Snake Minigame V1.0

#==============================================================================# ** General Configuration#------------------------------------------------------------------------------#  You can set Parameters here#==============================================================================$snake_speed = 1$speed_acceleration = 0.1#return score to variable [Let it to 0 if you don't want to return score to a variable] :$score_variable_id = 20#text if we lose :$lose_text = "Game Over"#if we press Cancel key (escape) :#0 = Leave to map instantly#1 = Pause game and ask player if he want to leave$cancel_action = 1#Score Management :#every time snake move it decrease by 1 the value of the score the food give$everytime_snake_move = 1$everytime_snake_eat = 100#Graphics Settings#if you don't want graphics set all to : nil#(image must be 32x16 pixel in picture folder first 16 pixel = looking to right side, last 16 pixel = looking to down side)$head_graphics = "head"$body_graphics = "body"$food_graphics = nil#==============================================================================# ** Window_PauseCommand#------------------------------------------------------------------------------#  This command window appears when escape is pressed while playing#==============================================================================class Window_PauseCommand < Window_Command  def initialize(x,y)    super(x, y)  end  def make_command_list    add_command("Continue",   :continue,   true)    add_command("Leave",   :leave,   true)  end end#===============================================================================# ** Score_Window#-------------------------------------------------------------------------------#  This window display the score                                           #===============================================================================class Window_Score < Window_Base  def initialize(x, y)    super(x, y, 160, line_height + 32)    @score = 0    refresh    self.opacity = 0    self.back_opacity = 0  end  def update_score(score)    @score = score  end   def refresh    self.contents.clear    self.contents.draw_text(0, 0, 200, line_height, @score)  endend#===============================================================================# ** Snake_Body#-------------------------------------------------------------------------------#  This class is the snake head and body                                           #===============================================================================class Snake_Body    attr_accessor :x    attr_accessor :y    attr_accessor :direction  def initialize(x,y,direction)    @sprite = Sprite.new    @x = x    @y = y    @sprite.x = x*16    @sprite.y = y*16    @lastx = @x    @lasty = @y    @graphicx = 0    @graphicy = 0    @sprite.bitmap = Bitmap.new(16,16)    @bmp = nil        if (direction != -1)#body      if ($body_graphics != nil)        @bmp = Cache.picture($body_graphics)        @sprite.bitmap.blt(0,0,@bmp,Rect.new(16,0,16,16))      else        @sprite.bitmap.fill_rect(Rect.new(0,0,16,16),Color.new(0,200,0))      end    else#head      if ($body_graphics != nil)        @bmp = Cache.picture($head_graphics)        @sprite.bitmap.blt(0,0,@bmp,Rect.new(16,0,16,16))      else        @sprite.bitmap.fill_rect(Rect.new(0,0,16,16),Color.new(0,250,0))      end      @direction = 0    end    @speed = 0  end   def updatelastpos()    @lastx = @x    @lasty = @y    @graphicx = 0    @graphicy = 0  end   def dispose()    @bmp.dispose    @sprite.dispose  end      def updatepos(speed)    @speed = speed    if (@x> @lastx)      @graphicx = (@graphicx+@speed)    end    if (@y > @lasty)      @graphicy = (@graphicy+@speed)    end    if (@x< @lastx)      @graphicx = (@graphicx-@speed)    end    if (@y < @lasty)      @graphicy = (@graphicy-@speed)    end    @sprite.x = (@lastx*16)+@graphicx    @sprite.y = (@lasty*16)+@graphicy      if @bmp != nil    if @lastdirection != @direction      @sprite.bitmap.clear      case @direction      when 0        @sprite.bitmap.blt(0,0,@bmp,Rect.new(16,0,16,16))      when 1        @sprite.bitmap.blt(0,0,@bmp,Rect.new(0,0,16,16))      when 2        @sprite.bitmap.blt(0,0,@bmp,Rect.new(16,16,16,-16))      when 3        @sprite.bitmap.blt(0,0,@bmp,Rect.new(16,0,-16,16))      end    end  end     @lastdirection = @direction  end  end   class Scene_Snake < Scene_Base   def initialize    super    create_window_score    create_window_command    create_sprites    create_settings    create_object_array    generate_food(rand(34),rand(26))  end  def update    super    if Input.trigger?(:      pause    end    if @pause == false      get_direction      if (@direction != -1)        @timer += @snake_speed        every_tick        update_snake              end    end   end   def terminate    super      end    def every_tick        if (@timer >= 16)      if @food_score > 0        @food_score = @food_score - 1      end      (@snakebody.size-1).downto(1){ |i|      @snakebody[i].direction = @snakebody[i-1].direction      @snakebody[i].updatelastpos()      @snakebody[i].x = @snakebody[i-1].x      @snakebody[i].y = @snakebody[i-1].y      }      @snakebody[0].direction = @direction      @snakebody[0].updatelastpos()              if (@direction == 0)#Down        @snakebody[0].y = @snakebody[0].y+1      end      if (@direction == 1)#Right        @snakebody[0].x = @snakebody[0].x+1      end      if (@direction == 2)#Up        @snakebody[0].y = @snakebody[0].y-1      end      if (@direction == 3)#Left        @snakebody[0].x= @snakebody[0].x-1      end             @window_score.update_score(@score)      @window_score.refresh            if (@snakebody[0].x > 33)        @snakebody[0].x = 0      end      if (@snakebody[0].x < 0)        @snakebody[0].x = 33      end      if (@snakebody[0].y > 25)        @snakebody[0].y = 0      end      if (@snakebody[0].y < 0)        @snakebody[0].y = 25      end              @timer = 0    end      end    def get_direction        if Input.press?(Input::DOWN)      @direction = 0    end    if Input.press?(Input::UP)      @direction = 2    end    if Input.press?(Input::LEFT)      @direction = 3    end    if Input.press?(Input::RIGHT)      @direction = 1    end  end   def update_snake    (@snakebody.size-1).downto(0){ |i|                if (i != 0)        if ((@snakebody[0].x == @snakebody[i].x) and (@snakebody[0].y == @snakebody[i].y))                                  $game_message.texts.push($lose_text)          command_leave          if $score_variable_id  != 0            $game_variables[$score_variable_id] = @score          end                               break;        end      end      @snakebody[i].updatepos(@snake_speed)}                 if ((@snakebody[0].x == @food_x) and (@snakebody[0].y == @food_y))      @snakebody.push(Snake_Body.new(@snakebody[@snakebody.size-1].x,@snakebody[@snakebody.size-1].y,@snakebody[@snakebody.size-1].direction))      @snake_speed = @snake_speed + @speed_acceleration      @score =  @score + @food_score      @window_score.update_score(@score)      @food_score = $everytime_snake_eat      generate_food(rand(34),rand(26))    end         end    def pause    if @pause == false      @window_command.activate      @window_command.visible = true      @pause = true    else      unpause    end  end   def unpause    @window_command.visible = false    @pause = false  end   def create_window_score    @window_score = Window_Score.new(0,0)  end   def create_window_command    @window_command = Window_PauseCommand.new(192,160)    @window_command.set_handler(:continue,      method(:command_continue))    @window_command.set_handler(:leave,      method(:command_leave))    @window_command.visible = false    @window_command.deactivate  end   def create_sprites    @food_sprite = Sprite.new    @food_sprite.bitmap = Bitmap.new(16,16)    if $food_graphics != nil      @food_sprite.bitmap = Cache.picture($food_graphics)    else      @food_sprite.bitmap.fill_rect(Rect.new(0,0,16,16),Color.new(250,230,130))    end  end   def create_object_array  @snakebody = []    @snakebody.push(Snake_Body.new(17,13,-1))    @snakebody.push(Snake_Body.new(17,13,0))    @snakebody.push(Snake_Body.new(17,13,0))  end   def create_settings    @snake_speed = $snake_speed    @speed_acceleration = $speed_acceleration    @direction = -1    @score = 0    @food_score = $everytime_snake_eat    @timer = 25    generate_food(rand(34),rand(26))    @food_x = 0    @food_y = 0    @leaving = false    @pause = false  end   def generate_food(x,y)    @food_x = x    @food_y = y    @food_sprite.x = x * 16    @food_sprite.y = y * 16  end   def command_continue    @window_command.visible = false    @pause = false  end   def command_leave    @window_command.dispose    SceneManager.call(Scene_Map)  end end