Add indigo support to custom block textures

src/main/kotlin/moe/nea/firmament/Firmament.kt

@@ -33,6 +33,7 @@ import kotlinx.coroutines.plus
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.decodeFromStream
 import kotlin.coroutines.EmptyCoroutineContext
+import net.minecraft.client.render.chunk.SectionBuilder
 import net.minecraft.command.CommandRegistryAccess
 import net.minecraft.util.Identifier
 import moe.nea.firmament.commands.registerFirmamentCommand
@@ -112,6 +113,8 @@ object Firmament {
         ClientTickEvents.END_CLIENT_TICK.register(ClientTickEvents.EndTick { instance ->
             TickEvent.publish(TickEvent(tick++))
         })
+        // TODO: remove me
+        Class.forName(SectionBuilder::class.java.name)
         IDataHolder.registerEvents()
         RepoManager.initialize()
         SBData.init()

src/main/kotlin/moe/nea/firmament/features/texturepack/CustomBlockTextures.kt

@@ -157,7 +157,10 @@ object CustomBlockTextures {
         currentIslandReplacements = replacements
         if (lastReplacements != replacements) {
             MC.nextTick {
-                MC.worldRenderer.reload()
+                MC.worldRenderer.chunks?.chunks?.forEach {
+                    // false schedules rebuilds outside a 27 block radius to happen async
+                    it.scheduleRebuild(false)
+                }
             }
         }
     }
@@ -259,6 +262,10 @@ object CustomBlockTextures {
         return BakedReplacements(map.mapValues { LocationReplacements(it.value) })
     }
 
+    @JvmStatic
+    fun patchIndigo(orig: BakedModel, pos: BlockPos, state: BlockState): BakedModel {
+        return getReplacementModel(state, pos) ?: orig
+    }
 
     @Subscribe
     fun onStart(event: FinalizeResourceManagerEvent) {