feat: trigger system for scripted events added.

1 files changed, 61 insertions, 0 deletions

diff --git a/internal/world/trigger.go b/internal/world/trigger.go
new file mode 100644
index 0000000..7c06be4
--- /dev/null
+++ b/internal/world/trigger.go
@@ -0,0 +1,61 @@
+package world
+
+import (
+	"gopkg.in/yaml.v3"
+)
+
+type TriggerDef struct {
+	ID           string        `yaml:"id"`
+	OnPlayerFlag string        `yaml:"on_player_flag"`
+	OnFlag       string        `yaml:"on_flag"`
+	Value        any           `yaml:"value"`
+	Room         int           `yaml:"room"`
+	Steps        []TriggerStep `yaml:"steps"`
+}
+
+func (t *TriggerDef) IsPlayerFlagTrigger() bool { return t.OnPlayerFlag != "" }
+
+func (t *TriggerDef) IsWorldFlagTrigger() bool { return t.OnFlag != "" }
+
+type TriggerStep struct {
+	Delay           int             `yaml:"delay"`
+	Message         string          `yaml:"message"`
+	Broadcast       string          `yaml:"broadcast"`
+	BroadcastGlobal string          `yaml:"broadcast_global"`
+	SetFlags        map[string]any  `yaml:"set_flags"`
+	SetPlayerFlags  map[string]any  `yaml:"set_player_flags"`
+	SpawnMob        *SpawnMobConfig `yaml:"spawn_mob"`
+	GiveItem        string          `yaml:"give_item"`
+	TakeItem        string          `yaml:"take_item"`
+	Teleport        int             `yaml:"teleport"`
+	Heal            int             `yaml:"heal"`
+	DespawnMob      string          `yaml:"despawn_mob"`
+}
+
+type SpawnMobConfig struct {
+	ID             string   `yaml:"id"`
+	OwnerOnly      bool     `yaml:"owner_only"`
+	DespawnOnLeave bool     `yaml:"despawn_on_leave"`
+	DespawnRooms   []int    `yaml:"despawn_rooms"`
+	DespawnTicks   float64 `yaml:"despawn_ticks"`
+}
+
+func (s *SpawnMobConfig) UnmarshalYAML(value *yaml.Node) error {
+	if value.Kind == yaml.ScalarNode {
+		var id string
+		if err := value.Decode(&id); err != nil {
+			return err
+		}
+		s.ID = id
+		return nil
+	}
+	type raw SpawnMobConfig
+	return value.Decode((*raw)(s))
+}
+
+func (t TriggerStep) IsTimed() bool {
+	return t.Delay > 0 || len(t.SetFlags) > 0 || len(t.SetPlayerFlags) > 0 ||
+		t.Message != "" || t.Broadcast != "" || t.BroadcastGlobal != "" ||
+		t.SpawnMob != nil || t.GiveItem != "" || t.TakeItem != "" ||
+		t.Teleport != 0 || t.Heal != 0 || t.DespawnMob != ""
+}