diff --git a/constants.py b/constants.py
index ee4aed6..ce645e1 100644
--- a/constants.py
+++ b/constants.py
@@ -1,112 +1,50 @@
-import pygame
-import sys
-import time
 import random
-from constants import WIDTH, HEIGHT, PANEL_WIDTH, BACKGROUND_COLOR, FPS, INITIAL_POPULATION, FOOD_APPEAR_INTERVAL, DEATH_ANIMATION_DURATION, record_highs, record_lows
-from terrain import draw_terrain
-from organism import Organism
-from utils import create_food
-from assets.font import load_font
 
-
-def draw_panel(screen, font, organism_count, food_count):
-    panel_x = WIDTH
-    pygame.draw.rect(screen, (50, 50, 50), (panel_x, 0, PANEL_WIDTH, HEIGHT))
-
-    text_lines = [
-        "Record Highs:",
-        f"Speed: {record_highs['speed']:.2f}",
-        f"Size: {record_highs['size']:.2f}",
-        f"Energy Efficiency: {record_highs['energy_efficiency']:.2f}",
-        f"Escape Ability: {record_highs['escape_ability']:.2f}",
-        f"Recovery Ability: {record_highs['recovery_ability']:.2f}",
-        f"Life Time: {record_highs['life_time']:.2f}",
-        f"Organisms: {record_highs['max_organisms']}",
-        f"Food: {record_highs['max_food']}",
-        "",
-        "Record Lows:",
-        f"Speed: {record_lows['speed']:.2f}",
-        f"Size: {record_lows['size']:.2f}",
-        f"Energy Efficiency: {record_lows['energy_efficiency']:.2f}",
-        f"Escape Ability: {record_lows['escape_ability']:.2f}",
-        f"Recovery Ability: {record_lows['recovery_ability']:.2f}",
-        f"Life Time: {record_lows['life_time']:.2f}",
-        "",
-        "Current Stats:",
-        f"Current Organisms: {organism_count}",
-        f"Current Food: {food_count}"
-    ]
-
-    for i, line in enumerate(text_lines):
-        text = font.render(line, True, (255, 255, 255))
-        screen.blit(text, (panel_x + 10, 10 + i * 20))
-
-
-def main():
-    pygame.init()
-    screen = pygame.display.set_mode((WIDTH + PANEL_WIDTH, HEIGHT))
-    clock = pygame.time.Clock()
-    font = load_font()
-
-    organisms = [Organism(random.randint(0, WIDTH), random.randint(
-        0, HEIGHT), 2, 5, 0.5, 0.5, 0.1) for _ in range(INITIAL_POPULATION)]
-    food_sources = [create_food() for _ in range(10)]
-    last_food_time = pygame.time.get_ticks()
-
-    while True:
-        for event in pygame.event.get():
-            if event.type == pygame.QUIT:
-                pygame.quit()
-                sys.exit()
-
-        screen.fill(BACKGROUND_COLOR)
-        draw_terrain(screen)
-
-        current_time = pygame.time.get_ticks()
-        if current_time - last_food_time > FOOD_APPEAR_INTERVAL:
-            food_sources.append(create_food())
-            last_food_time = current_time
-
-        new_organisms = []
-        for organism in organisms:
-            if organism.dead:
-                if time.time() - organism.death_start_time > DEATH_ANIMATION_DURATION:
-                    continue  # Skip dead organism after death animation
-            else:
-                organism.move(food_sources)
-                organism.recover()
-                if organism.energy <= 0 or organism.health <= 0:
-                    organism.die()
-                    continue
-                for food in food_sources:
-                    if abs(organism.x - food[0]) < 5 and abs(organism.y - food[1]) < 5:
-                        organism.eat()
-                        food_sources.remove(food)
-                        break
-                offspring = organism.reproduce()
-                if offspring:
-                    new_organisms.append(offspring)
-            new_organisms.append(organism)
-
-        organisms = new_organisms
-        organism_count = len(organisms)
-        food_count = len(food_sources)
-
-        record_highs['max_organisms'] = max(
-            record_highs['max_organisms'], organism_count)
-        record_highs['max_food'] = max(record_highs['max_food'], food_count)
-
-        for organism in organisms:
-            organism.draw(screen, font)
-
-        for food in food_sources:
-            pygame.draw.circle(screen, (255, 0, 0), food, 3)
-
-        draw_panel(screen, font, organism_count, food_count)
-
-        pygame.display.flip()
-        clock.tick(FPS)
-
-
-if __name__ == "__main__":
-    main()
+# Constants
+WIDTH, HEIGHT = 800, 600
+BACKGROUND_COLOR = (0, 0, 0)
+PANEL_WIDTH = 200
+FPS = 60
+INITIAL_POPULATION = 20
+MUTATION_RATE = 0.01
+ENERGY_LOSS_RATE = 0.01
+ENERGY_GAIN = 100
+FOOD_APPEAR_INTERVAL = 1000  # milliseconds
+REPRODUCTION_RATE = 0
+DETECTION_RADIUS = 100  # distance to detect food
+MOVEMENT_STEPS = 20  # number of steps to maintain direction
+EATING_ANIMATION_DURATION = 0.5  # seconds
+DEATH_ANIMATION_DURATION = 0.5  # seconds
+REPRODUCTION_ANIMATION_DURATION = 0.5  # seconds
+
+# Environmental factors
+TERRAIN = [[random.choice(['normal', 'difficult', 'trap'])
+            for _ in range(WIDTH // 10)] for _ in range(HEIGHT // 10)]
+
+# Colors for terrain types in grayscale
+TERRAIN_COLORS = {
+    'normal': (169, 169, 169),
+    'difficult': (105, 105, 105),
+    'trap': (50, 50, 50)
+}
+
+# Record highs and lows
+record_highs = {
+    'speed': 0,
+    'size': 0,
+    'energy_efficiency': 0,
+    'escape_ability': 0,
+    'recovery_ability': 0,
+    'life_time': 0,
+    'max_organisms': 0,
+    'max_food': 0
+}
+
+record_lows = {
+    'speed': float('inf'),
+    'size': float('inf'),
+    'energy_efficiency': float('inf'),
+    'escape_ability': float('inf'),
+    'recovery_ability': float('inf'),
+    'life_time': float('inf')
+}