PushButton Class Reference

PushButton - jump on it to run a script. More...

#include <pushbutton.hpp>

Inherits MovingSprite.

List of all members.

Public Member Functions
	PushButton (const Reader &reader)
HitResponse	collision (GameObject &other, const CollisionHit &hit)
	this function is called when the object collided with any other object
void	update (float elapsed_time)
	This function is called once per frame and allows the object to update it's state.
Private Types
enum	PushButtonState { OFF, ON }
Private Attributes
std::string	script
PushButtonState	state

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Detailed Description

PushButton - jump on it to run a script.

Definition at line 25 of file pushbutton.hpp.

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Member Enumeration Documentation

enum PushButton::PushButtonState [private]

Enumerator:

OFF
ON

Definition at line 34 of file pushbutton.hpp.

                       {
    OFF,
    ON
  };

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Constructor & Destructor Documentation

PushButton::PushButton

(

const Reader &

reader

)

Definition at line 33 of file pushbutton.cpp.

References MovingObject::bbox, BUTTON_SOUND, lisp::Lisp::get(), SoundManager::preload(), script, MovingSprite::set_action(), Rectf::set_size(), sound_manager, and MovingSprite::sprite.

                                         :
  MovingSprite(lisp, "images/objects/pushbutton/pushbutton.sprite", LAYER_BACKGROUNDTILES+1, COLGROUP_MOVING), 
  script(),
  state(OFF)
{
  sound_manager->preload(BUTTON_SOUND);
  set_action("off", -1);
  bbox.set_size(sprite->get_current_hitbox_width(), sprite->get_current_hitbox_height());

  if (!lisp.get("script", script)) throw std::runtime_error("no script set");
}

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Member Function Documentation

HitResponse PushButton::collision	(	GameObject &	other,
		const CollisionHit &	hit
	)			[virtual]

this function is called when the object collided with any other object

Implements MovingObject.

Definition at line 51 of file pushbutton.cpp.

References MovingObject::bbox, BUTTON_SOUND, Sector::current(), FORCE_MOVE, Rectf::get_height(), Player::get_physic(), MovingObject::get_pos(), Physic::get_velocity_y(), OFF, ON, SoundManager::play(), Sector::run_script(), script, MovingSprite::set_action(), MovingObject::set_pos(), Physic::set_velocity_y(), sound_manager, state, and CollisionHit::top.

{
  Player* player = dynamic_cast<Player*>(&other);
  if (!player) return FORCE_MOVE;
  float vy = player->get_physic().get_velocity_y();

  //player->add_velocity(Vector(0, -150));
  player->get_physic().set_velocity_y(-150);

  if (state != OFF) return FORCE_MOVE;
  if (!hit.top) return FORCE_MOVE;
  if (vy <= 0) return FORCE_MOVE;

  // change appearance
  state = ON;
  float old_bbox_height = bbox.get_height();
  set_action("on", -1);
  float new_bbox_height = bbox.get_height();
  set_pos(get_pos() + Vector(0, old_bbox_height - new_bbox_height));

  // play sound
  sound_manager->play(BUTTON_SOUND);

  // run script
  std::istringstream stream(script);
  Sector::current()->run_script(stream, "PushButton");

  return FORCE_MOVE;
}

void PushButton::update

(

float

elapsed_time

)

[virtual]

This function is called once per frame and allows the object to update it's state.

The elapsed_time is the time since the last frame in seconds and should be the base for all timed calculations (don't use SDL_GetTicks directly as this will fail in pause mode)

Reimplemented from MovingSprite.

Definition at line 46 of file pushbutton.cpp.

{
}

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Member Data Documentation

std::string PushButton::script [private]

Definition at line 39 of file pushbutton.hpp.

Referenced by collision(), and PushButton().

PushButtonState PushButton::state [private]

Definition at line 40 of file pushbutton.hpp.

Referenced by collision().

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The documentation for this class was generated from the following files:

• src/object/pushbutton.hpp
• src/object/pushbutton.cpp

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