FloatingText Class Reference

#include <floating_text.hpp>

Inherits GameObject.

List of all members.

Public Member Functions
	FloatingText (const Vector &pos, const std::string &text_)
	FloatingText (const Vector &pos, int s)
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 Attributes
Vector	position
std::string	text
Timer	timer
Static Private Attributes
static Color	text_color

---

Detailed Description

Definition at line 29 of file floating_text.hpp.

---

Constructor & Destructor Documentation

FloatingText::FloatingText	(	const Vector &	pos,
		const std::string &	text_
	)

Definition at line 24 of file floating_text.cpp.

References position, Timer::start(), text, timer, and Vector::x.

                                                                    :
  position(pos), 
  text(text_),
  timer()
{
  timer.start(.1f);
  position.x -= text.size() * 8;
}

FloatingText::FloatingText	(	const Vector &	pos,
		int	s
	)

Definition at line 33 of file floating_text.cpp.

References position, Timer::start(), text, timer, and Vector::x.

                                                       :
  position(pos),
  text(),
  timer()
{
  timer.start(.1f);

  // turn int into a string
  char str[10];
  snprintf(str, 10, "%d", score);
  text = str;

  position.x -= text.size() * 8;
}

---

Member Function Documentation

void FloatingText::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)

Implements GameObject.

Definition at line 49 of file floating_text.cpp.

References Timer::check(), position, GameObject::remove_me(), timer, and Vector::y.

{
  position.y -= 1.4 * elapsed_time;

  if(timer.check())
    remove_me();
}

void FloatingText::draw

(

DrawingContext &

context

)

[virtual]

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

Implements GameObject.

Definition at line 60 of file floating_text.cpp.

References ALIGN_LEFT, DrawingContext::draw_text(), FADING_TIME, Timer::get_timeleft(), LAYER_OBJECTS, Resources::normal_font, DrawingContext::pop_transform(), position, DrawingContext::push_transform(), DrawingContext::set_alpha(), text, text_color, and timer.

{
  // make an alpha animation when disappearing
  int alpha;
  if(timer.get_timeleft() < FADING_TIME)
    alpha = int(timer.get_timeleft() * 255 / FADING_TIME);
  else
    alpha = 255;

  context.push_transform();
  context.set_alpha(alpha);

  context.draw_text(Resources::normal_font, text, position, ALIGN_LEFT, LAYER_OBJECTS+1, FloatingText::text_color);

  context.pop_transform();
}

---

Member Data Documentation

Color FloatingText::text_color [static, private]

Definition at line 31 of file floating_text.hpp.

Referenced by draw().

Vector FloatingText::position [private]

Definition at line 40 of file floating_text.hpp.

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

std::string FloatingText::text [private]

Definition at line 41 of file floating_text.hpp.

Referenced by draw(), and FloatingText().

Timer FloatingText::timer [private]

Definition at line 42 of file floating_text.hpp.

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

---

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

• src/object/floating_text.hpp
• src/object/floating_text.cpp
• src/supertux/colorscheme.cpp

---