diff --git a/app/sound_instance.rb b/app/classes/sound_instance.rb
similarity index 100%
rename from app/sound_instance.rb
rename to app/classes/sound_instance.rb
diff --git a/app/sprite_instance.rb b/app/classes/sprite_instance.rb
similarity index 100%
rename from app/sprite_instance.rb
rename to app/classes/sprite_instance.rb
diff --git a/app/input.rb b/app/input.rb
deleted file mode 100644
index c4135a9..0000000
--- a/app/input.rb
+++ /dev/null
@@ -1,110 +0,0 @@
-# efficient input helpers that all take `args.inputs`
-
-PRIMARY_KEYS = [:j, :z, :space]
-def primary_down?(inputs)
-  PRIMARY_KEYS.any? { |k| inputs.keyboard.key_down.send(k) } ||
-    inputs.controller_one.key_down&.a
-end
-def primary_down_or_held?(inputs)
-  primary_down?(inputs) ||
-    PRIMARY_KEYS.any? { |k| inputs.keyboard.key_held.send(k) } ||
-    (inputs.controller_one.connected &&
-     inputs.controller_one.key_held.a)
-end
-
-SECONDARY_KEYS = [:k, :x, :backspace]
-def secondary_down?(inputs)
-  SECONDARY_KEYS.any? { |k| inputs.keyboard.key_down.send(k) } ||
-    (inputs.controller_one.connected &&
-      inputs.controller_one.key_down.b)
-end
-def secondary_down_or_held?(inputs)
-  secondary_down?(inputs) ||
-    SECONDARY_KEYS.any? { |k| inputs.keyboard.key_held.send(k) } ||
-    (inputs.controller_one.connected &&
-     inputs.controller_one.key_held.b)
-end
-
-PAUSE_KEYS= [:escape, :p]
-def pause_down?(inputs)
-  PAUSE_KEYS.any? { |k| inputs.keyboard.key_down.send(k) } ||
-    inputs.controller_one.key_down&.start
-end
-
-# check for arrow keys, WASD, gamepad, and swipe up
-def up?(args)
-  args.inputs.up || args.state.swipe.up
-end
-
-# check for arrow keys, WASD, gamepad, and swipe down
-def down?(args)
-  args.inputs.down || args.state.swipe.down
-end
-
-# check for arrow keys, WASD, gamepad, and swipe left
-def left?(args)
-  args.inputs.left || args.state.swipe.left
-end
-
-# check for arrow keys, WASD, gamepad, and swipe right
-def right?(args)
-  args.inputs.right || args.state.swipe.right
-end
-
-# called by the main #tick method to keep track of swipes, you likely don't
-# need to call this yourself
-#
-# to check for swipes outside of the directional methods above, use it like
-# this:
-#
-# if args.state.swipe.up
-#   # do the thing
-# end
-#
-def track_swipe(args)
-  return unless mobile?
-
-  reset_swipe(args) if args.state.swipe.nil? || args.state.swipe.stop_tick
-  swipe = args.state.swipe
-
-  if args.inputs.mouse.down
-    swipe.merge!({
-      start_tick: args.state.tick_count,
-      start_x: args.inputs.mouse.x,
-      start_y: args.inputs.mouse.y,
-    })
-  end
-
-  if swipe.start_tick && swipe.start_x && swipe.start_y
-    p1 = [swipe.start_x, swipe.start_y]
-    p2 = [args.inputs.mouse.x, args.inputs.mouse.y]
-    dist = args.geometry.distance(p1, p2)
-
-    if dist > 50 # min distance threshold
-      swipe.merge!({
-        stop_x: p2[0],
-        stop_y: p2[1],
-      })
-
-      angle = args.geometry.angle_from(p1, p2)
-      swipe.angle = angle
-      swipe.dist = dist
-      swipe.stop_tick = args.state.tick_count
-
-      if angle > 315 || swipe.angle < 45
-        swipe.left = true
-      elsif angle >= 45 && angle <= 135
-        swipe.down = true
-      elsif angle > 135 && angle < 225
-        swipe.right = true
-      elsif angle >= 225 && angle <= 315
-        swipe.up = true
-      end
-    end
-  end
-end
-
-# reset the currently tracked swipe
-def reset_swipe(args)
-  args.state.swipe = { up: false, down: false, right: false, left: false }
-end
diff --git a/app/keybindings.rb b/app/keybindings.rb
new file mode 100644
index 0000000..36ff611
--- /dev/null
+++ b/app/keybindings.rb
@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+# Set the default input / key bindings here
+module Input
+  class << self
+    PRIMARY_KEYS = [:j, :z, :space]
+    SECONDARY_KEYS = [:k, :x, :backspace]
+    PAUSE_KEYS = [:escape, :p]
+    BINDINGS = {
+      primary:      {
+        keyboard:       %i[j z space],
+        controller_one: %i[a]
+      },
+      secondary:    {
+        keyboard:       %i[k x backspace],
+        controller_one: %i[b]
+      },
+      pause:        {
+        keyboard:       %i[escape p],
+        controller_one: %i[start]
+      },
+      rotate_left:  {
+        keyboard:       %i[q j z space],
+        controller_one: %i[a l1]
+      },
+      rotate_right: {
+        keyboard:       %i[e x backspace],
+        controller_one: %i[b l2]
+      },
+      up:           {
+        keyboard:       %i[w up],
+        controller_one: %i[up]
+      },
+      down:         {
+        keyboard:       %i[s down],
+        controller_one: %i[down]
+      },
+      left:         {
+        keyboard:       %i[a left],
+        controller_one: %i[left]
+      },
+      right:        {
+        keyboard:       %i[d right],
+        controller_one: %i[right]
+      }
+    }
+  end
+end
diff --git a/app/main.rb b/app/main.rb
index 1d2110d..5e2cff8 100644
--- a/app/main.rb
+++ b/app/main.rb
@@ -4,20 +4,23 @@
 require 'lib/coalesce.rb'
 
 # then, some basic classes required for lists of assets
-require 'app/sprite_instance.rb'
-require 'app/sound_instance.rb'
+require 'app/classes/sprite_instance.rb'
+require 'app/classes/sound_instance.rb'
 
 # then, asset lists
 require 'sprites/_list.rb'
 require 'sounds/_list.rb'
 require 'music/_list.rb'
 
+# then, default keybindings
+require 'app/keybindings.rb'
+
 # then, utility classes
-require 'app/input.rb'
-require 'app/sprite.rb'
-require 'app/util.rb'
-require 'app/sound.rb'
-require 'app/music.rb'
+require 'app/util/sprite.rb'
+require 'app/util/sound.rb'
+require 'app/util/music.rb'
+require 'app/util/util.rb'
+require 'app/util/input.rb'
 
 require 'app/constants.rb'
 require 'app/menu.rb'
diff --git a/app/menu.rb b/app/menu.rb
index 144cfdf..1a60961 100644
--- a/app/menu.rb
+++ b/app/menu.rb
@@ -93,7 +93,7 @@ module Menu
         end
       end
 
-      if primary_down?(args.inputs)
+      if Input.pressed?(args, :primary)
         Sound.play(args, :select)
         options[menu_state.current_option_i][:on_select].call(args)
       end
diff --git a/app/scenes/gameplay.rb b/app/scenes/gameplay.rb
index 626050a..49b408b 100644
--- a/app/scenes/gameplay.rb
+++ b/app/scenes/gameplay.rb
@@ -13,7 +13,7 @@ module Scene
       end
 
       # auto-pause & input-based pause
-      if !args.state.has_focus || pause_down?(args)
+      if !args.state.has_focus || Input.pressed?(args, :pause)
         return pause(args)
       end
 
diff --git a/app/scenes/paused.rb b/app/scenes/paused.rb
index a61d646..3eedb62 100644
--- a/app/scenes/paused.rb
+++ b/app/scenes/paused.rb
@@ -30,7 +30,7 @@ module Scene
 
       Music.pause(args) unless Music.stopped(args)
 
-      if secondary_down?(args.inputs)
+      if Input.pressed?(args, :secondary)
         Sound.play(args, :select)
         options.find { |o| o[:key] == :resume }[:on_select].call(args)
         
diff --git a/app/scenes/settings.rb b/app/scenes/settings.rb
index 6351ad3..a84d9d4 100644
--- a/app/scenes/settings.rb
+++ b/app/scenes/settings.rb
@@ -49,7 +49,7 @@ module Scene
 
       Menu.tick(args, :settings, options)
 
-      if secondary_down?(args.inputs)
+      if Input.pressed?(args, :secondary)
         Sound.play(args, :select)
         options.find { |o| o[:key] == :back }[:on_select].call(args)
       end
diff --git a/app/tick.rb b/app/tick.rb
index ac7f880..44a112f 100644
--- a/app/tick.rb
+++ b/app/tick.rb
@@ -1,6 +1,6 @@
 # Code that only gets run once on game start
 def init(args)
-  reset_swipe(args)
+  Input.reset_swipe(args)
   GameSetting.load_settings(args)
 end
 
@@ -13,7 +13,7 @@ def tick(args)
   args.state.has_focus ||= true
   Scene.push(args, :main_menu, reset: true) if !args.state.scene
 
-  track_swipe(args) if mobile?
+  Input.track_swipe(args) if mobile?
 
   Scene.send("tick_#{args.state.scene}", args)
   
diff --git a/app/util/input.rb b/app/util/input.rb
new file mode 100644
index 0000000..23be744
--- /dev/null
+++ b/app/util/input.rb
@@ -0,0 +1,109 @@
+# frozen_string_literal: true
+
+# Module for managing inputs.
+module Input
+  class << self
+
+    def input_interaction?(args, input, interaction)
+      BINDINGS[input].any? do |source, bindings|
+        bindings.any? do |k|
+          args.inputs.send(source).send(interaction).send(k)
+        end
+      end
+    end
+
+    def pressed?(args, input)
+      input_interaction?(args, input, :key_down)
+    end
+
+    def held?(args, input)
+      input_interaction?(args, input, :key_held)
+    end
+
+    def released?(args, input)
+      input_interaction?(args, input, :key_up)
+    end
+
+    def pressed_or_held?(args, input)
+      pressed?(args, input) || held?(args, input)
+    end
+
+    # check for arrow keys, WASD, gamepad, and swipe up
+    def up?(args)
+      args.inputs.up || args.state.swipe.up
+    end
+
+    # check for arrow keys, WASD, gamepad, and swipe down
+    def down?(args)
+      args.inputs.down || args.state.swipe.down
+    end
+
+    # check for arrow keys, WASD, gamepad, and swipe left
+    def left?(args)
+      args.inputs.left || args.state.swipe.left
+    end
+
+    # check for arrow keys, WASD, gamepad, and swipe right
+    def right?(args)
+      args.inputs.right || args.state.swipe.right
+    end
+
+    # called by the main #tick method to keep track of swipes, you likely don't
+    # need to call this yourself
+    #
+    # to check for swipes outside of the directional methods above, use it like
+    # this:
+    #
+    # if args.state.swipe.up
+    #   # do the thing
+    # end
+    #
+    def track_swipe(args)
+      return unless mobile?
+
+      reset_swipe(args) if args.state.swipe.nil? || args.state.swipe.stop_tick
+      swipe = args.state.swipe
+
+      if args.inputs.mouse.down
+        swipe.merge!({
+          start_tick: args.state.tick_count,
+          start_x: args.inputs.mouse.x,
+          start_y: args.inputs.mouse.y,
+        })
+      end
+
+      if swipe.start_tick && swipe.start_x && swipe.start_y
+        p1 = [swipe.start_x, swipe.start_y]
+        p2 = [args.inputs.mouse.x, args.inputs.mouse.y]
+        dist = args.geometry.distance(p1, p2)
+
+        if dist > 50 # min distance threshold
+          swipe.merge!({
+            stop_x: p2[0],
+            stop_y: p2[1],
+          })
+
+          angle = args.geometry.angle_from(p1, p2)
+          swipe.angle = angle
+          swipe.dist = dist
+          swipe.stop_tick = args.state.tick_count
+
+          if angle > 315 || swipe.angle < 45
+            swipe.left = true
+          elsif angle >= 45 && angle <= 135
+            swipe.down = true
+          elsif angle > 135 && angle < 225
+            swipe.right = true
+          elsif angle >= 225 && angle <= 315
+            swipe.up = true
+          end
+        end
+      end
+    end
+
+    # reset the currently tracked swipe
+    def reset_swipe(args)
+      args.state.swipe = { up: false, down: false, right: false, left: false }
+    end
+  end
+end
diff --git a/app/music.rb b/app/util/music.rb
similarity index 100%
rename from app/music.rb
rename to app/util/music.rb
diff --git a/app/sound.rb b/app/util/sound.rb
similarity index 100%
rename from app/sound.rb
rename to app/util/sound.rb
diff --git a/app/sprite.rb b/app/util/sprite.rb
similarity index 100%
rename from app/sprite.rb
rename to app/util/sprite.rb
diff --git a/app/util.rb b/app/util/util.rb
similarity index 100%
rename from app/util.rb
rename to app/util/util.rb