Refactor HUD to support dynamic panel resizing and improve layout management

core/renderer.py

@@ -13,11 +13,8 @@ class Renderer:
         self.render_height = render_area.get_height()
         self.render_width = render_area.get_width()
 
-    def clear_screen(self, main_screen=None):
+    def clear_screen(self):
         """Clear the screen with a black background."""
-        if main_screen:
-            main_screen.fill(BLACK)
-
         self.render_area.fill(BLACK)
 
     def draw_grid(self, camera, showing_grid=True):

core/simulation_engine.py

@@ -18,21 +18,29 @@ from ui.hud import HUD
 class SimulationEngine:
     def __init__(self):
         pygame.init()
+        self._init_window()
+        self._init_ui()
+        self._init_simulation()
+        self.running = True
 
+    def _init_window(self):
         info = pygame.display.Info()
-        self.window_width, self.window_height = info.current_w // 2, info.current_h // 2
+        self.window_width = int(info.current_w // 1.5)
-        self.screen = pygame.display.set_mode((self.window_width, self.window_height),
+        self.window_height = int(info.current_h // 1.5)
-                                              pygame.RESIZABLE, vsync=1)
+        self.screen = pygame.display.set_mode(
-
+            (self.window_width, self.window_height),
-        self.ui_manager = UIManager((self.window_width, self.window_height))
+            pygame.RESIZABLE, vsync=1
-
+        )
-        self.camera = Camera(SCREEN_WIDTH, SCREEN_HEIGHT, RENDER_BUFFER)
-        self._update_simulation_view()
-
-        # self.screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT), vsync=1)
         pygame.display.set_caption("Dynamic Abstraction System Testing")
         self.clock = pygame.time.Clock()
 
+    def _init_ui(self):
+        self.ui_manager = UIManager((self.window_width, self.window_height))
+        self.hud = HUD(self.ui_manager, self.window_width, self.window_height)
+        self.hud.update_layout(self.window_width, self.window_height)
+        self._update_simulation_view()
+
+    def _init_simulation(self):
         self.last_tick_time = time.perf_counter()
         self.last_tps_time = time.perf_counter()
         self.tick_counter = 0
@@ -42,21 +50,17 @@ class SimulationEngine:
         self.world = self._setup_world()
         self.input_handler = InputHandler(self.camera, self.world, self.sim_view_rect)
         self.renderer = Renderer(self.sim_view)
-        self.hud = HUD(self.ui_manager, self.window_width, self.window_height)
-        self.hud.update_layout(self.window_width, self.window_height)
-
-        self.running = True
 
     def _update_simulation_view(self):
-        self.sim_view_width = int(self.window_width * 0.75)
+        viewport_rect = self.hud.get_viewport_rect()
-        self.sim_view_height = int(self.window_height * 0.75)
+        self.sim_view_width = viewport_rect.width
+        self.sim_view_height = viewport_rect.height
         self.sim_view = pygame.Surface((self.sim_view_width, self.sim_view_height))
-        self.sim_view_rect = self.sim_view.get_rect(center=(self.window_width // 2, self.window_height // 2))
+        self.sim_view_rect = self.sim_view.get_rect(topleft=(viewport_rect.left, viewport_rect.top))
 
         self.ui_manager.set_window_resolution((self.window_width, self.window_height))
         self.renderer = Renderer(self.sim_view)
 
-        # Update camera to match new sim_view size
         if hasattr(self, 'camera'):
             self.camera.screen_width = self.sim_view_width
             self.camera.screen_height = self.sim_view_height
@@ -64,6 +68,8 @@ class SimulationEngine:
         if hasattr(self, 'input_handler'):
             self.input_handler.update_sim_view_rect(self.sim_view_rect)
 
+        if not hasattr(self, 'camera'):
+            self.camera = Camera(self.sim_view_width, self.sim_view_height, RENDER_BUFFER)
 
     @staticmethod
     def _setup_world():
@@ -80,10 +86,11 @@ class SimulationEngine:
                 world.add_object(FoodObject(Position(x=x, y=y)))
 
         for _ in range(300):
-            new_cell = DefaultCell(Position(x=random.randint(-half_width, half_width), y=random.randint(-half_height, half_height)), Rotation(angle=0))
+            new_cell = DefaultCell(
-
+                Position(x=random.randint(-half_width, half_width), y=random.randint(-half_height, half_height)),
+                Rotation(angle=0)
+            )
             new_cell.behavioral_model = new_cell.behavioral_model.mutate(3)
-
             world.add_object(new_cell)
 
         return world
@@ -91,7 +98,6 @@ class SimulationEngine:
     def run(self):
         while self.running:
             self._handle_frame()
-
         pygame.quit()
         sys.exit()
 
@@ -99,57 +105,16 @@ class SimulationEngine:
         deltatime = self.clock.get_time() / 1000.0
         tick_interval = 1.0 / self.input_handler.tps
 
-        # Handle events
         events = pygame.event.get()
         self.running = self.input_handler.handle_events(events, self.hud.manager)
-
+        self._handle_window_events(events)
-        for event in events:
-            if event.type == pygame.VIDEORESIZE:
-                self.window_width, self.window_height = event.w, event.h
-                self.screen = pygame.display.set_mode((self.window_width, self.window_height),
-                                                      pygame.RESIZABLE)
-                self._update_simulation_view()
-                self.hud.update_layout(self.window_width, self.window_height)
 
         if self.input_handler.sprint_mode:
-            # Sprint mode: run as many ticks as possible, skip rendering
+            self._handle_sprint_mode()
-            current_time = time.perf_counter()
-            while True:
-                self.input_handler.update_selected_objects()
-                self.world.tick_all()
-                self.tick_counter += 1
-                self.total_ticks += 1
-                # Optionally break after some time to allow event processing
-                if time.perf_counter() - current_time > 0.05:  # ~50ms per batch
-                    break
-            # Update TPS every second
-            if time.perf_counter() - self.last_tps_time >= 1.0:
-                self.actual_tps = self.tick_counter
-                self.tick_counter = 0
-                self.last_tps_time = time.perf_counter()
-            # No rendering or camera update
-
-            self.renderer.clear_screen()
-            self.hud.render_sprint_debug(self.screen, self.actual_tps, self.total_ticks)
-            pygame.display.flip()
-            self.clock.tick(MAX_FPS)
             return
 
         if not self.input_handler.is_paused:
-            current_time = time.perf_counter()
+            self._handle_simulation_ticks(tick_interval, deltatime)
-            while current_time - self.last_tick_time >= tick_interval:
-                self.last_tick_time += tick_interval
-                self.tick_counter += 1
-                self.total_ticks += 1
-
-                self.input_handler.update_selected_objects()
-                self.world.tick_all()
-                self.hud.manager.update(deltatime)
-
-            if current_time - self.last_tps_time >= 1.0:
-                self.actual_tps = self.tick_counter
-                self.tick_counter = 0
-                self.last_tps_time += 1.0
         else:
             self.last_tick_time = time.perf_counter()
             self.last_tps_time = time.perf_counter()
@@ -158,25 +123,74 @@ class SimulationEngine:
         self._update(deltatime)
         self._render()
 
+    def _handle_window_events(self, events):
+        for event in events:
+            self.hud.process_event(event)
+            if event.type == pygame.VIDEORESIZE:
+                self.window_width, self.window_height = event.w, event.h
+                self.screen = pygame.display.set_mode(
+                    (self.window_width, self.window_height),
+                    pygame.RESIZABLE
+                )
+                self._update_simulation_view()
+                self.hud.update_layout(self.window_width, self.window_height)
+
+        self.hud.update_layout(self.window_width, self.window_height)
+        self._update_simulation_view()
+
+    def _handle_sprint_mode(self):
+        current_time = time.perf_counter()
+        while True:
+            self.input_handler.update_selected_objects()
+            self.world.tick_all()
+            self.tick_counter += 1
+            self.total_ticks += 1
+            if time.perf_counter() - current_time > 0.05:
+                break
+        if time.perf_counter() - self.last_tps_time >= 1.0:
+            self.actual_tps = self.tick_counter
+            self.tick_counter = 0
+            self.last_tps_time = time.perf_counter()
+        self.screen.fill(BLACK)
+        self.renderer.clear_screen()
+        self.hud.render_sprint_debug(self.screen, self.actual_tps, self.total_ticks)
+        pygame.display.flip()
+        self.clock.tick(MAX_FPS)
+
+    def _handle_simulation_ticks(self, tick_interval, deltatime):
+        current_time = time.perf_counter()
+        while current_time - self.last_tick_time >= tick_interval:
+            self.last_tick_time += tick_interval
+            self.tick_counter += 1
+            self.total_ticks += 1
+            self.input_handler.update_selected_objects()
+            self.world.tick_all()
+            self.hud.manager.update(deltatime)
+        if current_time - self.last_tps_time >= 1.0:
+            self.actual_tps = self.tick_counter
+            self.tick_counter = 0
+            self.last_tps_time += 1.0
+
     def _update(self, deltatime):
         keys = pygame.key.get_pressed()
         self.input_handler.update_camera(keys, deltatime)
 
     def _render(self):
-        self.renderer.clear_screen(self.screen)
+        self.screen.fill(BLACK)
-        self.renderer.draw_grid(self.camera, self.input_handler.show_grid)
+        self.renderer.clear_screen()
-        self.renderer.render_world(self.world, self.camera)
-        self.renderer.render_interaction_radius(self.world, self.camera, self.input_handler.selected_objects, self.input_handler.show_interaction_radius)
-        self.renderer.render_selection_rectangle(self.input_handler.get_selection_rect(), self.sim_view_rect)
-        self.renderer.render_selected_objects_outline(self.input_handler.selected_objects, self.camera)
 
-        # In core/simulation_engine.py, in _render():
+        if not self.hud.dragging_splitter:
-        self.screen.blit(self.sim_view, (self.sim_view_rect.left, self.sim_view_rect.top))
+            self.renderer.draw_grid(self.camera, self.input_handler.show_grid)
+            self.renderer.render_world(self.world, self.camera)
+            self.renderer.render_interaction_radius(
+                self.world, self.camera, self.input_handler.selected_objects, self.input_handler.show_interaction_radius
+            )
+            self.renderer.render_selection_rectangle(self.input_handler.get_selection_rect(), self.sim_view_rect)
+            self.renderer.render_selected_objects_outline(self.input_handler.selected_objects, self.camera)
+            self.screen.blit(self.sim_view, (self.sim_view_rect.left, self.sim_view_rect.top))
 
-        # Draw border around sim_view
+        self.hud.manager.draw_ui(self.screen)
-        border_color = (255, 255, 255)  # White
+        self.hud.draw_splitters(self.screen)  # <-- Add this line
-        border_width = 3
-        pygame.draw.rect(self.screen, border_color, self.sim_view_rect, border_width)
 
         self.hud.render_mouse_position(self.screen, self.camera, self.sim_view_rect)
         self.hud.render_fps(self.screen, self.clock)
@@ -185,7 +199,6 @@ class SimulationEngine:
         self.hud.render_selected_objects_info(self.screen, self.input_handler.selected_objects)
         self.hud.render_legend(self.screen, self.input_handler.show_legend)
         self.hud.render_pause_indicator(self.screen, self.input_handler.is_paused)
-
         if self.input_handler.selected_objects:
             self.hud.render_neural_network_visualization(self.screen, self.input_handler.selected_objects[0])
 

main.py

@@ -1,5 +1,8 @@
 from core.simulation_engine import SimulationEngine
 
-if __name__ == "__main__":
+def main():
     engine = SimulationEngine()
     engine.run()
+
+if __name__ == "__main__":
+    main()

ui/hud.py

@@ -6,18 +6,188 @@ import pygame_gui
 from config.constants import *
 from world.base.brain import CellBrain, FlexibleNeuralNetwork
 from world.objects import DefaultCell
+from pygame_gui.elements import UIPanel
 import math
 
+DARK_GRAY = (40, 40, 40)
+DARKER_GRAY = (25, 25, 25)
 
 class HUD:
     def __init__(self, ui_manager, screen_width=SCREEN_WIDTH, screen_height=SCREEN_HEIGHT):
         self.font = pygame.font.Font("freesansbold.ttf", FONT_SIZE)
         self.legend_font = pygame.font.Font("freesansbold.ttf", LEGEND_FONT_SIZE)
 
+        self.manager = ui_manager
         self.screen_width = screen_width
         self.screen_height = screen_height
 
-        self.manager = ui_manager
+        # Panel size defaults
+        self.control_bar_height = 48
+        self.inspector_width = 260
+        self.properties_width = 320
+        self.console_height = 120
+        self.splitter_thickness = 6
+
+        self.dragging_splitter = None
+        self._create_panels()
+
+    def _create_panels(self):
+        # Top control bar
+        self.control_bar = UIPanel(
+            relative_rect=pygame.Rect(0, 0, self.screen_width, self.control_bar_height),
+            manager=self.manager,
+            object_id="#control_bar",
+        )
+
+        # Left inspector
+        self.inspector_panel = UIPanel(
+            relative_rect=pygame.Rect(
+                0, self.control_bar_height,
+                self.inspector_width,
+                self.screen_height - self.control_bar_height
+            ),
+            manager=self.manager,
+            object_id="#inspector_panel",
+        )
+
+        # Right properties
+        self.properties_panel = UIPanel(
+            relative_rect=pygame.Rect(
+                self.screen_width - self.properties_width,
+                self.control_bar_height,
+                self.properties_width,
+                self.screen_height - self.control_bar_height
+            ),
+            manager=self.manager,
+            object_id="#properties_panel",
+        )
+
+        # Bottom console
+        self.console_panel = UIPanel(
+            relative_rect=pygame.Rect(
+                self.inspector_width,
+                self.screen_height - self.console_height,
+                self.screen_width - self.inspector_width - self.properties_width,
+                self.console_height
+            ),
+            manager=self.manager,
+            object_id="#console_panel",
+        )
+
+        self.panels = [
+            self.control_bar,
+            self.inspector_panel,
+            self.properties_panel,
+            self.console_panel
+        ]
+        self.dragging_splitter = None
+
+    def get_viewport_rect(self):
+        # Returns the rect for the simulation viewport
+        x = self.inspector_width
+        y = self.control_bar_height
+        w = self.screen_width - self.inspector_width - self.properties_width
+        h = self.screen_height - self.control_bar_height - self.console_height
+        return pygame.Rect(x, y, w, h)
+
+    def update_layout(self, window_width, window_height):
+        self.screen_width = window_width
+        self.screen_height = window_height
+
+        # Control bar (top)
+        self.control_bar.set_relative_position((0, 0))
+        self.control_bar.set_dimensions((self.screen_width, self.control_bar_height))
+
+        # Inspector panel (left) - goes all the way to the bottom
+        self.inspector_panel.set_relative_position((0, self.control_bar_height))
+        self.inspector_panel.set_dimensions((self.inspector_width, self.screen_height - self.control_bar_height))
+
+        # Properties panel (right) - goes all the way to the bottom
+        self.properties_panel.set_relative_position(
+            (self.screen_width - self.properties_width, self.control_bar_height))
+        self.properties_panel.set_dimensions((self.properties_width, self.screen_height - self.control_bar_height))
+
+        # Console panel (bottom, spans between inspector and properties)
+        self.console_panel.set_relative_position((self.inspector_width, self.screen_height - self.console_height))
+        self.console_panel.set_dimensions(
+            (self.screen_width - self.inspector_width - self.properties_width, self.console_height))
+
+    def process_event(self, event):
+        # Handle splitter dragging for resizing panels
+        if event.type == pygame.MOUSEBUTTONDOWN and event.button == 1:
+            mx, my = event.pos
+            # Check if mouse is on a splitter (left/right/bottom)
+            if abs(mx - self.inspector_width) < self.splitter_thickness and self.control_bar_height < my < self.screen_height - self.console_height:
+                self.dragging_splitter = "inspector"
+            elif abs(mx - (self.screen_width - self.properties_width)) < self.splitter_thickness and self.control_bar_height < my < self.screen_height - self.console_height:
+                self.dragging_splitter = "properties"
+            elif abs(my - (self.screen_height - self.console_height)) < self.splitter_thickness and self.inspector_width < mx < self.screen_width - self.properties_width:
+                self.dragging_splitter = "console"
+            self.update_layout(self.screen_width, self.screen_height)
+        elif event.type == pygame.MOUSEBUTTONUP and event.button == 1:
+            self.dragging_splitter = None
+        elif event.type == pygame.MOUSEMOTION and self.dragging_splitter:
+            mx, my = event.pos
+            if self.dragging_splitter == "inspector":
+                self.inspector_width = max(100, min(mx, self.screen_width - self.properties_width - 100))
+            elif self.dragging_splitter == "properties":
+                self.properties_width = max(100, min(self.screen_width - mx, self.screen_width - self.inspector_width - 100))
+            elif self.dragging_splitter == "console":
+                self.console_height = max(60, min(self.screen_height - my, self.screen_height - self.control_bar_height - 60))
+            self.update_layout(self.screen_width, self.screen_height)
+
+    def draw_splitters(self, screen):
+        # Draw draggable splitters for visual feedback
+        indicator_color = (220, 220, 220)
+        indicator_size = 6  # Length of indicator line
+        indicator_gap = 4    # Gap between indicator lines
+        indicator_count = 3  # Number of indicator lines
+
+        # Vertical splitter (inspector/properties)
+        # Inspector/properties only if wide enough
+        if self.inspector_width > 0:
+            x = self.inspector_width - 2
+            y1 = self.control_bar_height
+            y2 = self.screen_height - self.console_height
+            # Draw indicator (horizontal lines) in the middle
+            mid_y = (y1 + y2) // 2
+            for i in range(indicator_count):
+                offset = (i - 1) * (indicator_gap + 1)
+                pygame.draw.line(
+                    screen, indicator_color,
+                    (x - indicator_size // 2, mid_y + offset),
+                    (x + indicator_size // 2, mid_y + offset),
+                    2
+                )
+
+        if self.properties_width > 0:
+            x = self.screen_width - self.properties_width + 2
+            y1 = self.control_bar_height
+            y2 = self.screen_height - self.console_height
+            mid_y = (y1 + y2) // 2
+            for i in range(indicator_count):
+                offset = (i - 1) * (indicator_gap + 1)
+                pygame.draw.line(
+                    screen, indicator_color,
+                    (x - indicator_size // 2, mid_y + offset),
+                    (x + indicator_size // 2, mid_y + offset),
+                    2
+                )
+
+        # Horizontal splitter (console)
+        if self.console_height > 0:
+            y = self.screen_height - self.console_height + 2
+            x1 = self.inspector_width
+            x2 = self.screen_width - self.properties_width
+            mid_x = (x1 + x2) // 2
+            for i in range(indicator_count):
+                offset = (i - 1) * (indicator_gap + 1)
+                pygame.draw.line(
+                    screen, indicator_color,
+                    (mid_x + offset, y - indicator_size // 2),
+                    (mid_x + offset, y + indicator_size // 2),
+                    2
+                )
 
     def render_mouse_position(self, screen, camera, sim_view_rect):
         """Render mouse position in top left."""
@@ -145,6 +315,7 @@ class HUD:
         VIZ_WIDTH = 280  # Width of the neural network visualization area
         VIZ_HEIGHT = 300  # Height of the neural network visualization area
         VIZ_RIGHT_MARGIN = VIZ_WIDTH + 50  # Distance from right edge of screen to visualization
+        VIZ_BOTTOM_MARGIN = 50  # Distance from the bottom of the screen
 
         # Background styling constants
         BACKGROUND_PADDING = 30  # Padding around the visualization background
@@ -196,6 +367,9 @@ class HUD:
         TOOLTIP_MARGIN = 10
         TOOLTIP_LINE_SPACING = 0  # No extra spacing between lines
 
+        if self.properties_width < VIZ_RIGHT_MARGIN + 50:
+            self.properties_width = VIZ_RIGHT_MARGIN + 50 # Ensure properties panel is wide enough for tooltip
+
         if not hasattr(cell, 'behavioral_model'):
             return
 
@@ -206,9 +380,9 @@ class HUD:
 
         network: FlexibleNeuralNetwork = cell_brain.neural_network
 
-        # Calculate visualization position
+        # Calculate visualization position (bottom right)
         viz_x = self.screen_width - VIZ_RIGHT_MARGIN  # Right side of screen
-        viz_y = (self.screen_height // 2) - (VIZ_HEIGHT // 2)  # Centered vertically
+        viz_y = self.screen_height - VIZ_HEIGHT - VIZ_BOTTOM_MARGIN  # Above the bottom margin
 
         layer_spacing = VIZ_WIDTH // max(1, len(network.layers) - 1) if len(network.layers) > 1 else VIZ_WIDTH
 
@@ -218,6 +392,8 @@ class HUD:
         pygame.draw.rect(screen, BACKGROUND_COLOR, background_rect)
         pygame.draw.rect(screen, WHITE, background_rect, BACKGROUND_BORDER_WIDTH)
 
+        info = network.get_structure_info()
+
         # Title
         title_text = self.font.render("Neural Network", True, WHITE)
         title_rect = title_text.get_rect()
@@ -225,6 +401,13 @@ class HUD:
         title_rect.top = viz_y - TITLE_TOP_MARGIN
         screen.blit(title_text, title_rect)
 
+        # Render network cost under the title
+        cost_text = self.font.render(f"Cost: {info['network_cost']}", True, WHITE)
+        cost_rect = cost_text.get_rect()
+        cost_rect.centerx = title_rect.centerx
+        cost_rect.top = title_rect.bottom + 4  # Small gap below the title
+        screen.blit(cost_text, cost_rect)
+
         # Get current activations by running a forward pass with current inputs
         input_values = [cell_brain.inputs[key] for key in cell_brain.input_keys]
 
@@ -383,22 +566,6 @@ class HUD:
                 label_rect.bottom = viz_y + VIZ_HEIGHT + LAYER_LABEL_BOTTOM_MARGIN
                 screen.blit(label_text, label_rect)
 
-        # Draw network info
-        info = network.get_structure_info()
-        info_lines = [
-            f"Layers: {info['total_layers']}",
-            f"Neurons: {info['total_neurons']}",
-            f"Connections: {info['total_connections']}",
-            f"Network Cost: {info['network_cost']}",
-        ]
-
-        for i, line in enumerate(info_lines):
-            info_text = self.legend_font.render(line, True, WHITE)
-            info_rect = info_text.get_rect()
-            info_rect.left = viz_x
-            info_rect.top = viz_y + VIZ_HEIGHT + INFO_TEXT_TOP_MARGIN + i * INFO_TEXT_LINE_SPACING
-            screen.blit(info_text, info_rect)
-
         # --- Tooltip logic for neuron hover ---
         mouse_x, mouse_y = pygame.mouse.get_pos()
         tooltip_text = None
@@ -488,8 +655,3 @@ class HUD:
         screen.blit(header, header_rect)
         screen.blit(tps_text, tps_rect)
         screen.blit(ticks_text, ticks_rect)
-
-    def update_layout(self, window_width, window_height):
-        """Update HUD layout on window resize."""
-        self.screen_width = window_width
-        self.screen_height = window_height