diff options
Diffstat (limited to 'doc/classes/float.xml')
| -rw-r--r-- | doc/classes/float.xml | 96 |
1 files changed, 58 insertions, 38 deletions
diff --git a/doc/classes/float.xml b/doc/classes/float.xml index a7c6533ef5..755ce1200d 100644 --- a/doc/classes/float.xml +++ b/doc/classes/float.xml @@ -5,7 +5,7 @@ </brief_description> <description> The [float] built-in type is a 64-bit double-precision floating-point number, equivalent to [code]double[/code] in C++. This type has 14 reliable decimal digits of precision. The [float] type can be stored in [Variant], which is the generic type used by the engine. The maximum value of [float] is approximately [code]1.79769e308[/code], and the minimum is approximately [code]-1.79769e308[/code]. - Many methods and properties in the engine use 32-bit single-precision floating-point numbers instead, equivalent to [code]float[/code] in C++, which have 6 reliable decimal digits of precision. For data structures such as [Vector2] and [Vector3], Godot uses 32-bit floating-point numbers by default, but it can be changed to use 64-bit doubles if Godot is compiled with the [code]float=64[/code] option. + Many methods and properties in the engine use 32-bit single-precision floating-point numbers instead, equivalent to [code]float[/code] in C++, which have 6 reliable decimal digits of precision. For data structures such as [Vector2] and [Vector3], Godot uses 32-bit floating-point numbers by default, but it can be changed to use 64-bit doubles if Godot is compiled with the [code]precision=double[/code] option. Math done using the [float] type is not guaranteed to be exact or deterministic, and will often result in small errors. You should usually use the [method @GlobalScope.is_equal_approx] and [method @GlobalScope.is_zero_approx] methods instead of [code]==[/code] to compare [float] values for equality. </description> <tutorials> @@ -21,21 +21,28 @@ </constructor> <constructor name="float"> <return type="float" /> - <argument index="0" name="from" type="float" /> + <param index="0" name="from" type="float" /> <description> Constructs a [float] as a copy of the given [float]. </description> </constructor> <constructor name="float"> <return type="float" /> - <argument index="0" name="from" type="bool" /> + <param index="0" name="from" type="String" /> + <description> + Converts a [String] to a [float], following the same rules as [method String.to_float]. + </description> + </constructor> + <constructor name="float"> + <return type="float" /> + <param index="0" name="from" type="bool" /> <description> Cast a [bool] value to a floating-point value, [code]float(true)[/code] will be equal to 1.0 and [code]float(false)[/code] will be equal to 0.0. </description> </constructor> <constructor name="float"> <return type="float" /> - <argument index="0" name="from" type="int" /> + <param index="0" name="from" type="int" /> <description> Cast an [int] value to a floating-point value, [code]float(1)[/code] will be equal to [code]1.0[/code]. </description> @@ -44,21 +51,21 @@ <operators> <operator name="operator !="> <return type="bool" /> - <argument index="0" name="right" type="float" /> + <param index="0" name="right" type="float" /> <description> Returns [code]true[/code] if two floats are different from each other. </description> </operator> <operator name="operator !="> <return type="bool" /> - <argument index="0" name="right" type="int" /> + <param index="0" name="right" type="int" /> <description> Returns [code]true[/code] if the integer has different value than the float. </description> </operator> <operator name="operator *"> <return type="Color" /> - <argument index="0" name="right" type="Color" /> + <param index="0" name="right" type="Color" /> <description> Multiplies each component of the [Color] by the given [float]. [codeblock] @@ -68,14 +75,14 @@ </operator> <operator name="operator *"> <return type="Quaternion" /> - <argument index="0" name="right" type="Quaternion" /> + <param index="0" name="right" type="Quaternion" /> <description> Multiplies each component of the [Quaternion] by the given [float]. This operation is not meaningful on its own, but it can be used as a part of a larger expression. </description> </operator> <operator name="operator *"> <return type="Vector2" /> - <argument index="0" name="right" type="Vector2" /> + <param index="0" name="right" type="Vector2" /> <description> Multiplies each component of the [Vector2] by the given [float]. [codeblock] @@ -85,7 +92,7 @@ </operator> <operator name="operator *"> <return type="Vector2" /> - <argument index="0" name="right" type="Vector2i" /> + <param index="0" name="right" type="Vector2i" /> <description> Multiplies each component of the [Vector2i] by the given [float]. Returns a [Vector2]. [codeblock] @@ -95,14 +102,14 @@ </operator> <operator name="operator *"> <return type="Vector3" /> - <argument index="0" name="right" type="Vector3" /> + <param index="0" name="right" type="Vector3" /> <description> Multiplies each component of the [Vector3] by the given [float]. </description> </operator> <operator name="operator *"> <return type="Vector3" /> - <argument index="0" name="right" type="Vector3i" /> + <param index="0" name="right" type="Vector3i" /> <description> Multiplies each component of the [Vector3i] by the given [float]. Returns a [Vector3]. [codeblock] @@ -112,115 +119,128 @@ </operator> <operator name="operator *"> <return type="Vector4" /> - <argument index="0" name="right" type="Vector4" /> + <param index="0" name="right" type="Vector4" /> <description> + Multiplies each component of the [Vector4] by the given [float]. </description> </operator> <operator name="operator *"> <return type="Vector4" /> - <argument index="0" name="right" type="Vector4i" /> + <param index="0" name="right" type="Vector4i" /> <description> + Multiplies each component of the [Vector4i] by the given [float]. Returns a [Vector4]. + [codeblock] + print(0.9 * Vector4i(10, 15, 20, -10)) # Prints "(9, 13.5, 18, -9)" + [/codeblock] </description> </operator> <operator name="operator *"> <return type="float" /> - <argument index="0" name="right" type="float" /> + <param index="0" name="right" type="float" /> <description> Multiplies two [float]s. </description> </operator> <operator name="operator *"> <return type="float" /> - <argument index="0" name="right" type="int" /> + <param index="0" name="right" type="int" /> <description> Multiplies a [float] and an [int]. The result is a [float]. </description> </operator> <operator name="operator **"> <return type="float" /> - <argument index="0" name="right" type="float" /> + <param index="0" name="right" type="float" /> <description> + Raises a [float] to a power of a [float]. + [codeblock] + print(39.0625**0.25) # 2.5 + [/codeblock] </description> </operator> <operator name="operator **"> <return type="float" /> - <argument index="0" name="right" type="int" /> + <param index="0" name="right" type="int" /> <description> + Raises a [float] to a power of an [int]. The result is a [float]. + [codeblock] + print(0.9**3) # 0.729 + [/codeblock] </description> </operator> <operator name="operator +"> <return type="float" /> - <argument index="0" name="right" type="float" /> + <param index="0" name="right" type="float" /> <description> Adds two floats. </description> </operator> <operator name="operator +"> <return type="float" /> - <argument index="0" name="right" type="int" /> + <param index="0" name="right" type="int" /> <description> Adds a [float] and an [int]. The result is a [float]. </description> </operator> <operator name="operator -"> <return type="float" /> - <argument index="0" name="right" type="float" /> + <param index="0" name="right" type="float" /> <description> Subtracts a float from a float. </description> </operator> <operator name="operator -"> <return type="float" /> - <argument index="0" name="right" type="int" /> + <param index="0" name="right" type="int" /> <description> Subtracts an [int] from a [float]. The result is a [float]. </description> </operator> <operator name="operator /"> <return type="float" /> - <argument index="0" name="right" type="float" /> + <param index="0" name="right" type="float" /> <description> Divides two floats. </description> </operator> <operator name="operator /"> <return type="float" /> - <argument index="0" name="right" type="int" /> + <param index="0" name="right" type="int" /> <description> Divides a [float] by an [int]. The result is a [float]. </description> </operator> <operator name="operator <"> <return type="bool" /> - <argument index="0" name="right" type="float" /> + <param index="0" name="right" type="float" /> <description> - Returns [code]true[/code] the left float is less than the right one. + Returns [code]true[/code] if the left float is less than the right one. </description> </operator> <operator name="operator <"> <return type="bool" /> - <argument index="0" name="right" type="int" /> + <param index="0" name="right" type="int" /> <description> Returns [code]true[/code] if this [float] is less than the given [int]. </description> </operator> <operator name="operator <="> <return type="bool" /> - <argument index="0" name="right" type="float" /> + <param index="0" name="right" type="float" /> <description> - Returns [code]true[/code] the left integer is less than or equal to the right one. + Returns [code]true[/code] if the left float is less than or equal to the right one. </description> </operator> <operator name="operator <="> <return type="bool" /> - <argument index="0" name="right" type="int" /> + <param index="0" name="right" type="int" /> <description> Returns [code]true[/code] if this [float] is less than or equal to the given [int]. </description> </operator> <operator name="operator =="> <return type="bool" /> - <argument index="0" name="right" type="float" /> + <param index="0" name="right" type="float" /> <description> Returns [code]true[/code] if both floats are exactly equal. [b]Note:[/b] Due to floating-point precision errors, consider using [method @GlobalScope.is_equal_approx] or [method @GlobalScope.is_zero_approx] instead, which are more reliable. @@ -228,35 +248,35 @@ </operator> <operator name="operator =="> <return type="bool" /> - <argument index="0" name="right" type="int" /> + <param index="0" name="right" type="int" /> <description> Returns [code]true[/code] if the [float] and the given [int] are equal. </description> </operator> <operator name="operator >"> <return type="bool" /> - <argument index="0" name="right" type="float" /> + <param index="0" name="right" type="float" /> <description> - Returns [code]true[/code] the left float is greater than the right one. + Returns [code]true[/code] if the left float is greater than the right one. </description> </operator> <operator name="operator >"> <return type="bool" /> - <argument index="0" name="right" type="int" /> + <param index="0" name="right" type="int" /> <description> Returns [code]true[/code] if this [float] is greater than the given [int]. </description> </operator> <operator name="operator >="> <return type="bool" /> - <argument index="0" name="right" type="float" /> + <param index="0" name="right" type="float" /> <description> - Returns [code]true[/code] the left float is greater than or equal to the right one. + Returns [code]true[/code] if the left float is greater than or equal to the right one. </description> </operator> <operator name="operator >="> <return type="bool" /> - <argument index="0" name="right" type="int" /> + <param index="0" name="right" type="int" /> <description> Returns [code]true[/code] if this [float] is greater than or equal to the given [int]. </description> |