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Hedgehog platformer

Jump and run on platforms at 360°.

Authors and contributors to this experimental extension: Kennoir, UnknownUney, D8H.

Warning

This is an extension made by a community member and it only got through a light review by the GDevelop extension team. As such, we can't guarantee it meets all the quality standards of fully reviewed extensions.

A platformer engine for Sonic-like games.

A small demo shows how to use this extension (open the project online).

Tip

Learn how to install new extensions by following a step-by-step guide.

Conditions

Character is on given platform
Check if a platformer character is on a given platform.

See parameters & details
  • Parameter 1 (👾 Object): Character
  • Parameter 2 (🧩 Behavior): Hedgehog platformer character
  • Parameter 3 (👾 Object): Platform
  • Parameter 4 (🧩 Behavior): Hedgehog platform

Technical note: parameters 0, 5 are internal parameters handled by GDevelop.

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::IsCharacterOnPlatform.

Character is pushing platform
Check if a platformer character is pushing against a platform.

See parameters & details
  • Parameter 1 (👾 Object): Character
  • Parameter 2 (🧩 Behavior): Hedgehog platformer character
  • Parameter 3 (👾 Object): Platform
  • Parameter 4 (🧩 Behavior): Hedgehog platform

Technical note: parameters 0, 5 are internal parameters handled by GDevelop.

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::IsCharacterPushingPlatform.

Hedgehog platformer character

Jump and run on platforms at 360°.

Behavior properties

  • Air acceleration (🔢 Number, Acceleration). Default value is 1012.
  • Air drag (🔢 Number, Dimensionless). The air drag reduce the speed on X axis. Default value is 0.
  • Air drag min speed Y (🔢 Number, Speed). Default value is -720.
  • Ceil bounce factor (-1 to 1) (🔢 Number). 0: set the vertical speed to 0, 1: keep the speed, -1: bounce. Default value is 0.
  • Deceleration (🔢 Number, Acceleration). When changing of direction on the ground. Default value is 5400.
  • Downwards slope factor (🔢 Number, Acceleration). Speed gain when moving downwards. Default value is 1350.
  • Rotation speed when falling (🔢 Number, Angular speed). Default value is 168.75.
  • Max floor magnet distance (in character height per seconds) (🔢 Number). At high speeds. Default value is 13.
  • Min floor magnet distance (in character height per seconds) (🔢 Number). At low speeds. Default value is 3.
  • Friction (🔢 Number, Acceleration). When there is no input. Default value is 506.25.
  • Gravity (🔢 Number, Acceleration). Default value is 2362.5.
  • Ground acceleration (🔢 Number, Acceleration). Default value is 506.25.
  • Default controls (🔘 Boolean). Default value is true.
  • Jump height reducer (0 to 1) (🔢 Number). Vertical speed is multiplied by this value when the jump key is released during a jump. Default value is 0.615.
  • Jump speed (🔢 Number, Speed). Default value is 1170.
  • Max falling speed (🔢 Number, Speed). Default value is 2880.
  • Max speed (🔢 Number, Speed). The maximum speed obtained with input. Default value is 720.
  • Rotate (🔘 Boolean). Default value is true.
  • Slip duration (🔢 Number, Duration). Time needed for the platformer to regain control after slipping down a slope. Default value is 0.5.
  • Min angle for ground slipping (🔢 Number, Angle). Default value is 35.
  • Stand max angle (🔢 Number, Angle). Allow characters to fully stop on not too steep floors. Default value is 24.
  • Max sub-step number (🔢 Number, Dimensionless). Default value is 3.
  • Sub-step max time delta (🔢 Number, Duration). Default value is 0.02.
  • Min angle for ground unattaching (🔢 Number, Angle). Default value is 68.
  • Min speed for ground unattach (🔢 Number, Distance). Default value is 450.
  • Upwards slope factor (🔢 Number, Acceleration). Speed loss when moving upwards. Default value is 1350.
See internal technical details
  • Air acceleration is stored as AirAcceleration (Number). Unit is PixelAcceleration. Default value is 1012.
  • Air drag is stored as AirDrag (Number). Unit is Dimensionless. Default value is 0.
  • Air drag min speed Y is stored as AirDragMinSpeedY (Number). Unit is PixelSpeed. Default value is -720.
  • Ceil bounce factor (-1 to 1) is stored as CeilBounceFactor (Number). Default value is 0.
  • Deceleration is stored as Deceleration (Number). Unit is PixelAcceleration. Default value is 5400.
  • Downwards slope factor is stored as DownSlopeFactor (Number). Unit is PixelAcceleration. Default value is 1350.
  • Rotation speed when falling is stored as FallingRotationSpeed (Number). Unit is AngularSpeed. Default value is 168.75.
  • Max floor magnet distance (in character height per seconds) is stored as FloorMagnetDistanceMax (Number). Default value is 13.
  • Min floor magnet distance (in character height per seconds) is stored as FloorMagnetDistanceMin (Number). Default value is 3.
  • Friction is stored as Friction (Number). Unit is PixelAcceleration. Default value is 506.25.
  • Gravity is stored as Gravity (Number). Unit is PixelAcceleration. Default value is 2362.5.
  • Ground acceleration is stored as GroundAcceleration (Number). Unit is PixelAcceleration. Default value is 506.25.
  • Default controls is stored as IsDefaultControlsEnabled (Boolean). Default value is true.
  • Jump height reducer (0 to 1) is stored as JumpHeightReducer (Number). Default value is 0.615.
  • Jump speed is stored as JumpSpeed (Number). Unit is PixelSpeed. Default value is 1170.
  • Max falling speed is stored as MaxFallingSpeed (Number). Unit is PixelSpeed. Default value is 2880.
  • Max speed is stored as MaxSpeed (Number). Unit is PixelSpeed. Default value is 720.
  • Rotate is stored as ShouldRotate (Boolean). Default value is true.
  • Slip duration is stored as SlipDuration (Number). Unit is Second. Default value is 0.5.
  • Min angle for ground slipping is stored as SlipMinAngle (Number). Unit is DegreeAngle. Default value is 35.
  • Stand max angle is stored as StandMaxAngle (Number). Unit is DegreeAngle. Default value is 24.
  • Max sub-step number is stored as SubstepCountMax (Number). Unit is Dimensionless. Default value is 3.
  • Sub-step max time delta is stored as SubstepTimeDeltaMax (Number). Unit is Second. Default value is 0.02.
  • Min angle for ground unattaching is stored as UnattachMinAngle (Number). Unit is DegreeAngle. Default value is 68.
  • Min speed for ground unattach is stored as UnattachMinSpeed (Number). Unit is Pixel. Default value is 450.
  • Upwards slope factor is stored as UpSlopeFactor (Number). Unit is PixelAcceleration. Default value is 1350.

Behavior actions

Follow current platform
Follow the current platform.

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 HedgehogPlatformer::HedgehogCharacter::FollowCurrentPlatform.

Movement angle
Check if the movement angle is around a given direction.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2 (🔢 Number): Angle (in degrees)
  • Parameter 3 (🔢 Number): Tolerance (in degrees)

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::IsMovementAngleAround.

Air drag
Change the air drag of the object. The air drag reduce the speed on X axis.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetAirDrag.

Air drag min speed Y
Change the air drag min speed Y of the object.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetAirDragMinSpeedY.

Airborne acceleration
Change the acceleration when the object is in the air.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetAirborneAcceleration.

Allow jumping again
When this action is executed, the object is able to jump again, even if it is in the air: this can be useful to allow a double jump for example. This is not a permanent effect: you must call again this action every time you want to allow the object to jump (apart if it's on the floor).

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 HedgehogPlatformer::HedgehogCharacter::SetCanJump.

Forbid jumping again in the air
This revokes the effect of "Allow jumping again". The object is made unable to jump while in mid air. This has no effect if the object is not in the air.

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 HedgehogPlatformer::HedgehogCharacter::SetCanNotAirJump.

Collision layer
Change the collision layer of the object, only interacts with hedgehog platforms of the same layer.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetCollisionLayer.

Deceleration
Change the deceleration of the object when changing of direction on the ground.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetDeceleration.

Downwards slope factor
Change the acceleration when running down a slope. The actual deceleration applied to the character depends on how steep the slope is.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetDownSlopeFactor.

Friction
Change the friction of the object. The friction is a deceleration when there is no input.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetFriction.

Gravity
Change the gravity of the object.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetGravity.

Grounded acceleration
Change the acceleration when the object is on the ground.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetGroundedAcceleration.

Jump height reducer
Change the Jump height reducer factor of the object.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetJumpReducer.

Jump speed
Change the jump speed of the object.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetJumpSpeed.

Max speed
Change the max speed of the object while grounded.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetMaxSpeed.

Running lock remaining duration
Change the duration during which the character can't run left or right.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetRunningLockRemainingDuration.

Rotate the object
Enable or disable rotation of the character when moving on the ground of falling from the ceilling.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2 (❓ Yes or No): ShouldRotate

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetShouldRotate.

Speed
Change the current speed of the object. The speed can be negative when the object is on the ground.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetSpeed.

Horizontal speed
Change the current horizontal speed of the object. The object is automatically set in airborne state.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetSpeedX.

Vertical speed
Change the current vertical speed of the object. The object is automatically set in airborne state.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetSpeedY.

Stand max angle
Change the stand max angle of the object. Allow characters to fully stop on not too steep floors.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetStandMaxAngle.

Upwards slope factor
Change the deceleration factor when running up a slope. The actual deceleration applied to the character depends on how steep the slope is.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Operator
  • Parameter 3 (🔢 Number): Value

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SetUpSlopeFactor.

Simulate jump key press
Simulate a press of the jump key.

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 HedgehogPlatformer::HedgehogCharacter::SimulateJumpKey.

Simulate left key press
Simulate a press of the left key.

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 HedgehogPlatformer::HedgehogCharacter::SimulateLeftKey.

Simulate right key press
Simulate a press of the right key.

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 HedgehogPlatformer::HedgehogCharacter::SimulateRightKey.

Behavior conditions

Air drag
Compare the air drag of the object. The air drag reduce the speed on X axis.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::AirDrag.

Air drag min speed Y
Compare the air drag min speed Y of the object.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::AirDragMinSpeedY.

Airborne acceleration
Compare the acceleration when the object is in the air.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::AirborneAcceleration.

Can jump
Check if the object can jump.

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 HedgehogPlatformer::HedgehogCharacter::CanJump.

Collision layer
Compare the collision layer of the object, only interacts with hedgehog platforms of the same layer. .

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::CollisionLayer.

Deceleration
Compare the deceleration of the object when changing of direction on the ground.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::Deceleration.

Downwards slope factor
Compare the acceleration when running down a slope. The actual deceleration applied to the character depends on how steep the slope is.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::DownSlopeFactor.

Friction
Compare the friction of the object. The friction is a deceleration when there is no input.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::Friction.

Gravity
Compare the gravity of the object.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::Gravity.

Grounded acceleration
Compare the acceleration when the object is on the ground.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::GroundedAcceleration.

Is facing forward
Check if the character is facing forward.

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 HedgehogPlatformer::HedgehogCharacter::IsFacingForward.

Is jumping
Check if the object is in the air because of a jump.

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 HedgehogPlatformer::HedgehogCharacter::IsJumping.

Is moving
Checks if the object 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 HedgehogPlatformer::HedgehogCharacter::IsMoving.

Is on floor
Check if the object is on a platform.

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 HedgehogPlatformer::HedgehogCharacter::IsOnFloor.

Is on left ledge
Check if the object is on the left ledge of a platform.

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 HedgehogPlatformer::HedgehogCharacter::IsOnLeftLedge.

Is on right ledge
Check if the object is on the right ledge of a platform.

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 HedgehogPlatformer::HedgehogCharacter::IsOnRightLedge.

Is pushing
Check if the object is pushing againgst a wall.

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 HedgehogPlatformer::HedgehogCharacter::IsPushing.

Is slipping
Check if the object is slipping.

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 HedgehogPlatformer::HedgehogCharacter::IsSlipping.

Control pressed or simulated
A control was applied from a default control or simulated by an action.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2 (🔤 String): Key to check (one of: "Left", "Right", "Jump")

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::IsUsingControl.

Jump height reducer
Compare the Jump height reducer factor of the object.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::JumpReducer.

Jump speed
Compare the jump speed of the object.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::JumpSpeed.

Max speed
Compare the max speed of the object while grounded.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::MaxSpeed.

Running lock remaining duration
Compare the duration during which the character can't run left or right.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::RunningLockRemainingDuration.

Rotate the object
Check if the character is rotated while moving on the ground of falling from the ceilling.

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 HedgehogPlatformer::HedgehogCharacter::ShouldRotate.

Speed
Compare the current speed of the object. The speed can be negative when the object is on the ground.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::Speed.

Horizontal speed
Compare the current horizontal speed of the object. The object is automatically set in airborne state.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SpeedX.

Vertical speed
Compare the current vertical speed of the object. The object is automatically set in airborne state.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::SpeedY.

Stand max angle
Compare the stand max angle of the object. Allow characters to fully stop on not too steep floors.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::StandMaxAngle.

Upwards slope factor
Compare the deceleration factor when running up a slope. The actual deceleration applied to the character depends on how steep the slope is.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2: 🟰 Relational operator
  • Parameter 3 (🔢 Number): Value to compare

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::HedgehogCharacter::UpSlopeFactor.

Behavior expressions

Expression Description
Object.HedgehogCharacter::AirDrag() Return the air drag of the object. The air drag reduce the speed on X axis.
Object.HedgehogCharacter::AirDragMinSpeedY() Return the air drag min speed Y of the object.
Object.HedgehogCharacter::AirborneAcceleration() Return the acceleration when the object is in the air.
Object.HedgehogCharacter::CollisionLayer() Return the collision layer of the object, only interacts with hedgehog platforms of the same layer. .
Object.HedgehogCharacter::Deceleration() Return the deceleration of the object when changing of direction on the ground.
Object.HedgehogCharacter::DownSlopeFactor() Return the acceleration when running down a slope. The actual deceleration applied to the character depends on how steep the slope is.
Object.HedgehogCharacter::Friction() Return the friction of the object. The friction is a deceleration when there is no input.
Object.HedgehogCharacter::Gravity() Return the gravity of the object.
Object.HedgehogCharacter::GroundedAcceleration() Return the acceleration when the object is on the ground.
Object.HedgehogCharacter::JumpReducer() Return the Jump height reducer factor of the object.
Object.HedgehogCharacter::JumpSpeed() Return the jump speed of the object.
Object.HedgehogCharacter::MaxSpeed() Return the max speed of the object while grounded.
Object.HedgehogCharacter::MovementAngle() Return the angle (in degrees) in which the object is moving at.
Object.HedgehogCharacter::RunningLockRemainingDuration() Return the duration during which the character can't run left or right.
Object.HedgehogCharacter::Speed() Return the current speed of the object. The speed can be negative when the object is on the ground.
Object.HedgehogCharacter::SpeedX() Return the current horizontal speed of the object. The object is automatically set in airborne state.
Object.HedgehogCharacter::SpeedY() Return the current vertical speed of the object. The object is automatically set in airborne state.
Object.HedgehogCharacter::StandMaxAngle() Return the stand max angle of the object. Allow characters to fully stop on not too steep floors.
Object.HedgehogCharacter::UpSlopeFactor() Return the deceleration factor when running up a slope. The actual deceleration applied to the character depends on how steep the slope is.

Hedgehog character animator

Change animations and horizontal flipping of hedgehog characters automatically.

Behavior properties

  • Balance on ledge (🔤 String). Default value is BalanceOnLedge.
  • Brake (🔤 String). Default value is Brake.
  • Brake animation min speed (🔢 Number, Speed). Default value is 720.
  • Fall (🔤 String). Default value is Fall.
  • Idle (🔤 String). Default value is Idle.
  • Jump (🔤 String). Default value is Jump.
  • Jump rotation speed (🔢 Number, Angular speed). Default value is 360.
  • Push (🔤 String). Default value is Push.
  • Run (🔤 String). Default value is Run.
  • Run animation min speed (🔢 Number, Speed). Default value is 1080.
  • Walk (🔤 String). Default value is Walk.
See internal technical details

This behavior must be used on an object also having a behavior with type "AnimatableCapability::AnimatableBehavior". This is stored on property Animation.

  • Balance on ledge is stored as BalanceOnLedgeAnimationName (String). Default value is BalanceOnLedge.
  • Brake is stored as BrakeAnimationName (String). Default value is Brake.
  • Brake animation min speed is stored as BrakeMinSpeed (Number). Unit is PixelSpeed. Default value is 720.
  • Fall is stored as FallAnimationName (String). Default value is Fall.

    This behavior must be used on an object also having a behavior with type "FlippableCapability::FlippableBehavior". This is stored on property Flippable.

This behavior must be used on an object also having a behavior with type "HedgehogPlatformer::HedgehogCharacter". This is stored on property HedgehogCharacter.

  • Idle is stored as IdleAnimationName (String). Default value is Idle.
  • Jump is stored as JumpAnimationName (String). Default value is Jump.
  • Jump rotation speed is stored as JumpRotationSpeed (Number). Unit is AngularSpeed. Default value is 360.
  • Push is stored as PushAnimationName (String). Default value is Push.
  • Run is stored as RunAnimationName (String). Default value is Run.
  • Run animation min speed is stored as RunMinSpeed (Number). Unit is PixelSpeed. Default value is 1080.
  • Walk is stored as WalkAnimationName (String). Default value is Walk.

No expressions for this behavior.

Hedgehog character rolling

Toggle rolling mode.

Behavior properties

  • Deceleration (🔢 Number, Acceleration). When changing of direction on the ground. Default value is 1350.
  • Downwards slope factor (🔢 Number, Acceleration). Speed gain when moving downwards. Default value is 843.75.
  • Friction (🔢 Number, Acceleration). When there is no input. Default value is 253.125.
  • Max speed (🔢 Number, Speed). Default value is 2880.
  • Min speed (🔢 Number, Speed). The minimal speed to be able to start rolling. Default value is 180.
  • Spindash speed (🔢 Number, Speed). Default value is 1440.
  • Upwards slope factor (🔢 Number, Acceleration). Speed loss when moving upwards. Default value is 3375.
See internal technical details
  • Deceleration is stored as Deceleration (Number). Unit is PixelAcceleration. Default value is 1350.
  • Downwards slope factor is stored as DownSlopeFactor (Number). Unit is PixelAcceleration. Default value is 843.75.

  • Friction is stored as Friction (Number). Unit is PixelAcceleration. Default value is 253.125.

    This behavior must be used on an object also having a behavior with type "HedgehogPlatformer::HedgehogCharacter". This is stored on property HedgehogCharacter.

  • Max speed is stored as MaxSpeed (Number). Unit is PixelSpeed. Default value is 2880.

  • Min speed is stored as MinSpeed (Number). Unit is PixelSpeed. Default value is 180.
  • Spindash speed is stored as SpinDashSpeed (Number). Unit is PixelSpeed. Default value is 1440.
  • Upwards slope factor is stored as UpSlopeFactor (Number). Unit is PixelAcceleration. Default value is 3375.

Behavior actions

Simulate roll key press
Simulate a press of the Roll key. When characters stand still, they chouch instead of rolling.

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 HedgehogPlatformer::HedgehogCharacterRolling::SimulateRollKey.

Simulate spindash key press
Simulate a press of the spindash key.

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 HedgehogPlatformer::HedgehogCharacterRolling::SimulateSpindashKey.

Simulate spindash or jump key press
Simulate a press of the Spindash key when the character is crouching or the jump key otherwise.

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 HedgehogPlatformer::HedgehogCharacterRolling::SimulateSpindashOrJumpKey.

Behavior conditions

Started a spindash
Check if the character has just started a spindash.

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 HedgehogPlatformer::HedgehogCharacterRolling::HasJustStartedSpinDash.

Is charging a spindash
Check if the character is charging a spindash.

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 HedgehogPlatformer::HedgehogCharacterRolling::IsCharging.

Is crouching
Check if the character is crouching.

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 HedgehogPlatformer::HedgehogCharacterRolling::IsCrouching.

Is rolling
Check if the character is rolling.

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 HedgehogPlatformer::HedgehogCharacterRolling::IsRolling.

No expressions for this behavior.

Hedgehog platform

Flag objects as being platforms which characters can run on.

Behavior properties

  • Collision layer (🔢 Number, Dimensionless). Only interacts with characters of the same layer. Default value is 0.
  • Only for grounded characters (🔘 Boolean). Default value is false.
  • Type (Choice, one of: "Platform", "Jumpthru", "Angle lock marker", "Left-right layer toggle marker", "Top-bottom layer toggle marker"). Default value is Platform.
  • Rotate characters (🔘 Boolean). Default value is true.
  • Snap horizontally (🔘 Boolean). Snap movement angle to 0° or 180°. Default value is true.
  • Snap vertically (🔘 Boolean). Snap movement angle to 90° or 270°. Default value is true.
  • Targeted layer (🔢 Number, Dimensionless). The layer given to player on the right or bottom. The marker layer is used for the other side. Default value is 1.
See internal technical details
  • Collision layer is stored as CollisionLayer (Number). Unit is Dimensionless. Default value is 0.
  • Only for grounded characters is stored as IsRequiringGrounded (Boolean). Default value is false.
  • Type is stored as PlatformType (Choice). Default value is Platform.
  • Rotate characters is stored as ShouldRotateCharacters (Boolean). Default value is true.
  • Snap horizontally is stored as ShouldSnapAngleHorizontally (Boolean). Default value is true.
  • Snap vertically is stored as ShouldSnapAngleVertically (Boolean). Default value is true.
  • Targeted layer is stored as TargetedCollisionLayer (Number). Unit is Dimensionless. Default value is 1.

No expressions for this behavior.

Hedgehog spring

Push hedgehog characters.

Behavior properties

  • Character running lock duration (🔢 Number, Duration). Default value is 0.267.
  • Push speed (🔢 Number, Speed). Default value is 1800.
See internal technical details
  • Character running lock duration is stored as CharacterRunningLockDuration (Number). Unit is Second. Default value is 0.267.

    This behavior must be used on an object also having a behavior with type "FlippableCapability::FlippableBehavior". This is stored on property Flip.

This behavior must be used on an object also having a behavior with type "HedgehogPlatformer::HedgehogPlatform". This is stored on property HedgehogPlatform.

  • Push speed is stored as PushSpeed (Number). Unit is PixelSpeed. Default value is 1800.

Behavior actions

Push character
Make the spring push the character.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2 (👾 Object): Character
  • Parameter 3 (🧩 Behavior): Hedgehog platformer character

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

Technical note: this action internal type (in GDevelop JSON) is HedgehogPlatformer::Spring::Push.

Behavior conditions

Can push
Check if the spring can push the character.

See parameters & details
  • Parameter 0: 👾 Object
  • Parameter 1: 🧩 Behavior
  • Parameter 2 (👾 Object): Character
  • Parameter 3 (🧩 Behavior): Hedgehog platformer character

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

Technical note: this condition internal type (in GDevelop JSON) is HedgehogPlatformer::Spring::CanPush.

No expressions for this behavior.

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