How do I convert degrees to radians for accurate sprite rotation in Godot engine calculations?

Converting Degrees to Radians in Godot

When working with sprite rotation in Godot, accurate angle conversions are crucial. Godot typically uses radians for most of its rotational computations. To rotate a sprite precisely, you need to understand how to convert angles from degrees to radians.

Conversion Formula

The standard formula to convert degrees to radians is:
radians = degrees * (π / 180)

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Godot’s Built-in Functionality

Godot provides a built-in method to simplify this conversion process:
func _ready():
  var angle_degrees = 90
  var angle_radians = deg2rad(angle_degrees)
  print('Radians:', angle_radians)
The deg2rad() function takes a degree value and returns the equivalent in radians.

Applying Rotation to a Sprite

To apply this conversion when rotating a sprite, use the following approach:
sprite.rotation = deg2rad(desired_rotation_in_degrees)
This line directly sets the sprite’s rotation property using the radian value.

Benefits of Using Radians

• Consistency in trigonometric functions.
• Compatibility with physics calculations in Godot.
• Standardized approach across different game engines.