add MinecraftTick.java to help with adding async...

delays, and converting tick to seconds

1 files changed, 77 insertions, 0 deletions

diff --git a/src/main/java/los/numeros/utils/MinecraftTick.java b/src/main/java/los/numeros/utils/MinecraftTick.java
new file mode 100644
index 0000000..890865a
--- /dev/null
+++ b/src/main/java/los/numeros/utils/MinecraftTick.java
@@ -0,0 +1,77 @@
+package los.numeros.utils;
+
+import net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents;
+
+/**
+ * class for dealing with minecraft ticks
+ *
+ */
+public class MinecraftTick {
+  /* interface for callbacks */
+  public interface Callback {
+    public void run(long delay);
+  }
+
+  /**
+   * run callback on delay
+   *
+   * @param ticks minecraft ticks to wait before calling delay
+   * @param callback callback to run after ticks delay
+   */
+  public void delayCallback(long ticks, MinecraftTick.Callback callback) {
+    Delay delay = new Delay();
+    delay.tickCallback = callback;
+
+    /* register event to run on every server tick */
+    /* TEST: I'm pretty sure this creates a new event every time this method is
+     * called, but I could be wrong */
+    ServerTickEvents.END_SERVER_TICK.register(event -> {
+      /* check if we're done */
+      if (delay.tickCounter == ticks) {
+        /* run callback */
+        delay.tickCallback.run(ticks);
+        delay.tickCallbackRan = true;
+        
+        /* reset for next run */
+        delay.tickCounter = 0L;
+        return;
+      }
+
+      /* increment counter every tick */
+      if (!delay.tickCallbackRan) {
+        delay.tickCounter++;
+      }
+    });
+    return;
+  }
+
+  /**
+   * convert seconds to ticks
+   *
+   * @param seconds seconds
+   * @return ticks
+   */
+  static public long secondToTick(int seconds) {
+    return seconds * 20;
+  }
+
+  /**
+   * convert ticks to seconds
+   *
+   * @param ticks minecraft ticks
+   * @return seconds
+   */
+  static public int tickToSecond(long ticks) {
+    return (int)(ticks / 20);
+  }
+}
+
+/**
+ * small class to deal with tick delay callbacks
+ *
+ */
+class Delay {
+  public long tickCounter = 0L;
+  public boolean tickCallbackRan = false;
+  public MinecraftTick.Callback tickCallback;
+}