Synced with 2.3.

75 files changed, 724 insertions, 0 deletions

diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/app/main.rb b/samples/99_genre_rpg_tactical/gameboard_movement/app/main.rb
new file mode 100644
index 0000000..8eb935e
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/app/main.rb
@@ -0,0 +1,529 @@
+# Size of board is always 1280x720
+
+def tick args
+  size = 64
+
+  # Draw a checkerboard as a placeholder game board
+  i = 0
+  j = 0
+  while i < 12 do
+    while j < 21 do
+      args.outputs.solids << [(j*size), (i*size), size, size, 255, 100, 0, ((i+j) % 2 == 0) ? 255 : 0]
+      j += 1
+    end
+    j = 0
+    i += 1
+  end
+  k = 0
+  ary = Array.new(220)
+  while k < 220
+    ary[k] = 1
+    if k > 20 and k < 36
+      ary[k] = 0
+    end
+    if k > 40 and k < 56
+      ary[k] = 0
+    end
+    if k > 60 and k < 76
+      ary[k] = 0
+    end
+    if k > 80 and k < 96
+      ary[k] = 0
+    end
+    if k > 100 and k < 116
+      ary[k] = 0
+    end
+    if k > 120 and k < 136
+      ary[k] = 0
+    end
+    if k == 161 and args.state.bot3.hp >= 1
+      ary[k] = 0
+    end
+    if k == 147 and args.state.bot1.hp >= 1
+      ary[k] = 0
+    end
+    if k == 215 and args.state.bot2.hp >= 1
+      ary[k] = 0
+    end
+    k += 1
+  end
+  ary2 = ary;
+  htarget = 161
+  target = 160
+  targetb = 181
+  targetc = 141
+  targetd = 162
+  target2 = 146
+  target2b = 167
+  target2c = 148
+  htarget2 = 147
+  target3 = 214
+  target3c = 216
+  target3b = 195
+  htarget3 = 215
+  # player attributes
+  args.state.player.x ||= 0
+  args.state.player.y ||= 0
+  args.state.player.w ||= 64
+  args.state.player.h ||= 64
+  args.state.player.direction ||= 1
+  args.state.player.hp ||= 100
+  args.state.player.strength ||= 100
+  args.state.player.pos ||= 0
+
+  # bot1 attributes
+  args.state.bot1.x ||= 448
+  args.state.bot1.y ||= 448
+  args.state.bot1.w ||= 64
+  args.state.bot1.h ||= 64
+  args.state.bot1.direction ||= 1
+  args.state.bot1.hp ||= 100
+  args.state.bot1.strength ||= 5
+
+  # bot2 attributes
+  args.state.bot2.x ||= 960
+  args.state.bot2.y ||= 640
+  args.state.bot2.w ||= 64
+  args.state.bot2.h ||= 64
+  args.state.bot2.direction ||= 1
+  args.state.bot2.hp ||= 100
+  args.state.bot2.strength ||= 8
+
+  # bot3 attributes
+  args.state.bot3.x ||= 64
+  args.state.bot3.y ||= 512
+  args.state.bot3.w ||= 64
+  args.state.bot3.h ||= 64
+  args.state.bot3.direction ||= 1
+  args.state.bot3.hp ||= 100
+  args.state.bot3.strength ||= 8
+
+  # obstacle attributes
+  args.state.obs1.x ||= 64
+  args.state.obs1.y ||= 64
+  args.state.obs1.w ||= 960
+  args.state.obs1.h ||= 384
+  args.state.obs1.direction ||= 1
+
+
+  @menu_shown ||= :hidden
+
+  # display menu
+  if @menu_shown == :hidden
+    args.state.menu_button ||= new_button :menu, 1081, 650, "Menu"
+    args.outputs.primitives << args.state.menu_button[:primitives]
+
+    if button_clicked? args, args.state.menu_button
+      @menu_shown = :visible
+    end
+
+  else
+    args.state.menu_overlay = [1080, 0, 200, 720, 100, 0,   0, 250]
+
+    # first overlay
+    if args.state.menu_overlay
+      args.outputs.solids << args.state.menu_overlay
+
+      # move button
+      args.state.move_button ||= new_button :move, 1081, 650, "Move"
+      args.outputs.primitives << args.state.move_button[:primitives]
+
+      if button_clicked? args, args.state.move_button
+        args.gtk.notify! "Move button was clicked!"
+      end
+
+      # attack button
+      args.state.attack_button ||= new_button :attack, 1081, 600, "Attack"
+      args.outputs.primitives << args.state.attack_button[:primitives]
+
+      if button_clicked? args, args.state.attack_button
+
+        if args.state.player.pos+1 == htarget or args.state.player.pos-1 == htarget or args.state.player.pos+20 == htarget or args.state.player.pos-20 == htarget
+          damage = rand(100)
+          dealt = "#{damage} Damage Dealt!"
+          args.gtk.notify! dealt
+          args.state.bot3.hp -= damage
+
+        end
+        if args.state.player.pos+1 == htarget2 or args.state.player.pos-1 == htarget2 or args.state.player.pos+20 == htarget2 or args.state.player.pos-20 == htarget2
+          damage = rand(100)
+          dealt = "#{damage} Damage Dealt!"
+          args.gtk.notify! dealt
+
+          args.state.bot1.hp -= damage
+
+        end
+        if args.state.player.pos+1 == htarget3 or args.state.player.pos-1 == htarget3 or args.state.player.pos+20 == htarget3 or args.state.player.pos-20 == htarget3
+          damage = rand(100)
+          dealt = "#{damage} Damage Dealt!"
+          args.gtk.notify! dealt
+          args.state.bot2.hp -= damage
+
+        end
+      end
+
+      # items button
+      args.state.items_button ||= new_button :items, 1081, 550, "Items"
+      args.outputs.primitives << args.state.items_button[:primitives]
+
+      if button_clicked? args, args.state.items_button
+        args.state.itemMenu_overlay = [880, 0, 200, 720, 150, 0,   0, 250]
+        args.gtk.notify! "Items button was clicked!"
+      end
+
+      # second overlay
+      if args.state.itemMenu_overlay
+        args.outputs.solids << args.state.itemMenu_overlay
+        args.outputs.labels << [960, 700, "Items"]
+
+        # create items
+        args.state.potion_button ||= new_button :potion, 881, 600, "Potion"
+        args.outputs.primitives << args.state.potion_button[:primitives]
+
+        if button_clicked? args, args.state.potion_button
+          args.gtk.notify! "Potion Used!"
+        end
+
+        args.state.elixer_button ||= new_button :potion, 881, 550, "Elixer"
+        args.outputs.primitives << args.state.elixer_button[:primitives]
+
+        if button_clicked? args, args.state.elixer_button
+          args.gtk.notify! "Elixer Used!"
+        end
+
+      end
+
+      # wait button
+      args.state.wait_button ||= new_button :wait, 1081, 500, "Wait"
+      args.outputs.primitives << args.state.wait_button[:primitives]
+
+      if button_clicked? args, args.state.wait_button
+        args.gtk.notify! "Wait button was clicked!"
+      end
+
+      # close button
+      args.state.close_button ||= new_button :close, 1081, 450, "Close"
+      args.outputs.primitives << args.state.close_button[:primitives]
+
+      # hide menu
+      if button_clicked? args, args.state.close_button
+        @menu_shown = :hidden
+      end
+
+    end
+  end
+
+  # left and right movement
+  if args.inputs.keyboard.key_down.right and ary[args.state.player.pos+1] == 1 and args.state.player.pos%20 < 19
+    args.state.player.direction = 1
+    args.state.player.started_running_at = args.state.tick_count
+    args.state.player.x += size
+    args.state.player.pos += 1
+  elsif args.inputs.keyboard.key_down.left and ary[args.state.player.pos-1] == 1 and args.state.player.pos%20 > 0
+    args.state.player.direction = -1
+    args.state.player.started_running_at = args.state.tick_count
+    args.state.player.x -= size
+    args.state.player.pos -= 1
+  end
+
+
+
+
+  # up and down movement
+  if args.inputs.keyboard.key_down.up and ary[args.state.player.pos+20] == 1 and args.state.player.pos < 200
+    args.state.player.direction = 1
+    args.state.player.started_running_at = args.state.tick_count
+    args.state.player.y += size
+    args.state.player.pos += 20
+  elsif args.inputs.keyboard.key_down.down and ary[args.state.player.pos-20] == 1 and args.state.player.pos >= 20
+    args.state.player.direction = -1
+    args.state.player.started_running_at = args.state.tick_count
+    args.state.player.y -= size
+    args.state.player.pos -= 20
+  end
+
+  pigga = args.state.player.intersect_rect? args.state.obs1
+  if pigga
+    args.gtk.notify! "sprites collide!"
+    args.state.player.y -= size
+  end
+  looping = true
+  cangoup = false
+  cangoright = false
+  cangodown = false
+  cangoleft = false
+  ftarget = 10000
+  hold = 9
+  testtarget = args.state.player.pos
+  if args.state.bot3.hp > 0
+    ftarget = (target-testtarget).abs
+    hold = target
+  end
+  if(ftarget > (targetb-testtarget).abs and args.state.bot3.hp > 0)
+    ftarget = (targetb-testtarget).abs
+    hold = targetb
+  end
+  if(ftarget > (targetc-testtarget).abs and args.state.bot3.hp > 0)
+    ftarget = (targetc-testtarget).abs
+    hold = targetc
+  end
+  if(ftarget > (targetd-testtarget).abs and args.state.bot3.hp > 0)
+    ftarget = (targetd-testtarget).abs
+    hold = targetd
+  end
+  if(ftarget > (target2-testtarget).abs and args.state.bot1.hp > 0)
+    ftarget = (target2-testtarget).abs
+    hold = target2
+  end
+  if(ftarget > (target2b-testtarget).abs and args.state.bot1.hp > 0)
+    ftarget = (target2b-testtarget).abs
+    hold = target2b
+  end
+  if(ftarget > (target2c-testtarget).abs and args.state.bot1.hp > 0)
+    ftarget = (target2c-testtarget).abs
+    hold = target2c
+  end
+  if(ftarget > (target3-testtarget).abs and args.state.bot2.hp > 0)
+    ftarget = (target3-testtarget).abs
+    hold = target3
+  end
+  if(ftarget > (target3b-testtarget).abs and args.state.bot2.hp > 0)
+    ftarget = (target3b-testtarget).abs
+    hold = target3b
+  end
+  if(ftarget > (target3c-testtarget).abs and args.state.bot2.hp > 0)
+    ftarget = (target3c-testtarget).abs
+    hold = target3c
+  end
+  if ftarget == 10000
+    looping = false
+  end
+  if args.inputs.keyboard.key_down.f
+    while looping and target != testtarget and targetb != testtarget and targetc != testtarget and targetd != testtarget and target2 != testtarget and target2b != testtarget and target2c != testtarget and target3 != testtarget and target3b != testtarget and target3c != testtarget
+      cangoup = false
+      cangoright = false
+      cangodown = false
+      cangoleft = false
+
+      if hold-testtarget >= 20 and ary2[args.state.player.pos+20] == 1 and args.state.player.pos < 200
+        cangoup = true
+      elsif testtarget-hold >= 20 and ary2[args.state.player.pos-20] == 1 and args.state.player.pos > 20
+        cangodown = true
+        cangoup = false
+      elsif hold%20-testtarget%20 > 0 and ary2[args.state.player.pos+1] == 1 and args.state.player.pos%20 < 19
+        cangodown = false
+        cangoup = false
+        cangoright = true
+      elsif testtarget%20-hold%20 > 0 and ary2[args.state.player.pos-1] == 1 and args.state.player.pos%20 > 0
+        cangodown = false
+        cangoup = false
+        cangoright = false
+        cangoleft = true
+      end
+      if cangodown == false and cangoup == false and cangoleft == false and cangoright == false
+        if ary2[args.state.player.pos+20] == 1  and args.state.player.pos < 200
+          cangoup = true
+        elsif ary2[args.state.player.pos-20] == 1 and args.state.player.pos > 20
+          cangodown = true
+          cangoup = false
+        elsif ary2[args.state.player.pos+1] == 1 and args.state.player.pos%20 < 19
+          cangodown = false
+          cangoup = false
+          cangoright = true
+        elsif ary2[args.state.player.pos-1] == 1 and args.state.player.pos%20 > 0
+          cangodown = false
+          cangoup = false
+          cangoright = false
+          cangoleft = true
+        end
+      end
+      if cangodown == true
+        args.state.player.direction = -1
+        args.state.player.started_running_at = args.state.tick_count
+        args.state.player.y -= size
+        ary2[args.state.player.pos] = 0
+        args.state.player.pos -= 20
+        testtarget -= 20
+
+      elsif cangoup == true
+        args.state.player.direction = 1
+        args.state.player.started_running_at = args.state.tick_count
+        args.state.player.y += size
+        ary2[args.state.player.pos] = 0
+        args.state.player.pos += 20
+        testtarget+=20
+
+      elsif cangoright == true
+        args.state.player.direction = 1
+        args.state.player.started_running_at = args.state.tick_count
+        args.state.player.x += size
+        ary2[args.state.player.pos] = 0
+        args.state.player.pos += 1
+        testtarget += 1
+
+      elsif cangoleft == true
+        args.state.player.direction = -1
+        args.state.player.started_running_at = args.state.tick_count
+        args.state.player.x -= size
+        ary2[args.state.player.pos] = 0
+        args.state.player.pos -= 1
+        testtarget -= 1
+      end
+
+    end
+  end
+
+
+  #Wrap player around the stage
+  if args.state.player.x > 1280
+    args.state.player.x = -64
+    args.state.player.started_running_at ||= args.state.tick_count
+  elsif args.state.player.x < -64
+    args.state.player.x = 1280
+    args.state.player.started_running_at ||= args.state.tick_count
+  end
+
+  if args.state.player.y > 720
+    args.state.player.y = -64
+    args.state.player.started_running_at ||= args.state.tick_count
+  elsif args.state.player.y < -64
+    args.state.player.y = 720
+    args.state.player.started_running_at ||= args.state.tick_count
+  end
+
+  # Display obstacles
+  args.outputs.sprites << display_obs1(args)
+
+  #Display the flying dragon and bots
+  args.outputs.sprites << display_dragon(args)
+  if args.state.bot1.hp >= 1
+    args.outputs.sprites << display_bot1(args)
+  end
+  if args.state.bot2.hp >= 1
+    args.outputs.sprites << display_bot2(args)
+  end
+  if args.state.bot3.hp >= 1
+    args.outputs.sprites << display_bot3(args)
+  end
+  if args.state.bot1.hp <= 0 and args.state.bot3.hp <= 0 and args.state.bot2.hp <= 0
+    args.gtk.notify! "You Win!"
+  end
+end
+
+# helper method to create a button
+def new_button id, x, y, text
+  # create a hash ("entity") that has some metadata
+  # about what it represents
+  entity =
+    {
+      id: id,
+      rect: { x: x, y: y, w: 200, h: 50 }
+    }
+
+  # for that entity, define the primitives
+  # that form it
+  entity[:primitives] =
+    [
+      { x: x, y: y, w: 200, h: 50 }.border,
+      { x: x + 75, y: y + 30, text: text }.label
+    ]
+
+  entity
+end
+
+# helper method for determining if a button was clicked
+def button_clicked? args, button
+  return false unless args.inputs.mouse.click
+  return args.inputs.mouse.point.inside_rect? button[:rect]
+end
+
+def display_dragon args
+  start_looping_at = 0
+  number_of_sprites = 2
+  number_of_frames_to_show_each_sprite = 8
+  does_sprite_loop = true
+  sprite_index = start_looping_at.frame_index number_of_sprites,
+                                              number_of_frames_to_show_each_sprite,
+                                              does_sprite_loop
+  {
+    pos: args.state.player.pos,
+    x: args.state.player.x,
+    y: args.state.player.y,
+    w: args.state.player.w,
+    h: args.state.player.h,
+    path: "sprites/roy-#{sprite_index}.png",
+    flip_horizontally: args.state.player.direction < 0
+  }
+end
+
+def display_bot1 args
+  start_looping_at = 0
+  number_of_sprites = 6
+  number_of_frames_to_show_each_sprite = 4
+  does_sprite_loop = true
+  sprite_index = start_looping_at.frame_index number_of_sprites,
+                                              number_of_frames_to_show_each_sprite,
+                                              does_sprite_loop
+  {
+    x: args.state.bot1.x,
+    y: args.state.bot1.y,
+    w: args.state.bot1.w,
+    h: args.state.bot1.h,
+    path: "sprites/dragon-#{sprite_index}.png",
+    flip_horizontally: args.state.bot1.direction < 0
+  }
+end
+
+def display_bot2 args
+  start_looping_at = 0
+  number_of_sprites = 6
+  number_of_frames_to_show_each_sprite = 4
+  does_sprite_loop = true
+  sprite_index = start_looping_at.frame_index number_of_sprites,
+                                              number_of_frames_to_show_each_sprite,
+                                              does_sprite_loop
+  {
+    x: args.state.bot2.x,
+    y: args.state.bot2.y,
+    w: args.state.bot2.w,
+    h: args.state.bot2.h,
+    path: "sprites/dragon-#{sprite_index}.png",
+    flip_horizontally: args.state.bot2.direction < 0
+  }
+end
+
+def display_bot3 args
+  start_looping_at = 0
+  number_of_sprites = 6
+  number_of_frames_to_show_each_sprite = 4
+  does_sprite_loop = true
+  sprite_index = start_looping_at.frame_index number_of_sprites,
+                                              number_of_frames_to_show_each_sprite,
+                                              does_sprite_loop
+  {
+    x: args.state.bot3.x,
+    y: args.state.bot3.y,
+    w: args.state.bot3.w,
+    h: args.state.bot3.h,
+    path: "sprites/dragon-#{sprite_index}.png",
+    flip_horizontally: args.state.bot3.direction < 0
+  }
+end
+
+def display_obs1 args
+  start_looping_at = 0
+  number_of_sprites = 1
+  number_of_frames_to_show_each_sprite = 8
+  does_sprite_loop = true
+  sprite_index = start_looping_at.frame_index number_of_sprites,
+                                              number_of_frames_to_show_each_sprite,
+                                              does_sprite_loop
+  {
+    x: args.state.obs1.x,
+    y: args.state.obs1.y,
+    w: args.state.obs1.w,
+    h: args.state.obs1.h,
+    path: "sprites/water-1.png",
+    flip_horizontally: args.state.obs1.direction < 0
+  }
+end
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/border-black.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/border-black.png
new file mode 100644
index 0000000..c9d0bad
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/border-black.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-black.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-black.png
new file mode 100644
index 0000000..c98e23d
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-black.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-blue.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-blue.png
new file mode 100644
index 0000000..1726d2a
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-blue.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-gray.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-gray.png
new file mode 100644
index 0000000..960f191
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-gray.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-green.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-green.png
new file mode 100644
index 0000000..43cf7ee
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-green.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-indigo.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-indigo.png
new file mode 100644
index 0000000..598e240
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-indigo.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-orange.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-orange.png
new file mode 100644
index 0000000..5604a42
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-orange.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-red.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-red.png
new file mode 100644
index 0000000..7f17ca6
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-red.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-violet.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-violet.png
new file mode 100644
index 0000000..681d210
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-violet.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-white.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-white.png
new file mode 100644
index 0000000..bd32155
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-white.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-yellow.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-yellow.png
new file mode 100644
index 0000000..94992eb
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/circle-yellow.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-0.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-0.png
new file mode 100644
index 0000000..fb179af
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-0.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-1.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-1.png
new file mode 100644
index 0000000..8cfe531
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-1.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-2.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-2.png
new file mode 100644
index 0000000..cb462e1
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-2.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-3.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-3.png
new file mode 100644
index 0000000..04c4977
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-3.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-4.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-4.png
new file mode 100644
index 0000000..b29fa3d
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-4.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-5.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-5.png
new file mode 100644
index 0000000..99f4e74
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/dragon-5.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-0.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-0.png
new file mode 100644
index 0000000..f48636f
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-0.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-1.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-1.png
new file mode 100644
index 0000000..b4018d9
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-1.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-2.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-2.png
new file mode 100644
index 0000000..3abaedd
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-2.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-3.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-3.png
new file mode 100644
index 0000000..fe94a5a
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-3.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-4.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-4.png
new file mode 100644
index 0000000..ed04237
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-4.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-5.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-5.png
new file mode 100644
index 0000000..2cd8f06
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-5.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-6.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-6.png
new file mode 100644
index 0000000..e55909c
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-6.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-sheet.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-sheet.png
new file mode 100644
index 0000000..8559a5c
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/explosion-sheet.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-black.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-black.png
new file mode 100644
index 0000000..f50c872
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-black.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-blue.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-blue.png
new file mode 100644
index 0000000..1696bae
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-blue.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-gray.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-gray.png
new file mode 100644
index 0000000..e8c4c5a
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-gray.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-green.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-green.png
new file mode 100644
index 0000000..a700602
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-green.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-indigo.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-indigo.png
new file mode 100644
index 0000000..15f6f4f
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-indigo.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-orange.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-orange.png
new file mode 100644
index 0000000..1587173
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-orange.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-red.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-red.png
new file mode 100644
index 0000000..d442f39
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-red.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-violet.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-violet.png
new file mode 100644
index 0000000..3be5731
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-violet.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-white.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-white.png
new file mode 100644
index 0000000..c1ad970
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-white.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-yellow.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-yellow.png
new file mode 100644
index 0000000..63f5f34
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/hexagon-yellow.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-black.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-black.png
new file mode 100644
index 0000000..fa9e463
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-black.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-blue.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-blue.png
new file mode 100644
index 0000000..a3d8524
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-blue.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-gray.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-gray.png
new file mode 100644
index 0000000..85dcc1d
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-gray.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-green.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-green.png
new file mode 100644
index 0000000..ec2773e
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-green.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-indigo.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-indigo.png
new file mode 100644
index 0000000..e6be50c
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-indigo.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-orange.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-orange.png
new file mode 100644
index 0000000..154d81c
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-orange.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-red.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-red.png
new file mode 100644
index 0000000..3448c4d
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-red.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-violet.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-violet.png
new file mode 100644
index 0000000..f09bf21
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-violet.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-white.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-white.png
new file mode 100644
index 0000000..a45793d
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-white.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-yellow.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-yellow.png
new file mode 100644
index 0000000..9be20c7
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/isometric-yellow.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/roy-0.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/roy-0.png
new file mode 100644
index 0000000..dd122e1
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/roy-0.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/roy-1.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/roy-1.png
new file mode 100644
index 0000000..d3ac548
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/roy-1.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-black.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-black.png
new file mode 100644
index 0000000..cea7bd7
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-black.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-blue.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-blue.png
new file mode 100644
index 0000000..b840849
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-blue.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-gray.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-gray.png
new file mode 100644
index 0000000..2142b30
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-gray.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-green.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-green.png
new file mode 100644
index 0000000..5ef7f75
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-green.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-indigo.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-indigo.png
new file mode 100644
index 0000000..2384108
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-indigo.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-orange.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-orange.png
new file mode 100644
index 0000000..bb1eee7
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-orange.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-red.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-red.png
new file mode 100644
index 0000000..3ed5f13
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-red.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-violet.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-violet.png
new file mode 100644
index 0000000..333540c
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-violet.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-white.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-white.png
new file mode 100644
index 0000000..378c565
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-white.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-yellow.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-yellow.png
new file mode 100644
index 0000000..0edeeec
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/square-yellow.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/star.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/star.png
new file mode 100644
index 0000000..e0ee0f9
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/star.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/water-1.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/water-1.png
new file mode 100644
index 0000000..527385a
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/water-1.png
diff --git a/samples/99_genre_rpg_tactical/gameboard_movement/sprites/water-2.png b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/water-2.png
new file mode 100644
index 0000000..7f73b1b
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/gameboard_movement/sprites/water-2.png
diff --git a/samples/99_genre_rpg_tactical/taking_turns/app/main.rb b/samples/99_genre_rpg_tactical/taking_turns/app/main.rb
new file mode 100644
index 0000000..aac6de7
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/taking_turns/app/main.rb
@@ -0,0 +1,189 @@
+def tick args
+  args.state.base_columns   ||= 10.times.map { |n| 50 * n + 1280 / 2 - 5 * 50 + 5 }
+  args.state.base_rows      ||= 5.times.map { |n| 50 * n + 720 - 5 * 50 }
+  args.state.offset_columns = 10.times.map { |n| (n - 4.5) * Math.sin(Kernel.tick_count.to_radians) * 12 }
+  args.state.offset_rows    = 5.map { 0 }
+  args.state.columns        = 10.times.map { |i| args.state.base_columns[i] + args.state.offset_columns[i] }
+  args.state.rows           = 5.times.map { |i| args.state.base_rows[i] + args.state.offset_rows[i] }
+  args.state.explosions     ||= []
+  args.state.enemies        ||= []
+  args.state.score          ||= 0
+  args.state.wave           ||= 0
+  if args.state.enemies.empty?
+    args.state.wave      += 1
+    args.state.wave_root = Math.sqrt(args.state.wave)
+    args.state.enemies   = make_enemies
+  end
+  args.state.player         ||= {x: 620, y: 80, w: 40, h: 40, path: 'sprites/circle-gray.png', angle: 90, cooldown: 0, alive: true}
+  args.state.enemy_bullets  ||= []
+  args.state.player_bullets ||= []
+  args.state.lives          ||= 3
+  args.state.missed_shots   ||= 0
+  args.state.fired_shots    ||= 0
+
+  update_explosions args
+  update_enemy_positions args
+
+  if args.inputs.left && args.state.player[:x] > (300 + 5)
+    args.state.player[:x] -= 5
+  end
+  if args.inputs.right && args.state.player[:x] < (1280 - args.state.player[:w] - 300 - 5)
+    args.state.player[:x] += 5
+  end
+
+  args.state.enemy_bullets.each do |bullet|
+    bullet[:x] += bullet[:dx]
+    bullet[:y] += bullet[:dy]
+  end
+  args.state.player_bullets.each do |bullet|
+    bullet[:x] += bullet[:dx]
+    bullet[:y] += bullet[:dy]
+  end
+
+  args.state.enemy_bullets  = args.state.enemy_bullets.find_all { |bullet| bullet[:y].between?(-16, 736) }
+  args.state.player_bullets = args.state.player_bullets.find_all do |bullet|
+    if bullet[:y].between?(-16, 736)
+      true
+    else
+      args.state.missed_shots += 1
+      false
+    end
+  end
+
+  args.state.enemies = args.state.enemies.reject do |enemy|
+    if args.state.player[:alive] && 1500 > (args.state.player[:x] - enemy[:x]) ** 2 + (args.state.player[:y] - enemy[:y]) ** 2
+      args.state.explosions << {x: enemy[:x] + 4, y: enemy[:y] + 4, w: 32, h: 32, path: 'sprites/explosion-0.png', age: 0}
+      args.state.explosions << {x: args.state.player[:x] + 4, y: args.state.player[:y] + 4, w: 32, h: 32, path: 'sprites/explosion-0.png', age: 0}
+      args.state.player[:alive] = false
+      true
+    else
+      false
+    end
+  end
+  args.state.enemy_bullets.each do |bullet|
+    if args.state.player[:alive] && 400 > (args.state.player[:x] - bullet[:x] + 12) ** 2 + (args.state.player[:y] - bullet[:y] + 12) ** 2
+      args.state.explosions << {x: args.state.player[:x] + 4, y: args.state.player[:y] + 4, w: 32, h: 32, path: 'sprites/explosion-0.png', age: 0}
+      args.state.player[:alive] = false
+      bullet[:despawn]          = true
+    end
+  end
+  args.state.enemies = args.state.enemies.reject do |enemy|
+    args.state.player_bullets.any? do |bullet|
+      if 400 > (enemy[:x] - bullet[:x] + 12) ** 2 + (enemy[:y] - bullet[:y] + 12) ** 2
+        args.state.explosions << {x: enemy[:x] + 4, y: enemy[:y] + 4, w: 32, h: 32, path: 'sprites/explosion-0.png', age: 0}
+        bullet[:despawn] = true
+        args.state.score += 1000 * args.state.wave
+        true
+      else
+        false
+      end
+    end
+  end
+
+  args.state.player_bullets = args.state.player_bullets.reject { |bullet| bullet[:despawn] }
+  args.state.enemy_bullets  = args.state.enemy_bullets.reject { |bullet| bullet[:despawn] }
+
+  args.state.player[:cooldown] -= 1
+  if args.inputs.keyboard.key_held.space && args.state.player[:cooldown] <= 0 && args.state.player[:alive]
+    args.state.player_bullets << {x: args.state.player[:x] + 12, y: args.state.player[:y] + 28, w: 16, h: 16, path: 'sprites/star.png', dx: 0, dy: 8}.sprite
+    args.state.fired_shots       += 1
+    args.state.player[:cooldown] = 10 + 20 / args.state.wave
+  end
+  args.state.enemies.each do |enemy|
+    if Math.rand < 0.0005 + 0.0005 * args.state.wave && args.state.player[:alive] && enemy[:move_state] == :normal
+      args.state.enemy_bullets << {x: enemy[:x] + 12, y: enemy[:y] - 8, w: 16, h: 16, path: 'sprites/star.png', dx: 0, dy: -3 - args.state.wave_root}.sprite
+    end
+  end
+
+  args.outputs.background_color = [0, 0, 0]
+  args.outputs.primitives << args.state.enemies.map do |enemy|
+    [enemy[:x], enemy[:y], 40, 40, enemy[:path], -90].sprite
+  end
+  args.outputs.primitives << args.state.player if args.state.player[:alive]
+  args.outputs.primitives << args.state.explosions
+  args.outputs.primitives << args.state.player_bullets
+  args.outputs.primitives << args.state.enemy_bullets
+  accuracy = args.state.fired_shots.zero? ? 1 : (args.state.fired_shots - args.state.missed_shots) / args.state.fired_shots
+  args.outputs.primitives << [
+    [0, 0, 300, 720, 96, 0, 0].solid,
+    [1280 - 300, 0, 300, 720, 96, 0, 0].solid,
+    [1280 - 290, 60, "Wave     #{args.state.wave}", 255, 255, 255].label,
+    [1280 - 290, 40, "Accuracy #{(accuracy * 100).floor}%", 255, 255, 255].label,
+    [1280 - 290, 20, "Score    #{(args.state.score * accuracy).floor}", 255, 255, 255].label,
+  ]
+  args.outputs.primitives << args.state.lives.times.map do |n|
+    [1280 - 290 + 50 * n, 80, 40, 40, 'sprites/circle-gray.png', 90].sprite
+  end
+  #args.outputs.debug << args.gtk.framerate_diagnostics_primitives
+
+  if (!args.state.player[:alive]) && args.state.enemy_bullets.empty? && args.state.explosions.empty? && args.state.enemies.all? { |enemy| enemy[:move_state] == :normal }
+    args.state.player[:alive] = true
+    args.state.player[:x]     = 624
+    args.state.player[:y]     = 80
+    args.state.lives          -= 1
+    if args.state.lives == -1
+      args.state.clear!
+    end
+  end
+end
+
+def make_enemies
+  enemies = []
+  enemies += 10.times.map { |n| {x: Math.rand * 1280 * 2 - 640, y: Math.rand * 720 * 2 + 720, row: 0, col: n, path: 'sprites/circle-orange.png', move_state: :retreat} }
+  enemies += 10.times.map { |n| {x: Math.rand * 1280 * 2 - 640, y: Math.rand * 720 * 2 + 720, row: 1, col: n, path: 'sprites/circle-orange.png', move_state: :retreat} }
+  enemies += 8.times.map { |n| {x: Math.rand * 1280 * 2 - 640, y: Math.rand * 720 * 2 + 720, row: 2, col: n + 1, path: 'sprites/circle-blue.png', move_state: :retreat} }
+  enemies += 8.times.map { |n| {x: Math.rand * 1280 * 2 - 640, y: Math.rand * 720 * 2 + 720, row: 3, col: n + 1, path: 'sprites/circle-blue.png', move_state: :retreat} }
+  enemies += 4.times.map { |n| {x: Math.rand * 1280 * 2 - 640, y: Math.rand * 720 * 2 + 720, row: 4, col: n + 3, path: 'sprites/circle-green.png', move_state: :retreat} }
+  enemies
+end
+
+def update_explosions args
+  args.state.explosions.each do |explosion|
+    explosion[:age]  += 0.5
+    explosion[:path] = "sprites/explosion-#{explosion[:age].floor}.png"
+  end
+  args.state.explosions = args.state.explosions.reject { |explosion| explosion[:age] >= 7 }
+end
+
+def update_enemy_positions args
+  args.state.enemies.each do |enemy|
+    if enemy[:move_state] == :normal
+      enemy[:x]          = args.state.columns[enemy[:col]]
+      enemy[:y]          = args.state.rows[enemy[:row]]
+      enemy[:move_state] = :dive if Math.rand < 0.0002 + 0.00005 * args.state.wave && args.state.player[:alive]
+    elsif enemy[:move_state] == :dive
+      enemy[:target_x] ||= args.state.player[:x]
+      enemy[:target_y] ||= args.state.player[:y]
+      dx               = enemy[:target_x] - enemy[:x]
+      dy               = enemy[:target_y] - enemy[:y]
+      vel              = Math.sqrt(dx * dx + dy * dy)
+      speed_limit      = 2 + args.state.wave_root
+      if vel > speed_limit
+        dx /= vel / speed_limit
+        dy /= vel / speed_limit
+      end
+      if vel < 1 || !args.state.player[:alive]
+        enemy[:move_state] = :retreat
+      end
+      enemy[:x] += dx
+      enemy[:y] += dy
+    elsif enemy[:move_state] == :retreat
+      enemy[:target_x] = args.state.columns[enemy[:col]]
+      enemy[:target_y] = args.state.rows[enemy[:row]]
+      dx               = enemy[:target_x] - enemy[:x]
+      dy               = enemy[:target_y] - enemy[:y]
+      vel              = Math.sqrt(dx * dx + dy * dy)
+      speed_limit      = 2 + args.state.wave_root
+      if vel > speed_limit
+        dx /= vel / speed_limit
+        dy /= vel / speed_limit
+      elsif vel < 1
+        enemy[:move_state] = :normal
+        enemy[:target_x]   = nil
+        enemy[:target_y]   = nil
+      end
+      enemy[:x] += dx
+      enemy[:y] += dy
+    end
+  end
+end
diff --git a/samples/99_genre_rpg_tactical/taking_turns/run.bat b/samples/99_genre_rpg_tactical/taking_turns/run.bat
new file mode 100644
index 0000000..36335e3
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/taking_turns/run.bat
@@ -0,0 +1,6 @@
+cd /d %~dp0
+
+cd ..
+cd ..
+cd ..
+dragonruby samples/99_genre_arcade/dragalaga
diff --git a/samples/99_genre_rpg_tactical/taking_turns/sprites/circle-blue.png b/samples/99_genre_rpg_tactical/taking_turns/sprites/circle-blue.png
new file mode 100644
index 0000000..1726d2a
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/taking_turns/sprites/circle-blue.png
diff --git a/samples/99_genre_rpg_tactical/taking_turns/sprites/circle-gray.png b/samples/99_genre_rpg_tactical/taking_turns/sprites/circle-gray.png
new file mode 100644
index 0000000..960f191
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/taking_turns/sprites/circle-gray.png
diff --git a/samples/99_genre_rpg_tactical/taking_turns/sprites/circle-green.png b/samples/99_genre_rpg_tactical/taking_turns/sprites/circle-green.png
new file mode 100644
index 0000000..43cf7ee
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/taking_turns/sprites/circle-green.png
diff --git a/samples/99_genre_rpg_tactical/taking_turns/sprites/circle-orange.png b/samples/99_genre_rpg_tactical/taking_turns/sprites/circle-orange.png
new file mode 100644
index 0000000..5604a42
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/taking_turns/sprites/circle-orange.png
diff --git a/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-0.png b/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-0.png
new file mode 100644
index 0000000..f48636f
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-0.png
diff --git a/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-1.png b/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-1.png
new file mode 100644
index 0000000..b4018d9
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-1.png
diff --git a/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-2.png b/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-2.png
new file mode 100644
index 0000000..3abaedd
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-2.png
diff --git a/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-3.png b/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-3.png
new file mode 100644
index 0000000..fe94a5a
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-3.png
diff --git a/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-4.png b/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-4.png
new file mode 100644
index 0000000..ed04237
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-4.png
diff --git a/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-5.png b/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-5.png
new file mode 100644
index 0000000..2cd8f06
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-5.png
diff --git a/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-6.png b/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-6.png
new file mode 100644
index 0000000..e55909c
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/taking_turns/sprites/explosion-6.png
diff --git a/samples/99_genre_rpg_tactical/taking_turns/sprites/star.png b/samples/99_genre_rpg_tactical/taking_turns/sprites/star.png
new file mode 100644
index 0000000..e0ee0f9
--- /dev/null
+++ b/samples/99_genre_rpg_tactical/taking_turns/sprites/star.png