Function getMobVM

internal/scripting/mob.go:208–252

(mobActor *ScriptActor)

}

func getMobVM(mobActor *ScriptActor) (*VMWrapper, error) {

	scriptId := fmt.Sprintf(`%d-%s`, mobActor.MobTypeId(), mobActor.getScriptTag())

	if vmw, ok := mobVMCache[scriptId]; ok {
		if vmw == nil {
			return nil, errNoScript
		}
		if scriptHotReload {
			scriptPath := mobActor.mobRecord.GetScriptPath()
			if info, err := os.Stat(scriptPath); err == nil {
				if info.ModTime().After(vmw.loadedAt) {
					delete(mobVMCache, scriptId)
					// fall through to reload
				} else {
					return vmw, nil
				}
			} else {
				return vmw, nil
			}
		} else {
			return vmw, nil
		}
	}

	script := mobActor.getScript()
	if len(script) == 0 {
		mobVMCache[scriptId] = nil
		return nil, errNoScript
	}

	vmw, err := loadVM(fmt.Sprintf(`mob-%s`, scriptId), script, func(vm *goja.Runtime) error {
		if fn, ok := goja.AssertFunction(vm.Get(`onLoad`)); ok {
			_, err := fn(goja.Undefined(), vm.ToValue(mobActor))
			return err
		}
		return nil
	})
	if err != nil {
		return nil, err
	}

	mobVMCache[scriptId] = vmw
	return vmw, nil
}