SpriteParticle Class Reference

#include <sprite_particle.hpp>

Inherits GameObject.

List of all members.

Public Member Functions
	SpriteParticle (std::string sprite_name, std::string action, Vector position, AnchorPoint anchor, Vector velocity, Vector acceleration, int drawing_layer=LAYER_OBJECTS-1)
	~SpriteParticle ()
Protected Member Functions
virtual void	hit (Player &player)
virtual void	update (float elapsed_time)
	This function is called once per frame and allows the object to update it's state.
virtual void	draw (DrawingContext &context)
	The GameObject should draw itself onto the provided DrawingContext if this function is called.
Private Member Functions
	SpriteParticle (const SpriteParticle &)
SpriteParticle &	operator= (const SpriteParticle &)
Private Attributes
SpritePtr	sprite
Vector	position
Vector	velocity
Vector	acceleration
int	drawing_layer

---

Detailed Description

Definition at line 27 of file sprite_particle.hpp.

---

Constructor & Destructor Documentation

SpriteParticle::SpriteParticle	(	std::string	sprite_name,
		std::string	action,
		Vector	position,
		AnchorPoint	anchor,
		Vector	velocity,
		Vector	acceleration,
		int	drawing_layer = LAYER_OBJECTS-1
	)

Definition at line 25 of file sprite_particle.cpp.

References SpriteManager::create(), get_anchor_pos(), position, sprite, and sprite_manager.

                                                  :
  sprite(),
  position(position), 
  velocity(velocity), 
  acceleration(acceleration), 
  drawing_layer(drawing_layer)
{
  sprite = sprite_manager->create(sprite_name);
  if (!sprite.get()) throw std::runtime_error("Could not load sprite "+sprite_name);
  sprite->set_action(action, 1);
  sprite->set_animation_loops(1); //TODO: this is necessary because set_action will not set "loops" when "action" is the default action

  this->position -= get_anchor_pos(sprite->get_current_hitbox(), anchor);
}

SpriteParticle::~SpriteParticle

(

)

Definition at line 42 of file sprite_particle.cpp.

References GameObject::remove_me().

{
  remove_me();
}

SpriteParticle::SpriteParticle

(

const SpriteParticle &

)

[private]

---

Member Function Documentation

void SpriteParticle::hit

(

Player &

player

)

[protected, virtual]

Definition at line 48 of file sprite_particle.cpp.

{
}

void SpriteParticle::update

(

float

elapsed_time

)

[protected, 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)

Implements GameObject.

Definition at line 53 of file sprite_particle.cpp.

References acceleration, Sector::camera, scripting::camera(), Sector::current(), Camera::get_translation(), position, GameObject::remove_me(), SCREEN_HEIGHT, SCREEN_WIDTH, sprite, velocity, Vector::x, and Vector::y.

{
  // die when animation is complete
  if (sprite->animation_done()) {
    remove_me();
    return;
  }

  // calculate new position and velocity
  position.x += velocity.x * elapsed_time;
  position.y += velocity.y * elapsed_time;
  velocity.x += acceleration.x * elapsed_time;
  velocity.y += acceleration.y * elapsed_time;

  // die when too far offscreen
  Vector camera = Sector::current()->camera->get_translation();
  if ((position.x < camera.x - 128) || (position.x > SCREEN_WIDTH + camera.x + 128) ||
      (position.y < camera.y - 128) || (position.y > SCREEN_HEIGHT + camera.y + 128)) {
    remove_me();
    return;
  }
}

void SpriteParticle::draw

(

DrawingContext &

context

)

[protected, virtual]

The GameObject should draw itself onto the provided DrawingContext if this function is called.

Implements GameObject.

Definition at line 77 of file sprite_particle.cpp.

References drawing_layer, position, and sprite.

{
  sprite->draw(context, position, drawing_layer);
}

SpriteParticle& SpriteParticle::operator=

(

const SpriteParticle &

)

[private]

---

Member Data Documentation

SpritePtr SpriteParticle::sprite [private]

Definition at line 38 of file sprite_particle.hpp.

Referenced by draw(), SpriteParticle(), and update().

Vector SpriteParticle::position [private]

Definition at line 39 of file sprite_particle.hpp.

Referenced by draw(), SpriteParticle(), and update().

Vector SpriteParticle::velocity [private]

Definition at line 40 of file sprite_particle.hpp.

Referenced by update().

Vector SpriteParticle::acceleration [private]

Definition at line 41 of file sprite_particle.hpp.

Referenced by update().

int SpriteParticle::drawing_layer [private]

Definition at line 42 of file sprite_particle.hpp.

Referenced by draw().

---

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

• src/object/sprite_particle.hpp
• src/object/sprite_particle.cpp

---