CS代考计算机代写 #ifndef __airbrush__h__

#ifndef __airbrush__h__
#define __airbrush__h__

#include “image.h”
#include

namespace graphics101
{
enum AirBrushShape {
Constant = 0,
Linear,
Quadratic,
Special,
NumAirBrushShapes
};
std::string StringFromAirBrushShape( AirBrushShape type );
AirBrushShape AirBrushShapeFromString( const std::string& str );

struct Rect {
int x = -1;
int y = -1;
int width = 0;
int height = 0;

Rect( int x_, int y_, int width_, int height_ ) : x( x_ ), y( y_ ), width( width_ ), height( height_ ) {}
};

/*
* Given:
* an AirBrushShape `shape`
* a non-zero `radius`
* an RGBA `color`
* saves an RGBA airbrush image with dimensions (1+2*radius)-by-(1+2*radius)
* into output parameter `airbrush_image_out`.
*/
void create_airbrush( Image& airbrush_image_out, AirBrushShape shape, int radius, ColorRGBA8 color );
/*
* Given:
* `image_to_modify` (input/output parameter): an Image to paint into
* `airbrush_image`: an Image with an RGBA airbrush image (guaranteed to be square and have odd dimensions).
* `center_x`, `center_y`: an integer x,y position in the image.
* Modifies `image_to_modify` by spraying the airbrush into it.
* Returns:
* Rect: the rectangle in the image that was modified.
*/
Rect paint_at( Image& image_to_modify,
const Image& airbrush_image,
int center_x,
int center_y
);
};

#endif /* __airbrush__h__ */