yasshi2525/RushHour

package entities

// Entity represents that it is CRUD object.
type Entity interface {
    B() *Base
    CheckDelete() error
    BeforeDelete()
    Delete()
    Resolve(...Entity)
}

// Initializable represents that setup is required.
type Initializable interface {
    // Init will be called after instanciation.
    Init(*Model)
}

// Localable represents that exists geographically and can be specified by point.
type Localable interface {
    B() *Base
    Pos() *Point
}

// Relayable represents connectable for Human moving
type Relayable interface {
    // In represents how other can reach itself.
    InSteps() map[uint]*Step
    // Out represents how itselt can reach other.
    OutSteps() map[uint]*Step

    B() *Base
    Pos() *Point
    CheckDelete() error
    BeforeDelete()
    Delete()
    Resolve(...Entity)
}

// Connectable represents movability of two resource
type Connectable interface {
    B() *Base
    From() Entity
    To() Entity
    Cost() float64
}

// Migratable set some_id fields from reference.
// Migratable is for database migration
type Migratable interface {
    // Marshal set id from object
    Marshal()
    // Unmarshal set object from id
    UnMarshal()
}

// Persistable represents Differencial backup
type Persistable interface {
    B() *Base
    P() *Persistence
}

// Steppable represents human over it can step forward at certain rate.
type Steppable interface {
    Step(*float64, *float64)
    Loc(float64) *Point
}