Add food connection rendering with orange bounding boxes and lines

config/constants.py

@@ -13,6 +13,7 @@ WHITE = (255, 255, 255)
 RED = (255, 0, 0)
 BLUE = (0, 0, 255)
 GREEN = (0, 255, 0)
+ORANGE = (255, 165, 0)
 LIGHT_BLUE = (52, 134, 235)
 SELECTION_BLUE = (0, 128, 255)
 SELECTION_GRAY = (128, 128, 128, 80)

core/renderer.py

@@ -5,7 +5,7 @@ import pygame
 import math
 from config.constants import *
 from world.base.brain import CellBrain
-from world.objects import DefaultCell
+from world.objects import DefaultCell, FoodObject
 
 
 class Renderer:
@@ -251,3 +251,68 @@ class Renderer:
             size = camera.get_relative_size(width)
             rect = pygame.Rect(screen_x - size // 2, screen_y - size // 2, size, size)
             pygame.draw.rect(self.render_area, SELECTION_BLUE, rect, 1)
+
+    def render_food_connections(self, world, camera, selected_objects):
+        """Render orange bounding boxes around closest food and lines from selected cells."""
+        if not selected_objects:
+            return
+
+        # Find closest food to each selected cell
+        for selected_cell in selected_objects:
+            # Check if selected cell can have food interactions (DefaultCell)
+            if not isinstance(selected_cell, DefaultCell):
+                continue
+
+            # Find all food objects in world
+            all_objects = world.get_objects()
+            food_objects = [obj for obj in all_objects if isinstance(obj, FoodObject)]
+
+            if not food_objects:
+                continue
+
+            # Get selected cell position
+            cell_x, cell_y = selected_cell.position.get_position()
+
+            # Find closest food object
+            closest_food = None
+            closest_distance = float('inf')
+
+            for food in food_objects:
+                food_x, food_y = food.position.get_position()
+                distance = ((food_x - cell_x) ** 2 + (food_y - cell_y) ** 2) ** 0.5
+
+                if distance < closest_distance:
+                    closest_distance = distance
+                    closest_food = food
+
+            # Draw bounding box around closest food and connecting line
+            if closest_food and closest_food != selected_cell:
+                food_x, food_y = closest_food.position.get_position()
+                food_width = closest_food.max_visual_width
+                food_size = int(food_width * camera.zoom)
+
+                # Calculate bounding box position (centered on food)
+                box_x, box_y = camera.world_to_screen(food_x, food_y)
+                box_rect = pygame.Rect(
+                    box_x - food_size,
+                    box_y - food_size,
+                    food_size * 2,
+                    food_size * 2
+                )
+
+                # Draw orange bounding box (2 pixel width)
+                pygame.draw.rect(self.render_area, ORANGE, box_rect, 2)
+
+                # Draw line from selected cell to closest food
+                screen_x, screen_y = camera.world_to_screen(cell_x, cell_y)
+
+                # Calculate line thickness based on zoom (minimum 1 pixel)
+                line_thickness = max(1, int(2 * camera.zoom))
+
+                pygame.draw.line(
+                    self.render_area,
+                    ORANGE,
+                    (screen_x, screen_y),
+                    (box_x, box_y),
+                    line_thickness
+                )

core/simulation_engine.py

@@ -259,6 +259,12 @@ class SimulationEngine:
                 self.input_handler.selected_objects,
                 self.simulation_core.camera
             )
+            if self.input_handler.show_interaction_radius:
+                self.renderer.render_food_connections(
+                    self.simulation_core.world,
+                    self.simulation_core.camera,
+                    self.input_handler.selected_objects
+                )
             self.screen.blit(self.sim_view, (self.sim_view_rect.left, self.sim_view_rect.top))
 
     def _update_and_render_ui(self, deltatime):