Update gitignore file

Basically the finishing touches.

.gitignore

@@ -1 +1,3 @@
 *.old.*
+config.json
+p.vim

.vscode/settings.json

@@ -1,7 +0,0 @@
-{
-  "editor.tabSize": 2,
-  "editor.insertSpaces": true,
-  "editor.fontFamily": "'Operator Mono Lig', monospace",
-  "editor.fontSize": 14,
-  "editor.fontLigatures": true,
-}

credits/scene.rb

@@ -0,0 +1,44 @@
+class Credits < Scene
+  def initialize
+    super
+    @font = Gosu::Font.new(32, name: "assets/fonts/tn.ttf")
+    @small_font = Gosu::Font.new(20, name: "assets/fonts/tn.ttf")
+  end
+
+  def update(_dt)
+    # nothing needed
+  end
+
+  def draw
+    Gosu.draw_rect(0, 0, *SCREEN_SIZE, Gosu::Color.new(0xFF131313))
+
+    # title (centered)
+    title = "Credits"
+    tx = (720 - @font.text_width(title)) / 2
+    @font.draw_text(title, tx, 80, 1, 1, 1, Gosu::Color::YELLOW)
+
+    # main content
+    # this is kinda useless and i could just hardcode the positions, or even the image itself but yeah
+    lines = [
+      "Developer: Syed Daanish",
+      "Artist: Syed Daanish"
+    ]
+
+    lines.each_with_index do |line, i|
+      x = (720 - @small_font.text_width(line)) / 2
+      y = 180 + i * 40
+      @small_font.draw_text(line, x, y, 1, 1, 1, Gosu::Color::WHITE)
+    end
+
+    # hint at bottom
+    hint = "Press ESC to return"
+    hx = (720 - @small_font.text_width(hint)) / 2
+    @small_font.draw_text(hint, hx, 420, 1, 1, 1, Gosu::Color::GRAY)
+  end
+
+  def button_down(id, _pos)
+    if id == Gosu::KB_ESCAPE || id == Gosu::KB_RETURN
+      $bus.emit(:change_scene, Menu)
+    end
+  end
+end

game/character.rb

@@ -76,10 +76,10 @@ class Character
     dx = 0.0
     dy = 0.0
 
-    dx -= 1 if Gosu.button_down?(Gosu::KB_A)
+    dx -= 1 if Gosu.button_down?($bus.get(:settings, :leftward))
-    dx += 1 if Gosu.button_down?(Gosu::KB_D)
+    dx += 1 if Gosu.button_down?($bus.get(:settings, :rightward))
-    dy -= 1 if Gosu.button_down?(Gosu::KB_W)
+    dy -= 1 if Gosu.button_down?($bus.get(:settings, :forward))
-    dy += 1 if Gosu.button_down?(Gosu::KB_S)
+    dy += 1 if Gosu.button_down?($bus.get(:settings, :backward))
 
     moving = dx != 0 || dy != 0
 
@@ -122,11 +122,15 @@ class Character
       end
     end
 
-    # teleport to boss room for debug purposes
+    if $bus.get_all(:collides?, rect).include?(:trap)
+      $bus.emit(:trap_stepped_on, rect, :character)
+    end
+
+    # teleport to exit room for debug purposes
     if $bus.get(:settings, :debug) && Gosu.button_down?(Gosu::KB_T)
-      room_coords = $bus.get(:boss_room_coords)
+      room_coords = $bus.get(:exit_room_coords)
       if room_coords
-        @world_x, @world_y = [room_coords[0] * 60 + 5, room_coords[1] * 60 + 5]
+        @world_x, @world_y = [room_coords[0] * 120 + 90, room_coords[1] * 120 + 90]
       end
     end
 

game/enemy/ai.rb

@@ -1,28 +1,28 @@
 class EnemyAI
-  AGGRO_RADIUS = 2000
-  BASE_SPEED = 130.0
   CORNER_OFFSET = 35 # how far from tile center to place corner waypoint
   ATTACK_COOLDOWN = 0.2 # seconds
 
   def initialize(enemy, type)
     @enemy = enemy
     @type = type
+    @base_speed = case type
+                  when :komodo then 60
+                  when :force then 130
+                  end
     @tile_path = []    # raw tile coords from solver
     @waypoints = []    # actual world positions to move through
     @last_player_tile = nil
     @avoiding_obstacle = false
-    @speed = BASE_SPEED
+    @speed = @base_speed
     @time_since_attack = ATTACK_COOLDOWN
   end
 
-  def update(player_x, player_y, dt)
+  def update(player_x, player_y, dt, force = false)
-    distance = Math.sqrt((player_x - @enemy.x)**2 + (player_y - @enemy.y)**2)
+    distance = Math.hypot(@enemy.x - player_x, @enemy.y - player_y)
-    return unless distance < AGGRO_RADIUS
-
     if @enemy.lorentz && distance < 230
-      @speed = BASE_SPEED * 0.3
+      @speed = @base_speed * 0.3
     else
-      @speed = BASE_SPEED
+      @speed = @base_speed
     end
 
     player_tile = [(player_x - 90) / 120, (player_y - 90) / 120].map(&:round)
@@ -66,7 +66,7 @@ class EnemyAI
             [center_x - CORNER_OFFSET, center_y + CORNER_OFFSET]
           ]
 
-          closest_idx = corners.each_with_index.min_by { |c, _| Gosu.distance(c[0], c[1], @enemy.x, @enemy.y) }[1]
+          closest_idx = corners.each_with_index.min_by { |c, _| Math.hypot(c[0] - @enemy.x, c[1] - @enemy.y) }[1]
           @waypoints = corners.rotate(closest_idx)
           @avoiding_obstacle = true
         end
@@ -76,7 +76,7 @@ class EnemyAI
       end
     end
 
-    if @waypoints.empty? || @last_player_tile != player_tile
+    if force || @waypoints.empty? || @last_player_tile != player_tile
       @last_player_tile = player_tile
       @tile_path = $bus.get(:maze_solve, enemy_tile[0], enemy_tile[1], player_tile[0], player_tile[1]) || []
       if $bus.get(:prop_at, enemy_tile[0], enemy_tile[1]).nil?
@@ -132,12 +132,12 @@ class EnemyAI
         ]
 
         # first waypoint: corner closest to where we're coming from
-        first = corners.min_by { |cx, cy| Gosu.distance(cx, cy, prev_cx, prev_cy) }
+        first = corners.min_by { |cx, cy| Math.hypot(cx - prev_cx, cy - prev_cy) }
 
         # second waypoint: closest to next tile but not opposite to first
         opposite = [center_x - (first[0] - center_x), center_y - (first[1] - center_y)]
         candidates = corners.reject { |c| c == first || c == opposite }
-        second = candidates.min_by { |cx, cy| Gosu.distance(cx, cy, next_cx, next_cy) }
+        second = candidates.min_by { |cx, cy| Math.hypot(cx - next_cx, cy - next_cy) }
 
         waypoints << first
         waypoints << second

game/enemy/base.rb

@@ -20,26 +20,50 @@ class Enemy
     [@i_w, @i_h, @s]
   end
 
-  def initialize(x, y, health = 100)
+  def initialize(x, y, type, health = 100)
     @x = x
     @y = y
     @w = 25
     @h = 30
+    @max_health = health
     @health = health
+    @type = type
+    @stun = 0
+    @last_lock = :none
     @lorentz = $bus.get(:lorentz_field?) || false
 
     $bus.on(:lorentz_field!) do |lorentz|
       @lorentz = lorentz
     end
 
-    @ai = EnemyAI.new(self, :chase)
+    @ai = EnemyAI.new(self, @type)
 
     $bus.on(:collides?) do |rect|
       next collides?(rect) ? :enemy : nil
     end
+
+    $bus.on(:blast) do |x, y, radius, damage, _|
+      dist = Math.hypot(@x - x, @y - y)
+      if dist <= radius + 20
+        take_damage(damage * 2)
+      end
+    end
+
+    $bus.on(:stun)  do |x, y|
+      dist = Math.hypot(@x - x, @y - y)
+      if dist <= 100
+        @stun = 60 * 1 # stun for 1 second
+      end
+    end
   end
 
   def take_damage(amount)
+    # knockback a bit based on player position
+    player_x, player_y = $bus.get(:player_position) || [0, 0]
+    angle = Math.atan2(@y - player_y, @x - player_x)
+    knockback_distance = 10
+    @x += Math.cos(angle) * knockback_distance
+    @y += Math.sin(angle) * knockback_distance
     @health -= amount
     if @health <= 0
       $bus.emit(:enemy_died, self)
@@ -56,8 +80,24 @@ class Enemy
   end
 
   def update(dt)
+    if @stun > 0
+      @stun -= 1
+      return
+    end
+
     player_pos = $bus.get(:player_position)
-    @ai.update(*player_pos, dt) if player_pos
+    closest_event_horizon = $bus.get(:closest_event_horizon, @x, @y, 2000)
+    if closest_event_horizon
+      @ai.update(*closest_event_horizon, dt, @last_lock != :event_horizon)
+      @last_lock = :event_horizon
+    else
+      @ai.update(*player_pos, dt, @last_lock != :player) if player_pos
+      @last_lock = :player
+    end
+
+    if $bus.get_all(:collides?, rect).include?(:trap)
+      $bus.emit(:trap_stepped_on, rect, :enemy)
+    end
   end
 
   def draw
@@ -76,7 +116,8 @@ class Enemy
 
     # Health bar
 
-    health_width = (@w * @health / 100.0)
+    health_width = (@w * @health / @max_health)
+    Gosu::draw_rect(screen_x - @w / 2, screen_y - @h / 2 - 10, @w, 5, Gosu::Color.new(0xFF555555), Float::INFINITY)
     Gosu.draw_rect(screen_x - @w / 2, screen_y - @h / 2 - 10, health_width, 5, Gosu::Color.new(0xFF00FF00), Float::INFINITY)
 
     if $bus.get(:settings, :debug)

game/enemy/force.rb

@@ -4,7 +4,7 @@ class Force < Enemy
   load 'assets/images/force.png', 21, 32, 1.7
 
   def initialize(x, y)
-    super(x, y, 100)
+    super(x, y, :force, 100)
 
     $bus.on(:attack) do |attack_x, attack_y, range, damage|
       # Whoa, did'nt know ruby had hypot functions built in!

game/enemy/handler.rb

@@ -1,4 +1,5 @@
 require_relative 'force'
+require_relative 'komodo'
 
 class EnemyHandler
   def initialize
@@ -16,10 +17,11 @@ class EnemyHandler
   end
 
   def spawn!
-    # For now, just spawn a single enemy at a fixed location
+    boss_rooms = $bus.get(:boss_rooms) || []
-    start_room_coords = $bus.get(:start_room_coords)
+    if @enemies.count < 4 && rand < (1.0 / (60 * 10))
-    if @enemies.empty? && start_room_coords
+      boss_room = boss_rooms.sample
-      @enemies << Force.new((start_room_coords[0] * 2 + 1 + 4) * 60 + 30, (start_room_coords[1] * 2 + 1 + 4) * 60 + 30)
+      type = rand < 0.1 ? Komodo : Force
+      @enemies << (type).new((boss_room[0] * 2 + 4) * 60 + 30, (boss_room[1] * 2 + 4) * 60 + 30)
     end
   end
 

game/enemy/komodo.rb

@@ -0,0 +1,17 @@
+require_relative 'base'
+
+class Komodo < Enemy
+  load 'assets/images/komodo.png', 31, 48, 1.7
+
+  def initialize(x, y)
+    super(x, y, :komodo, 1000)
+
+    $bus.on(:attack) do |attack_x, attack_y, range, damage|
+      if Math.hypot(@x - attack_x, @y - attack_y) <= range
+        take_damage(damage)
+        next true
+      end
+      false
+    end
+  end
+end

game/hud/health.rb

@@ -4,12 +4,26 @@ class HealthBar
   def initialize(max_health)
     @max_health = max_health
     @health = max_health
+
+    @heart_image = Gosu::Image.new("assets/images/heart.png", retro: true)
+
+    $bus.on(:blast) do |x, y, radius, damage, safety|
+      next if safety == :safe
+
+      player_x, player_y = $bus.get(:player_position)
+
+      dist = Math.hypot(player_x - x, player_y - y)
+      if dist <= radius + 20
+        take_damage(damage)
+      end
+    end
   end
 
   def take_damage(amount)
     @health -= amount
     if @health <= 0
       @health = 0
+      $is_dead = true
       $bus.emit(:change_scene, GameOver)
     end
   end
@@ -21,10 +35,12 @@ class HealthBar
 
   def draw
     # Draw the background of the health bar (red)
-    Gosu.draw_rect(30, 10, 100, 10, Gosu::Color::RED)
+    Gosu.draw_rect(SCREEN_SIZE[0] - 100 - 10, 180, 100, 10, Gosu::Color::RED, Float::INFINITY)
 
     # Draw the foreground of the health bar (green) based on current health
     health_width = (health.to_f / max_health) * 100
-    Gosu.draw_rect(30, 10, health_width, 10, Gosu::Color::GREEN)
+    Gosu.draw_rect(SCREEN_SIZE[0] - 100 - 10, 180, health_width, 10, Gosu::Color::GREEN, Float::INFINITY)
+
+    @heart_image.draw(SCREEN_SIZE[0] - 100 - 20, 173, Float::INFINITY, 1.5, 1.5)
   end
 end

game/hud/inventory.rb

@@ -94,19 +94,19 @@ class Inventory
     when Gosu::KB_1 then @inventory_selected = :occams_razor
     when Gosu::KB_2 then @inventory_selected = :quantum_bow
     when Gosu::KB_3 then @inventory_selected = :blade_of_recursion
-    when Gosu::KB_DOWN
+    when $bus.get(:settings, :"inventory down")
       row, col = find_slot(@inventory_selected)
       @inventory_selected = @grid[(row + 1) % @grid.size][col][0]
-    when Gosu::KB_UP
+    when $bus.get(:settings, :"inventory up")
       row, col = find_slot(@inventory_selected)
       @inventory_selected = @grid[(row - 1) % @grid.size][col][0]
-    when Gosu::KB_LEFT
+    when $bus.get(:settings, :"inventory left")
       row, col = find_slot(@inventory_selected)
       @inventory_selected = @grid[row][(col - 1) % @grid[row].size][0]
-    when Gosu::KB_RIGHT
+    when $bus.get(:settings, :"inventory right")
       row, col = find_slot(@inventory_selected)
       @inventory_selected = @grid[row][(col + 1) % @grid[row].size][0]
-    when Gosu::KB_RETURN
+    when $bus.get(:settings, :craft)
       craft(@inventory_selected, ctrl: Gosu.button_down?(Gosu::KB_RIGHT_CONTROL) || Gosu.button_down?(Gosu::KB_LEFT_CONTROL))
     else
       return false

game/hud/layer.rb

@@ -1,23 +1,48 @@
 require_relative "inventory"
 require_relative "health"
+require_relative "logs"
+require_relative "minimap"
 
 class HUDLayer
   def initialize
     @hud_bg = Gosu::Image.new("assets/images/hud.png", retro: true)
     @hud_fg = Gosu::Image.new("assets/images/hud_fg.png", retro: true)
+
     @inventory = Inventory.new
     @health = HealthBar.new(100)
+    @logs = GameLogger.new
+    @minimap = Minimap.new
+
+    @direction_sprite = Gosu::Image.new("assets/images/direction.png", retro: true)
 
     $bus.on(:enemy_attack) do |damage|
       @health.take_damage(damage)
     end
   end
 
+  def update(dt)
+    @logs.update(dt)
+  end
+
   def draw
     @hud_bg.draw(0, 0, Float::INFINITY)
 
     @inventory.draw
     @health.draw
+    @logs.draw
+
+    player_x, player_y = $bus.get(:player_position) || [0, 0]
+    tile_x = ((player_x - 90) / 120).round
+    tile_y = ((player_y - 90) / 120).round
+    center_x = tile_x * 2 + 1
+    center_y = tile_y * 2 + 1
+    @minimap.draw(center_x, center_y)
+
+    if $bus.get(:radar_triangulation?, player_x, player_y)
+      exit_x, exit_y = $bus.get(:exit_room_coords) || [0, 0]
+      angle_to_exit = Math.atan2(exit_y - tile_x, exit_x - tile_y) * 180 / Math::PI
+      @direction_sprite.draw_rot(SCREEN_SIZE[0] / 2, SCREEN_SIZE[1] / 2, Float::INFINITY, angle_to_exit, 0.5, 0.5, 5, 5)
+    end
 
     @hud_fg.draw(0, 0, Float::INFINITY)
   end

game/hud/logs.rb

@@ -0,0 +1,47 @@
+class GameLogger
+  MAX_ENTRIES = 5          # max messages to show
+  DURATION = 3.0           # seconds each message stays
+
+  Entry = Struct.new(:text, :time)
+
+  def initialize
+    @entries = []
+    @font = Gosu::Font.new(10, name: 'assets/fonts/tn.ttf')
+
+    $bus.on(:log) do |msg|
+      log(msg)
+    end
+  end
+
+  # add a message
+  def log(msg)
+    @entries << Entry.new(msg, DURATION)
+    @entries.shift if @entries.size > MAX_ENTRIES
+  end
+
+  def update(dt)
+    @entries.each { |e| e.time -= dt }
+    @entries.reject! { |e| e.time <= 0 }
+  end
+
+  def draw
+    padding_x = 10
+    padding_y = 10
+    line_height = 24
+
+    # bottom-left start
+    base_x = padding_x
+    base_y = SCREEN_SIZE[1] - padding_y - line_height * @entries.size
+
+    @entries.each_with_index do |e, i|
+      @font.draw_text(
+        e.text,
+        base_x,
+        base_y + i * line_height,
+        Float::INFINITY,
+        1, 1,
+        Gosu::Color::YELLOW
+      )
+    end
+  end
+end

game/hud/minimap.rb

@@ -0,0 +1,92 @@
+class Minimap
+  CELL_SIZE = 3       # pixels per minimap cell
+  RADIUS = 10         # cells around torch to update
+
+  # Please ignore my overuse of that stupid ruby conditional assignment operator
+
+  def initialize
+    @torches = []
+    @grid_cache = {}
+
+    $bus.on(:torch_placed) do |gx, gy|
+      add_torch(gx, gy)
+    end
+
+    $bus.on(:torch_removed) do |gx, gy|
+      remove_torch(gx, gy)
+    end
+  end
+
+  def add_torch(x, y)
+    x, y = x * 2 + 1, y * 2 + 1 # convert from room coords to grid coords
+    @torches << [x, y]
+    update_grid_area(x, y)
+  end
+
+  def remove_torch(x, y)
+    x, y = x * 2 + 1, y * 2 + 1
+    @torches.delete([x, y])
+    update_grid_area(x, y)
+  end
+
+  # Update only cells in 10-cell box around given gx,gy
+  def update_grid_area(cx, cy)
+    (cx-RADIUS..cx+RADIUS).each do |gx|
+      (cy-RADIUS..cy+RADIUS).each do |gy|
+        if @torches.any? { |tx, ty| (gx - tx).abs <= RADIUS && (gy - ty).abs <= RADIUS }
+          @grid_cache[[gx, gy]] = if @torches.include?([gx, gy])
+                                    :torch
+                                  elsif $bus.get(:maze_wall?, gx, gy)
+                                    :wall
+                                  else
+                                    :empty
+                                  end
+        else
+          @grid_cache.delete([gx, gy]) 
+        end
+      end
+    end
+  end
+
+  def draw(center_x, center_y)
+    half_size = 25  # 40 cells → 20 each side
+    map_max = $bus.get(:maze_size).map { |s| s * 2 - 1 } || 0
+
+    offset_x = SCREEN_SIZE[0] - CELL_SIZE * (half_size * 2 + 1) - 10
+    offset_y = 10
+
+    size_in_cells = 2 * half_size + 1
+    width  = size_in_cells * CELL_SIZE
+    height = size_in_cells * CELL_SIZE
+
+    # border
+    Gosu.draw_rect(offset_x - 3, offset_y - 3, width + 6, height + 6, Gosu::Color.new(0xFFa9b2a2), Float::INFINITY)
+
+    (-half_size..half_size).each do |dx|
+      (-half_size..half_size).each do |dy|
+        gx = center_x + dx
+        gy = center_y + dy
+
+        type = if gx < 0 || gy < 0 || gx > map_max[0] || gy > map_max[1]
+                :wall
+              else
+                @grid_cache[[gx, gy]] || :unrevealed
+              end
+
+        color = case type
+                when :wall then Gosu::Color.new(0xFF28353e)
+                when :empty then Gosu::Color.new(0xFFd6dad3)
+                when :torch then Gosu::Color.new(0xFFfbb954)
+                else Gosu::Color.new(0xFF576069)
+                end
+
+        color = Gosu::Color::RED if gx == center_x && gy == center_y
+
+        x = (dx + half_size) * CELL_SIZE + offset_x
+        y = (dy + half_size) * CELL_SIZE + offset_y
+
+        Gosu.draw_rect(x, y, CELL_SIZE, CELL_SIZE, color, Float::INFINITY)
+      end
+    end
+  end
+end

game/hud/upgrades.rb

@@ -0,0 +1,4 @@
+class Upgrades
+  # I would do this, but I don't have time to make the artwork for it, so let's just make it a placeholder that doesn't do anything
+  #
+end

game/props/base.rb

@@ -49,7 +49,7 @@ class Prop
   end
 
   def update(dt)
-    return unless Gosu.button_down?(Gosu::MS_LEFT) || Gosu.button_down?(Gosu::KB_X)
+    return unless Gosu.button_down?(Gosu::MS_LEFT) || Gosu.button_down?($bus.get(:settings, :break))
 
     player_x, player_y = $bus.get(:player_position) || [0, 0]
 

game/props/handler.rb

@@ -22,6 +22,34 @@ class PropsHandler
     $bus.on(:nearby_torches) do |rect|
       nearby_props(rect).select { |p| p.is_a?(Torch) }.map(&:rect).map { |t| [t[0] + t[2] / 2, t[1] + t[3] / 2] }
     end
+
+    $bus.on(:radar_triangulation?) do |player_x, player_y|
+      radar_triangulation?(player_x, player_y)
+    end
+  end
+
+  def radar_triangulation?(player_x, player_y)
+    # small rect around player to find the first radar
+    small_rect = [player_x - 60, player_y - 60, 120, 120] # 1 block radius
+    first_radar = nearby_props(small_rect).find { |p| p.is_a?(Radar) }
+    return false unless first_radar
+
+    # larger rect to find other radars (max 15 blocks away, 15*120 pixels)
+    large_rect = [first_radar.x * 120 - 15 * 120, first_radar.y * 120 - 15 * 120, 30 * 120, 30 * 120]
+    nearby_radars = nearby_props(large_rect).select { |p| p.is_a?(Radar) }
+
+    # need at least 3 radars total
+    return false if nearby_radars.size < 3
+
+    nearby_radars.combination(3).any? do |r1, r2, r3|
+      next unless r1 == first_radar || r2 == first_radar || r3 == first_radar
+
+      d1 = Math.hypot((r1.x - r2.x), (r1.y - r2.y))
+      d2 = Math.hypot((r1.x - r3.x), (r1.y - r3.y))
+      d3 = Math.hypot((r2.x - r3.x), (r2.y - r3.y))
+
+      [d1, d2, d3].all? { |d| d >= 3 && d <= 15 }
+    end
   end
 
   def spawn_chests!
@@ -49,7 +77,7 @@ class PropsHandler
       end
     end
 
-    # Add one in the start room for players to have something to interact with right away
+    # Add one in the start room for players to have something right away
     start_room_x, start_room_y = $bus.get(:start_room_coords) || [0, 0]
     x, y = [
       [start_room_x, start_room_y],
@@ -94,7 +122,7 @@ class PropsHandler
         @grid.delete([prop.x, prop.y])
       end
     end
-    if Gosu.button_down?(Gosu::KB_P) # place selected if it is a placeable item
+    if Gosu.button_down?($bus.get(:settings, :place))
       selected_item = $bus.get(:selected_item)
       if selected_item == :torch
         player_x, player_y = $bus.get(:player_position) || [0, 0]
@@ -103,6 +131,7 @@ class PropsHandler
         return if @grid[[tile[0], tile[1]]] # can't place if something is already there
         return if $bus.get_all(:collides?, torch.collision_rect).include?(:character) # can't place if colliding with player
         return unless $bus.get(:consume, :torch, 1)
+        $bus.emit(:torch_placed, torch.x, torch.y)
         add(torch)
       elsif selected_item == :radar
         player_x, player_y = $bus.get(:player_position) || [0, 0]

game/props/torch.rb

@@ -6,4 +6,13 @@ class Torch < Prop
   def resources
     { wood: rand(0..8) }
   end
+
+  def update(dt)
+    dead = super(dt)
+    if dead
+      $bus.emit(:torch_removed, @x, @y)
+      pp "Emitted torch_removed for torch at #{@x}, #{@y}"
+    end
+    dead
+  end
 end

game/scene.rb

@@ -3,24 +3,32 @@ require_relative 'hud/layer'
 require_relative 'props/handler'
 require_relative 'enemy/handler'
 require_relative 'weapons/handler'
+require_relative 'traps/handler'
 require_relative 'character'
 
 class Game < Scene
   def initialize
     super
+    $is_dead = false
+
     @font = Gosu::Font.new(24)
     @floor_image = Gosu::Image.new("assets/images/floor.png", retro: true)
 
+    @blasted = 0
+
     @maze = Maze.new
     @character = Character.new
     @enemies = EnemyHandler.new
     @props = PropsHandler.new
     @weapons = WeaponHandler.new
+    @traps = TrapHandler.new
 
     @hud = HUDLayer.new
 
     @camera = [0, 0]
 
+    $bus.emit(:log, "Welcome to the Mist!")
+
     $bus.on(:player_move) do |pos|
       @camera = pos
     end
@@ -28,15 +36,26 @@ class Game < Scene
     $bus.on(:camera_pos) do
       next @camera
     end
+
+    $bus.on(:blast) do |_|
+      @blasted = 10 # blast for 10 frames
+    end
   end
 
   def draw
+    if @blasted != 0
+      # this is a terrible animation for blasting but that would require me to work on artwork and I don't have time for that, so let's just flash the screen white and fade it out
+      Gosu.draw_rect(0, 0, *SCREEN_SIZE, Gosu::Color.new(@blasted * 255 / 10, 255, 255, 255), Float::INFINITY)
+      @blasted -= 1
+      return
+    end
     draw_floor
     @maze.draw
     @character.draw
     @enemies.draw
     @props.draw
-    $bus.emit(:shade) if $bus.get(:settings, :fog)
+    @traps.draw
+    $bus.emit(:shade)
     @hud.draw
     @weapons.draw
     draw_debug! if $bus.get(:settings, :debug)
@@ -71,15 +90,19 @@ class Game < Scene
     @character.update(dt)
     @enemies.update(dt)
     @props.update(dt)
+    @traps.update(dt)
     @weapons.update(dt)
+    @hud.update(dt)
   end
 
   def button_down(id, pos)
-    return $bus.emit(:change_scene, Menu.new) if id == Gosu::KB_ESCAPE
+    # Pressing ESC returns to the menu, this is bad but I don't have time to make a proper pause menu,
+    # as the game has no persistent state outside of the current scene, just returning to the menu resets everything
+    return $bus.emit(:change_scene, Menu) if id == Gosu::KB_ESCAPE
 
     return if @hud.button_down(id, pos)
     return if @props.button_down(id, pos)
-    #return if @weapons.button_down(id, pos)
+    return if @weapons.button_down(id, pos)
 
     #@character.button_down(id)
   end

game/traps/base.rb

@@ -0,0 +1,30 @@
+class Trap
+  SIZE = [40, 40].freeze
+
+  attr_reader :x, :y
+  
+  def initialize(x, y)
+    @x = x
+    @y = y
+    @sprite = nil
+  end
+
+  def collides?(rect)
+    return intersects?(collision_rect, rect)
+  end
+
+  def collision_rect
+    [@x - SIZE[0] / 2, @y - SIZE[1] / 2, *SIZE]
+  end
+
+  def update(player)
+    # the collision is checked by the player or enemy
+  end
+
+  def draw
+    return unless @sprite
+
+    cam_x, cam_y = $bus.get(:camera_pos) || [0, 0]
+    @sprite.draw(@x - SIZE[0] / 2 - cam_x, @y - SIZE[1] / 2 - cam_y, 0, 2, 2)
+  end
+end

game/traps/event_horizon.rb

@@ -0,0 +1,15 @@
+require_relative 'base'
+
+class EventHorizon < Trap
+  def initialize(x, y)
+    super(x, y)
+    @sprite = Gosu::Image.new("assets/images/event_horizon.png", retro: true)
+  end
+
+  def stepped_on(entity)
+    # this is not a weapon, so nothing
+    # it is instead destroyed after after being stepped on by enemy
+    $bus.emit(:stun, @x, @y)
+    entity == :enemy
+  end
+end

game/traps/handler.rb

@@ -0,0 +1,129 @@
+require_relative 'landmine'
+require_relative 'shrodingers_mine'
+require_relative 'event_horizon'
+
+class TrapHandler
+  def initialize
+    # traps are stored in a grid for efficient collision checking
+    # can write in report about trying to use an array and how it was too slow to check every trap for collisions, so we switched to a grid where each cell is 120x120, blah blah
+    @grid = {}
+
+    $bus.on(:collides?) do |rect|
+      nearby_traps(rect).any? { |t| t.collides?(rect) } ? :trap : nil
+    end
+
+    $bus.on(:trap_stepped_on) do |rect, entity|
+      nearby_traps(rect).each do |t|
+        t.collides?(rect) && t.stepped_on(entity) && @grid[[(t.x / 120).floor, (t.y / 120).floor]].delete(t) # remove the trap if stepped on
+      end
+    end
+
+    $bus.on(:closest_event_horizon) do |x, y, range|
+      # this abomination is to find the closest event horizon within range, we can optimize this later if needed but for now it works
+      nearby_traps([x - range, y - range, range * 2, range * 2])
+        .select { |t| t.is_a?(EventHorizon) }
+        .map { |t| [t, Math.hypot(t.x - x, t.y - y)] }
+        .select { |_, d| d <= range }
+        .min_by { |_, d| d }
+        &.first&.then { |e| [e.x, e.y] }
+    end
+  end
+
+  def add(trap)
+    tx = (trap.x / 120).floor
+    ty = (trap.y / 120).floor
+
+    @grid[[tx, ty]] ||= []
+    @grid[[tx, ty]] << trap
+  end
+
+  def update dt
+    # allow placing traps by the player
+    if Gosu.button_down?(Gosu::MS_LEFT)
+      selected_item = $bus.get(:selected_item)
+      if selected_item == :landmine
+        mouse_x, mouse_y = $bus.get(:mouse_pos) || [0, 0]
+        player_x, player_y = $bus.get(:player_position) || [0, 0]
+        cam_x, cam_y = $bus.get(:camera_pos) || [0, 0]
+        world_x = mouse_x + cam_x
+        world_y = mouse_y + cam_y
+        landmine = Landmine.new(world_x, world_y)
+        return if Math.hypot(landmine.x - player_x, landmine.y - player_y) > 200 # can't place if too far from player
+        return if ($bus.get_all(:collides?, landmine.collision_rect) & [:character, :prop, :trap, :wall]).any?
+        return unless $bus.get(:consume, :landmine, 1)
+        add(landmine)
+      elsif selected_item == :shrodingers_mine
+        mouse_x, mouse_y = $bus.get(:mouse_pos) || [0, 0]
+        player_x, player_y = $bus.get(:player_position) || [0, 0]
+        cam_x, cam_y = $bus.get(:camera_pos) || [0, 0]
+        world_x = mouse_x + cam_x
+        world_y = mouse_y + cam_y
+        mine = ShrodingersMine.new(world_x, world_y)
+        return if Math.hypot(mine.x - player_x, mine.y - player_y) > 200
+        return if ($bus.get_all(:collides?, mine.collision_rect) & [:character, :prop, :trap, :wall]).any?
+        return unless $bus.get(:consume, :shrodingers_mine, 1)
+        add(mine)
+      elsif selected_item == :event_horizon
+        mouse_x, mouse_y = $bus.get(:mouse_pos) || [0, 0]
+        player_x, player_y = $bus.get(:player_position) || [0, 0]
+        cam_x, cam_y = $bus.get(:camera_pos) || [0, 0]
+        world_x = mouse_x + cam_x
+        world_y = mouse_y + cam_y
+        event_horizon = EventHorizon.new(world_x, world_y)
+        return if Math.hypot(world_x - player_x, world_y - player_y) > 200
+        return if ($bus.get_all(:collides?, event_horizon.collision_rect) & [:character, :prop, :trap, :wall]).any?
+        return unless $bus.get(:consume, :event_horizon, 1)
+        add(event_horizon)
+      end
+    end
+  end
+
+  def nearby_traps(rect)
+    x, y, w, h = rect
+
+    min_tx = ((x) / 120).floor
+    max_tx = ((x + w) / 120).floor
+    min_ty = ((y) / 120).floor
+    max_ty = ((y + h) / 120).floor
+
+    results = []
+
+    (min_tx..max_tx).each do |tx|
+      (min_ty..max_ty).each do |ty|
+        t = @grid[[tx, ty]]
+        results.concat(t) if t
+      end
+    end
+
+    results
+  end
+
+  def draw
+    cam = $bus.get(:camera_pos) || [0, 0]
+    nearby_traps([*cam, *SCREEN_SIZE]).each(&:draw)
+    draw_ghost_traps!
+  end
+
+  def draw_ghost_traps!
+    selected_item = $bus.get(:selected_item)
+    return unless [:landmine, :shrodingers_mine, :event_horizon].include?(selected_item) # only draw if selected item is a placeable trap
+    return unless $bus.get(:count, selected_item) > 0 # only draw if player has at least 1 landmine
+
+    mouse_x, mouse_y = $bus.get(:mouse_pos) || [0, 0]
+    cam_x, cam_y = $bus.get(:camera_pos) || [0, 0]
+    world_x = mouse_x + cam_x
+    world_y = mouse_y + cam_y
+
+    color = Gosu::Color.new(128, 255, 255, 255)
+    player_x, player_y = $bus.get(:player_position) || [0, 0]
+    if Math.hypot(world_x - player_x, world_y - player_y) > 100 ||
+       ($bus.get_all(:collides?, [world_x - 20, world_y - 20, 40, 40]) & [:character, :prop, :trap, :wall]).any?
+      color = Gosu::Color.new(128, 255, 0, 0) # red if too far
+    elsif nearby_traps([world_x - 20, world_y - 20, 40, 40]).any? { |t| t.collides?([world_x - 20, world_y - 20, 40, 40]) }
+      color = Gosu::Color.new(128, 255, 255, 0) # yellow if colliding with another trap
+    end
+
+    ghost_sprite = Gosu::Image.new("assets/images/#{selected_item}.png", retro: true)
+    ghost_sprite.draw(world_x - 20 - cam_x, world_y - 20 - cam_y, 0, 2, 2, color)
+  end
+end

game/traps/landmine.rb

@@ -0,0 +1,13 @@
+require_relative 'base'
+
+class Landmine < Trap
+  def initialize(x, y)
+    super(x, y)
+    @sprite = Gosu::Image.new("assets/images/landmine.png", retro: true)
+  end
+
+  def stepped_on(_)
+    $bus.emit(:blast, @x, @y, 30, 30, :unsafe) # blast radius of 30 and damage of 30, and mark it as unsafe for the player
+    true # to destroy the trap
+  end
+end

game/traps/shrodingers_mine.rb

@@ -0,0 +1,18 @@
+require_relative 'base'
+
+class ShrodingersMine < Trap
+  def initialize(x, y)
+    super(x, y)
+    @sprite = Gosu::Image.new("assets/images/shrodingers_mine.png", retro: true)
+  end
+
+  def stepped_on(entity)
+    return false if entity == :character # shrodingers mine is safe for the player, so don't destroy it or cause a blast if the player steps on it
+    if rand < 0.7 # 70% chance to be a landmine, 30% chance to be a dud
+      $bus.emit(:blast, @x, @y, 50, 50, :safe) # blast radius of 50 and damage of 50, and always safe for the player
+    else
+      $bus.emit(:log, "You hear a click, but nothing happens. It was a dud!")
+    end
+    true # to destroy the trap
+  end
+end

game/weapons/blade_of_recursion.rb

@@ -1,16 +1,25 @@
 class BladeOfRecursion
   def initialize
     @damage = 1
-    @range = 200
+    @range = 150
-    @speed = 500
+    @speed = 400
     @x = 0
     @y = 0
+    @start_x = 0
+    @start_y = 0
     @direction = nil
+
+    # the knife is pointed top-right
+    @sprite = Gosu::Image.new('assets/images/blade_of_recursion.png', retro: true)
+
+    @memory_sprite = Gosu::Image.new('assets/images/memory.png', retro: true)
   end
 
   def attack(direction)
+    return if @direction
     @direction = direction
     @x, @y = $bus.get(:player_position)
+    @start_x, @start_y = @x, @y
   end
 
   def update(dt)
@@ -19,12 +28,64 @@ class BladeOfRecursion
     @x += Math.cos(@direction) * @speed * dt
     @y += Math.sin(@direction) * @speed * dt
 
-    $bus.get(:attack, @x, @y, @range, @damage)
+    if Math.hypot(@x - @start_x, @y - @start_y) > @range
-
-    # If the blade has traveled its max range, reset it
-    player_x, player_y = $bus.get(:player_position)
-    if Math.hypot(@x - player_x, @y - player_y) > @range
       @direction = nil
+      @damage = 1
+      return
     end
+
+    collides = $bus.get_all(:collides?, [@x - 5, @y - 5, 10, 10])
+    if collides.include?(:enemy)
+      $bus.emit(:attack, @x, @y, 30, @damage)
+      @direction = nil
+      @damage *= 2
+      if @damage > 512
+        damage = 1
+        $bus.emit(:consume, :blade_of_recursion, 1)
+      end
+    elsif collides.include?(:wall)
+      @direction = nil
+      @damage = 1
+    end
+  end
+
+  def draw
+    cam_x, cam_y = $bus.get(:camera_pos) || [0, 0]
+
+    # Draw the blade if active
+    if @direction
+      # Convert radians to degrees
+      angle_deg = @direction * 180 / Math::PI
+      # Adjust for knife pointing top-right
+      angle_deg += 45
+
+      @sprite.draw_rot(
+        @x - cam_x,  # x in world coords
+        @y - cam_y,  # y in world coords
+        1,           # z-order
+        angle_deg,   # rotation
+        0.5, 0.5,   # pivot center
+        2, 2,
+        Gosu::Color::WHITE
+      )
+    end
+
+    # Draw memory bar as HUD in top-right of screen
+    # this should be in the HUD layer but due to time constraints im putting it here, sorry
+    bar_width  = 100
+    bar_height = 10
+
+    bar_x = SCREEN_SIZE[0] - bar_width - 10
+    bar_y = 205
+
+    # full red background
+    Gosu.draw_rect(bar_x, bar_y, bar_width, bar_height, Gosu::Color::RED, Float::INFINITY)
+
+    # green foreground representing current damage
+    damage_ratio = Math.log2(@damage) / 9.0
+    damage_width = bar_width * [damage_ratio, 1.0].min
+    Gosu.draw_rect(bar_x, bar_y, damage_width, bar_height, Gosu::Color::GREEN, Float::INFINITY)
+
+    @memory_sprite.draw(bar_x - 10, bar_y - 7, Float::INFINITY, 1.5, 1.5)
   end
 end

game/weapons/handler.rb

@@ -1,39 +1,45 @@
 require_relative 'lorentz_field'
 require_relative 'occams_razor'
-#require_relative 'quantum_bow'
+require_relative 'quantum_bow'
-#require_relative 'blade_of_recursion'
+require_relative 'blade_of_recursion'
 
 class WeaponHandler
   def initialize
     @weapons = {
       lorentz_field: LorentzField.new,
       occams_razor: OccamsRazor.new,
-      #quantum_bow: QuantumBow.new,
+      quantum_bow: QuantumBow.new,
-      #blade_of_recursion: BladeOfRecursion.new
+      blade_of_recursion: BladeOfRecursion.new
     }
   end
 
   def update(dt)
     @weapons.each_value { |weapon| weapon.update(dt) }
-
-    selected_item = $bus.get(:selected_item)
-    return unless @weapons.key?(selected_item)
-
-    weapon = @weapons[selected_item]
-    if $bus.get(:count, selected_item) > 0
-      if Gosu.button_down?(Gosu::KB_SPACE)
-        direction = $bus.get(:player_direction)
-        weapon.attack(direction)
-      elsif Gosu.button_down?(Gosu::MS_LEFT)
-        player_x, player_y = $bus.get(:player_position)
-        mouse_x, mouse_y = $bus.get(:mouse_position)
-        direction = Math.atan2(mouse_y - player_y, mouse_x - player_x)
-        weapon.attack(direction)
-      end
-    end
   end
 
   def draw
     @weapons.each_value(&:draw)
   end
+
+  def button_down(id, pos)
+    selected_item = $bus.get(:selected_item)
+    return unless @weapons.key?(selected_item)
+
+    weapon = @weapons[selected_item]
+    if $bus.get(:count, selected_item) > 0
+      if id == $bus.get(:settings, :attack)
+        player_x, player_y = $bus.get(:player_position)
+        cam_x, cam_y = $bus.get(:camera_pos) || [0, 0]
+        mouse_x, mouse_y = $bus.get(:mouse_pos) || [0, 0]
+        direction = Math.atan2((mouse_y + cam_y - player_y), (mouse_x + cam_x - player_x))
+        weapon.attack(direction)
+      elsif id == Gosu::MS_LEFT
+        player_x, player_y = $bus.get(:player_position)
+        cam_x, cam_y = $bus.get(:camera_pos) || [0, 0]
+        mouse_x, mouse_y = pos
+        direction = Math.atan2((mouse_y + cam_y - player_y), (mouse_x + cam_x - player_x))
+        weapon.attack(direction)
+      end
+    end
+  end
 end

game/weapons/lorentz_field.rb

@@ -1,17 +1,16 @@
 class LorentzField
   BASE_TIME = 25 # Base time for the field to be active in seconds
 
-  def initialize(bus)
+  def initialize
-    @bus = bus
     @time = 0
     @active = false
     @font = Gosu::Font.new(24, name: "assets/fonts/tn.ttf")
 
-    @bus.on(:lorentz_field?) do
+    $bus.on(:lorentz_field?) do
       next @active
     end
 
-    @bus.on(:lorentz_field) do
+    $bus.on(:lorentz_field) do
       if @active
         t = @time
         remaining = BASE_TIME - t
@@ -34,10 +33,10 @@ class LorentzField
 
   def attack(_direction)
     return if @active
-    @bus.emit(:consume, :lorentz_field, 1)
+    $bus.emit(:consume, :lorentz_field, 1)
     @active = true
     @time = 0
-    @bus.emit(:lorentz_field!, true)
+    $bus.emit(:lorentz_field!, true)
   end
 
   def update(dt)
@@ -47,7 +46,7 @@ class LorentzField
     if @time >= BASE_TIME
       @time = 0
       @active = false
-      @bus.emit(:lorentz_field!, false)
+      $bus.emit(:lorentz_field!, false)
     end
   end
 

game/weapons/occams_razor.rb

@@ -8,12 +8,15 @@ class OccamsRazor
     @range = 45 # how many pixels from player center to enemy center the attack hits, this is a melee weapon so it should be small
   end
 
-  def attack(_direction)
+  def attack(direction)
     return if @active
 
     @active = true
     @time = BASE_TIME
 
+    @direction = direction # radians
+    @spread = Math::PI # 90° total arc
+
     # Check for enemies in range and deal damage
     player_x, player_y = $bus.get(:player_position)
     $bus.emit(:attack, player_x, player_y, @range, @damage)
@@ -23,6 +26,10 @@ class OccamsRazor
     return unless @active
 
     @time -= dt
+
+    progress = @time / BASE_TIME
+    @spread = (Math::PI) * progress
+
     if @time <= 0
       @active = false
       @time = 0
@@ -30,6 +37,27 @@ class OccamsRazor
   end
 
   def draw
-    # Nothing for now, but player attack animation would go here
+    return unless @active
+
+    px, py = $bus.get(:player_position)
+    cam_x, cam_y = $bus.get(:camera_pos) || [0, 0]
+
+    cx = px - cam_x
+    cy = py - cam_y
+
+    step = 0.1 # radians (~6°)
+
+    angle_start = @direction - @spread
+    angle_end   = @direction + @spread
+
+    alpha = ((@time / BASE_TIME) * 255).to_i
+    color = Gosu::Color.new(alpha, 255, 255, 255)
+
+    (angle_start..angle_end).step(step) do |rad|
+      x = cx + Math.cos(rad) * @range
+      y = cy + Math.sin(rad) * @range
+
+      Gosu.draw_rect(x, y, 4, 4, color, Float::INFINITY)
+    end
   end
 end

game/weapons/quantum_bow.rb

@@ -0,0 +1,79 @@
+class QuantumBow
+  ARROW_SPEED = 700
+  LOW_DAMAGE  = 10
+  HIGH_DAMAGE = 50
+  FACING_THRESHOLD = Math::PI / 2.0  # 90° in radians
+
+  def initialize
+    @arrows = []
+    #@sprite = Gosu::Image.new('assets/images/quantum_bow.png', retro: true)
+    @arrow_sprite = Gosu::Image.new('assets/images/arrow.png', retro: true)
+  end
+
+  def clamp_angle(intended, player)
+    # it takes the direction from the attack function and only allows attacks facing forwards from the player,
+    # and if it is not in 90 deg from players direction then it will return the extreme angle possible else the intended angle
+    angle_diff = ((intended - player + Math::PI) % (2 * Math::PI)) - Math::PI
+    if angle_diff > FACING_THRESHOLD
+      return player + FACING_THRESHOLD
+    elsif angle_diff < -FACING_THRESHOLD
+      return player - FACING_THRESHOLD
+    else
+      return intended
+    end
+  end
+
+  def attack(direction)
+    player_x, player_y = $bus.get(:player_position)
+    return unless $bus.get(:consume, :wood, 3) && $bus.get(:consume, :metal, 1)
+
+    @arrows << { x: player_x, y: player_y, direction: clamp_angle(direction, $bus.get(:player_direction)) }
+  end
+
+  def update(dt)
+    player_x, player_y = $bus.get(:player_position)
+    player_dir = $bus.get(:player_direction)
+
+    @arrows.each do |arrow|
+      arrow[:x] += Math.cos(arrow[:direction]) * ARROW_SPEED * dt
+      arrow[:y] += Math.sin(arrow[:direction]) * ARROW_SPEED * dt
+
+      rect = [arrow[:x] - 5, arrow[:y] - 2, 10, 4]
+      collides = $bus.get_all(:collides?, rect)
+
+      if collides.include?(:enemy)
+        # compute if player is facing the arrow
+        vec_x = arrow[:x] - player_x
+        vec_y = arrow[:y] - player_y
+        angle_to_arrow = Math.atan2(vec_y, vec_x)
+        angle_diff = ((angle_to_arrow - player_dir + Math::PI) % (2 * Math::PI)) - Math::PI
+        angle_diff = angle_diff.abs
+
+        if angle_diff > FACING_THRESHOLD
+          $bus.emit(:blast, arrow[:x], arrow[:y], 30, HIGH_DAMAGE, :safe)
+        else
+          $bus.emit(:attack, arrow[:x], arrow[:y], 30, LOW_DAMAGE)
+        end
+
+        arrow[:hit] = true
+      elsif collides.include?(:wall)
+        arrow[:hit] = true
+      end
+    end
+
+    @arrows.reject! { |a| a[:hit] }
+  end
+
+  def draw
+    cam_x, cam_y = $bus.get(:camera_pos) || [0, 0]
+
+    @arrows.each do |arrow|
+      angle_deg = arrow[:direction] * 180 / Math::PI
+      angle_deg -= 45 + 180
+      @arrow_sprite.draw_rot(arrow[:x] - cam_x, arrow[:y] - cam_y, 1, angle_deg, 0.5, 0.5, 2, 2, Gosu::Color::WHITE)
+    end
+
+    #player_x, player_y = $bus.get(:player_position)
+    #@sprite.draw(player_x - cam_x - 16, player_y - cam_y - 16, 1)
+  end
+end

game_over/scene.rb

@@ -8,7 +8,7 @@ class GameOver < Scene
     super
     @font = Gosu::Font.new(32, name: "assets/fonts/tn.ttf")
     @selected_index = 0
-    @bg_image = Gosu::Image.new("assets/images/game_over_bg.png", retro: true)
+    @bg_image = Gosu::Image.new("assets/images/game_over_#{$is_dead ? 'dead' : 'victory'}_bg.png", retro: true)
     @last_mouse_pos = nil
   end
 
@@ -27,7 +27,7 @@ class GameOver < Scene
     @bg_image.draw(0, 0, 1)
 
     OPTIONS.each_with_index do |(text, _), index|
-      y = 260 + index * 50
+      y = 360 + index * 50
       if index == @selected_index
         @font.draw_text("[ #{text.ljust(10)} ]", 50, y, 1, 1, 1, Gosu::Color::YELLOW)
       else
@@ -56,7 +56,7 @@ class GameOver < Scene
 
   def item_at(pos)
     OPTIONS.each_with_index do |(_, action), index|
-      y = 260 + index * 50
+      y = 360 + index * 50
       if pos[1].between?(y, y + 32) && pos[0].between?(50, 50 + @font.text_width(" " * 14))
         return [index, action]
       end

menu/scene.rb

@@ -2,6 +2,7 @@ class Menu < Scene
   OPTIONS = {
     "Start" => -> { $bus.emit(:change_scene, Game) },
     "Settings" => -> { $bus.emit(:change_scene, Settings) },
+    "Credits" => -> { $bus.emit(:change_scene, Credits) },
     "Quit" => -> { $bus.emit(:quit_game) }
   }.freeze
 

settings/configuration.rb

@@ -5,28 +5,55 @@ N, S, W, E = 1, 2, 4, 8
 
 # Config module to hold global settings that can be toggled in the settings scene, and accessed anywhere else in the code via the event bus
 module Config
-  @config = {
+  @debug = false
-    debug: ARGV.include?("--debug"),
+
-    fog: true,
+  @keybinds = {
-    torches_lightup: true,
+    forward: Gosu::KB_W,
+    backward: Gosu::KB_S,
+    leftward: Gosu::KB_A,
+    rightward: Gosu::KB_D,
+    break: Gosu::KB_X,
+    attack: Gosu::KB_SPACE,
+    place: Gosu::KB_P,
+    "inventory up": Gosu::KB_UP,
+    "inventory down": Gosu::KB_DOWN,
+    "inventory right": Gosu::KB_RIGHT,
+    "inventory left": Gosu::KB_LEFT,
+    craft: Gosu::KB_RETURN,
   }
 
   if File.exist?("config.json")
     data = JSON.parse(File.read("config.json"))
-    @config.merge!(data.transform_keys(&:to_sym))
+    @debug = data["debug"] || false
+    @keybinds.merge!(data["keybinds"]&.transform_keys(&:to_sym) || {})
   end
 
-  $bus.on(:settings, :master) { |k| @config[k] }
+  $bus.on(:settings, :master) { |k| k == :debug ? @debug : @keybinds[k] }
 
   module_function
 
-  def toggle(key)
+  def bindings
-    @config[key] = !@config[key]
+    @keybinds
+  end
+
+  def debug
+    @debug
+  end
+
+  def debug=(value)
+    @debug = value
+  end
+
+  def set_key(action, key)
+    @keybinds[action] = key
   end
 
   def persist!
     File.open("config.json", "w") do |f|
-      f.write(JSON.pretty_generate(@config))
+      f.write(JSON.pretty_generate({
+        keybinds: @keybinds,
+        debug: @debug
+      }))
     end
   end
 end

settings/scene.rb

@@ -1,15 +1,76 @@
 class Settings < Scene
   def initialize
     super
-    @font = Gosu::Font.new(24)
+    @font_title = Gosu::Font.new(28, name: "assets/fonts/tn.ttf")
+    @font = Gosu::Font.new(20, name: "assets/fonts/tn.ttf")
+    @selected = 0
+    @waiting_for_key = nil
   end
 
   def draw
-    Gosu.draw_rect(0, 0, SCREEN_SIZE[0], SCREEN_SIZE[1], Gosu::Color::BLACK)
+    Gosu.draw_rect(0, 0, *SCREEN_SIZE, Gosu::Color.new(0xFF131313))
-    @font.draw_text("Settings Scene - Press ESC to return to Menu", 50, 50, 1, 1, 1, Gosu::Color::WHITE)
+
+    title = "Settings"
+    @font_title.draw_text(title, center_x(title), 40, 1, 1, 1, Gosu::Color::YELLOW)
+
+    debug_option = "Debug Mode".ljust(15) + " : " + "#{Config.debug ? 'ON' : 'OFF'}".rjust(12)
+    debug_option = "> #{debug_option} <" if @selected == 0
+    @font.draw_text(debug_option, center_x(debug_option), 90, 1, 1, 1, @selected == 0 ? Gosu::Color::YELLOW : Gosu::Color::WHITE)
+
+    Config.bindings.each_with_index do |opt, i|
+      y = 120 + i * 25
+      selected = (i == @selected - 1)
+
+      text = "#{opt[0].to_s.ljust(15)} : #{Gosu.button_name(opt[1]).rjust(12)}"
+      text = "> #{text} <" if selected
+
+      color = selected ? Gosu::Color::YELLOW : Gosu::Color::WHITE
+      @font.draw_text(text, center_x(text), y, 1, 1, 1, color)
+    end
+
+    if @waiting_for_key
+      msg = "Press a key... (ESC to cancel)"
+      @font.draw_text(msg, center_x(msg), 430, 1, 1, 1, Gosu::Color::GRAY)
+    else
+      hint = "Enter: Select | ESC: Back"
+      @font.draw_text(hint, center_x(hint), 430, 1, 1, 1, Gosu::Color::GRAY)
+    end
   end
 
   def button_down(id, _pos)
-    $bus.emit(:change_scene, Menu.new) if id == Gosu::KB_ESCAPE
+    # waiting for keybind input
+    if @waiting_for_key
+      if [Gosu::KB_ESCAPE].include?(id)
+        @waiting_for_key = nil
+        return
+      end
+      Config.set_key(@waiting_for_key, id)
+      Config.persist!
+      @waiting_for_key = nil
+      return
+    end
+
+    case id
+    when Gosu::KB_UP
+      @selected = (@selected - 1) % (Config.bindings.size + 1)
+    when Gosu::KB_DOWN
+      @selected = (@selected + 1) % (Config.bindings.size + 1)
+    when Gosu::KB_RETURN
+      if @selected == 0
+        Config.debug = !Config.debug
+        Config.persist!
+      else
+        @waiting_for_key = Config.bindings.keys[@selected]
+      end
+    when Gosu::KB_ESCAPE
+      Config.persist!
+      $bus.emit(:change_scene, Menu)
+    end
+  end
+
+  private
+
+  def center_x(text)
+    (SCREEN_SIZE[0] - @font.text_width(text)) / 2
   end
 end

utils/bus.rb

@@ -17,21 +17,6 @@ class EventBus
     @events[event] << { callback: callback, owner: owner }
   end
 
-  # Subscribe to an event that should only be called once
-  def once(event, owner = nil, &callback)
-    wrapper = nil
-    wrapper = proc do |*args|
-      callback.call(*args)
-      off(event, &wrapper)
-    end
-    on(event, owner: owner, &wrapper)
-  end
-
-  # Unsubscribe from an event
-  def off(event, &callback)
-    @events[event].reject! { |h| h[:callback] == callback }
-  end
-
   # For events that return a value (e.g. queries), get the first non-nil response
   def get(event, *args)
     @events[event].dup.each do |h|

utils/maze.rb

@@ -7,6 +7,7 @@ class MazeData
 
     @boss_rooms = []
     @start_room = nil
+    @exit_room = nil
 
     crate_rooms!
     carve_passages_from(0, 0)
@@ -19,19 +20,36 @@ class MazeData
       next @start_room
     end
 
+    $bus.on(:exit_room_coords) do
+      next @exit_room
+    end
+
     $bus.on(:room?) do |gx, gy|
-      ([@start_room] + @boss_rooms).any? do |rx, ry|
+      ([@start_room, @exit_room] + @boss_rooms).any? do |rx, ry|
         gx.between?(rx, rx + BOSS_ROOM_SIZE) &&
         gy.between?(ry, ry + BOSS_ROOM_SIZE)
       end
     end
 
+    $bus.on(:boss_rooms) do
+      next @boss_rooms
+    end
+
+    $bus.on(:maze_wall?) do |gx, gy|
+      next wall_at?(gx, gy)
+    end
+
+    $bus.on(:torch_placed) do |gx, gy|
+      # check for end condition, if torch is placed in exit room, change scene to victory
+      if (gx.between?(@exit_room[0], @exit_room[0] + BOSS_ROOM_SIZE - 1) &&
+          gy.between?(@exit_room[1], @exit_room[1] + BOSS_ROOM_SIZE - 1))
+        $bus.emit(:change_scene, GameOver)
+      end
+    end
+
     return unless $bus.get(:settings, :debug)
 
     print_debug
-    $bus.on(:boss_room_coords) do
-      next @boss_rooms.first ? [@boss_rooms.first[0] * 2 + 1, @boss_rooms.first[1] * 2 + 1] : nil
-    end
   end
  
   def solve(x1, y1, x2, y2)
@@ -112,7 +130,7 @@ class MazeData
   def wall_at?(gx, gy)
     return true if gx == 0 || gy == 0 || gx == width - 1 || gy == height - 1
 
-    @boss_rooms.each do |rx, ry|
+    (@boss_rooms + [@start_room, @exit_room]).each do |rx, ry|
       display_x1 = rx * 2 + 1
       display_y1 = ry * 2 + 1
       display_x2 = display_x1 + (BOSS_ROOM_SIZE - 1) * 2
@@ -183,7 +201,7 @@ class MazeData
   end
 
   def fix_room_entrances!
-    (@boss_rooms + [@start_room]).each do |x, y|
+    (@boss_rooms + [@start_room, @exit_room]).each do |x, y|
       dir = [N, S, E, W].sample
       cx = x + BOSS_ROOM_SIZE / 2
       cy = y + BOSS_ROOM_SIZE / 2
@@ -238,8 +256,26 @@ class MazeData
       rooms << [x, y]
     end
 
-    @start_room = rooms.shift
+    # assign the start and exit room to be the two furthest apart rooms
-    @boss_rooms = rooms
+    @start_room, @exit_room = furthest_pair(rooms)
+    @boss_rooms = rooms - [@start_room, @exit_room]
+  end
+
+  def furthest_pair(rects)
+    max_dist = -Float::INFINITY
+    pair = nil
+
+    rects.combination(2) do |r1, r2|
+      x1, y1 = r1
+      x2, y2 = r2
+      dist = Math.hypot(x2 - x1, y2 - y1)
+      if dist > max_dist
+        max_dist = dist
+        pair = [r1, r2]
+      end
+    end
+
+    pair
   end
 
   def carve_passages_from(cx, cy)

window.rb

@@ -1,11 +1,13 @@
 require 'opengl'
 require 'glu'
 require 'gosu'
+require 'json'
 
 require_relative 'settings/configuration'
 require_relative 'utils/utils'
 require_relative 'utils/scene'
 require_relative 'settings/scene'
+require_relative 'credits/scene'
 require_relative 'menu/scene'
 require_relative 'game_over/scene'
 require_relative 'game/scene'
@@ -68,13 +70,11 @@ class Window < Gosu::Window
 
     cam_x, cam_y = $bus.get(:camera_pos) || [0, 0]
     torch_lights = []
-    # Only calculate torch lights if the setting is enabled, to save performance
+
-    if $bus.get(:settings, :torches_lightup)
     torches = $bus.get(:nearby_torches,
     [cam_x - SCREEN_SIZE[0], cam_y - SCREEN_SIZE[1], SCREEN_SIZE[0] * 4, SCREEN_SIZE[1] * 4]
     ) || []
     torch_lights = torches.map { |t| [t[0] - cam_x, SCREEN_SIZE[1] - (t[1] - cam_y)] }.flatten
-    end
 
     lorentz_field = $bus.get(:lorentz_field) || 0.0