Пример #1
0
/*
 * LoadEntitiesData loads the entities data from the given package.
 *
 * It decodes it into an EntititesData struct
 */
func LoadEntitiesData(pkg resource.Package) (*EntitiesData, error) {
	md := new(EntitiesData)
	err := resource.LoadJSON(pkg, entitiesURI, &md)
	return md, err
}
Пример #2
0
func newGameData(pkg resource.Package) (*gameData, error) {
	var (
		gd  *gameData
		err error
	)
	gd = new(gameData)
	gd.entitiesData = make(EntityDataDict)
	gd.buildingsData = make(BuildingDataDict)

	// load map data and information
	if gd.mapData, err = LoadMapData(pkg); err != nil {
		return nil, err
	}
	if gd.mapData.ScaleFactor == 0 {
		return nil, errors.New("'scale_factor' can't be 0")
	}
	// package must contain the path to world matrix bitmap
	fname, ok := gd.mapData.Resources["matrix"]
	if !ok {
		return nil, errors.New("'matrix' field not found in the map asset")
	}
	var worldBmp image.Image
	if worldBmp, err = resource.LoadBitmap(pkg, fname); err == nil {
		if gd.world, err =
			NewWorld(worldBmp, gd.mapData.ScaleFactor); err != nil {
			return nil, err
		}
	}

	// TODO: this map is hard-coded for now, but will be read from resources
	// in the future
	_entityTypes["grunt"] = TankEntity
	_entityTypes["programmer"] = ProgrammerEntity
	_entityTypes["engineer"] = EngineerEntity
	_entityTypes["zombie"] = ZombieEntity
	_entityTypes["barricade"] = BarricadeBuilding
	_entityTypes["mg_turret"] = MgTurretBuilding

	// load entities URI map
	var (
		em *EntitiesData
		t  EntityType
	)
	if em, err = LoadEntitiesData(pkg); err != nil {
		return nil, err
	}
	for name, uri := range em.Entities {
		var entityData EntityData
		err = resource.LoadJSON(pkg, uri, &entityData)
		if err != nil {
			return nil, err
		}
		if t, ok = _entityTypes[name]; !ok {
			return nil, fmt.Errorf("couldn't find type of '%s' entity", name)
		}
		log.WithFields(
			log.Fields{"name": name, "type": t, "data": entityData}).
			Debug("Loaded EntityData")
		gd.entitiesData[t] = &entityData
	}
	for name, uri := range em.Buildings {
		var buildingData BuildingData
		err = resource.LoadJSON(pkg, uri, &buildingData)
		if err != nil {
			return nil, err
		}
		if t, ok = _entityTypes[name]; !ok {
			return nil, fmt.Errorf("couldn't find type of '%s' building", name)
		}
		log.WithFields(log.Fields{"name": name, "type": t, "data": buildingData}).
			Debug("Loaded BuildingData")
		gd.buildingsData[t] = &buildingData
	}
	// finally, validate world
	err = gd.validateWorld(gd.world)
	if err != nil {
		return nil, err
	}
	return gd, nil
}
Пример #3
0
/*
 * LoadMapData loads the map data from the given package.
 *
 * It decodes it into a MapData struct
 */
func LoadMapData(pkg resource.Package) (*MapData, error) {
	md := new(MapData)
	err := resource.LoadJSON(pkg, mapURI, &md)
	return md, err
}