Merge pull request #325 from CCraigen/mouse-slide-fix

Cap the mouse slide input properly to prevent players from exceeding the speed limit

GameMod/GameMod.csproj

@@ -104,6 +104,7 @@
     <Compile Include="AddOnLevelSort.cs" />
     <Compile Include="AmbientUnload.cs" />
     <Compile Include="AxisCountFix.cs" />
+    <Compile Include="MouseSlidingFix.cs" />
     <Compile Include="MPMatchInfo.cs" />
     <Compile Include="FramerateLimiter.cs" />
     <Compile Include="MPShips.cs" />

GameMod/MouseSlidingFix.cs

@@ -0,0 +1,45 @@
+using System.Collections.Generic;
+using Overload;
+using UnityEngine;
+using HarmonyLib;
+using System.Reflection.Emit;
+
+
+namespace GameMod
+{
+    [HarmonyPatch(typeof(PlayerShip), "FixedUpdateProcessControlsInternal")]
+    public static class MouseSlidingFix_PlayerShip_FixedUpdateProcessControlsInternal
+    {
+        /*
+         * 
+            zero.x *= (float)c_player.m_player_control_options.opt_mouse_sens_x * 0.01f;
+			zero.y *= (float)c_player.m_player_control_options.opt_mouse_sens_y * 0.01f;
+			zero.z *= (float)c_player.m_player_control_options.opt_mouse_sens_y * 0.01f;
+            ...
+			num4 += zero.x; -- becomes --> num4 = Mathf.Clamp(num4 + zero.x, -1f, 1f);
+			num3 += zero.y; -- becomes --> num4 = Mathf.Clamp(num3 + zero.y, -1f, 1f);
+			num5 += zero.z; -- becomes --> num4 = Mathf.Clamp(num5 + zero.z, -1f, 1f);
+         *
+         */
+
+        public static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstruction> codes)
+        {
+            int count = 0;
+            foreach (var code in codes)
+            {
+                if (code.opcode == OpCodes.Stloc_2 || code.opcode == OpCodes.Stloc_3 || (code.opcode == OpCodes.Stloc_S && ((LocalBuilder)code.operand).LocalIndex == 4))
+                {
+                    count++;
+
+                    if (count > 3 && count < 7)
+                    {
+                        yield return new CodeInstruction(OpCodes.Ldc_R4, -1f);
+                        yield return new CodeInstruction(OpCodes.Ldc_R4, 1f);
+                        yield return new CodeInstruction(OpCodes.Call, AccessTools.Method(typeof(Mathf), "Clamp", new System.Type[] { typeof(float), typeof(float), typeof(float) }));
+                    }                      
+                }
+                yield return code;
+            }
+        }
+    }
+}