Stage 2-3: Player states and Killer system

src/main/java/dev/loki/totem/Totem.java

@@ -0,0 +1,86 @@
+package dev.loki.totem;
+
+import org.bukkit.Location;
+import org.bukkit.entity.ArmorStand;
+import org.bukkit.entity.EntityType;
+
+import java.util.UUID;
+
+public abstract class Totem {
+    protected final UUID id;
+    protected final Location location;
+    protected ArmorStand display;
+    protected TotemState state;
+    protected UUID linkedPerkId;
+
+    public Totem(Location location) {
+        this.id = UUID.randomUUID();
+        this.location = location;
+        this.state = TotemState.DULL;
+        this.linkedPerkId = null;
+    }
+
+    public void spawn() {
+        if (display != null && !display.isDead()) {
+            return;
+        }
+        display = (ArmorStand) location.getWorld().spawnEntity(location, EntityType.ARMOR_STAND);
+        display.setVisible(false);
+        display.setGravity(false);
+        display.setSmall(true);
+        display.setMarker(true);
+        display.setCustomNameVisible(true);
+        updateVisuals();
+    }
+
+    public void remove() {
+        if (display != null && !display.isDead()) {
+            display.remove();
+        }
+    }
+
+    public abstract void updateVisuals();
+
+    public abstract void onInteract(UUID playerId);
+
+    public UUID getId() {
+        return id;
+    }
+
+    public Location getLocation() {
+        return location;
+    }
+
+    public TotemState getState() {
+        return state;
+    }
+
+    public void setState(TotemState state) {
+        this.state = state;
+        updateVisuals();
+    }
+
+    public UUID getLinkedPerkId() {
+        return linkedPerkId;
+    }
+
+    public void setLinkedPerkId(UUID linkedPerkId) {
+        this.linkedPerkId = linkedPerkId;
+    }
+
+    public boolean isHexTotem() {
+        return state == TotemState.HEX;
+    }
+
+    public boolean isBlessedTotem() {
+        return state == TotemState.BLESSED;
+    }
+
+    public boolean isCleansed() {
+        return state == TotemState.CLEANSED;
+    }
+
+    public double distanceTo(Location other) {
+        return location.distance(other);
+    }
+}