1 files changed, 50 insertions, 0 deletions
diff --git a/src/main/java/shcm/shsupercm/fabric/citresewn/cit/CITCache.java b/src/main/java/shcm/shsupercm/fabric/citresewn/cit/CITCache.java
new file mode 100644
index 0000000..5fc6f5a
--- /dev/null
+++ b/src/main/java/shcm/shsupercm/fabric/citresewn/cit/CITCache.java
@@ -0,0 +1,50 @@
+package shcm.shsupercm.fabric.citresewn.cit;
+
+import shcm.shsupercm.fabric.citresewn.config.CITResewnConfig;
+
+import java.lang.ref.WeakReference;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Function;
+
+public abstract class CITCache<T extends CITType> {
+    public long lastCachedStamp = 0;
+
+    public static class Single<T extends CITType> extends CITCache<T> {
+        public WeakReference<CIT<T>> cit = null;
+        public final Function<CITContext, CIT<T>> realtime;
+
+        public Single(Function<CITContext, CIT<T>> realtime) {
+            this.realtime = realtime;
+        }
+
+        public WeakReference<CIT<T>> get(CITContext context) {
+            if (this.cit == null || System.currentTimeMillis() - this.lastCachedStamp >= CITResewnConfig.INSTANCE.cache_ms) {
+                this.cit = new WeakReference<>(this.realtime.apply(context));
+                this.lastCachedStamp = System.currentTimeMillis();
+            }
+
+            return this.cit;
+        }
+    }
+
+    public static class MultiList<T extends CITType> extends CITCache<T> {
+        public List<WeakReference<CIT<T>>> cit = null;
+        public final Function<CITContext, List<CIT<T>>> realtime;
+
+        public MultiList(Function<CITContext, List<CIT<T>>> realtime) {
+            this.realtime = realtime;
+        }
+
+        public List<WeakReference<CIT<T>>> get(CITContext context) {
+            if (this.cit == null || System.currentTimeMillis() - this.lastCachedStamp >= CITResewnConfig.INSTANCE.cache_ms) {
+                this.cit = new ArrayList<>();
+                for (CIT<T> realtimeCIT : this.realtime.apply(context))
+                    this.cit.add(new WeakReference<>(realtimeCIT));
+                this.lastCachedStamp = System.currentTimeMillis();
+            }
+
+            return cit;
+        }
+    }
+}