Turret 2D movement

A turret movement with customizable speed, acceleration and stop angles.

Authors and contributors to this experimental extension: D8H.

With this behavior, you can make an object rotate like a turret toward a 2D position. It may be used with the Bullet extension to fire objects.

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Turret movement

A turret movement with customizable speed, acceleration and stop angles.

Behavior properties

Acceleration (🔢 Number, Acceleration). Default value is 1440.
Maximum angle (use the same value for min and max to set no constraint) (🔢 Number, Angle). Default value is 0.
Minimum angle (use the same value for min and max to set no constraint) (🔢 Number, Angle). Default value is 0.
Deceleration (🔢 Number, Acceleration). Default value is 36000.
Rotate the object (🔘 Boolean). Default value is true.
Maximum rotation speed (in degrees per second) (🔢 Number, Speed). Default value is 360.

See internal technical details

Acceleration is stored as Acceleration (Number). Unit is PixelAcceleration. Default value is 1440.
Maximum angle (use the same value for min and max to set no constraint) is stored as AngleMax (Number). Unit is DegreeAngle. Default value is 0.
Minimum angle (use the same value for min and max to set no constraint) is stored as AngleMin (Number). Unit is DegreeAngle. Default value is 0.
Deceleration is stored as Deceleration (Number). Unit is PixelAcceleration. Default value is 36000.
Rotate the object is stored as Rotate (Boolean). Default value is true.
Maximum rotation speed (in degrees per second) is stored as SpeedMax (Number). Unit is PixelSpeed. Default value is 360.

Behavior actions

Move clockwise
Move clockwise.

See parameters & details

Parameter 0: 👾 Object
Parameter 1: 🧩 Behavior

Technical note: parameter 2 is an internal parameter handled by GDevelop.

Technical note: this action internal type (in GDevelop JSON) is Turret::Turret::MoveClockwise.

Move counter-clockwise
Move counter-clockwise.

See parameters & details

Parameter 0: 👾 Object
Parameter 1: 🧩 Behavior

Technical note: parameter 2 is an internal parameter handled by GDevelop.

Technical note: this action internal type (in GDevelop JSON) is Turret::Turret::MoveCounterClockwise.

Move toward a position
Move toward a position.

See parameters & details

Parameter 0: 👾 Object
Parameter 1: 🧩 Behavior
Parameter 2 (🔢 Number): X position
Parameter 3 (🔢 Number): Y position
Parameter 4 (🔢 Number): Angle margin

Technical note: parameter 5 is an internal parameter handled by GDevelop.

Technical note: this action internal type (in GDevelop JSON) is Turret::Turret::MoveToward.

Aiming angle
Change the aiming angle.

See parameters & details

Parameter 0: 👾 Object
Parameter 1: 🧩 Behavior
Parameter 2 (🔢 Number): Aiming angle

Technical note: parameter 3 is an internal parameter handled by GDevelop.

Technical note: this action internal type (in GDevelop JSON) is Turret::Turret::SetAimingAngle.

Set aiming angle toward a position
Set angle toward a position.

See parameters & details

Parameter 0: 👾 Object
Parameter 1: 🧩 Behavior
Parameter 2 (🔢 Number): X position
Parameter 3 (🔢 Number): Y position

Technical note: parameter 4 is an internal parameter handled by GDevelop.

Technical note: this action internal type (in GDevelop JSON) is Turret::Turret::SetAimingAngleToward.

Behavior conditions

Is moving
Check if the turret is moving.

See parameters & details

Parameter 0: 👾 Object
Parameter 1: 🧩 Behavior

Technical note: parameter 2 is an internal parameter handled by GDevelop.

Technical note: this condition internal type (in GDevelop JSON) is Turret::Turret::IsMoving.

Behavior expressions

Expression	Description
`Object.Turret::AimingAngle()`	Aiming angle (between 0° and 360° if no stop angle are set).

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