doodle/pkg/scripting/js_api.go

56 lines
1.3 KiB
Go

package scripting
import (
"time"
"git.kirsle.net/apps/doodle/pkg/log"
"git.kirsle.net/apps/doodle/pkg/physics"
"git.kirsle.net/apps/doodle/pkg/shmem"
"git.kirsle.net/go/render"
)
// JSProxy offers a function API interface to expose to Doodad javascripts.
// These methods safely give the JS access to important attributes and functions
// without exposing unintended API surface area in the process.
type JSProxy map[string]interface{}
// NewJSProxy initializes the API structure for JavaScript binding.
func NewJSProxy(vm *VM) JSProxy {
return JSProxy{
// Console logging.
"console": map[string]interface{}{
"log": log.Info,
"debug": log.Debug,
"warn": log.Warn,
"error": log.Error,
},
// Type constructors.
"RGBA": render.RGBA,
"Point": render.NewPoint,
"Vector": physics.NewVector,
// Useful types and functions.
"Flash": shmem.Flash,
"GetTick": func() uint64 {
return shmem.Tick
},
"time": map[string]interface{}{
"Now": time.Now,
"Add": func(t time.Time, ms int64) time.Time {
return t.Add(time.Duration(ms) * time.Millisecond)
},
},
// Bindings into the VM.
"Events": vm.Events,
"setTimeout": vm.SetTimeout,
"setInterval": vm.SetInterval,
"clearTimeout": vm.ClearTimer,
"clearInterval": vm.ClearTimer,
// Self for an actor to inspect themselves.
"Self": vm.Self,
}
}