// parseJSONPos
// loadJSONRecursive runs down the hierarchy in the JSON file
func loadJSONRecursive(am *assetmanager.AssetManager, node map[string]interface{}, filename string, entityByID map[string]*Entity) *Entity {
var id string
var idOK, ok bool
var childEntity *Entity
entity := NewEntity(nil)
// Do this first to help with error messaging
id, idOK = node["Id"].(string)
if idOK {
entity.ID = id
if entityByID != nil {
entityByID[id] = entity
}
} else {
id = "[No ID]"
}
// Do these first since X and Y might depend on them:
_, ok = node["W"].(string)
if ok {
entity.W = am.ParseDimension(filename, id, "W", node)
}
_, ok = node["H"].(string)
if ok {
entity.H = am.ParseDimension(filename, id, "H", node)
}
assetName, ok := node["Asset"].(string)
if ok {
entity.Surface = am.Surfaces[assetName]
entity.W = entity.Surface.W
entity.H = entity.Surface.H
}
// Now do the rest of the properties
for k, v := range node {
switch k {
case "Id", "W", "H", "Asset":
// do nothing; handled above
case "X":
entity.X = am.ParsePosition(filename, id, entity.W, "X", node)
case "Y":
entity.Y = am.ParsePosition(filename, id, entity.H, "Y", node)
case "Visible":
entity.Visible = v.(bool)
case "Children":
for _, child := range v.([]interface{}) {
childEntity = loadJSONRecursive(am, child.(map[string]interface{}), filename, entityByID)
entity.AddChild(childEntity)
}
default:
panic(fmt.Sprintf("scenegraph.LoadJSON: unrecognized key: %s", k))
}
}
return entity
}
