From b8f58b9cc76d7aafc42016525a711004efc9583c Mon Sep 17 00:00:00 2001
From: Daniel Mills <danielmillst@gmail.com>
Date: Fri, 4 Sep 2020 03:24:38 -0400
Subject: [PATCH] Low memory mode support

---
 .../java/com/volmit/iris/gen/atomics/AtomicMulticache.java   | 5 ++++-
 .../java/com/volmit/iris/gen/atomics/AtomicWorldData.java    | 4 ++--
 src/main/java/com/volmit/iris/util/ObjectResourceLoader.java | 2 +-
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/main/java/com/volmit/iris/gen/atomics/AtomicMulticache.java b/src/main/java/com/volmit/iris/gen/atomics/AtomicMulticache.java
index 1a2936bb1..f83b31170 100644
--- a/src/main/java/com/volmit/iris/gen/atomics/AtomicMulticache.java
+++ b/src/main/java/com/volmit/iris/gen/atomics/AtomicMulticache.java
@@ -3,6 +3,7 @@ package com.volmit.iris.gen.atomics;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.function.Supplier;
 
+import com.volmit.iris.Iris;
 import com.volmit.iris.IrisSettings;
 import com.volmit.iris.object.IrisBiome;
 import com.volmit.iris.object.IrisRegion;
@@ -44,7 +45,7 @@ public class AtomicMulticache
 		this.x.set(x);
 		this.z.set(z);
 
-		if(!IrisSettings.get().sharedCaching)
+		if(!IrisSettings.get().sharedCaching || Iris.lowMemoryMode)
 		{
 			drop();
 		}
@@ -268,5 +269,7 @@ public class AtomicMulticache
 		region.clear();
 		biome.clear();
 		rawBiome.clear();
+		carvedHeight.clear();
+		carvedHeightIgnoreWater.clear();
 	}
 }
diff --git a/src/main/java/com/volmit/iris/gen/atomics/AtomicWorldData.java b/src/main/java/com/volmit/iris/gen/atomics/AtomicWorldData.java
index df9030c07..99923df15 100644
--- a/src/main/java/com/volmit/iris/gen/atomics/AtomicWorldData.java
+++ b/src/main/java/com/volmit/iris/gen/atomics/AtomicWorldData.java
@@ -278,7 +278,7 @@ public class AtomicWorldData
 				break;
 			}
 
-			if(M.ms() - lastRegion.get(i) > 30000)
+			if(M.ms() - lastRegion.get(i) > (Iris.lowMemoryMode ? 15000 : 30000))
 			{
 				unloadRegions.add(i);
 				m++;
@@ -311,7 +311,7 @@ public class AtomicWorldData
 				break;
 			}
 
-			if(M.ms() - lastChunk.get(i) > 30000)
+			if(M.ms() - lastChunk.get(i) > (Iris.lowMemoryMode ? 8000 : 30000))
 			{
 				m++;
 				unloadChunks.add(i);
diff --git a/src/main/java/com/volmit/iris/util/ObjectResourceLoader.java b/src/main/java/com/volmit/iris/util/ObjectResourceLoader.java
index 2b0d1058a..7963f0221 100644
--- a/src/main/java/com/volmit/iris/util/ObjectResourceLoader.java
+++ b/src/main/java/com/volmit/iris/util/ObjectResourceLoader.java
@@ -31,7 +31,7 @@ public class ObjectResourceLoader extends ResourceLoader<IrisObject>
 	{
 		if(useFlip.flip())
 		{
-			unloadLast(60000 * 5);
+			unloadLast(Iris.lowMemoryMode ? 60000 : (60000 * 5));
 		}
 	}