C# Class ProtoTurtle.BitmapDrawing.BitmapDrawingExtensions

A extension class for UnityEngine.Texture2D that provides a bitmap drawing API. Provides drawing methods line Line, Circle, Rectangle etc. This class uses a convention of having the 0,0 point at the left-top corner!

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Datei anzeigen Open project: abagames/pongpector

Public Methods

Method	Description
DrawCircle ( this texture, int x, int y, int radius, Color color ) : void	Draws a circle with the midpoint being x0, x1. Implementation of Bresenham's circle algorithm
DrawFilledCircle ( this texture, int x, int y, int radius, Color color ) : void	Draws a filled circle with the midpoint being x0, x1. Implementation of Bresenham's circle algorithm
DrawFilledRectangle ( this texture, Rect rectangle, Color color ) : void	Fills the given rectangle area with a solid color.
DrawLine ( this texture, Vector2 start, Vector2 end, Color color ) : void
DrawLine ( this texture, Vector3 start, Vector3 end, Color color ) : void
DrawLine ( this texture, int x0, int y0, int x1, int y1, Color color ) : void	Draws a line between two points. Implementation of Bresenham's line algorithm.
DrawPixel ( this texture, int x, int y, Color color ) : void	Draws a pixel just like SetPixel except 0,0 is the left top corner.
DrawPixel ( this texture, int x, int y, int width, int height, Color color ) : void	Draws a pixel just like SetPixel except 0,0 is the left top corner. Takes the width and height as parameters - faster for calling this in a loop.
DrawRectangle ( this texture, Rect rectangle, Color color ) : void	Draws a rectangle
FloodFill ( this texture, int startX, int startY, Color newColor ) : void	Starts a flood fill at point startX, startY. This is a pretty slow flood fill, biggest bottle neck is comparing two colors which happens a lot. Should be a way to make it much faster. O(n) space. n = width*height - makes a copy of the bitmap temporarily in the memory

Private Methods

Method	Description
Circle ( Texture2D texture, int x, int y, int radius, Color color, bool filled = false ) : void
Line ( Texture2D texture, int x0, int y0, int x1, int y1, Color color ) : void
PlotCircle ( Texture2D texture, int cx, int x, int cy, int y, Color color ) : void
ScanLineCircle ( Texture2D texture, int cx, int x, int cy, int y, Color color ) : void
Swap ( int &x, int &y ) : void	Swap two ints by reference.
TransformToLeftTop_y ( float y, int height ) : int	Transforms a point in the texture plane so that 0,0 points at left-top corner.
TransformToLeftTop_y ( int y, int height ) : int	Transforms a point in the texture plane so that 0,0 points at left-top corner.

Method Details

DrawCircle() public static method

Draws a circle with the midpoint being x0, x1. Implementation of Bresenham's circle algorithm

public static DrawCircle ( this texture, int x, int y, int radius, Color color ) : void
texture	this
x	int
y	int
radius	int
color	Color
return	void

DrawFilledCircle() public static method

Draws a filled circle with the midpoint being x0, x1. Implementation of Bresenham's circle algorithm

public static DrawFilledCircle ( this texture, int x, int y, int radius, Color color ) : void
texture	this
x	int
y	int
radius	int
color	Color
return	void

DrawFilledRectangle() public static method

Fills the given rectangle area with a solid color.

public static DrawFilledRectangle ( this texture, Rect rectangle, Color color ) : void
texture	this
rectangle	UnityEngine.Rect
color	Color
return	void

DrawLine() public static method

public static DrawLine ( this texture, Vector2 start, Vector2 end, Color color ) : void
texture	this
start	Vector2
end	Vector2
color	Color
return	void

DrawLine() public static method

public static DrawLine ( this texture, Vector3 start, Vector3 end, Color color ) : void
texture	this
start	Vector3
end	Vector3
color	Color
return	void

DrawLine() public static method

Draws a line between two points. Implementation of Bresenham's line algorithm.

public static DrawLine ( this texture, int x0, int y0, int x1, int y1, Color color ) : void
texture	this
x0	int	x of the start point
y0	int	y of the start point
x1	int	x of the end point
y1	int	y of the end point
color	Color
return	void

DrawPixel() public static method

Draws a pixel just like SetPixel except 0,0 is the left top corner.

public static DrawPixel ( this texture, int x, int y, Color color ) : void
texture	this
x	int
y	int
color	Color
return	void

DrawPixel() public static method

Draws a pixel just like SetPixel except 0,0 is the left top corner. Takes the width and height as parameters - faster for calling this in a loop.

public static DrawPixel ( this texture, int x, int y, int width, int height, Color color ) : void
texture	this
x	int
y	int
width	int	Width of the target bitmap
height	int	Height of the target bitmap
color	Color
return	void

DrawRectangle() public static method

Draws a rectangle

public static DrawRectangle ( this texture, Rect rectangle, Color color ) : void
texture	this
rectangle	UnityEngine.Rect
color	Color
return	void

FloodFill() public static method

Starts a flood fill at point startX, startY. This is a pretty slow flood fill, biggest bottle neck is comparing two colors which happens a lot. Should be a way to make it much faster. O(n) space. n = width*height - makes a copy of the bitmap temporarily in the memory

public static FloodFill ( this texture, int startX, int startY, Color newColor ) : void
texture	this
startX	int
startY	int
newColor	Color
return	void