wip patch for map boundary

IRTweaks/IRTweaks/IRTweaks.csproj

@@ -119,6 +119,7 @@
     <Compile Include="Modules\UI\BulkScrapping.cs" />
     <Compile Include="Modules\UI\CombatLog.cs" />
     <Compile Include="Modules\UI\CombatSaves.cs" />
+    <Compile Include="Modules\UI\MapBoundary.cs" />
     <Compile Include="Modules\UI\MechBayChanges.cs" />
     <Compile Include="Modules\UI\SkirmishDifficultyPanelRelabel.cs" />
     <Compile Include="Modules\UI\SkirmishFilter.cs" />

IRTweaks/IRTweaks/Modules/UI/MapBoundary.cs

@@ -0,0 +1,84 @@
+using BattleTech;
+using BattleTech.Designed;
+using Harmony;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using UnityEngine;
+
+namespace IRTweaks.Modules.UI
+{
+    [HarmonyPatch(typeof(EncounterLayerData), "GetEncounterBoundaryTexture")]
+    static class MapBoundary
+    {
+		// TODO: Add real conditional gate here.
+		static bool Prepare() => true;
+
+        static void Prefix(EncounterLayerData __instance, 
+			ref Texture2D ___encounterBoundaryTexture, EncounterBoundaryChunkGameLogic ___encounterBoundaryChunk)
+        {
+			// Override the default texture composition if it's not already been created. The vanilla method will then return it.
+			if (___encounterBoundaryTexture == null)
+			{
+				int mapBoundaryWidth = SplatMapInfo.mapBoundaryWidth;
+				//int num = 2048 - SplatMapInfo.mapBoundaryWidth;
+				int num = 2048 - (SplatMapInfo.mapBoundaryWidth * 2);
+				Mod.Log.Info?.Write($"Generating boundary texture with mapBoundaryWidth:{mapBoundaryWidth}  num: {num}");
+
+				// Recalculate the rectHolders for the encounter boundaries
+				__instance.CalculateEncounterBoundary();
+
+				if (___encounterBoundaryChunk != null && ___encounterBoundaryChunk.encounterBoundaryRectList.Count > 0)
+				{
+					___encounterBoundaryTexture = new Texture2D(512, 512, TextureFormat.ARGB32, mipChain: false);
+
+					// Initialize the map to a flat black
+					Color[] pixels = ___encounterBoundaryTexture.GetPixels();
+					for (int i = 0; i < pixels.Length; i++)
+					{
+						pixels[i] = Color.black;
+					}
+					___encounterBoundaryTexture.SetPixels(pixels);
+
+					// Iterate all the encounter boundaries
+					for (int rectIdx = 0; rectIdx < ___encounterBoundaryChunk.encounterBoundaryRectList.Count; rectIdx++)
+					{
+						Rect rect = ___encounterBoundaryChunk.encounterBoundaryRectList[rectIdx].rect;
+						int rectXOrigin = (int)rect.x;
+						int rectYOrigin = (int)rect.y;
+						Mod.Log.Info?.Write($"Texturing encounterBoundaryRect at idx: {rectIdx} with coordinates: {rectXOrigin}, {rectYOrigin} ");
+
+						for (int heightIdx = 0; (float)heightIdx < rect.height; heightIdx++)
+						{
+							for (int widthIdx = 0; (float)widthIdx < rect.width; widthIdx++)
+							{
+								int posX = widthIdx + 1024 + rectXOrigin;
+								int posY = heightIdx + 1024 + rectYOrigin;
+								if (mapBoundaryWidth < posX && posX < num && mapBoundaryWidth < posY && posY < num)
+								{
+									Mod.Log.Info?.Write($"Setting pixel at: {posX / 4}, {posY / 4} to white.");
+									___encounterBoundaryTexture.SetPixel(posX / 4, posY / 4, Color.white);
+								}
+							}
+						}
+					}
+					___encounterBoundaryTexture.Apply();
+
+					// Apply a shader (presumably that illuminates as you get closer?)
+					Material mat = new Material(Shader.Find("Hidden/BT-ConvertToSDF"));
+
+					// Blit the shader onto map and update mipmaps
+					RenderTexture temporary = RenderTexture.GetTemporary(___encounterBoundaryTexture.width, ___encounterBoundaryTexture.height, 0, RenderTextureFormat.ARGB32, RenderTextureReadWrite.Linear);
+					Graphics.Blit(___encounterBoundaryTexture, temporary, mat, 0);
+					RenderTexture.active = temporary;
+					//___encounterBoundaryTexture.ReadPixels(new Rect(0f, 0f, ___encounterBoundaryTexture.width, ___encounterBoundaryTexture.height), 0, 0);
+					___encounterBoundaryTexture.Apply(updateMipmaps: true, makeNoLongerReadable: false);
+
+					RenderTexture.active = null;
+				}
+			}
+		}
+    }
+}