float

A built-in type for floating-point numbers.

Description

The float built-in type is a 64-bit double-precision floating-point number, equivalent to double in C++. This type has 14 reliable decimal digits of precision. The maximum value of float is approximately 1.79769e308, and the minimum is approximately -1.79769e308.

Many methods and properties in the engine use 32-bit single-precision floating-point numbers instead, equivalent to float 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 precision=double option.

Math done using the float type is not guaranteed to be exact and will often result in small errors. You should usually use the @GlobalScope.is_equal_approx and @GlobalScope.is_zero_approx methods instead of == to compare float values for equality.

Tutorials

• Wikipedia: Double-precision floating-point format

• Wikipedia: Single-precision floating-point format

Constructors

Operators

Constructor Descriptions

float float() 🔗

Constructs a default-initialized float set to 0.0.

float float(from: float)

Constructs a float as a copy of the given float.

float float(from: String)

Converts a String to a float, following the same rules as String.to_float.

float float(from: bool)

Cast a bool value to a floating-point value, float(true) will be equal to 1.0 and float(false) will be equal to 0.0.

float float(from: int)

Cast an int value to a floating-point value, float(1) will be equal to 1.0.

Operator Descriptions

bool operator !=(right: float) 🔗

Returns true if two floats are different from each other.

Note: @GDScript.NAN doesn’t behave the same as other numbers. Therefore, the results from this operator may not be accurate if NaNs are included.

bool operator !=(right: int) 🔗

Returns true if the integer has different value than the float.

Color operator *(right: Color) 🔗

Multiplies each component of the Color, including the alpha, by the given float.

print(1.5 * Color(0.5, 0.5, 0.5)) # Prints "(0.75, 0.75, 0.75, 1.5)"

Quaternion operator *(right: Quaternion) 🔗

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.

Vector2 operator *(right: Vector2) 🔗

Multiplies each component of the Vector2 by the given float.

print(2.5 * Vector2(1, 3)) # Prints "(2.5, 7.5)"

Vector2 operator *(right: Vector2i) 🔗

Multiplies each component of the Vector2i by the given float. Returns a Vector2.

print(0.9 * Vector2i(10, 15)) # Prints "(9, 13.5)"

Vector3 operator *(right: Vector3) 🔗

Multiplies each component of the Vector3 by the given float.

Vector3 operator *(right: Vector3i) 🔗

Multiplies each component of the Vector3i by the given float. Returns a Vector3.

print(0.9 * Vector3i(10, 15, 20)) # Prints "(9, 13.5, 18)"

Vector4 operator *(right: Vector4) 🔗

Multiplies each component of the Vector4 by the given float.

Vector4 operator *(right: Vector4i) 🔗

Multiplies each component of the Vector4i by the given float. Returns a Vector4.

print(0.9 * Vector4i(10, 15, 20, -10)) # Prints "(9, 13.5, 18, -9)"

float operator *(right: float) 🔗

Multiplies two floats.

float operator *(right: int) 🔗

Multiplies a float and an int. The result is a float.

float operator **(right: float) 🔗

Raises a float to a power of a float.

print(39.0625**0.25) # 2.5

float operator **(right: int) 🔗

Raises a float to a power of an int. The result is a float.

print(0.9**3) # 0.729

float operator +(right: float) 🔗

Adds two floats.

float operator +(right: int) 🔗

Adds a float and an int. The result is a float.

float operator -(right: float) 🔗

Subtracts a float from a float.

float operator -(right: int) 🔗

Subtracts an int from a float. The result is a float.

float operator /(right: float) 🔗

Divides two floats.

float operator /(right: int) 🔗

Divides a float by an int. The result is a float.

bool operator <(right: float) 🔗

Returns true if the left float is less than the right one.

Note: @GDScript.NAN doesn’t behave the same as other numbers. Therefore, the results from this operator may not be accurate if NaNs are included.

bool operator <(right: int) 🔗

Returns true if this float is less than the given int.

bool operator <=(right: float) 🔗

Returns true if the left float is less than or equal to the right one.

Note: @GDScript.NAN doesn’t behave the same as other numbers. Therefore, the results from this operator may not be accurate if NaNs are included.

bool operator <=(right: int) 🔗

Returns true if this float is less than or equal to the given int.

bool operator ==(right: float) 🔗

Returns true if both floats are exactly equal.

Note: Due to floating-point precision errors, consider using @GlobalScope.is_equal_approx or @GlobalScope.is_zero_approx instead, which are more reliable.

Note: @GDScript.NAN doesn’t behave the same as other numbers. Therefore, the results from this operator may not be accurate if NaNs are included.

bool operator ==(right: int) 🔗

Returns true if the float and the given int are equal.

bool operator >(right: float) 🔗

Returns true if the left float is greater than the right one.

Note: @GDScript.NAN doesn’t behave the same as other numbers. Therefore, the results from this operator may not be accurate if NaNs are included.

bool operator >(right: int) 🔗

Returns true if this float is greater than the given int.

bool operator >=(right: float) 🔗

Returns true if the left float is greater than or equal to the right one.

Note: @GDScript.NAN doesn’t behave the same as other numbers. Therefore, the results from this operator may not be accurate if NaNs are included.

bool operator >=(right: int) 🔗

Returns true if this float is greater than or equal to the given int.

float operator unary+() 🔗

Returns the same value as if the + was not there. Unary + does nothing, but sometimes it can make your code more readable.

float operator unary-() 🔗

Returns the negative value of the float. If positive, turns the number negative. If negative, turns the number positive. With floats, the number zero can be either positive or negative.

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