54 lines
1.0 KiB
Go
54 lines
1.0 KiB
Go
|
package scripting
|
||
|
|
|
||
|
|
import (
|
||
|
|
"github.com/robertkrimen/otto"
|
||
|
|
)
|
||
|
|
|
||
|
|
// Events API for Doodad scripts.
|
||
|
|
type Events struct {
|
||
|
|
registry map[string][]otto.Value
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewEvents initializes the Events API.
|
||
|
|
func NewEvents() *Events {
|
||
|
|
return &Events{
|
||
|
|
registry: map[string][]otto.Value{},
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// OnCollide fires when another actor collides with yours.
|
||
|
|
func (e *Events) OnCollide(call otto.FunctionCall) otto.Value {
|
||
|
|
callback := call.Argument(0)
|
||
|
|
if !callback.IsFunction() {
|
||
|
|
return otto.Value{} // TODO
|
||
|
|
}
|
||
|
|
|
||
|
|
if _, ok := e.registry[CollideEvent]; !ok {
|
||
|
|
e.registry[CollideEvent] = []otto.Value{}
|
||
|
|
}
|
||
|
|
|
||
|
|
e.registry[CollideEvent] = append(e.registry[CollideEvent], callback)
|
||
|
|
return otto.Value{}
|
||
|
|
}
|
||
|
|
|
||
|
|
// RunCollide invokes the OnCollide handler function.
|
||
|
|
func (e *Events) RunCollide() error {
|
||
|
|
if _, ok := e.registry[CollideEvent]; !ok {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
for _, callback := range e.registry[CollideEvent] {
|
||
|
|
_, err := callback.Call(otto.Value{}, "test argument")
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// Event name constants.
|
||
|
|
const (
|
||
|
|
CollideEvent = "collide"
|
||
|
|
)
|