complete rewrite

src/main/java/one/oth3r/sit/utl/LoopManager.java

@@ -0,0 +1,56 @@
+package one.oth3r.sit.utl;
+
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.decoration.DisplayEntity;
+import net.minecraft.server.network.ServerPlayerEntity;
+import one.oth3r.sit.Sit;
+import one.oth3r.sit.file.Data;
+
+import java.util.HashMap;
+
+public class LoopManager {
+
+    private static int time = 0;
+
+    public static void tick() {
+        time++;
+        if (time >= 5) {
+            time = 0;
+
+            // check all sit entities to make sure their still valid
+            HashMap<ServerPlayerEntity, DisplayEntity.TextDisplayEntity> entities = Data.getSitEntities();
+            for (ServerPlayerEntity player : entities.keySet()) {
+                DisplayEntity.TextDisplayEntity entity = entities.get(player);
+
+                if (player.getVehicle() == null || !player.getVehicle().equals(entity)) {
+                    Logic.removeEntity(player);
+                } else {
+                    Logic.checkSittingValidity(player);
+                }
+            }
+
+            // get the player's sit entity when they join
+            // todo make it so it updates the sitting height and pos based on the block so if it changed while offline it still works (or if stair changes shape)
+            HashMap<ServerPlayerEntity, Integer> checkPlayers = Data.getCheckPlayers();
+            for (ServerPlayerEntity player : checkPlayers.keySet()) {
+                Integer time = checkPlayers.get(player);
+                // tick down or remove the player if at the end
+                time -= 1;
+                if (time <= 0) Data.removeCheckPlayer(player);
+                else Data.setCheckPlayer(player, time);
+
+                if (player.getVehicle() != null) {
+                    Entity entity = player.getVehicle();
+                    if (entity instanceof DisplayEntity.TextDisplayEntity tde && entity.getName().getString().equals(Sit.ENTITY_NAME)) {
+                        // bind the entity to the player
+                        Data.addSitEntity(player, tde);
+                        // check if the player is still allowed to sit
+                        Logic.checkSittingValidity(player);
+                        // remove the player from the check
+                        Data.removeCheckPlayer(player);
+                    }
+                }
+            }
+        }
+    }
+}