Pregen method api

src/main/java/com/volmit/iris/core/pregenerator/PregeneratorMethod.java

@@ -0,0 +1,72 @@
+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2021 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.volmit.iris.core.pregenerator;
+
+/**
+ * Represents something that is capable of generating in chunks or regions, or both
+ */
+public interface PregeneratorMethod {
+    /**
+     * This is called before any generate methods are called. Setup your generator here
+     */
+    void init();
+
+    /**
+     * This is called after the pregenerator is done. Save your work and stop threads
+     */
+    void close();
+
+    /**
+     * This is called every X amount of chunks or regions. Save work,
+     * but no need to save all of it. At the end, close() will still be called.
+     */
+    void save();
+
+    /**
+     * Return true if regions can be generated
+     * @return true if they can be
+     * @param x the x region
+     * @param z the z region
+     */
+    boolean supportsRegions(int x, int z);
+
+    /**
+     * Return the name of the method being used
+     * @return the name
+     * @param x the x region
+     * @param z the z region
+     */
+    String getMethod(int x, int z);
+
+    /**
+     * Called to generate a region. Execute sync, if multicore internally, wait
+     * for the task to complete
+     * @param x the x
+     * @param z the z
+     * @param listener signal chunks generating & generated. Parallel capable.
+     */
+    void generateRegion(int x, int z, PregenListener listener);
+
+    /**
+     * Called to generate a chunk. You can go async so long as save will wait on the threads to finish
+     * @param x the x
+     * @param z the z
+     */
+    void generateChunk(int x, int z);
+}