities.GetTexture(Main.Instance, "Assets/DefaultMapModeStarOutline.png");
+                }
+                else if (body.Config.Atmosphere != null)
+                {
+                    defaultTexture = ImageUtilities.GetTexture(Main.Instance, "Assets/DefaultMapModNoAtmoOutline.png");
+                }
+                else
+                {
+                    defaultTexture = ImageUtilities.GetTexture(Main.Instance, "Assets/DefaultMapModePlanetOutline.png");
+                }
+
+                return defaultTexture;
+            }
+            else
+            {
+                var cachedPath = Path.Combine(body.Mod.ModHelper.Manifest.ModFolderPath, $"TextureCache_{Main.Instance.CurrentStarSystem}", originalPath);
+                var outlineTexture = ImageUtilities.GetTexture(body.Mod, cachedPath);
+
+                if (outlineTexture == null)
+                {
+                    NHLogger.LogVerbose($"Caching outline to {cachedPath}");
+
+                    var newTexture = ImageUtilities.MakeOutline(original, Color.white, 10);
+
+                    Directory.CreateDirectory(Path.GetDirectoryName(cachedPath));
+                    File.WriteAllBytes(cachedPath, newTexture.EncodeToPNG());
+
+                    return newTexture;
+                }
+                else
+                {
+                    return outlineTexture;
+                }
+            }
+        }
+
+        public static Texture2D AutoGenerateMapModePicture(NewHorizonsBody body)
+        {
+            Texture2D texture;
+
+            if (body.Config.Star != null)
+            {
+                texture = ImageUtilities.GetTexture(Main.Instance, "Assets/DefaultMapModeStar.png");
+            }
+            else if (body.Config.Atmosphere != null)
+            {
+                texture = ImageUtilities.GetTexture(Main.Instance, "Assets/DefaultMapModNoAtmo.png");
+            }
+            else
+            {
+                texture = ImageUtilities.GetTexture(Main.Instance, "Assets/DefaultMapModePlanet.png");
+            }
+
+            var color = GetDominantPlanetColor(body);
+            var darkColor = new Color(color.r / 3f, color.g / 3f, color.b / 3f);
+
+            texture = ImageUtilities.LerpGreyscaleImage(texture, color, darkColor);
+
+            return texture;
+        }
+
+        private static Color GetDominantPlanetColor(NewHorizonsBody body)
+        {
+            try
+            {
+                var starColor = body.Config?.Star?.tint;
+                if (starColor != null) return starColor.ToColor();
+
+                var atmoColor = body.Config.Atmosphere?.atmosphereTint;
+                if (body.Config.Atmosphere?.clouds != null && atmoColor != null) return atmoColor.ToColor();
+
+                if (body.Config?.HeightMap?.textureMap != null)
+                {
+                    try
+                    {
+                        var texture = ImageUtilities.GetTexture(body.Mod, body.Config.HeightMap.textureMap);
+                        var landColor = ImageUtilities.GetAverageColor(texture);
+                        if (landColor != null) return landColor;
+                    }
+                    catch (Exception) { }
+                }
+
+                var waterColor = body.Config.Water?.tint;
+                if (waterColor != null) return waterColor.ToColor();
+
+                var lavaColor = body.Config.Lava?.tint;
+                if (lavaColor != null) return lavaColor.ToColor();
+
+                var sandColor = body.Config.Sand?.tint;
+                if (sandColor != null) return sandColor.ToColor();
+
+                switch (body.Config?.Props?.singularities?.FirstOrDefault()?.type)
+                {
+                    case SingularityModule.SingularityType.BlackHole:
+                        return Color.black;
+                    case SingularityModule.SingularityType.WhiteHole:
+                        return Color.white;
+                }
+            }
+            catch (Exception)
+            {
+                NHLogger.LogWarning($"Something went wrong trying to pick the colour for {body.Config.name} but I'm too lazy to fix it.");
+            }
+
+            return Color.white;
+        }
     }
 }