4 files changed, 146 insertions, 0 deletions
diff --git a/internal/object/item.go b/internal/object/item.go
new file mode 100644
index 0000000..67a2998
--- /dev/null
+++ b/internal/object/item.go
@@ -0,0 +1,62 @@
+package object
+
+import "strings"
+
+type EquipSlot string
+
+const (
+	SlotHead      EquipSlot = "head"
+	SlotNeck      EquipSlot = "neck"
+	SlotTorso     EquipSlot = "torso"
+	SlotLegs      EquipSlot = "legs"
+	SlotHands     EquipSlot = "hands"
+	SlotFeet      EquipSlot = "feet"
+	SlotBack      EquipSlot = "back"
+	SlotAmmo      EquipSlot = "ammo"
+	SlotMainHand  EquipSlot = "main_hand"
+	SlotOffHand   EquipSlot = "off_hand"
+	SlotRing      EquipSlot = "ring"
+)
+
+type WeaponType string
+
+const (
+	WeaponMelee      WeaponType = "melee"
+	WeaponRanged     WeaponType = "ranged"
+	WeaponTechnology WeaponType = "technology"
+)
+
+type ItemDef struct {
+	ID          string         `yaml:"id"`
+	Name        string         `yaml:"name"`
+	Aliases     []string       `yaml:"aliases"`
+	Description string         `yaml:"description"`
+	Value       int            `yaml:"value"` // credits
+	Stackable   bool           `yaml:"stackable"`
+	EquipSlot   EquipSlot      `yaml:"equip_slot"`
+	WeaponType  WeaponType     `yaml:"weapon_type"`
+	Stats       ItemStats      `yaml:"stats"`
+	Speed       int            `yaml:"speed"`    // ticks between attacks
+	Toolbelt    bool           `yaml:"toolbelt"` // can go on toolbelt
+}
+
+type ItemStats struct {
+	AttackBonus    int `yaml:"attack_bonus"`
+	StrengthBonus  int `yaml:"strength_bonus"`
+	DefenseBonus   int `yaml:"defense_bonus"`
+	ScienceBonus   int `yaml:"science_bonus"`
+	TechnologyBonus int `yaml:"technology_bonus"`
+}
+
+func (d *ItemDef) MatchesName(input string) bool {
+	lower := strings.ToLower(input)
+	if strings.ToLower(d.Name) == lower {
+		return true
+	}
+	for _, a := range d.Aliases {
+		if strings.ToLower(a) == lower {
+			return true
+		}
+	}
+	return false
+}
diff --git a/internal/object/item_store.go b/internal/object/item_store.go
new file mode 100644
index 0000000..6d62143
--- /dev/null
+++ b/internal/object/item_store.go
@@ -0,0 +1,38 @@
+package object
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"gopkg.in/yaml.v3"
+)
+
+type ItemStore struct {
+	dataDir string
+	cache   map[string]*ItemDef
+}
+
+func NewItemStore(dataDir string) *ItemStore {
+	return &ItemStore{
+		dataDir: dataDir,
+		cache:   make(map[string]*ItemDef),
+	}
+}
+
+func (s *ItemStore) Load(id string) (*ItemDef, error) {
+	if def, ok := s.cache[id]; ok {
+		return def, nil
+	}
+	path := filepath.Join(s.dataDir, "items", id+".yaml")
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, fmt.Errorf("read item %s: %w", id, err)
+	}
+	var def ItemDef
+	if err := yaml.Unmarshal(data, &def); err != nil {
+		return nil, fmt.Errorf("parse item %s: %w", id, err)
+	}
+	s.cache[id] = &def
+	return &def, nil
+}
diff --git a/internal/object/object.go b/internal/object/object.go
new file mode 100644
index 0000000..3b8741a
--- /dev/null
+++ b/internal/object/object.go
@@ -0,0 +1,8 @@
+package object
+
+type ObjectDef struct {
+	ID       string         `yaml:"id"`
+	Name     string         `yaml:"name"`
+	Behavior string         `yaml:"behavior"`
+	Props    map[string]any `yaml:"props"`
+}
diff --git a/internal/object/store.go b/internal/object/store.go
new file mode 100644
index 0000000..a884601
--- /dev/null
+++ b/internal/object/store.go
@@ -0,0 +1,38 @@
+package object
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"gopkg.in/yaml.v3"
+)
+
+type ObjectStore struct {
+	dataDir string
+	cache   map[string]*ObjectDef
+}
+
+func NewObjectStore(dataDir string) *ObjectStore {
+	return &ObjectStore{
+		dataDir: dataDir,
+		cache:   make(map[string]*ObjectDef),
+	}
+}
+
+func (s *ObjectStore) Load(id string) (*ObjectDef, error) {
+	if def, ok := s.cache[id]; ok {
+		return def, nil
+	}
+	path := filepath.Join(s.dataDir, "objects", fmt.Sprintf("%s.yaml", id))
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, fmt.Errorf("read object %s: %w", id, err)
+	}
+	var def ObjectDef
+	if err := yaml.Unmarshal(data, &def); err != nil {
+		return nil, fmt.Errorf("parse object %s: %w", id, err)
+	}
+	s.cache[id] = &def
+	return &def, nil
+}