Module `sprite`

Sprite related variables and functions.

Functions

beginFill (color)	Starts a solid fill with the given ARGB values.
beginGradientFill (colors, ratios, vars)	Starts a gradient fill with the given ARGB values and ratios.
endFill ()	Ends the current gradient fill and applies any pending draw operations to the sprite.
lineStyle (color, thickness, vars)	Specifies a line style used for subsequent draw operations, such as lineTo and drawCircle.
moveTo (x, y)	Sets the current drawing position used by lineTo, curveTo, and cubicCurveTo to the given coordinates.
lineTo (x, y)	Draws a line (using the current line style) from the current drawing position to the given end position, and sets the drawing position to the end position.
curveTo (controlX, controlY, anchorX, anchorY)	Draws a quadratic Bezier curve (using the current line style) from the current drawing position to the given end position, and sets the drawing position to the end position.
cubicCurveTo (controlX1, controlY1, controlX2, controlY2, anchorX, anchorY)	Draws a cubic Bezier curve (using the current line style) from the current drawing position to the given end position, and sets the drawing position to the end position.
drawCircle (x, y, radius)	Draws a circle using the current fill and line style.
drawEllipse (x, y, width, height)	Draws an ellipse using the current fill and line style.
drawRect (x, y, width, height)	Draws a rectangle using the current fill and line style.
drawRoundRect (x, y, width, height, ellipseWidth, ellipseHeight)	Draws a rounded rectangle using the current fill and line style.
addText (text, x, y, color, size, vars)	Adds a new text field into the sprite's child list.
addChild (child, index)	Adds a sprite or stamp to the sprite's child list.
removeChild (child)	Removes a sprite or stamp from the sprite's child list.
clone (recursive)	Creates a copy of the sprite with identical contents.
destroy ()	Destroys the sprite, making it unable to be drawn to, parented to, or rendered from.
clear ()	Clears the sprite, emptying its contents without destroying the sprite.

Fields

alpha	The alpha of the sprite, represented by a number in the range of 0 - 1.
blendMode	The blend mode of the sprite.
numChildren	The number of children the sprite has.
destroyed	Whether or not the sprite was destroyed.

Functions

beginFill (color)

Starts a solid fill with the given ARGB values. Subsequent draw operations will rely on this fill until the fill is ended. You must call endFill() to ensure all draw operations take effect.

Parameters:

color int The ARGB value of the fill. By default 0xFFFFFFFF. The simplest way to provide this value is with the 0xAARRGGBB hex format, where AA is the hex value from 0 - 255 for the alpha, RR for red, GG for green, and BB for blue.

Usage:

someSprite.beginFill(0xFF0000FF) -- Draw everything with a solid, fully opaque blue.
someSprite.drawEllipse(0, 0, 100, 200)
someSprite.endFill()
someLayer.drawSprite(someSprite)

beginGradientFill (colors, ratios, vars)

Starts a gradient fill with the given ARGB values and ratios. Subsequent draw operations will rely on this fill until the fill is ended. You must call endFill() to ensure all draw operations take effect.

To fully understand the parameters detailed below, please refer to Adobe's gradient fill and gradient box documentations:

https://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/display/Graphics.html#beginGradientFill()

https://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/geom/Matrix.html#createGradientBox()

Parameters:

colors An AS3 array of the ARGB values of the fill. The simplest way to provide these values is with the 0xAARRGGBB hex format, where AA is the hex value from 0 - 255 for the alpha, RR for red, GG for green, and BB for blue.
ratios An AS3 array of the color distribution ratios; valid values are 0-255. These values define the percentages of the width where the respective color is sampled at 100%. The value 0 represents the left position in the gradient box, and 255 represents the right position in the gradient box. Each value must be greater than the last.
vars
An AS3 object containing any optional parameters for the gradient fill. Valid options are:
- type (string) The type of gradient fill. Can be either "linear" or "radial". By default "linear".
- width (number) The width of the gradient box. By default 127.
- height (number) The height of the gradient box. By default 127.
- x (number) The distance, in pixels, to translate the gradient box values to the right along the x-axis. This value is offset by half of the width parameter. By default 0.
- y (number) The distance, in pixels, to translate the gradient box values down along the y-axis. This value is offset by half of the height parameter. By default 0.
- rotation (number) The amount to rotate the gradient box values, in degrees.
- focalPointRatio (number) A multiplier that controls the location of the focal point of the gradient. 0 means that the focal point is in the center. 1 means that the focal point is at one border of the gradient circle. -1 means that the focal point is at the other border of the gradient circle. A value less than -1 or greater than 1 is clamped to -1 or 1
- spreadMethod (string) Which spread method to use. Can be either "pad", "reflect", or "repeat". By default "pad".
- interpolationMethod (string) Which color space interpolation method to use. Can be either "rgb" or "linearRGB". By default "rgb".

Usage:

local colors = toarray{0xFF0000FF, 0xFFFFFFFF} -- The gradient will be blue on the left and white on the right
local ratios = toarray{0.3 * 255, 1 * 255} -- The gradient will be fully blue up to 30% of the way through the fill, then transition from blue to white across the remaining 70%
someSprite.beginGradientFill(colors, ratios, toobject{width = 100, height = 200}) -- The width and height of the gradient box will now match that of our next draw call.
someSprite.drawRect(0, 0, 100, 200)
someSprite.endFill()
someLayer.drawSprite(someSprite)

endFill ()

Ends the current gradient fill and applies any pending draw operations to the sprite.

lineStyle (color, thickness, vars)

Specifies a line style used for subsequent draw operations, such as lineTo and drawCircle.

To fully understand the parameters detailed below, please refer to Adobe's line style documentation:

https://airsdk.dev/reference/actionscript/3.0/flash/display/Graphics.html#lineStyle()

Parameters:

color int The ARGB value of the line style. By default 0xFFFFFFFF. The simplest way to provide this value is with the 0xAARRGGBB hex format, where AA is the hex value from 0 - 255 for the alpha, RR for red, GG for green, and BB for blue.
thickness int The thickness, in pixels, of the line style.
vars
An AS3 object containing any optional parameters for the line style. Valid options are:
- pixelHinting (bool) Whether or not draw operations should be hinted to full pixels. This works to reduce the blurriness of anti-aliasing by keeping line widths and curves aligned closer to exact pixel amounts.
- scaleMode (string) The scale mode of the line style. By default "normal". Valid options are:
  - normal Always scale the line thickness when the sprite is scaled.
  - none Never scale the line thickness.
  - vertical Do not scale the line thickness if the sprite is scaled only vertically and not horizontally.
  - horizontal Do not scale the line thickness if the sprite is scaled only horizontally and not vertically.
- caps (string) The type of caps at the end of lines drawn with this line style. By default "round". Valid options are:
  - round Draw round caps at the end of lines.
  - square Draw square caps at the end of lines.
  - none Do not draw caps at the end of lines.
- joints (string) The type of joint appearance at the angles formed by lines drawn with this line style. By default "round". Valid options are:
  - round Draw round joints at the angles formed by lines.
  - bevel Draw beveled joints at the angles formed by lines.
  - miter Draw mitered joints at the angles formed by lines. The length of these miters is limited by the miterLimit parameter.
- miterLimit (int) The maximum length, in pixels, of mitered joints used for the angles formed by lines drawn with this line style. By default 3. This value is clamped between 1 and 255.

Usage:

someSprite.lineStyle(0xFFFF0000, 5) -- Draw a solid red line with a thickness of 5 pixels
someSprite.lineTo(000, 100) -- Draw the line from (0, 0) to (0, 100)
someSprite.lineStyle(0xFF000000, 1) -- Draw a solid black line with a thickness of 1 pixel
someSprite.lineTo(000, 000) -- Draw the line from (0, 100) to (0, 0)

moveTo (x, y)

Sets the current drawing position used by lineTo, curveTo, and cubicCurveTo to the given coordinates.

Parameters:

x number The x-coordinate of the new drawing position.
y number The y-coordinate of the new drawing position.

Usage:

someSprite.lineTo(000, 100) -- Draw a line from (0, 0) to (0, 100)
someSprite.moveTo(000, 000) -- Move back to (0, 0); otherwise, the next line's starting point would be (0, 100) instead of (0, 0)
someSprite.lineTo(100, 000) -- Draw the line from (0, 0) to (100, 0)

lineTo (x, y)

Draws a line (using the current line style) from the current drawing position to the given end position, and sets the drawing position to the end position.

Parameters:

x number The x-coordinate of the end position for the line to be drawn to.
y number The y-coordinate of the end position for the line to be drawn to.

Usage:

someSprite.lineTo(000, 100) -- Draw a line from (0, 0) to (0, 100)
someSprite.lineTo(100, 000) -- Draw the line from (0, 100) to (100, 0)

curveTo (controlX, controlY, anchorX, anchorY)

Draws a quadratic Bezier curve (using the current line style) from the current drawing position to the given end position, and sets the drawing position to the end position.

Parameters:

controlX number The x-coordinate of the control point, which determines the shape of the curvature.
controlY number The y-coordinate of the control point, which determines the shape of the curvature.
anchorX number The x-coordinate of the end position for the curve to be drawn to.
anchorY number The y-coordinate of the end position for the curve to be drawn to.

Usage:

someSprite.curveTo(-50, 50, -100, 0) -- Draw a curve from (0, 0) to (-100, 0), using a control point (-50, 50) to create a rightward curvature

cubicCurveTo (controlX1, controlY1, controlX2, controlY2, anchorX, anchorY)

Draws a cubic Bezier curve (using the current line style) from the current drawing position to the given end position, and sets the drawing position to the end position.

Parameters:

controlX1 number The x-coordinate of the first control point. The control points determine the shape of the curvature.
controlY1 number The y-coordinate of the first control point. The control points determine the shape of the curvature.
controlX2 number The x-coordinate of the second control point. The control points determine the shape of the curvature.
controlY2 number The y-coordinate of the second control point. The control points determine the shape of the curvature.
anchorX number The x-coordinate of the end position for the curve to be drawn to.
anchorY number The y-coordinate of the end position for the curve to be drawn to.

Usage:

someSprite.cubicCurveTo(-50, 50, -100, -50, -150, 0) -- Draw a curve from (0, 0) to (-150, 0), using the control points (-50, 50) and (-100, -50) to create an S-like curve

drawCircle (x, y, radius)

Draws a circle using the current fill and line style.

Parameters:

x number The x-coordinate of the circle's center point.
y number The y-coordinate of the circle's center point.
radius number The radius, in pixels, of the circle.

Parameters:

x number The x-coordinate of the ellipse's center point.
y number The y-coordinate of the ellipse's center point.
width number The width, in pixels, of the ellipse.
height number The height, in pixels, of the ellipse.

Parameters:

x number The x-coordinate of the rectangle's top left point.
y number The y-coordinate of the rectangle's top left point.
width number The width, in pixels, of the rectangle.
height number The height, in pixels, of the rectangle.

Parameters:

x number The x-coordinate of the rectangle's top left point.
y number The y-coordinate of the rectangle's top left point.
width number The width, in pixels, of the rectangle.
height number The height, in pixels, of the rectangle.
ellipseWidth number The width, in pixels, of the ellipse used to draw the rounded corners.
ellipseHeight number The height, in pixels, of the ellipse used to draw the rounded corners. If none is provided, ellipseWidth is used.

Parameters:

text string The text to be drawn by the text field.
x number The x-coordinate of the text field's top left point. By default 0.
y number The y-coordinate of the text field's top left point. By default 0.
color int The ARGB value of the text field. By default 0xFFFFFFFF. The simplest way to provide this value is with the 0xAARRGGBB hex format, where AA is the hex value from 0 - 255 for the alpha, RR for red, GG for green, and BB for blue.
size int The size, in pixels, of the text field. By default 14.
vars
An AS3 object containing any optional parameters for the gradient fill. Valid options are:
- align (string) The alignment of the text field. By default "left". Valid options are:
  - left Aligns the text to the left edge of the text field.
  - right Aligns the text to the right edge of the text field.
  - center Centers the text within the text field.
  - justify Justifies the text within the text field. The spacing between words is adjusted line-by-line to ensure each line is the same length.
  - start Aligns the text to the starting edge of the text field, as determined by the text language. Usually the same as "left".
  - end Aligns the text to the ending edge of the text field, as determined by the text language. Usually the same as "right".
- bold (bool) Whether or not the text should be emboldened. By default false.
- italic (bool) Whether or not the text should be italicized. By default false.
- underline (bool) Whether or not the text should be underlined. By default false.
- rotation (number) The amount to rotate the text field, in degrees. By default 0.
- width (number) The width of the text field. If none is provided, it will be calculated based on the text contents.
- height (number) The height of the text field. If none is provided, it will be calculated based on the text contents.
- wordWrap (bool) Whether or not the text should be word wrapped within the text field's size. By default false.

Usage:

someSprite.addText(string.rep("Hello, world! ", 30), 0, 0, 0xFFFFAA00, 14, toobject{bold = true, wordWrap = true, width = 150}) -- Creates orange text at (0, 0), word-wrapping with a width of 150 pixels.

addChild (child, index)

Adds a sprite or stamp to the sprite's child list. Anytime the sprite is rendered, its children will also be rendered with the same transformations.

Parameters:

child sprite/stamp The sprite or stamp to be parented.
index int The index position to add the child into. By default the end of the list.

removeChild (child)

Removes a sprite or stamp from the sprite's child list.

Parameters:

child sprite/stamp The child sprite or stamp to be removed.

clone (recursive)

Creates a copy of the sprite with identical contents.

Parameters:

recursive boolean Whether or not the contents of the sprite's children are copied to the clone.

Returns:

sprite

destroy ()

Destroys the sprite, making it unable to be drawn to, parented to, or rendered from.

clear ()

Clears the sprite, emptying its contents without destroying the sprite.

Fields

alpha

The alpha of the sprite, represented by a number in the range of 0 - 1. An alpha of 0 means the sprite is completely transparent; 1 means fully visible. By default 1.

blendMode

The blend mode of the sprite. By default "normal". Valid blend modes are defined here: https://airsdk.dev/reference/actionscript/3.0/flash/display/BlendMode.html

numChildren

The number of children the sprite has. By default 0. Read-only.

PR3R Lua

Contents

Modules

Module sprite

Functions

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Module `sprite`