Class: Termfront::Player

Inherits:
Object
  • Object
show all
Defined in:
lib/termfront/player.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(x:, y:, angle:, weapons:) ⇒ Player

Returns a new instance of Player.



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# File 'lib/termfront/player.rb', line 10

def initialize(x:, y:, angle:, weapons:)
  @x = x
  @y = y
  @angle = angle
  @weapons = weapons
  @weapon_idx = 0
  @last_fire = 0.0
  @shield = Config::SHIELD_MAX
  @health = Config::HEALTH_MAX
  @dead = false
  @game_time = 0.0
  @last_damage = -Config::SHIELD_DELAY
  @damage_flash = 0
  @fire_flash = 0
  @beep_count = 0
  @last_beep = 0.0
  @regen_active = false
  @swap_pressed = false
  @pickup_pressed = false
  @drops = []
end

Instance Attribute Details

#angle ⇒ Object

Returns the value of attribute angle.



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# File 'lib/termfront/player.rb', line 5

def angle
  @angle
end

#beep_count ⇒ Object

Returns the value of attribute beep_count.



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# File 'lib/termfront/player.rb', line 5

def beep_count
  @beep_count
end

#damage_flash ⇒ Object

Returns the value of attribute damage_flash.



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# File 'lib/termfront/player.rb', line 5

def damage_flash
  @damage_flash
end

#dead ⇒ Object

Returns the value of attribute dead.



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# File 'lib/termfront/player.rb', line 5

def dead
  @dead
end

#drops ⇒ Object

Returns the value of attribute drops.



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# File 'lib/termfront/player.rb', line 5

def drops
  @drops
end

#fire_flash ⇒ Object

Returns the value of attribute fire_flash.



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# File 'lib/termfront/player.rb', line 5

def fire_flash
  @fire_flash
end

#game_time ⇒ Object

Returns the value of attribute game_time.



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# File 'lib/termfront/player.rb', line 5

def game_time
  @game_time
end

#health ⇒ Object

Returns the value of attribute health.



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# File 'lib/termfront/player.rb', line 5

def health
  @health
end

#last_beep ⇒ Object

Returns the value of attribute last_beep.



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# File 'lib/termfront/player.rb', line 5

def last_beep
  @last_beep
end

#last_damage ⇒ Object

Returns the value of attribute last_damage.



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# File 'lib/termfront/player.rb', line 5

def last_damage
  @last_damage
end

#last_fire ⇒ Object

Returns the value of attribute last_fire.



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# File 'lib/termfront/player.rb', line 5

def last_fire
  @last_fire
end

#pickup_pressed ⇒ Object

Returns the value of attribute pickup_pressed.



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# File 'lib/termfront/player.rb', line 5

def pickup_pressed
  @pickup_pressed
end

#regen_active ⇒ Object

Returns the value of attribute regen_active.



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# File 'lib/termfront/player.rb', line 5

def regen_active
  @regen_active
end

#shield ⇒ Object

Returns the value of attribute shield.



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# File 'lib/termfront/player.rb', line 5

def shield
  @shield
end

#swap_pressed ⇒ Object

Returns the value of attribute swap_pressed.



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# File 'lib/termfront/player.rb', line 5

def swap_pressed
  @swap_pressed
end

#weapon_idx ⇒ Object

Returns the value of attribute weapon_idx.



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# File 'lib/termfront/player.rb', line 5

def weapon_idx
  @weapon_idx
end

#weapons ⇒ Object

Returns the value of attribute weapons.



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# File 'lib/termfront/player.rb', line 5

def weapons
  @weapons
end

#x ⇒ Object

Returns the value of attribute x.



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# File 'lib/termfront/player.rb', line 5

def x
  @x
end

#y ⇒ Object

Returns the value of attribute y.



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# File 'lib/termfront/player.rb', line 5

def y
  @y
end

Instance Method Details

#apply_damage(amount) ⇒ Object 



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# File 'lib/termfront/player.rb', line 40

def apply_damage(amount)
  @last_damage = @game_time
  @damage_flash = 3

  if @shield > 0
    overflow = amount - @shield
    @shield = [(@shield - amount), 0].max
    @health = [@health - [overflow, 0].max, 0].max if @shield == 0
  else
    @health = [@health - amount, 0].max
  end

  @dead = true if @health <= 0
end

#current_weapon ⇒ Object 



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# File 'lib/termfront/player.rb', line 32

def current_weapon
  @weapons[@weapon_idx]
end

#process_fire(enemies, map) ⇒ Object 



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# File 'lib/termfront/player.rb', line 115

def process_fire(enemies, map)
  dx = Math.cos(@angle)
  dy = Math.sin(@angle)

  weapon = current_weapon

  best = nil
  best_d = 1e30
  enemies.each do |e|
    next unless e.alive

    ex = e.x - @x
    ey = e.y - @y
    dot = ex * dx + ey * dy
    next if dot < 0.1

    perp = (ex * (-dy) + ey * dx).abs
    next if perp > weapon.hit_width

    if dot < best_d && map.line_of_sight?(@x, @y, e.x, e.y)
      best = e
      best_d = dot
    end
  end
  return unless best

  best.take_damage(1)
  return if best.alive

  @drops << DropItem::Weapon.new(x: best.x, y: best.y, type: best.drop_type, ammo: best.drop_ammo)
end

#swap_weapon ⇒ Object 



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# File 'lib/termfront/player.rb', line 36

def swap_weapon
  @weapon_idx = 1 - @weapon_idx
end

#try_pickup ⇒ Object 



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# File 'lib/termfront/player.rb', line 92

def try_pickup
  nearest = nil
  best_d2 = Config::PICKUP_RADIUS**2
  @drops.each do |d|
    d2 = (d.x - @x)**2 + (d.y - @y)**2
    if d2 < best_d2
      nearest = d
      best_d2 = d2
    end
  end
  return unless nearest

  cur = current_weapon
  if cur.type_id == nearest.type
    max = cur.max_ammo
    cur.ammo = [cur.ammo + nearest.ammo, max].min if max
  else
    @drops << DropItem::Weapon.new(x: @x, y: @y, type: cur.type_id, ammo: cur.ammo)
    @weapons[@weapon_idx] = Weapon::Base.build(nearest.type, nearest.ammo)
  end
  @drops.delete(nearest)
end

#update_shield(dt, stdout, audio: nil) ⇒ Object 



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# File 'lib/termfront/player.rb', line 55

def update_shield(dt, stdout, audio: nil)
  regen_now = @shield < Config::SHIELD_MAX && (@game_time - @last_damage) >= Config::SHIELD_DELAY
  if regen_now
    unless @regen_active
      @regen_active = true
      if audio
        audio.play_loop_se(:shield_regen)
      else
        stdout.syswrite("\a")
      end
    end
    @shield = [@shield + Config::SHIELD_REGEN * dt, Config::SHIELD_MAX].min
  else
    audio&.stop_loop_se(:shield_regen) if @regen_active
    @regen_active = false
  end
  @damage_flash -= 1 if @damage_flash > 0

  if @shield >= Config::SHIELD_MAX && @health < Config::HEALTH_MAX
    @health = [@health + Config::SHIELD_REGEN * dt, Config::HEALTH_MAX].min
  end

  return unless @shield == 0 && @health > 0

  @beep_count = 3 if @beep_count <= 0
  now = Process.clock_gettime(Process::CLOCK_MONOTONIC)
  return unless (now - @last_beep) >= Config::BEEP_INTERVAL

  if audio
    audio.play_se(:shield_alarm)
  else
    stdout.syswrite("\a")
  end
  @last_beep = now
  @beep_count -= 1
end