Added simple scheduler for recurring and delayed tasks (#39)

2 files changed, 78 insertions, 15 deletions

diff --git a/src/main/java/me/xmrvizzy/skyblocker/utils/Scheduler.java b/src/main/java/me/xmrvizzy/skyblocker/utils/Scheduler.java
new file mode 100644
index 00000000..0fdf4892
--- /dev/null
+++ b/src/main/java/me/xmrvizzy/skyblocker/utils/Scheduler.java
@@ -0,0 +1,60 @@
+package me.xmrvizzy.skyblocker.utils;
+
+import java.util.PriorityQueue;
+
+public class Scheduler {
+    private int currentTick;
+    private final PriorityQueue<ScheduledTask> tasks;
+
+    public Scheduler() {
+        currentTick = 0;
+        tasks = new PriorityQueue<>();
+    }
+
+    public void schedule(Runnable task, int delay) {
+        assert delay > 0;
+        ScheduledTask tmp = new ScheduledTask(currentTick + delay, task);
+        tasks.add(tmp);
+    }
+
+    public void scheduleCyclic(Runnable task, int period) {
+        new CyclicTask(task, period).run();
+    }
+
+    public void tick() {
+        currentTick += 1;
+        ScheduledTask task;
+        while ((task = tasks.peek()) != null && task.schedule <= currentTick) {
+            task.run();
+            tasks.poll();
+        }
+    }
+
+    private class CyclicTask implements Runnable {
+        private final Runnable inner;
+        private final int period;
+
+        public CyclicTask(Runnable task, int period) {
+            this.inner = task;
+            this.period = period;
+        }
+
+        @Override
+        public void run() {
+            schedule(this, period);
+            inner.run();
+        }
+    }
+
+    private record ScheduledTask(int schedule, Runnable inner) implements Comparable<ScheduledTask>, Runnable {
+        @Override
+        public int compareTo(ScheduledTask o) {
+            return schedule - o.schedule;
+        }
+
+        @Override
+        public void run() {
+            inner.run();
+        }
+    }
+}
diff --git a/src/main/java/me/xmrvizzy/skyblocker/utils/Utils.java b/src/main/java/me/xmrvizzy/skyblocker/utils/Utils.java
index e3623bb4..21c30ada 100644
--- a/src/main/java/me/xmrvizzy/skyblocker/utils/Utils.java
+++ b/src/main/java/me/xmrvizzy/skyblocker/utils/Utils.java
@@ -19,8 +19,9 @@ public class Utils {
     public static boolean isInjected = false;
 
     public static void sbChecker() {
-        List<String> sidebar = getSidebar();
-        if (sidebar == null) {
+        MinecraftClient client = MinecraftClient.getInstance();
+        List<String> sidebar;
+        if (client.world == null || client.isInSingleplayer() || (sidebar = getSidebar()) == null) {
             isOnSkyblock = false;
             isInDungeons = false;
             return;
@@ -28,22 +29,22 @@ public class Utils {
         String string = sidebar.toString();
 
         if (sidebar.isEmpty()) return;
-            if (sidebar.get(0).contains("SKYBLOCK") && !isOnSkyblock){
-                if(!isInjected){
-                    isInjected = true;
-                    ItemTooltipCallback.EVENT.register(PriceInfoTooltip::onInjectTooltip);
-                }
-                Events.onSkyblockJoin();
-
+        if (sidebar.get(0).contains("SKYBLOCK") && !isOnSkyblock) {
+            if (!isInjected) {
+                isInjected = true;
+                ItemTooltipCallback.EVENT.register(PriceInfoTooltip::onInjectTooltip);
             }
-            if (!sidebar.get(0).contains("SKYBLOCK") && isOnSkyblock) Events.onSkyblockDisconnect();
-            isInDungeons = isOnSkyblock && string.contains("The Catacombs");
+            Events.onSkyblockJoin();
+
         }
+        if (!sidebar.get(0).contains("SKYBLOCK") && isOnSkyblock) Events.onSkyblockDisconnect();
+        isInDungeons = isOnSkyblock && string.contains("The Catacombs");
+    }
 
     public static String getLocation() {
         String location = null;
         List<String> sidebarLines = getSidebar();
-        try{
+        try {
             assert sidebarLines != null;
             for (String sidebarLine : sidebarLines) {
                 if (sidebarLine.contains("⏣")) location = sidebarLine;
@@ -55,12 +56,13 @@ public class Utils {
         }
         return location;
     }
+
     public static double getPurse() {
         String purseString = null;
         double purse = 0;
 
         List<String> sidebarLines = getSidebar();
-        try{
+        try {
             assert sidebarLines != null;
             for (String sidebarLine : sidebarLines) {
                 if (sidebarLine.contains("Piggy:")) purseString = sidebarLine;
@@ -74,16 +76,17 @@ public class Utils {
         }
         return purse;
     }
+
     public static int getBits() {
         int bits = 0;
         String bitsString = null;
         List<String> sidebarLines = getSidebar();
-        try{
+        try {
             assert sidebarLines != null;
             for (String sidebarLine : sidebarLines) {
                 if (sidebarLine.contains("Bits")) bitsString = sidebarLine;
             }
-            if (bitsString !=null) {
+            if (bitsString != null) {
                 bits = Integer.parseInt(bitsString.replaceAll("[^0-9.]", "").strip());
             }
         } catch (IndexOutOfBoundsException e) {