ScreenPanel to be drawn on the screen to give the player information. More...

#include <InfoPanel.h>

Inheritance diagram for InfoPanel:

Public Member Functions
	InfoPanel (ALLEGRO_BITMAP back, ALLEGRO_BITMAP front, int x, int y, int width, int height)
	Creates an InfoPanel from the given back and front buffers.
	~InfoPanel ()
	Destructor that ensured that the font created is destroyed.
virtual void	draw (const Maze &maze, const list< PlayerCar > &players, const list< EnemyCar > &enemies, const list< Checkpoint > &checkpoints, const list< Rock > &rocks, const list< Smokescreen > &smokescreens, const list< DestroyedObjectPopup > &popups)
	Draws the InfoPanel using the given objects.
Private Member Functions
	InfoPanel (const InfoPanel &ref)
	Copy constructor not implemented, ScreenPanels should not be copied.
InfoPanel &	operator= (const InfoPanel &rhs)
	Assignment operator not implemented, ScreenPanels should not be copied.
float	getPanelX (const double &x) const
	Converts an x game coordinate value to its equivalent in pixels.
float	getPanelY (const double &y) const
	Converts a y game coordinate value to its equivalent in pixels.
void	draw (const Maze &maze)
	Draws a Maze on the panel.
void	draw (const GameObject &object)
	Draws a single GameObject on the panel.
Private Attributes
AllegroDrawingInit	_drawing
	Handles dependencies on Allegro's primitive drawing functions.
ColourStore	_colourStore
	Caches colours for drawing.
float	_petrolHeadingY
	The y coordinate of the heading for the petrol guage.
float	_petrolGuageY
	The y coordinate of top of the petrol guage.
float	_petrolGuageHeight
	The height of the rectangle that is the petrol guage.
float	_checkpointHeadingY
	The y coordinate of the heading for the number of remaining checkpoints.
float	_checkpointValueY
	The y coordinate of the text stating the number of remaining checkpoints.
float	_miniMazeY
	The y coordinate of the top of the Maze.
float	_miniMazeHeight
	The height of the Maze.
float	_miniMazeblockWidth
	The width of each Maze block being drawn.
ALLEGRO_FONT *	_panelFont
	The font being used to write the headings and number of checkpoints remaining.

Detailed Description

ScreenPanel to be drawn on the screen to give the player information.

This includes the minimap, a scaled down version of the entire maze that does not scroll, with icons to represent the PlayerCar, EnemyCars, and Checkpoints. Text is drawn to show the player the number of Checkpoints that needed to be collected for victory, and a rectangle is drawn representing the amount of petrol that the PlayerCar has left.

Author:: Justin Wernick; David Schneider

Definition at line 30 of file InfoPanel.h.

Constructor & Destructor Documentation

InfoPanel::InfoPanel	(	ALLEGRO_BITMAP *	back,
		ALLEGRO_BITMAP *	front,
		int	x,
		int	y,
		int	width,
		int	height
	)

Creates an InfoPanel from the given back and front buffers.

The sub-bitmaps that InfoPanel uses are created from a rectangular region on back and front that has its top left corner at the coordinate x,y, is width long in the x direction, and height long in the y direction.

Parameters:

[in]	back	The current back buffer of the display being sub-bitmapped.
[in]	front	The current front buffer (image currently being displayed) of the display being sub-bitmapped.
[in]	x	The x coordinate of the left side of the sub-bitmap in pixels.
[in]	y	The x coordinate of the top of the sub-bitmap in pixels.
[in]	width	The length in the x direction of the new sub-bitmap in pixels.
[in]	height	The length in the y direction of the new sub-bitmap in pixels.

Definition at line 3 of file InfoPanel.cpp.

InfoPanel::~InfoPanel ( )

Destructor that ensured that the font created is destroyed.

The memory for the sub-bitmaps are handled by the parent class, ScreenPanel.

Definition at line 22 of file InfoPanel.cpp.

InfoPanel::InfoPanel ( const InfoPanel & ref ) [private]

Copy constructor not implemented, ScreenPanels should not be copied.

Member Function Documentation

void InfoPanel::draw	(	const Maze &	maze,
		const list< PlayerCar > &	players,
		const list< EnemyCar > &	enemies,
		const list< Checkpoint > &	checkpoints,
		const list< Rock > &	rocks,
		const list< Smokescreen > &	smokescreens,
		const list< DestroyedObjectPopup > &	popups
	)		`[virtual]`

Draws the InfoPanel using the given objects.

Not all of the provided objects are needed for the drawing process, but they are included to give the most general drawing case. This is to support polymorphism, where the InfoPanel can be told to draw its sub-bitmap in the same manner as any other ScreenPanel.

The scale of the minimap is determined at the beginning of each frame, so that it will always fit even if the maze is larger than on the last frame.

Parameters:

[in]	maze	The Maze that all of the objects are in.
[in]	players	The list of PlayerCars to be drawn.
[in]	enemies	The list of EnemyCars to be drawn.
[in]	checkpoints	The list of Checkpoints to be drawn.
[in]	rocks	Rocks are not actually drawn.
[in]	smokescreens	Smokescreens are not actually drawn.
[in]	popups	DestroyedObjectPopups are not actually drawn.

Implements ScreenPanel.

Definition at line 27 of file InfoPanel.cpp.

void InfoPanel::draw ( const Maze & maze ) [private]

Draws a Maze on the panel.

The Maze is constructed of coloured squares. The colour of the squares is retrieved from the ColourStore.

Unlike in the GamePanel, the entire Maze is drawn.

Parameters:

[in] maze The Maze to be drawn.

Definition at line 71 of file InfoPanel.cpp.

void InfoPanel::draw ( const GameObject & object ) [private]

Draws a single GameObject on the panel.

The GameObject is represented by a coloured circle in the Maze. The colour is based on the GameObject's image and is retrieved from the ColourStore.

Parameters:

[in] object The GameObject to be drawn.

Definition at line 96 of file InfoPanel.cpp.

float InfoPanel::getPanelX ( const double & x ) const [private]

Converts an x game coordinate value to its equivalent in pixels.

Converting to the pixel coordinates happens for every object every frame. To increase performance, the parameters are passed in by constant reference instead of by value.

Parameters:

[in] x The game coordinate to be converted into pixels.

Definition at line 104 of file InfoPanel.cpp.

float InfoPanel::getPanelY ( const double & y ) const [private]

Converts a y game coordinate value to its equivalent in pixels.

Converting to the pixel coordinates happens for every object every frame. To increase performance, the parameters are passed in by constant reference instead of by value.

Parameters:

[in] y The game coordinate to be converted into pixels.

Definition at line 108 of file InfoPanel.cpp.

InfoPanel& InfoPanel::operator= ( const InfoPanel & rhs ) [private]

Assignment operator not implemented, ScreenPanels should not be copied.