fixed monstats lint errors, added doc file for d2datadict (#494)

* adding comments to d2interface for linter

* moved d2render renderer interfaces and types into d2interface

* fixed most lint errors for monstats loader

d2common/d2data/d2datadict/d2datadict.go

@@ -0,0 +1,3 @@
+// Package d2datadict parses txt files as data dictionaries and exports records arrays
+// For the Diablo II MPQ's, data dictionaries are the tab-separated value txt files found in `data/global/excel`
+package d2datadict

d2common/d2enum/monster_alignment_type.go

@@ -0,0 +1,17 @@
+package d2enum
+
+// MonsterAlignmentType determines the hostility of the monster towards players
+type MonsterAlignmentType int
+
+const (
+	// MonsterEnemy flag will make monsters hostile towards players
+	MonsterEnemy MonsterAlignmentType = iota
+
+	// MonsterFriend will make monsters friendly towards players
+	// this is likely used by NPC's and summons
+	MonsterFriend
+
+	// MonsterNeutral will make monsters not care about players or monsters
+	// this flag is used for `critter` type monsters
+	MonsterNeutral
+)

d2common/d2enum/monster_combat_type.go

@@ -0,0 +1,12 @@
+package d2enum
+
+// MonsterCombatType is used for setting the monster as melee or ranged
+type MonsterCombatType int
+
+const (
+	// MonsterMelee is a flag that sets the monster as melee-only
+	MonsterMelee MonsterCombatType = iota
+
+	// MonsterRanged is a flag that sets the monster as ranged-only
+	MonsterRanged
+)