rimworld-font-replacer/Source/FontPatches.cs

using HarmonyLib;
using System.Reflection;
using Verse;
using UnityEngine;
using System;
using System.Collections.Generic;
using System.Linq;
using RimWorld.Planet;
using TMPro;

namespace raptureparty.RimWorldFontReplacer
{
    [HarmonyPatch]
    static class Text_CurFontStyle_Patch
    {
        [HarmonyPatch(typeof(Text), nameof(Text.CurFontStyle), MethodType.Getter)]
        public static bool Prefix(ref GUIStyle __result)
        {
            if (CustomGUIStyles.fontStyles == null)
            {
                CustomGUIStyles.Create();
            }
            GUIStyle guistyle;
            switch (Text.Font)
            {
                case GameFont.Tiny:
                    guistyle = CustomGUIStyles.fontStyles[0];
                    break;
                case GameFont.Small:
                    guistyle = CustomGUIStyles.fontStyles[1];
                    break;
                default:
                case GameFont.Medium:
                    guistyle = CustomGUIStyles.fontStyles[2];
                    break;
            }
            guistyle.alignment = Text.Anchor;
            guistyle.wordWrap = Text.WordWrap;
            __result = guistyle;

            return false;
        }
    }

    [HarmonyPatch]
    static class Text_CurTextFieldStyle_Patch
    {
        [HarmonyPrefix]
        [HarmonyPatch(typeof(Text), nameof(Text.CurTextFieldStyle), MethodType.Getter)]
        static bool Prefix(ref GUIStyle __result)
        {
            if (CustomGUIStyles.fontStyles == null)
            {
                CustomGUIStyles.Create();
            }
            GUIStyle guistyle;
            switch (Text.Font)
            {
                case GameFont.Tiny:
                    guistyle = CustomGUIStyles.textFieldStyles[0];
                    break;
                case GameFont.Small:
                    guistyle = CustomGUIStyles.textFieldStyles[1];
                    break;
                default:
                case GameFont.Medium:
                    guistyle = CustomGUIStyles.textFieldStyles[2];
                    break;
            }
            __result = guistyle;

            return false;
        }
    }

    [HarmonyPatch]
    static class Text_CurTextAreaStyle_Patch
    {
        [HarmonyPatch(typeof(Text), nameof(Text.CurTextAreaStyle), MethodType.Getter)]
        static bool Prefix(ref GUIStyle __result)
        {
            if (CustomGUIStyles.fontStyles == null)
            {
                CustomGUIStyles.Create();
            }
            GUIStyle guistyle;
            switch (Text.Font)
            {
                case GameFont.Tiny:
                    guistyle = CustomGUIStyles.textAreaStyles[0];
                    break;
                case GameFont.Small:
                    guistyle = CustomGUIStyles.textAreaStyles[1];
                    break;
                default:
                case GameFont.Medium:
                    guistyle = CustomGUIStyles.textAreaStyles[2];
                    break;
            }
            __result = guistyle;

            return false;
        }
    }


    [HarmonyPatch]
    static class Text_CurTextAreaReadOnlyStyle_Patch
    {
        [HarmonyPatch(typeof(Text), nameof(Text.CurTextAreaReadOnlyStyle), MethodType.Getter)]
        static bool Prefix(ref GUIStyle __result)
        {
            if (CustomGUIStyles.fontStyles == null)
            {
                CustomGUIStyles.Create();
            }
            GUIStyle guistyle;
            switch (Text.Font)
            {
                case GameFont.Tiny:
                    guistyle = CustomGUIStyles.textAreaReadOnlyStyles[0];
                    break;
                case GameFont.Small:
                    guistyle = CustomGUIStyles.textAreaReadOnlyStyles[1];
                    break;
                default:
                case GameFont.Medium:
                    guistyle = CustomGUIStyles.textAreaReadOnlyStyles[2];
                    break;
            }
            __result = guistyle;

            return false;
        }
    }

    [HarmonyPatch]
    static class WorldFeatureTextMesh_TextMeshLegacy_Patch
    {
        [HarmonyPatch(typeof(WorldFeatureTextMesh_Legacy), nameof(WorldFeatureTextMesh_Legacy.Init))]
        public static void Postfix(ref TextMesh ___textMesh)
        {
            Log.Message("Patching TextMesh init");
            ___textMesh.font = FontLoader.FontMedium;
        }
    }

    [HarmonyPatch]
    static class WorldFeatureTextMesh_TextMeshPro_Patch
    {
        [HarmonyPatch(typeof(WorldFeatureTextMesh_TextMeshPro), nameof(WorldFeatureTextMesh_TextMeshPro.Init))]
        public static void Postfix(ref TextMeshPro ___textMesh)
        {
            Log.Message("Patching TextMeshPro init");
            TMP_FontAsset asset = TMP_FontAsset.CreateFontAsset(FontLoader.FontPlanet);
            ___textMesh.font = asset;
            ___textMesh.UpdateFontAsset();
        }
    }
}