Class: Acceleration

Inherits:
Action show all
Defined in:
lib/software_challenge_client/action.rb

Overview

Accelerate by #acceleration. To decelerate, use a negative value.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Action

#invalid

Constructor Details

#initialize(acceleration) ⇒ Acceleration

Returns a new instance of Acceleration.



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# File 'lib/software_challenge_client/action.rb', line 35

def initialize(acceleration)
  @acceleration = acceleration
end

Instance Attribute Details

#acceleration ⇒ Object (readonly)

Returns the value of attribute acceleration.



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# File 'lib/software_challenge_client/action.rb', line 33

def acceleration
  @acceleration
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/software_challenge_client/action.rb', line 73

def ==(other)
  other.type == type && other.acceleration == acceleration
end

#perform!(gamestate, current_player) ⇒ Object

Perform the action.

Parameters:

  • gamestate (GameState) —

    The game state on which the action will be performed. Performing may change the game state.

  • current_player (Player) —

    The player for which the action will be performed.



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# File 'lib/software_challenge_client/action.rb', line 43

def perform!(gamestate, current_player)
  new_velocity = current_player.velocity + acceleration
  if new_velocity < 1
    invalid 'Geschwindigkeit darf nicht unter 1 verringert werden.'
  end
  if new_velocity > 6
    invalid 'Geschwindigkeit darf nicht über 6 erhöht werden.'
  end
  acceleration.abs.times do
    if gamestate.free_acceleration?
      gamestate.free_acceleration = false
    elsif current_player.coal.zero?
      invalid 'Nicht genug Kohle zum Beschleunigen.'
    else
      current_player.coal -= 1
    end
  end
  if gamestate.board.field(current_player.x, current_player.y).type == FieldType::SANDBANK
    invalid 'Auf einer Sandbank kann nicht beschleunigt werden.'
  end
  current_player.velocity = new_velocity
  # This works only when acceleration is the first action in a move. The move
  # class has to check that.
  current_player.movement = new_velocity
end

#type ⇒ Object 



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# File 'lib/software_challenge_client/action.rb', line 69

def type
  :acceleration
end