Triggers

Triggers are used to fire Actions and Conditions when something happens. This something can range from the player pressing a certain key to an NPC's entering a certain area.

(Example of a Trigger with the Input options open)

Triggers are executed from top to bottom.

Advanced Options

The white cog at the top right of the component there's an Advanced Options foldout. You can specify a minimum distance from which the Player has to be for this trigger to be activated.

This is specially useful when dealing with pickup items or interactive doors.

There's also a shortcut option to create a Hotspot component from within the Trigger.

Tips

Some times you'll want a Trigger to execute an Action only once. You can easily take advantage of an Action's DestroyAfterFinishing property to destroy both the Action and the Trigger.

To do so, simply add an Actions component inside the same Game Object where the Trigger is. After executing the Actions, it will destroy the entire Game Object.

Available Triggers

These are all the Triggers that come with Game Creator. You can download more at the Game Creator Hub, creating your own using our Open API as well as find more inside each of the modules.

Input

Trigger Name

Description

On Cursor Raycast

When the cursor is locked at the center of the screen, use this Trigger to throw a raycast from the center of the screen to simulate a click

On Hover Hold Key

Detects when the mouse is over the Trigger's Collider and the user holds a key for a certain amount of time

On Hover Press Key

Detects when the mouse is over the Trigger's Collider and the user presses a key

On Key Down

Detects when the user presses a key down

On Key Hold

Detects when the user presses a key down and holds it for a certain amount of time

On Key Up

Detects when the user releases a key

On Mouse Down

Detects when the user presses a mouse button down

On Mouse Enter

Detects when the mouse hovers over the Trigger's Collider

On Mouse Exit

Detects when the mouse exits hovering the Trigger's Collider

On Mouse Left Hold

Detects when the mouse left button is being pressed for a certain amount of time

On Mouse Middle Hold

Detects when the mouse middle button is being pressed for a certain amount of time

On Mouse Right Hold

Detects when the mouse right button is being pressed for a certain amount of time

On Mouse Left Click

Detects when the mouse left clicks on the Trigger's Collider

On Mouse Middle Click

Detects when the mouse middle clicks on the Trigger's Collider

On Mouse Right Click

Detects when the mouse right clicks on the Trigger's Collider

On Mouse Up

Detects when a mouse button is released

Raycast Mouse World Position

Detects when the mouse has clicked the Trigger's Collider and stores the point in a Variable

Character

Trigger Name

Description

On Step

Detects when a Character makes a step (right foot, left foot or any of them)

On Jump

Detects when a Character jumps

On Land

Detects when a Character lands

Object

Trigger Name

Description

On Collision Enter

Detects when an object touches the Trigger's Collider area

On Collision Exit

Detects when an object exits the Trigger's Collider area

On Player Enter

Detects when the Player enters the Trigger's Collider area

On Player Enter Key

Detects when the user presses a key and the Player is within the Trigger's Collider area

On Player Exit

Detects when the Player exits the Trigger's Collider area

On Player Stay Timeout

Detects when the Player has been at least some seconds inside the Trigger's Collider area

On Trigger Enter

Detects when an object enters the Trigger's Collider area and has the isTrigger flag set as true

On Tag Enter

Detects when an object with a certain tag enters the Trigger's Collider area

On Trigger Exit

Detects when an object exits the Trigger's Collider area and has the isTrigger flag set to true

On Tag Exit

Detects when an object with a certain tag exits the Trigger's Collider area

On Trigger Stay Timeout

Detects when an object has been at least a few seconds inside the Trigger's Collider area

Variables

Trigger Name

Description

On Variable Change

Detects when a Global, Local or List Variable changes its value/s

User Interface

Trigger Name

Description

On Mouse Enter UI

Detects when the mouse hovers a UI element

On Mouse Exit UI

Detects when the mouse exits hovering a UI element

General

Trigger Name

Description

On Event Receive

Detects when a certain Dispatched Event is received. For more information on the Event System click here

On Invoke

Detects when a Trigger is manually invoked

On Disable

Detects when the Trigger Game Object is disabled

On Enable

Detects when the Trigger Game Object is enabled

On Load

Detects when a game is loaded from a save file

On Save

Detects when a game is saved

On Start

Detects when the Trigger Game Object is initialized