75 lines
1.2 KiB
Go
75 lines
1.2 KiB
Go
package game
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import (
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"fmt"
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"time"
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"code.haedhutner.dev/mvv/LastMUD/internal/logging"
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)
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type EventType int
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const (
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PlayerJoin EventType = iota
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PlayerCommand
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PlayerLeave
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PlayerSpeak
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)
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func (et EventType) String() string {
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switch et {
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case PlayerCommand:
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return "PlayerCommand"
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case PlayerJoin:
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return "PlayerJoin"
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case PlayerLeave:
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return "PlayerLeave"
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case PlayerSpeak:
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return "PlayerSpeak"
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default:
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return "Unknown"
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}
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}
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type GameEvent interface {
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Type() EventType
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Handle(game *LastMUDGame, delta time.Duration)
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}
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func stringifyEvent(ev GameEvent) string {
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return ev.Type().String() + fmt.Sprintf(`%+v`, ev)
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}
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type EventBus struct {
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events chan GameEvent
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}
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func CreateEventBus() *EventBus {
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return &EventBus{
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events: make(chan GameEvent, 10),
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}
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}
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func (eb *EventBus) HasNext() bool {
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return len(eb.events) > 0
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}
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func (eb *EventBus) Pop() (event GameEvent) {
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select {
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case event := <-eb.events:
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logging.Debug("Popped event ", stringifyEvent(event))
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return event
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default:
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return nil
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}
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}
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func (eb *EventBus) Push(event GameEvent) {
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eb.events <- event
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logging.Debug("Enqueued event ", stringifyEvent(event))
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}
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func (eb *EventBus) close() {
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close(eb.events)
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}
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