1 files changed, 60 insertions, 0 deletions
diff --git a/spark-common/src/main/java/me/lucko/spark/sampler/TickCounter.java b/spark-common/src/main/java/me/lucko/spark/sampler/TickCounter.java
new file mode 100644
index 0000000..d6b754b
--- /dev/null
+++ b/spark-common/src/main/java/me/lucko/spark/sampler/TickCounter.java
@@ -0,0 +1,60 @@
+/*
+ * This file is part of spark.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  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 <http://www.gnu.org/licenses/>.
+ */
+
+package me.lucko.spark.sampler;
+
+/**
+ * A hook with the game's "tick loop".
+ */
+public interface TickCounter extends AutoCloseable {
+
+    /**
+     * Starts the counter
+     */
+    void start();
+
+    /**
+     * Stops the counter
+     */
+    @Override
+    void close();
+
+    /**
+     * Gets the current tick number
+     *
+     * @return the current tick
+     */
+    long getCurrentTick();
+
+    /**
+     * Adds a task to be called each time the tick increments
+     *
+     * @param runnable the task
+     */
+    void addTickTask(Runnable runnable);
+
+    /**
+     * Removes a tick task
+     *
+     * @param runnable the task
+     */
+    void removeTickTask(Runnable runnable);
+
+}