Added loaders for compcodes.txt, events.txt and monai.txt (#665)

* added loaders for compcodes.txt, events.txt and monai.txt

* fixes in response to PR comments

Co-authored-by: BojanoN <bojan.novkovic@kset.org>

d2common/d2data/d2datadict/component_codes.go

@@ -0,0 +1,34 @@
+package d2datadict
+
+import (
+	"log"
+
+	"github.com/OpenDiablo2/OpenDiablo2/d2common"
+)
+
+type ComponentCodeRecord struct {
+	Component string
+	Code      string
+}
+
+var ComponentCodes map[string]*ComponentCodeRecord
+
+func LoadComponentCodes(file []byte) {
+	ComponentCodes = make(map[string]*ComponentCodeRecord)
+
+	d := d2common.LoadDataDictionary(file)
+	for d.Next() {
+		record := &ComponentCodeRecord{
+			Component: d.String("component"),
+			Code:      d.String("code"),
+		}
+		ComponentCodes[record.Component] = record
+	}
+
+	if d.Err != nil {
+		panic(d.Err)
+	}
+
+	log.Printf("Loaded %d ComponentCode records", len(ComponentCodes))
+
+}

d2common/d2data/d2datadict/events.go

@@ -0,0 +1,32 @@
+package d2datadict
+
+import (
+	"log"
+
+	"github.com/OpenDiablo2/OpenDiablo2/d2common"
+)
+
+type EventRecord struct {
+	Event string
+}
+
+var Events map[string]*EventRecord
+
+func LoadEvents(file []byte) {
+	Events = make(map[string]*EventRecord)
+
+	d := d2common.LoadDataDictionary(file)
+	for d.Next() {
+		record := &EventRecord{
+			Event: d.String("event"),
+		}
+		Events[record.Event] = record
+	}
+
+	if d.Err != nil {
+		panic(d.Err)
+	}
+
+	log.Printf("Loaded %d Event records", len(Events))
+
+}

d2common/d2data/d2datadict/monster_ai.go

@@ -0,0 +1,33 @@
+package d2datadict
+
+import (
+	"log"
+
+	"github.com/OpenDiablo2/OpenDiablo2/d2common"
+)
+
+// The monai.txt file is a lookup table for unit AI codes
+type MonsterAIRecord struct {
+	AI string
+}
+
+var MonsterAI map[string]*MonsterAIRecord
+
+func LoadMonsterAI(file []byte) {
+	MonsterAI = make(map[string]*MonsterAIRecord)
+
+	d := d2common.LoadDataDictionary(file)
+	for d.Next() {
+		record := &MonsterAIRecord{
+			AI: d.String("AI"),
+		}
+		MonsterAI[record.AI] = record
+	}
+
+	if d.Err != nil {
+		panic(d.Err)
+	}
+
+	log.Printf("Loaded %d MonsterAI records", len(MonsterAI))
+
+}