Class: Teien::SmoothMoving

Inherits:
Object
  • Object
show all
Defined in:
lib/teien/action_model/smooth_moving.rb

Constant Summary collapse

ACCELERATION = 
5.0
TURN_SPEED = 
500.0

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(target_object_name) ⇒ SmoothMoving 



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# File 'lib/teien/action_model/smooth_moving.rb', line 12

def initialize(target_object_name)
  @target_object_name = target_object_name
  @target_object = Teien::get_component("base_object_manager").objects[target_object_name]
  @acceleration = ACCELERATION
  @turn_speed = TURN_SPEED
  @move_dir = Ogre::Vector3.new(0, 0, 0)
  @forward_dir = Ogre::Vector3.new(0, 0, 0)
  @zero_vector = Vector3D.new(0, 0, 0)
  clear_action()
  @movable = true

  @event_router = Teien::get_component("event_router")
end

Instance Attribute Details

#acceleration ⇒ Object

Returns the value of attribute acceleration.



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# File 'lib/teien/action_model/smooth_moving.rb', line 8

def acceleration
  @acceleration
end

#movable ⇒ Object

Returns the value of attribute movable.



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# File 'lib/teien/action_model/smooth_moving.rb', line 10

def movable
  @movable
end

#target_object_name ⇒ Object

Returns the value of attribute target_object_name.



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# File 'lib/teien/action_model/smooth_moving.rb', line 7

def target_object_name
  @target_object_name
end

#turn_speed ⇒ Object

Returns the value of attribute turn_speed.



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# File 'lib/teien/action_model/smooth_moving.rb', line 9

def turn_speed
  @turn_speed
end

Instance Method Details

#clear_action ⇒ Object 



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# File 'lib/teien/action_model/smooth_moving.rb', line 26

def clear_action()
  @forward = false
  @backward = false
  @left = false
  @right = false
end

#move_backward(bool) ⇒ Object 



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# File 'lib/teien/action_model/smooth_moving.rb', line 56

def move_backward(bool)
  @backward = bool
end

#move_forward(bool) ⇒ Object 



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# File 'lib/teien/action_model/smooth_moving.rb', line 52

def move_forward(bool)
  @forward = bool
end

#move_left(bool) ⇒ Object 



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# File 'lib/teien/action_model/smooth_moving.rb', line 60

def move_left(bool)
  @left = bool
end

#move_right(bool) ⇒ Object 



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# File 'lib/teien/action_model/smooth_moving.rb', line 64

def move_right(bool)
  @right = bool
end

#moving? ⇒ Boolean 



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# File 'lib/teien/action_model/smooth_moving.rb', line 33

def moving?()
  return (@forward || @backward || @left || @right)
end

#set_acceleration(accel) ⇒ Object 



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# File 'lib/teien/action_model/smooth_moving.rb', line 37

def set_acceleration(accel)
  @acceleration = accel
end

#set_forward_direction(forward_dir) ⇒ Object

This direction is the forward.



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# File 'lib/teien/action_model/smooth_moving.rb', line 48

def set_forward_direction(forward_dir)
  @forward_dir = forward_dir
end

#set_turn_speed(turn_speed) ⇒ Object 



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# File 'lib/teien/action_model/smooth_moving.rb', line 41

def set_turn_speed(turn_speed)
  @turn_speed = turn_speed
end

#update_target(delta) ⇒ Object 



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# File 'lib/teien/action_model/smooth_moving.rb', line 69

def update_target(delta)
  @move_dir.x = 0
  @move_dir.y = 0
  @move_dir.z = 0

  # update target's acceleration
  if (@forward)
    @move_dir += Ogre::Vector3.new(@forward_dir.x, @forward_dir.y, @forward_dir.z)
  end
  if (@backward)
    @move_dir += Ogre::Vector3.new(-@forward_dir.x, -@forward_dir.y, -@forward_dir.z)
  end
  if (@left)
    @move_dir += Ogre::Vector3.new(@forward_dir.z, 0,  -@forward_dir.x)
  end
  if (@right)
    @move_dir += Ogre::Vector3.new(-@forward_dir.z, 0, @forward_dir.x)
  end

  @move_dir.y = 0
  @move_dir.normalise()

  if (@movable)
    newAcc = @move_dir * @acceleration
    @target_object.set_acceleration(Vector3D.to_self(newAcc))
  else
    @target_object.set_acceleration(@zero_vector)
  end

  # update target's direction
  toGoal = Vector3D.to_ogre(-@target_object.get_orientation().z_axis()).get_rotation_to(@move_dir)
  yawToGoal = toGoal.get_yaw().value_degrees()
  yawAtSpeed = yawToGoal / yawToGoal.abs * delta * @turn_speed

  if (yawToGoal < 0) 
    yawToGoal = [0, [yawToGoal, yawAtSpeed].max].min
  elsif (yawToGoal > 0) 
    yawToGoal = [0, [yawToGoal, yawAtSpeed].min].max
  end

  @target_object.yaw(Ogre::Degree.new(yawToGoal).value_radians())
end