Update upstream(Luminol-lithium-sleeping-block-entity)

lophine-server/src/main/java/com/logisticscraft/occlusionculling/DataProvider.java

@@ -0,0 +1,34 @@
+package com.logisticscraft.occlusionculling;
+
+import com.logisticscraft.occlusionculling.util.Vec3d;
+
+public interface DataProvider {
+
+    /**
+     * Prepares the requested chunk. Returns true if the chunk is ready, false when
+     * not loaded. Should not reload the chunk when the x and y are the same as the
+     * last request!
+     *
+     * @param chunkX
+     * @param chunkZ
+     * @return
+     */
+    boolean prepareChunk(int chunkX, int chunkZ);
+
+    /**
+     * Location is inside the chunk.
+     *
+     * @param x
+     * @param y
+     * @param z
+     * @return
+     */
+    boolean isOpaqueFullCube(int x, int y, int z);
+
+    default void cleanup() {
+    }
+
+    default void checkingPosition(Vec3d[] targetPoints, int size, Vec3d viewerPosition) {
+    }
+
+}