support block state & nbt improvement

level/block/properties.go

@@ -0,0 +1,38 @@
+package block
+
+import (
+	"strconv"
+)
+
+type (
+	Boolean   bool
+	Direction string
+	Integer   int
+)
+
+func (b Boolean) MarshalText() (text []byte, err error) {
+	return []byte(strconv.FormatBool(bool(b))), nil
+}
+
+func (b *Boolean) UnmarshalText(text []byte) (err error) {
+	*((*bool)(b)), err = strconv.ParseBool(string(text))
+	return
+}
+
+func (d Direction) MarshalText() (text []byte, err error) {
+	return []byte(d), nil
+}
+
+func (d *Direction) UnmarshalText(text []byte) error {
+	*d = Direction(text)
+	return nil
+}
+
+func (i Integer) MarshalText() (text []byte, err error) {
+	return []byte(strconv.Itoa(int(i))), nil
+}
+
+func (i *Integer) UnmarshalText(text []byte) (err error) {
+	*((*int)(i)), err = strconv.Atoi(string(text))
+	return
+}