Recycle MeshQuad objects

Reduces client thread's RAM allocation rate from ~80 MB/s to ~20 MB/s.

1 files changed, 37 insertions, 0 deletions

diff --git a/src/main/java/makamys/neodymium/util/RecyclingList.java b/src/main/java/makamys/neodymium/util/RecyclingList.java
new file mode 100644
index 0000000..ea240bb
--- /dev/null
+++ b/src/main/java/makamys/neodymium/util/RecyclingList.java
@@ -0,0 +1,37 @@
+package makamys.neodymium.util;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Supplier;
+
+public class RecyclingList<T> {
+    
+    private Supplier<T> constructor;
+    
+    int nextIndex;
+    private List<T> list;
+    
+    public RecyclingList(Supplier<T> constructor) {
+        this.constructor = constructor;
+        this.list = new ArrayList<T>();
+    }
+    
+    public T get(int i) {
+        while(list.size() <= i) {
+            list.add(constructor.get());
+        }
+        return list.get(i);
+    }
+    
+    public T next() {
+        return get(nextIndex++);
+    }
+    
+    public void reset() {
+        nextIndex = 0;
+    }
+
+    public List<T> getAsList() {
+        return list.subList(0, nextIndex);
+    }
+}