LevelTime Class Reference

#include <level_time.hpp>

Inherits GameObject, and ScriptInterface.

List of all members.

Public Member Functions
	LevelTime (const Reader &reader)
virtual void	expose (HSQUIRRELVM vm, SQInteger table_idx)
virtual void	unexpose (HSQUIRRELVM vm, SQInteger table_idx)
void	update (float elapsed_time)
	This function is called once per frame and allows the object to update it's state.
void	draw (DrawingContext &context)
	The GameObject should draw itself onto the provided DrawingContext if this function is called.
Scriptable Methods
void	start ()
	Resumes the countdown.
void	stop ()
	Pauses the countdown.
float	get_time ()
	Returns the number of seconds left on the clock.
void	set_time (float time_left)
	Changes the number of seconds left on the clock.
Private Attributes
SurfacePtr	time_surface
bool	running
float	time_left
Static Private Attributes
static Color	text_color

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Detailed Description

Definition at line 28 of file level_time.hpp.

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Constructor & Destructor Documentation

LevelTime::LevelTime

(

const Reader &

reader

)

Definition at line 34 of file level_time.cpp.

References Surface::create(), lisp::Lisp::get(), GameObject::name, time_left, and time_surface.

                                         :
  time_surface(),
  running(true), 
  time_left(0)
{
  reader.get("name", name);
  reader.get("time", time_left);
  if(time_left <= 0) throw std::runtime_error("No or invalid leveltime specified");
  time_surface = Surface::create("images/engine/hud/time-0.png");
}

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Member Function Documentation

void LevelTime::expose	(	HSQUIRRELVM	vm,
		SQInteger	table_idx
	)			[virtual]

Implements ScriptInterface.

Definition at line 46 of file level_time.cpp.

References scripting::expose_object(), and GameObject::name.

{
  if (name.empty()) return;
  scripting::LevelTime* _this = new scripting::LevelTime(this);
  expose_object(vm, table_idx, _this, name, true);
}

void LevelTime::unexpose	(	HSQUIRRELVM	vm,
		SQInteger	table_idx
	)			[virtual]

Implements ScriptInterface.

Definition at line 54 of file level_time.cpp.

References GameObject::name, and scripting::unexpose_object().

{
  if (name.empty()) return;
  scripting::unexpose_object(vm, table_idx, name);
}

void LevelTime::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 61 of file level_time.cpp.

References Player::add_coins(), Sector::current(), Player::kill(), Sector::player, running, stop(), and time_left.

{
  if (!running) return;

  int prev_time = (int) floor(time_left*5);
  time_left -= elapsed_time;
  if(time_left <= 0) {
    if(time_left <= -5 || !Sector::current()->player->get_coins())
    {
      Sector::current()->player->kill(true);
      stop();
    }
    if(prev_time != (int) floor(time_left*5))
    {
      Sector::current()->player->add_coins(-1);
    }
  }
}

void LevelTime::draw

(

DrawingContext &

context

)

[virtual]

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

Implements GameObject.

Definition at line 81 of file level_time.cpp.

References ALIGN_LEFT, BORDER_Y, DrawingContext::draw_surface(), DrawingContext::draw_text(), game_time, LAYER_FOREGROUND1, Resources::normal_font, DrawingContext::pop_transform(), DrawingContext::push_transform(), SCREEN_WIDTH, DrawingContext::set_translation(), text_color, time_left, time_surface, and TIME_WARNING.

{
  context.push_transform();
  context.set_translation(Vector(0, 0));

  if ((time_left > TIME_WARNING) || (int(game_time * 2.5) % 2)) {
    std::stringstream ss;
    ss << int(time_left);
    std::string time_text = ss.str();

    if (time_surface)
    {
      float all_width = time_surface->get_width() + Resources::normal_font->get_text_width(time_text);
      context.draw_surface(time_surface, Vector((SCREEN_WIDTH - all_width)/2, BORDER_Y + 1), LAYER_FOREGROUND1);
      context.draw_text(Resources::normal_font, time_text, 
                        Vector((SCREEN_WIDTH - all_width)/2 + time_surface->get_width(), BORDER_Y), 
                        ALIGN_LEFT, LAYER_FOREGROUND1, LevelTime::text_color);
    }
  }

  context.pop_transform();
}

void LevelTime::start

(

)

Resumes the countdown.

Definition at line 105 of file level_time.cpp.

References running.

Referenced by scripting::LevelTime::start().

{
  running = true;
}

void LevelTime::stop

(

)

Pauses the countdown.

Definition at line 111 of file level_time.cpp.

References running.

Referenced by GameSession::start_sequence(), scripting::LevelTime::stop(), and update().

{
  running = false;
}

float LevelTime::get_time

(

)

Returns the number of seconds left on the clock.

Definition at line 117 of file level_time.cpp.

References time_left.

Referenced by scripting::LevelTime::get_time().

{
  return time_left;
}

void LevelTime::set_time

(

float

time_left

)

Changes the number of seconds left on the clock.

Definition at line 123 of file level_time.cpp.

Referenced by scripting::LevelTime::set_time().

{
  this->time_left = std::min(std::max(time_left, 0.0f), 999.0f);
}

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Member Data Documentation

Color LevelTime::text_color [static, private]

Definition at line 31 of file level_time.hpp.

Referenced by draw().

SurfacePtr LevelTime::time_surface [private]

Definition at line 71 of file level_time.hpp.

Referenced by draw(), and LevelTime().

bool LevelTime::running [private]

Definition at line 72 of file level_time.hpp.

Referenced by start(), stop(), and update().

float LevelTime::time_left [private]

Definition at line 73 of file level_time.hpp.

Referenced by draw(), get_time(), LevelTime(), and update().

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

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

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