Primitives
Integer
An integer is a whole number that can be positive, negative, or zero, but does not include fractions or decimals.
When you define a number value without a decimal point, such as 3 or -1, it is automatically of the integer type.
Float
A floating-point number is a way to represent numbers that can have decimals.
When you define a number value with a decimal point, such as 3.14 or 0.001, it is automatically of the float type.
Floating-point values can also be written in scientific notation, for example 1.1e10.
Complex Number
A complex number is a type of number that includes a real part and an imaginary part.
They can be defined in the format a+bi, for example 3+4i or -3-4i.
Boolean
A boolean is a data type that can have one of two possible values: true or false.
They can be used to check if a condition is met and then return different values based on that condition.
Hexadecimal
Hexadecimal is a base-16 number system that uses sixteen distinct symbols to represent values. The symbols include the digits 0 to 9, which represent values zero to nine, and the letters A to F, which represent values ten to fifteen.
In Xylo, they are primarily used for RGB color values. All hexadecimal values must be defined with either six digits or three digits.
The syntax is 0xRRGGBB or 0xRGB, for example 0xffddbb or the shorthand 0xfdb, which equivocates to the same value.
Shape
Triangle
Triangles can be rendered with the TRIANGLE constant.
By default, they are 2 pixels long on each side.
The following Unicode characters are also accepted:
▲
△
▴
▵
Square
Squares can be rendered with the SQUARE constant.
By default, they have a width and height of 2 pixels.
The following Unicode characters are also accepted:
⬜
⬛
■
□
▪
▫
Circle
Circles can be rendered with the CIRCLE constant.
By default, they have a radius of 1 pixel.
The following Unicode characters are also accepted:
⬤
◯
●
○
🞄
Fill
Canvas fills can be rendered with the FILL constant.
They will always fill the entire image with their assigned color.
Empty
Empty shapes can be rendered with the EMPTY constant.
These are skipped in the rendering process and can essentially be used as a null value.
Path
Paths are a collection of points that form a polygon.
Composite
Composite shapes are two shapes combined together.
Collection
Collection shapes are a list of shapes combined together.
Gradient
Gradients are configurable transitions between colors that can be applied to shape fills.
List
A list is a sequence of values that must be of the same type.
The syntax is [a, b, c, ...]. For example, a list of integers can be defined as [1, 2, 3, 4, 5] or a list of shapes can be defined as [SQUARE, CIRCLE, TRIANGLE].
Blend Mode
A blend mode defines how two shapes interact when combined. It controls the color blending of the top shape with the shapes below, enabling the creation of various visual effects.
Shapes can be assigned the following blend modes:
Clear:
BLEND_CLEARSource Over:
BLEND_SOURCE_OVERDestination Over:
BLEND_DESTINATION_OVERSource In:
BLEND_SOURCE_INDestination In:
BLEND_DESTINATION_INSource Out:
BLEND_SOURCE_OUTDestination Out:
BLEND_DESTINATION_OUTSource Atop:
BLEND_SOURCE_ATOPDestination Atop:
BLEND_DESTINATION_ATOPSource:
BLEND_SOURCEDestination:
BLEND_DESTINATIONXor:
BLEND_XORPlus:
BLEND_PLUSModulate:
BLEND_MODULATEScreen:
BLEND_SCREENOverlay:
BLEND_OVERLAYDarken:
BLEND_DARKENLighten:
BLEND_LIGHTENColor Dodge:
BLEND_COLOR_DODGEColor Burn:
BLEND_COLOR_BURNHard Light:
BLEND_HARD_LIGHTSoft Light:
BLEND_SOFT_LIGHTDifference:
BLEND_DIFFERENCEExclusion:
BLEND_EXCLUSIONMultiply:
BLEND_MULTIPLYHue:
BLEND_HUESaturation:
BLEND_SATURATIONColor:
BLEND_COLORLuminosity:
BLEND_LUMINOSITY
Line Cap
A line cap determines the style of the stroke's endpoints on a shape.
Shapes can be assigned the following line caps:
Butt:
LINE_CAP_BUTTRound:
LINE_CAP_ROUNDSquare:
LINE_CAP_SQUARE
Line Join
A line join specifies the style of the corners where two stroke segments meet on a shape.
Shapes can be assigned the following line joins:
Miter:
LINE_JOIN_MITERMiter Clip:
LINE_JOIN_MITER_CLIPRound:
LINE_JOIN_ROUNDBevel:
LINE_JOIN_BEVEL
Spread Mode
A spread mode defines how gradients loop their colors.
Gradients can be assigned the following spread modes:
Pad:
SPREAD_MODE_PADReflect:
SPREAD_MODE_REFLECTRepeat:
SPREAD_MODE_REPEAT
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