feat: implement the new "Stop N Go" game mode, including phase management, dynamic safe zones, player missions, and dedicated UI with visual effects.

scenes/main.tscn

@@ -92,6 +92,9 @@ current = true
 fov = 21.0
 size = 15.0
 
+[node name="WorldEnvironment" type="WorldEnvironment" parent="." unique_id=12971344]
+environment = ExtResource("4_ky38j")
+
 [node name="PlayerboardPanel" type="PanelContainer" parent="." unique_id=1098203639]
 material = SubResource("ShaderMaterial_j8jky")
 anchors_preset = 4
@@ -1140,9 +1143,6 @@ theme_override_styles/focus = SubResource("StyleBoxFlat_1cewu")
 placeholder_text = "Chat"
 alignment = 1
 
-[node name="WorldEnvironment" type="WorldEnvironment" parent="." unique_id=12971344]
-environment = ExtResource("4_ky38j")
-
 [node name="MessageBar" type="PanelContainer" parent="." unique_id=142729129]
 visible = false
 anchors_preset = 2

scenes/player.gd

@@ -621,10 +621,13 @@ func receive_spawn_positions_update(occupied_positions: Array):
 			highlighted_spawn_points.erase(pos)
 			if enhanced_gridmap:
 				# Clear the highlight from Layer 2 (Overlay) instead of overwriting Floor 0
-				enhanced_gridmap.set_cell_item(
-					Vector3i(pos.x, 2, pos.y),
-					-1
-				)
+				# PROTECTION: Never clear if it's a Safe Zone (ID 2)
+				var current_l2 = enhanced_gridmap.get_cell_item(Vector3i(pos.x, 2, pos.y))
+				if current_l2 != 2:
+					enhanced_gridmap.set_cell_item(
+						Vector3i(pos.x, 2, pos.y),
+						-1
+					)
 	
 	# Now highlight available positions
 	highlight_available_spawn_points()

scenes/player.tscn

@@ -31,17 +31,8 @@ spacing_glyph = 5
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 2.5, 0)
 collision_layer = 2
 script = ExtResource("1_qecr4")
-is_bot = null
-enhanced_gridmap_path = null
-current_position = null
 cell_size = Vector3(1, 1, 1)
-cell_offset = null
-goals = null
-playerboard = null
-movement_range = null
 use_diagonal_movement = true
-is_my_turn = null
-has_moved_this_turn = null
 
 [node name="Masbro" parent="." unique_id=1585899496 instance=ExtResource("2_mjsl8")]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, -0.485, 0)
@@ -151,9 +142,7 @@ transform = Transform3D(1, 0, 0, 0, -4.371139e-08, -1, 0, 1, -4.371139e-08, 0, 1
 visible = false
 billboard = 1
 sprite_frames = ExtResource("10_y4r1p")
-animation = &"wall-initiator"
-frame = 149
-frame_progress = 1.0
+animation = &"stop-phase"
 
 [node name="receiver_skill_stunned" type="AnimatedSprite3D" parent="." unique_id=56953581]
 transform = Transform3D(0.5, 0, 0, 0, -2.1855694e-08, -0.5, 0, 0.5, -2.1855694e-08, 0, 1.5653763, 0)
@@ -168,7 +157,7 @@ frame_progress = 1.0
 transform = Transform3D(0.5, 0, 0, 0, -2.1855694e-08, -0.5, 0, 0.5, -2.1855694e-08, 0, 1.5653763, 0)
 visible = false
 sprite_frames = ExtResource("10_y4r1p")
-animation = &"freeze-initiator"
+animation = &"attack-mode-receiver-top"
 
 [node name="attack_mode_bot" type="AnimatedSprite3D" parent="." unique_id=1320274503]
 transform = Transform3D(1, 0, 0, 0, -4.371139e-08, -1, 0, 1, -4.371139e-08, 0, -0.6701627, 0)

scenes/stop_n_go_animation.tscn

@@ -0,0 +1,11 @@
+[gd_scene format=3 uid="uid://dbqj67js76fa5"]
+
+[node name="StopNGoAnimation" type="Control" unique_id=257399947]
+layout_mode = 3
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+
+[node name="AnimationPlayer" type="AnimationPlayer" parent="." unique_id=1614214519]