check for other players when sitting

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

@@ -134,7 +134,9 @@ public class Logic {
         if (pos.getY() > entity.getY() - .80) pos2 = pos2.add(0,-1,0);
 
         // check if both poses are obstructed or not
-        return Utl.isNotObstructed(entity.getWorld(),pos1) && Utl.isNotObstructed(entity.getWorld(),pos2);
+        return Utl.isNotObstructed(entity.getWorld(),pos1) && Utl.isNotObstructed(entity.getWorld(),pos2)
+                // also check if occupied
+            && Utl.isNotOccupied(pos1) && Utl.isNotOccupied(pos2);
     }
 
     /**

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

@@ -54,6 +54,16 @@ public class Utl {
         return state.getCollisionShape(world,blockPos).isEmpty();
     }
 
+    /**
+     * checks the list of sit entities and sees if any of them are occupying the block pos
+     */
+    public static boolean isNotOccupied(BlockPos pos) {
+        for (DisplayEntity.TextDisplayEntity entity : Data.getSitEntities().values()) {
+            if (entity.getBlockPos().equals(pos)) return false;
+        }
+        return true;
+    }
+
     public static class Num {
 
         public static boolean isInt(String string) {