76 lines
1.3 KiB
Go
76 lines
1.3 KiB
Go
package simulator
|
|
|
|
import "strconv"
|
|
|
|
//GlobalItems table
|
|
var GlobalItems map[itemType]item
|
|
var nameToItem map[string]itemType
|
|
|
|
type item interface {
|
|
ID() itemType
|
|
Type() ObjectType
|
|
Render() string
|
|
String() string
|
|
Describe() string
|
|
}
|
|
|
|
//ItemEntry is a human/ui friendly item description
|
|
type ItemEntry interface {
|
|
String() string
|
|
Describe() string
|
|
Render() string
|
|
Description() string
|
|
ID() itemType
|
|
}
|
|
|
|
type itemType int
|
|
|
|
func (i itemType) String() string {
|
|
return strconv.Itoa(int(i))
|
|
}
|
|
|
|
type empty struct {
|
|
}
|
|
|
|
func (e empty) ID() itemType {
|
|
return itemType(0)
|
|
}
|
|
|
|
func (e empty) Type() ObjectType {
|
|
return emptyObject
|
|
}
|
|
|
|
func (e empty) String() string {
|
|
return ""
|
|
}
|
|
|
|
func (e empty) Render() string {
|
|
return ""
|
|
}
|
|
func (e empty) Describe() string {
|
|
return "an empty item"
|
|
}
|
|
|
|
func initItems() {
|
|
GlobalItems = make(map[itemType]item)
|
|
nameToItem = make(map[string]itemType)
|
|
}
|
|
|
|
func newItem(id itemType, obj item) {
|
|
if _, ok := GlobalItems[id]; ok {
|
|
panic("trying to add item that already exists")
|
|
}
|
|
if id == 0 || obj.String() == "" {
|
|
panic("trying to add undeclared empty item")
|
|
}
|
|
GlobalItems[id] = obj
|
|
nameToItem[obj.String()] = id
|
|
}
|
|
|
|
func lookupByName(name string) item {
|
|
if res, ok := nameToItem[name]; ok {
|
|
return GlobalItems[res]
|
|
}
|
|
return empty{}
|
|
}
|