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Coordinate System:
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Vector rotations
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Rotate 90º clockwise:
new_vector = Vector2(y, -x). -
Rotate 90º counterclockwise:
new_vector = Vector2(-y, x).
Mathematical manipulations
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Returns a number multiple of the given 'steps', rounding to the nearest:
float snappedf(x : float, step : float) -
Rounds a float to the nearest x:
float roundf(x : float) -
Checks if float is approximately zero:
bool is_zero_approx(x : float) -
Checks if float is approximately equal to something:
bool is_equal_approx(a : float, b : float) -
Counts the number of decimal places:
int step_decimals(x : float) -
Clamp variable ranges:
vel.x = clamp(vel.x, -VEL_MAX, VEL_MAX)
Node3D: Rotations
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(Rotates the "local transform") (?), around an axis defined in 'local coordinates':
rotate_object_local(_axis, _ang_rad) -
(Rotates the "local transform") (?), around an axis defined in 'parent coordinates (sometimes coinciding with global)':
rotate(_axis, _ang_rad)
rotate_x(_ang_rad)
rotate_y(_ang_rad)
rotate_z(_ang_rad) -
(Rotates the "global transform") (?), around an axis defined in 'global coordinates':
global_rotate(_axis, _ang_rad)
Node3D Transform
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Build an identity transform, with vectors in default direction centered at the origin.
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var trans = Transform()
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Build a transform based on identity, with vectors in default direction.
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var base = Basis() -
or
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trans.basis = Basis()
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Orthogonalize and normalize the Transform, ensuring axes are 90º apart and normalized, giving a scale of -1 or 1.
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trans = trans.orthonormalized()
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Rotate in global space:
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trans = trans.rotated(_axis, _ang_rad)
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Rotate in local/self space:
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trans = trans.rotated_local(_axis, _ang_rad)
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Translate in global space:
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trans = trans.translated(_offset)
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Translate in local/self space:
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trans = trans.translated_local(_offset)
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Node2D Rotations and Translations
rotation += (PI/16 + get_rotation()) * delta
translate(Vector2(0, G/2))