Shape Class Reference

An abstract base class that represents a Shape which has an area, perimeter, color, and can contain Vector2s. More...

#include <shape.h>

Inheritance diagram for Shape:

Collaboration diagram for Shape:

Public Member Functions
	Shape ()
	Constructs a new Shape with a default color and center. More...
	Shape (const Vector2 &center, const cs225::HSLAPixel &color)
	Constructs a new Shape with the given center and color. More...
virtual int	area () const =0
	Computes and returns the area of the Shape in pixels. More...
int	area () const
virtual int	perimeter () const =0
	Computes and returns the perimeter of the Shape in pixels. More...
int	perimeter () const
virtual bool	contains (const Vector2 &p) const =0
	Checks to see if the Vector2 p is contained inside of the Shape. More...
bool	contains (const Vector2 &p) const
Vector2	center () const
	Gets the center Vector2 of the Shape. More...
virtual void	set_center (const Vector2 &center)
	Sets the center Vector2 of the Shape. More...
cs225::HSLAPixel	color () const
	Gets the color of the Shape. More...
void	draw (cs225::PNG *canvas) const
	This method will draw the object onto the canvas. More...

Protected Attributes
Vector2	center_

Detailed Description

An abstract base class that represents a Shape which has an area, perimeter, color, and can contain Vector2s.

Shapes are also drawable, so they are expected to know how to draw themselves to a PNG.

Constructor & Destructor Documentation

Shape() [1/2]

Shape::Shape

(

)

Constructs a new Shape with a default color and center.

Shape() [2/2]

Shape::Shape	(	const Vector2 &	center,
		const cs225::HSLAPixel &	color
	)

Constructs a new Shape with the given center and color.

Parameters

center	Vector2 of the new Shape
color	of the new Shape

Member Function Documentation

area()

int Shape::area ( ) const

pure virtual

Computes and returns the area of the Shape in pixels.

Returns

the area (in pixels) of the Shape

Implemented in Triangle, Rectangle, and Circle.

center()

Vector2 Shape::center

(

)

const

Gets the center Vector2 of the Shape.

Returns

the center Vector2 of the Shape

color()

HSLAPixel Shape::color

(

)

const

Gets the color of the Shape.

Returns

the HSLAPixel representing the color of the Shape

contains()

bool Shape::contains ( const Vector2 &  p ) const

pure virtual

Checks to see if the Vector2 p is contained inside of the Shape.

Parameters

p	Vector2 to check if it is contained inside the Shape or not

Returns

true if Vector2 p is inside of the Shape

Implemented in Triangle, Rectangle, and Circle.

draw()

void Shape::draw ( cs225::PNG *  canvas ) const

virtual

This method will draw the object onto the canvas.

Parameters

canvas

to draw onto.

Implements Drawable.

Reimplemented in Triangle.

perimeter()

int Shape::perimeter ( ) const

pure virtual

Computes and returns the perimeter of the Shape in pixels.

Returns

the perimeter (in pixels) of the Shape

Implemented in Triangle, Rectangle, and Circle.

set_center()

void Shape::set_center ( const Vector2 &  center )

virtual

Sets the center Vector2 of the Shape.

Parameters

center

the new center Vector2 of the Shape

Reimplemented in Triangle.

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

• base/src/shape.h
• base/src/shape.cpp