From e64253a7ec67103e2d8b90a53832bc61d9587c18 Mon Sep 17 00:00:00 2001
From: NathanKell <nathankell@gmail.com>
Date: Mon, 23 Oct 2023 00:09:28 -0700
Subject: [PATCH] Patch resource panel. Use units, use SI, flip negative sign,
 account for warp

---
 Source/Harmony/ResourceItem.cs | 51 ++++++++++++++++++++++++++++++++++
 Source/RealismOverhaul.csproj  |  1 +
 Source/ResourceUnitInfo.cs     | 28 +++++++++++++++++--
 3 files changed, 77 insertions(+), 3 deletions(-)
 create mode 100644 Source/Harmony/ResourceItem.cs

diff --git a/Source/Harmony/ResourceItem.cs b/Source/Harmony/ResourceItem.cs
new file mode 100644
index 0000000000..ea306cb8a1
--- /dev/null
+++ b/Source/Harmony/ResourceItem.cs
@@ -0,0 +1,51 @@
+using HarmonyLib;
+using KSP.Localization;
+using KSP.UI.Screens;
+using System.Reflection.Emit;
+using System.Reflection;
+using System.Collections.Generic;
+
+namespace RealismOverhaul.Harmony
+{
+    [HarmonyPatch(typeof(ResourceItem))]
+    internal class PatchResourceItem
+    {
+        [HarmonyTranspiler]
+        [HarmonyPatch("FixedUpdate")]
+        internal static IEnumerable<CodeInstruction> Transpiler_FixedUpdate(IEnumerable<CodeInstruction> instructions)
+        {
+            List<CodeInstruction> code = new List<CodeInstruction>(instructions);
+            for (int i = 1; i < code.Count; ++i)
+            {
+                if (code[i].opcode == OpCodes.Call && (MethodInfo)code[i].operand == AccessTools.Method(typeof(UnityEngine.Time), "get_fixedDeltaTime"))
+                {
+                    code[i].operand = AccessTools.Method(typeof(TimeWarp), "get_fixedDeltaTime");
+                    break; // let the smoothing still occur in realtime
+                }
+            }
+
+            return code;
+        }
+
+        [HarmonyPrefix]
+        [HarmonyPatch("Update")]
+        internal static bool Prefix_Update(ResourceItem __instance)
+        {
+            int resID = __instance.resourceID;
+
+            __instance.resourceBar.value = (float)__instance.resourceValue;
+
+            __instance.amountText.text = "<color=#000000>" + ResourceUnits.PrintAmount(__instance.vesselResourceCurrent, resID, 5, __instance.vesselResourceCurrent > 100 ? "F0" : "F2") + "</color>";
+            __instance.maxText.text = "<color=#000000>" + ResourceUnits.PrintAmount(__instance.vesselResourceTotal, resID, 5, __instance.vesselResourceCurrent > 100 ? "F0" : "F2") + "</color>";
+
+            if (__instance.deltaSmoothed == 0f)
+                __instance.deltaText.text = "<color=#000000>(0)</color>";
+            else if (__instance.deltaSmoothed > 0f)
+                __instance.deltaText.text = "<color=#110000>(-" + ResourceUnits.PrintRatePerSecBare(-__instance.deltaSmoothed, resID, 3, "F2") + ")</color>";
+            else
+                __instance.deltaText.text = "<color=#000011>(" + ResourceUnits.PrintRatePerSecBare(-__instance.deltaSmoothed, resID, 3, "F2") + ")</color>";
+
+            return false;
+        }
+    }
+}
diff --git a/Source/RealismOverhaul.csproj b/Source/RealismOverhaul.csproj
index f4245c6e8c..f8aa1180b0 100644
--- a/Source/RealismOverhaul.csproj
+++ b/Source/RealismOverhaul.csproj
@@ -38,6 +38,7 @@
     <Compile Include="DebugTools\DebugDrawer.cs" />
     <Compile Include="DebugTools\DrawTools.cs" />
     <Compile Include="Harmony\ModuleEngines.cs" />
+    <Compile Include="Harmony\ResourceItem.cs" />
     <Compile Include="Harmony\ModuleRCS.cs" />
     <Compile Include="Harmony\ModuleResource.cs" />
     <Compile Include="ResourceUnitInfo.cs" />
diff --git a/Source/ResourceUnitInfo.cs b/Source/ResourceUnitInfo.cs
index e3a855052f..2dce098560 100644
--- a/Source/ResourceUnitInfo.cs
+++ b/Source/ResourceUnitInfo.cs
@@ -96,6 +96,29 @@ public static string PrintMassRate(double massFlow)
         {
             return massFlow < 1d ? KSPUtil.PrintSI(massFlow * 1000d * 1000d, "g") : KSPUtil.PrintSI(massFlow, "t");
         }
+
+        public static string PrintRatePerSecBare(double rate, int resID, int sigFigs = 3, string precision = "G2", bool longPrefix = false)
+        {
+            string unitRate = string.Empty;
+            bool useSI = false;
+            if (GetResourceUnitInfo(resID) is ResourceUnitInfo rui)
+            {
+                unitRate = rui.RateUnit;
+                rate  *= rui.MultiplierToUnit;
+                if (rui.UseHuman)
+                {
+                    useSI = false;
+                }
+                else
+                {
+                    useSI = true;
+                }
+            }
+            if (useSI)
+                return KSPUtil.PrintSI(rate, unitRate, sigFigs, longPrefix);
+            else
+                return rate.ToString(precision) + unitRate;
+        }
         
         public static string PrintRate(double rate, int resID, bool showFlowMode, ModuleResource res = null, Propellant p = null, bool showMass = false, int sigFigs = 3, bool longPrefix = false)
         {
@@ -168,13 +191,12 @@ public static string PrintRate(double rate, int resID, bool showFlowMode, Module
             return output;
         }
 
-        public static string PrintAmount(double amount, int resID, int sigFigs = 3, string precision = "G2", bool longPrefix = false)
+        public static string PrintAmount(double amount, int resID, int sigFigs = 3, string precision = "G2", bool preventSI = false, bool longPrefix = false)
         {
             string unit = string.Empty;
             if (GetResourceUnitInfo(resID) is ResourceUnitInfo rui)
             {
-
-                if (rui.UseHuman)
+                if (rui.UseHuman || preventSI)
                     unit = rui.AmountUnit;
                 else
                     return PrintSIAmount(amount, rui, sigFigs, longPrefix);