Add item DataComponent implements (part 3)

level/component/mappostprogressing.go

@@ -0,0 +1,31 @@
+package component
+
+import (
+	"io"
+
+	pk "github.com/Tnze/go-mc/net/packet"
+)
+
+var _ DataComponent = (*MapPostProcessing)(nil)
+
+type MapPostProcessing int32
+
+const (
+	Lock MapPostProcessing = iota
+	Scale
+)
+
+// ID implements DataComponent.
+func (MapPostProcessing) ID() string {
+	return "minecraft:map_post_processing"
+}
+
+// ReadFrom implements DataComponent.
+func (m *MapPostProcessing) ReadFrom(r io.Reader) (n int64, err error) {
+	return (*pk.VarInt)(m).ReadFrom(r)
+}
+
+// WriteTo implements DataComponent.
+func (m *MapPostProcessing) WriteTo(w io.Writer) (n int64, err error) {
+	return (*pk.VarInt)(m).WriteTo(w)
+}