#===============================================================================
# * Cara Menggunakan Script
#-------------------------------------------------------------------------------
# Panggil script dari event dengan cara memilih tab advanced, script, kemudian
# masukkan kode berikut:
#
# $scene = Scene_Tembak2.new(custom, bulletspeed, movespeed, spawntime, limit, onscore)
# ket:
#  - custom = dapat diisi dengan nilai true atau false. Bila diisi dengan true,
#              game akan berjalan standard, dan argumen lain tidak perlu lagi diisi
#  - bulletspeed = kecepatan peluru. Isi dengan angka
#  - movespeed = kecepatan gerak. Isi dengan angka
#  - spawntime = waktu untuk memunculkan musuh baru. Semakin sedikit nilainya semakin cepat musuh muncul
#  - limit = target score atau waktu(dalam frame)
#  - onscore = diisi dengan nilai true atau false. Bila true, maka bila score mencapai nilai limit, anda menang
#              bila false, maka bila nilai waktu mencapai nilai limit, anda menang
#
# Script ini sangat kaku, artinya konfigurasi nya sangat sedikit dan terbatas >.<
# Konfigurasi dapat dilakukan dengan mengubah nilai2 konstanta2 di bawah ini
#===============================================================================
module Hart
  module Tembak2
#===============================================================================
# * Gameplay related configuration
#===============================================================================
PLAYER_STARTING_MOVESPEED = 3
BULLET_STARTING_MOVESPEED = 4
ENEMY_MOVESPEED = [1, 1, 1, 1]
ENEMY_SCORE = [100, 150, 200, 250]
SCORE_VARIABLE_ID = 1
HIGHSCORE_VARIABLE_ID = 2
CUSTOM_MODE_RESULT_VARIABLE_ID = 3
SHOOT_DELAY = 30
ENEMY_SHOOT_DELAY = [100, 100, 80, 0]
PLAYER_COLLISION_TOLERANCE = 0
STARTING_SPAWN_TIME = 360
LEVEL_SCORE_INTERVAL = 1000
SPAWN_TIME_INTERVAL = 40
MOVESPEED_INTERVAL = 2
BULLETSPEED_INTERVAL = 2
#===============================================================================
# * Graphics related configuration
#===============================================================================
GRAPHICS_PATH = "Graphics/Pictures/"
PLAYER_IMAGE = "player.png"
ENEMY_IMAGE = ["enemy1.png", "enemy2.png", "enemy3.png", "enemy4.png"]
PLAYER_BULLET_IMAGE = "playerbullet.png"
ENEMY_BULLET_IMAGE = "enemybullet1.png"
EXPLOSION_IMAGE = "explosion.png"
BACKGROUND_IMAGE = "background.png"
OBJECT1_IMAGE = "island1.png"
OBJECT2_IMAGE = "island2.png"
OBJECT3_IMAGE = "island3.png"

PLAYER_IMAGE_FRAMES = 3
ENEMY_IMAGE_FRAMES = 3
EXPLOSION_IMAGE_FRAMES = 6
BULLET_IMAGE_SIZE = 8
BACKGROUND_SCROLLING_SPEED = 2
#===============================================================================
# * SE related configuration
#===============================================================================
SE_PATH = "Audio/SE/"
EXPLOSION_SOUND = "explosion.wav"
#===============================================================================
  end
end

class Tembak2_Object
  attr_accessor :x
  attr_accessor :y
  attr_accessor :end
  attr_accessor :sprite
 
  def initialize
    @x = -100
    @y = -100
    @end = false
    @sprite = Sprite.new
    @sprite.x = @x
    @sprite.y = @y
  end
 
  def update
    @sprite.x = @x
    @sprite.y = @y
  end
 
  def dispose
    @sprite.dispose
  end
end

class Tembak2_Bullet < Tembak2_Object
  attr_accessor :speed
  attr_accessor :type
  attr_accessor :angle
 
  def initialize(x, y, speed, type, angle = 0)
    super()
    @x = x
    @y = y
    @speed = speed
    @type = type
    @angle = angle
    @sprite.z = 10
    if @type == 0
      @sprite.bitmap = Cache.load_bitmap(Hart::Tembak2::GRAPHICS_PATH, Hart::Tembak2::PLAYER_BULLET_IMAGE)
    else
      @sprite.bitmap = Cache.load_bitmap(Hart::Tembak2::GRAPHICS_PATH, Hart::Tembak2::ENEMY_BULLET_IMAGE)
    end   
  end
 
  def update
    super
    if @type == 0
      @y -= @speed
    else
      @y += @speed * Math.cos(@angle * 180 / 3.14)
      @x += @speed * Math.sin(@angle * 180 / 3.14)
    end
   
    @end = true if @y < 0 - @sprite.bitmap.height || @y > Graphics.height + @sprite.bitmap.height
  end
 
  def dispose
    super
  end
end

class Tembak2_Player < Tembak2_Object
  attr_accessor :speed
  attr_accessor :bulletcount
  attr_accessor :bulletspeed
 
  def initialize
    super
    @x = 240
    @y = 300
    @speed = Hart::Tembak2::PLAYER_STARTING_MOVESPEED
    @sprite.z = 100
    @frame = 0
    @frame_delay = 0
    #@bulletspeed = Hart::Tembak2::BULLET_STARTING_MOVESPEED
    @bulletcount = Hart::Tembak2::SHOOT_DELAY
 
    @bullets = []
   
    temp = Cache.load_bitmap(Hart::Tembak2::GRAPHICS_PATH, Hart::Tembak2::PLAYER_IMAGE)
    frame_width = temp.width / Hart::Tembak2::PLAYER_IMAGE_FRAMES
    frame_height = temp.height
    @sprite.bitmap = Bitmap.new(frame_width, frame_height)
  end
 
  def update
    super
    @frame_delay += 1
    @bulletcount -= 1
    if @frame_delay >= 5
      @frame_delay = 0
      @frame = (@frame + 1) % Hart::Tembak2::PLAYER_IMAGE_FRAMES
      temp = Cache.load_bitmap(Hart::Tembak2::GRAPHICS_PATH, Hart::Tembak2::PLAYER_IMAGE)
      frame_width = temp.width / Hart::Tembak2::PLAYER_IMAGE_FRAMES
      frame_height = temp.height
      rect = Rect.new(@frame * frame_width, 0, frame_width, frame_height)
      @sprite.bitmap.blt(0, 0, temp, rect)
    end
  end
 
  def dispose
    super
  end
end

class Tembak2_Enemy < Tembak2_Object
  attr_accessor :type
  attr_accessor :speed
  attr_accessor :bulletcount
  attr_accessor :bulletspeed
 
  def initialize(x, y, type)
    super()
    @x = x
    @y = y
    @type = type
    @speed = Hart::Tembak2::ENEMY_MOVESPEED[type]
    @sprite.z = 99
    @frame = 0
    @frame_delay = 0
    #@bulletspeed = Hart::Tembak2::BULLET_STARTING_MOVESPEED
    @bulletcount = Hart::Tembak2::ENEMY_SHOOT_DELAY[@type]
   
    @bullets = []
   
    temp = Cache.load_bitmap(Hart::Tembak2::GRAPHICS_PATH, Hart::Tembak2::ENEMY_IMAGE[@type])
    frame_width = temp.width / Hart::Tembak2::ENEMY_IMAGE_FRAMES
    frame_height = temp.height
    @sprite.bitmap = Bitmap.new(frame_width, frame_height)
  end
 
  def update
    super
    @frame_delay += 1
    @bulletcount -= 1
    if @frame_delay >= 5
      @frame_delay = 0
      @frame = (@frame + 1) % Hart::Tembak2::ENEMY_IMAGE_FRAMES
      temp = Cache.load_bitmap(Hart::Tembak2::GRAPHICS_PATH, Hart::Tembak2::ENEMY_IMAGE[@type])
      frame_width = temp.width / Hart::Tembak2::ENEMY_IMAGE_FRAMES
      frame_height = temp.height
      rect = Rect.new(@frame * frame_width, 0, frame_width, frame_height)
      @sprite.bitmap.blt(0, 0, temp, rect)
    end
   
    if @type == 3
      @y -= @speed
    else
      @y += @speed
    end
   
    if @type == 3
      @end = true if @y < -@sprite.bitmap.height
    else
      @end = true if @y > Graphics.height + @sprite.bitmap.height
    end
  end
 
  def dispose
    super
  end
end

class Tembak2_Background
  def initialize
    @sprite1 = Sprite.new
    @sprite1.bitmap = Cache.load_bitmap(Hart::Tembak2::GRAPHICS_PATH, Hart::Tembak2::BACKGROUND_IMAGE)
    @sprite1.z = 0
    @sprite1.x = 0
    @sprite1.y = 0
    @sprite2 = Sprite.new
    @sprite2.bitmap = Cache.load_bitmap(Hart::Tembak2::GRAPHICS_PATH, Hart::Tembak2::BACKGROUND_IMAGE)
    @sprite1.z = 0
    @sprite1.x = 0
    @sprite1.y = 0 - Graphics.height
    @scroll_speed = Hart::Tembak2::BACKGROUND_SCROLLING_SPEED
   
    @sprite_obj1 = Sprite.new
    @sprite_obj1.bitmap = Cache.load_bitmap(Hart::Tembak2::GRAPHICS_PATH, Hart::Tembak2::OBJECT1_IMAGE)
    @sprite_obj1.x = rand(Graphics.width - @sprite_obj1.bitmap.width)
    @sprite_obj1.y = 30
    @sprite_obj1.z = 1
    @sprite_obj2 = Sprite.new   
    @sprite_obj2.bitmap = Cache.load_bitmap(Hart::Tembak2::GRAPHICS_PATH, Hart::Tembak2::OBJECT2_IMAGE)
    @sprite_obj2.x = rand(Graphics.width - @sprite_obj2.bitmap.width)
    @sprite_obj2.y = 185
    @sprite_obj2.z = 1
    @sprite_obj3 = Sprite.new
    @sprite_obj3.bitmap = Cache.load_bitmap(Hart::Tembak2::GRAPHICS_PATH, Hart::Tembak2::OBJECT3_IMAGE)
    @sprite_obj3.x = rand(Graphics.width - @sprite_obj3.bitmap.width)
    @sprite_obj3.y = 320
    @sprite_obj3.z = 1
  end
 
  def update
    @sprite1.y += @scroll_speed
    @sprite2.y += @scroll_speed
    if @sprite1.y >= Graphics.height || @sprite2.y >= 0
      @sprite1.y = 0
      @sprite2.y = -Graphics.height
    end
   
    @sprite_obj1.y += @scroll_speed
    if @sprite_obj1.y >= Graphics.height
      @sprite_obj1.y = -65
      @sprite_obj1.x = rand(Graphics.width - @sprite_obj1.bitmap.width)
    end
   
    @sprite_obj2.y += @scroll_speed
    if @sprite_obj2.y >= Graphics.height
      @sprite_obj2.y = -65
      @sprite_obj2.x = rand(Graphics.width - @sprite_obj2.bitmap.width)
    end
   
    @sprite_obj3.y += @scroll_speed
    if @sprite_obj3.y >= Graphics.height
      @sprite_obj3.y = -65
      @sprite_obj3.x = rand(Graphics.width - @sprite_obj3.bitmap.width)
    end
  end
 
  def dispose
    @sprite1.dispose
    @sprite2.dispose
    @sprite_obj1.dispose
    @sprite_obj2.dispose
    @sprite_obj3.dispose
  end
end

class Tembak2_Explosion
  attr_accessor :end
  def initialize(x, y)
    @sprite = Sprite.new
    temp = Cache.load_bitmap(Hart::Tembak2::GRAPHICS_PATH, Hart::Tembak2::EXPLOSION_IMAGE)
    frame_width = temp.width / Hart::Tembak2::EXPLOSION_IMAGE_FRAMES
    frame_height = temp.height
    @sprite.bitmap = Bitmap.new(frame_width, frame_height)
    @sprite.z = 120
    @sprite.x = x
    @sprite.y = y
    @frame_delay = 0
    @frame = 0
    @end = false
  end
 
  def update
    @frame_delay += 1
    if @frame_delay >= 5
      @frame_delay = 0
      @frame += 1
      temp = Cache.load_bitmap(Hart::Tembak2::GRAPHICS_PATH, Hart::Tembak2::EXPLOSION_IMAGE)
      frame_width = temp.width / Hart::Tembak2::EXPLOSION_IMAGE_FRAMES
      frame_height = temp.height
      rect = Rect.new(@frame * frame_width, 0, frame_width, frame_height)
      @sprite.bitmap.blt(0, 0, temp, rect)
    end
    @end = true if @frame >= 5
  end
 
  def dispose
    @sprite.dispose
  end
end

class Scene_Tembak2 < Scene_Base 
  def initialize(custom = false, bullet_speed = 0, spawn_time = 0, movespeed = 0, limit = 0, on_score = false)
    @player = Tembak2_Player.new
    @enemies = []
    @bullets = []
    @explosions = []
    @background = Tembak2_Background.new
    @score = 0
    @spawn_count = 0
    @custom = custom
    if custom
      @bullet_speed = bullet_speed
      @spawn_time = spawn_time
      @limit = limit
      @on_score = on_score
      @player.speed = movespeed
      @time = 0
    else
      @bullet_speed = Hart::Tembak2::BULLET_STARTING_MOVESPEED
      @spawn_time = Hart::Tembak2::STARTING_SPAWN_TIME
      @level = 0
    end
  end
 
  def start
    super
    @spr_score = Sprite.new
    @spr_score.bitmap = Bitmap.new(Graphics.width, 32)
    @spr_score.bitmap.clear
    @spr_score.x = 0
    @spr_score.y = Graphics.height / 2
    @spr_score.z = 150
  end
 
  def terminate
    super
    @player.dispose
    @background.dispose
    @spr_score.dispose
    for enemy in @enemies
      next if enemy == nil
      enemy.dispose
    end
    for bullet in @bullets
      next if bullet == nil
      bullet.dispose
    end
    for explosion in @explosions
      next if explosion == nil
      explosion.dispose
    end
  end
 
  def update
    super
    @background.update
    @player.update
    @spr_score.bitmap.clear
    @spr_score.bitmap.draw_text(0, 0, Graphics.width, 32, "Score: " + @score.to_s)
    spawn_enemy
    update_level
    for enemy in @enemies
      next if enemy == nil
      if enemy.bulletcount <= 0
        enemy.bulletcount = Hart::Tembak2::ENEMY_SHOOT_DELAY[enemy.type]
        if enemy.type == 0
          @bullets.push(Tembak2_Bullet.new(enemy.x + enemy.sprite.bitmap.width / 2 - Hart::Tembak2::BULLET_IMAGE_SIZE, enemy.y + enemy.sprite.bitmap.height - Hart::Tembak2::BULLET_IMAGE_SIZE, @bullet_speed, (enemy.type + 1), rand(360)))
        elsif enemy.type == 1
          @bullets.push(Tembak2_Bullet.new(enemy.x + enemy.sprite.bitmap.width / 2 - Hart::Tembak2::BULLET_IMAGE_SIZE, enemy.y + enemy.sprite.bitmap.height - Hart::Tembak2::BULLET_IMAGE_SIZE, @bullet_speed, (enemy.type + 1), 210))
          @bullets.push(Tembak2_Bullet.new(enemy.x + enemy.sprite.bitmap.width / 2 - Hart::Tembak2::BULLET_IMAGE_SIZE, enemy.y + enemy.sprite.bitmap.height - Hart::Tembak2::BULLET_IMAGE_SIZE, @bullet_speed, (enemy.type + 1), -210))
        elsif enemy.type == 2
          @bullets.push(Tembak2_Bullet.new(enemy.x + enemy.sprite.bitmap.width / 2 - Hart::Tembak2::BULLET_IMAGE_SIZE, enemy.y + enemy.sprite.bitmap.height - Hart::Tembak2::BULLET_IMAGE_SIZE, @bullet_speed, (enemy.type + 1)))
        end
      end
      enemy.update if !enemy.end
      enemy.dispose if enemy.end
      enemy = nil if enemy.end
    end
    for bullet in @bullets
      next if bullet == nil
      bullet.update if !bullet.end
      bullet.dispose if bullet.end
      bullet = nil if bullet.end
    end
    for explosion in @explosions
      next if explosion == nil
      explosion.update if !explosion.end
      explosion.dispose if explosion.end
      explosion = nil if explosion.end
    end
    update_input
    check_collision
    tembak2_end if @player.end
  end
 
  def check_collision
    for bullet in @bullets
      next if bullet == nil || bullet.end
      for enemy in @enemies
        next if enemy == nil || enemy.end
        if bullet.type == 0 && collide?(bullet, enemy)
          Audio.se_play(Hart::Tembak2::SE_PATH + Hart::Tembak2::EXPLOSION_SOUND)
         
          @explosions.push(Tembak2_Explosion.new(enemy.x, enemy.y))
          @score += Hart::Tembak2::ENEMY_SCORE[enemy.type]
         
          enemy.end = true
          enemy.dispose
          bullet.end = true
          bullet.dispose
        end
      end
    end
   
    for enemy in @enemies
      next if enemy == nil || enemy.end
      if collide?(@player, enemy, true)
        Audio.se_play(Hart::Tembak2::SE_PATH + Hart::Tembak2::EXPLOSION_SOUND)
       
        @player.end = true
        @player.sprite.visible = false
      end
    end
   
    for bullet in @bullets
      next if bullet == nil || bullet.end
      if bullet.type > 0 && collide?(bullet, @player, true)
        Audio.se_play(Hart::Tembak2::SE_PATH + Hart::Tembak2::EXPLOSION_SOUND)
        @player.end = true
        @player.sprite.visible = false
      end
    end
  end
 
  def collide?(obj1, obj2, player = false)
    if player
      return obj1.x > obj2.x - obj1.sprite.bitmap.width + Hart::Tembak2::PLAYER_COLLISION_TOLERANCE && obj1.x < obj2.x + obj2.sprite.bitmap.width - Hart::Tembak2::PLAYER_COLLISION_TOLERANCE && obj1.y > obj2.y - obj1.sprite.bitmap.height + Hart::Tembak2::PLAYER_COLLISION_TOLERANCE && obj1.y < obj2.y + obj1.sprite.bitmap.height - Hart::Tembak2::PLAYER_COLLISION_TOLERANCE
    else
      return obj1.x > obj2.x - obj1.sprite.bitmap.width && obj1.x < obj2.x + obj2.sprite.bitmap.width && obj1.y > obj2.y - obj1.sprite.bitmap.height && obj1.y < obj2.y + obj1.sprite.bitmap.height
    end
  end
 
  def update_input
    if Input.press?(Input::RIGHT)
      @player.x += @player.speed if @player.x < Graphics.width - @player.sprite.bitmap.width
    end
    if Input.press?(Input::LEFT)
      @player.x -= @player.speed if @player.x > 0
    end
    if Input.press?(Input::UP)
      @player.y -= @player.speed if @player.y > 0
    end
    if Input.press?(Input::DOWN)
      @player.y += @player.speed if @player.y < Graphics.height - @player.sprite.bitmap.height
    end
    if Input.press?(Input::X)
      if @player.bulletcount <= 0
        @player.bulletcount = Hart::Tembak2::SHOOT_DELAY
        @bullets.push(Tembak2_Bullet.new(@player.x + @player.sprite.bitmap.width / 2 - 16, @player.y, @bullet_speed, 0))
      end
    end
  end
 
  def spawn_enemy
    @spawn_count += 1
    if @spawn_count >= @spawn_time
      @spawn_count = 0
      type = rand(4)
      if type == 3
        y = Graphics.height + 65
      else
        y = -65
      end
      x = rand(Graphics.width - 32)
      @enemies.push(Tembak2_Enemy.new(x, y, type))
    end
  end
 
  def update_level
    if @custom
      if @on_score
        if @score >= @limit
          @player.end = true
          $game_variables[Hart::Tembak2::CUSTOM_MODE_RESULT_VARIABLE_ID] = 1
        end
      else
        @time += 1
        if @time >= @limit
          @player.end = true
          $game_variables[Hart::Tembak2::CUSTOM_MODE_RESULT_VARIABLE_ID] = 1
        end
      end
    else
      if @score >= 8 * Hart::Tembak2::LEVEL_SCORE_INTERVAL
        @level = 8
      elsif @score >= 7 * Hart::Tembak2::LEVEL_SCORE_INTERVAL
        @level = 7
      elsif @score >= 6 * Hart::Tembak2::LEVEL_SCORE_INTERVAL
        @level = 6
      elsif @score >= 5 * Hart::Tembak2::LEVEL_SCORE_INTERVAL
        @level = 5
      elsif @score >= 4 * Hart::Tembak2::LEVEL_SCORE_INTERVAL
        @level = 4
      elsif @score >= 3 * Hart::Tembak2::LEVEL_SCORE_INTERVAL
        @level = 3
      elsif @score >= 2 * Hart::Tembak2::LEVEL_SCORE_INTERVAL
        @level = 2
      elsif @score >= Hart::Tembak2::LEVEL_SCORE_INTERVAL
        @level = 1
      end
     
      @bullet_speed = Hart::Tembak2::BULLET_STARTING_MOVESPEED + @level * Hart::Tembak2::BULLETSPEED_INTERVAL
      @player.speed = Hart::Tembak2::PLAYER_STARTING_MOVESPEED + @level * Hart::Tembak2::MOVESPEED_INTERVAL
      @spawn_time = Hart::Tembak2::STARTING_SPAWN_TIME + @level * Hart::Tembak2::SPAWN_TIME_INTERVAL
      @spawn_time = 5 if @spawn_time < 5
    end
  end
 
  def tembak2_end
    Graphics.wait(60)
    $game_variables[1] = @score
    $game_variables[2] = @score if @score > $game_variables[2]
    $scene = Scene_Map.new
  end
end