Image showing a PrintLog World Trigger component, as seen in the Entity Inspector.
World Trigger Overview
Functionality
World Triggers do the actual processing once an input fires.
Triggers can Trigger Other Triggers.
Triggers can have Reset Enabled or Disabled.
Reset can be by toggle, or by direct command.
Repeated Activations can just keep firing the same Trigger if valid.
Triggers have logic for:
Trigger
Sets Triggered
Updates Listening
Reset
Removes Triggered
Updates Listening
Some can have boolean logic like “Any“ or “All“ as requirements to finally activate. Allowing the need for multiple Switches.
TriggerTypes
Basic Types
- Toggle (On/Off)
- ProgressionSwitch (Count Up/Down)
- Make Sound
- Play/Stop Cinematic/Timeline
- Dialogue
- Item Spawn
- Spawn Object
- Spawn Pulse
- GS_Action
- SetRecord
- Play/Stop Animation
Unit Facing
Has various means of targeting a Unit.
- Equip Item
- Affect Stats
- Give Item
- Status Effect
- Level Up
- Change Stage (player only)
- Teleport
Repeater/Boolean Types
- Invert Trigger
- Any/All Trigger
- Timeout Trigger
Using World Triggers
API
// WorldTriggerIncomingEvents
//! Trigger intakes a list of channels to determine if it should fire.
//! If onlyOnce, will not fire a second time.
//! Call parent to determine if Trigger goes through before handling additional logic.
bool Trigger(AZStd::unordered_set<AZStd::string> channels) override;
//! Reset takes channels like Trigger, but processes the reveral of what the Trigger did.
//! If can't reset, will not fire.
//! Call parent to determine if Reset goes through before handling additional logic.
bool Reset(AZStd::unordered_set<AZStd::string> channels) override;
// Local Methods
// Utility that quickly checks for channels being fired.
virtual bool EvaluateChannels(AZStd::unordered_set<AZStd::string> channels);
virtual bool IsTriggered() { return isTriggered; };