TransparentSprite Class Reference
[Toolkit classes]

A Sprite with transparency capability. More...

#include <transparentsprite.h>

Inherits Graphic.

Inherited by LogicRobot.

Collaboration diagram for TransparentSprite:

[legend]

List of all members.

Public Member Functions
	TransparentSprite ()
	Creates a null TransparentSprite.
	TransparentSprite (int type, int alpha)
	Creates a sprite and places it offscreen.
	TransparentSprite (int type, Point location, int alpha)
	TransparentSprite (int type, int x, int y, int alpha)
	~TransparentSprite ()
void	draw (BITMAP *canvas, Point offset)
	Draws this object's bitmap, with transparency set to alpha.
void	setAlpha (int alpha)
int	getAlpha ()
Protected Attributes
BITMAP *	sprite
	The image this object will display.
int	type
	A code, specified by an enum, that describes what kind of TransparentSprite this is.
int	alpha
	The transparency of this object. Must be in [0,255].

---

Detailed Description

A Sprite with transparency capability.

This class is very similar to its shorter-named sibling. It simply adds an alpha variable, which ranges from 0 (transparent) to 255 (opaque). The latter is also known as OPAQUE.

There is no noticable difference between a Sprite and a TransparentSprite which has alpha = 255.

---

Constructor & Destructor Documentation

TransparentSprite::TransparentSprite

(

)

Creates a null TransparentSprite.

TransparentSprite::TransparentSprite	(	int	type,
		int	alpha
	)

Creates a sprite and places it offscreen.

TransparentSprite::TransparentSprite	(	int	type,
		Point	location,
		int	alpha
	)

TransparentSprite::TransparentSprite	(	int	type,
		int	x,
		int	y,
		int	alpha
	)

TransparentSprite::~TransparentSprite

(

)

---

Member Function Documentation

void TransparentSprite::draw	(	BITMAP *	canvas,
		Point	offset
	)			[virtual]

Draws this object's bitmap, with transparency set to alpha.

Implements Graphic.

int TransparentSprite::getAlpha

(

)

void TransparentSprite::setAlpha

(

int

alpha

)

---

Member Data Documentation

int TransparentSprite::alpha [protected]

The transparency of this object. Must be in [0,255].

BITMAP* TransparentSprite::sprite [protected]

The image this object will display.

int TransparentSprite::type [protected]

A code, specified by an enum, that describes what kind of TransparentSprite this is.

---

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

• Comps/LearningGaming/Toolkit/transparentsprite.h
• Comps/LearningGaming/Toolkit/transparentsprite.cpp