feat: Introduce core player movement manager with grid-based movement, player pushing mechanics, and initial bot control and strategic planning.

scenes/player.gd

@@ -1271,13 +1271,18 @@ func _find_random_spawn_position() -> Vector2i:
 	var available_positions = []
 	
 	# Scan the grid for valid walkable floor tiles that are not occupied
-	for x in range(enhanced_gridmap.columns):
-		for z in range(enhanced_gridmap.rows):
+	var cols = enhanced_gridmap.columns if "columns" in enhanced_gridmap else 14
+	var rs = enhanced_gridmap.rows if "rows" in enhanced_gridmap else 14
+	
+	for x in range(cols):
+		for z in range(rs):
 			var pos = Vector2i(x, z)
 			
-			# Check Floor 0 for walkable ground (Item 0)
+			# Check Floor 0 for walkable ground (Not a wall/obstacle)
 			var ground_item = enhanced_gridmap.get_cell_item(Vector3i(x, 0, z))
-			if ground_item == 0: # Assuming 0 is walkable ground
+			var is_walkable = ground_item != -1 and not ground_item in enhanced_gridmap.non_walkable_items
+			
+			if is_walkable:
 				# Check if position is occupied by another player
 				if not is_position_occupied(pos):
 					available_positions.append(pos)
@@ -1287,7 +1292,9 @@ func _find_random_spawn_position() -> Vector2i:
 		rng.randomize()
 		return available_positions[rng.randi() % available_positions.size()]
 	
-	return Vector2i.ZERO
+	# Better fallback center instead of 0,0 which is often a wall/border
+	print("[Player] Warning: No available spawn positions found! Using fallback.")
+	return Vector2i(cols / 2, rs / 2)
 
 func find_random_valid_position_in_range() -> Vector2i:
 	var rng = RandomNumberGenerator.new()