System
Event
How to use system events
Events are a useful feature that can be used for Cardinal to notify the game client of a certain event or information.
package systems
import "pkg.world.dev/world-engine/cardinal"
func AttackSystem(worldCtx cardinal.WorldContext) {
// Attack system logic
// ...
// Broadcast the event to all players
worldCtx.EmitEvent(fmt.Sprintf("player attacked: %s %d"))
}
EmitEvent
The EmitEvent
method on cardinal.WorldContext
will emit events to all clients under the subject “event”.
To see how to receive notifications go here: https://heroiclabs.com/docs/nakama/concepts/notifications/#receive-notifications (Unity)
func (worldCtx cardinal.WorldContext) EmitEvent(event string)
Parameter | Type | Description |
---|---|---|
event | string | The string to emit as an event |