118 lines
2.6 KiB
Go
118 lines
2.6 KiB
Go
package chat
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import (
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"encoding/json"
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"fmt"
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"io"
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"strings"
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"github.com/Tnze/go-mc/data"
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pk "github.com/Tnze/go-mc/net/packet"
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)
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//Message is a message sent by other
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type Message jsonChat
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type jsonChat struct {
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Text string `json:"text"`
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Bold bool `json:"bold"` //粗体
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Italic bool `json:"Italic"` //斜体
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UnderLined bool `json:"underlined"` //下划线
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StrikeThrough bool `json:"strikethrough"` //删除线
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Obfuscated bool `json:"obfuscated"` //随机
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Color string `json:"color"`
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Translate string `json:"translate"`
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With []json.RawMessage `json:"with"` // How can go handle an JSON array with Object and String?
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Extra []jsonChat `json:"extra"`
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}
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//UnmarshalJSON decode json to Message
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func (m *Message) UnmarshalJSON(jsonMsg []byte) (err error) {
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if jsonMsg[0] == '"' {
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err = json.Unmarshal(jsonMsg, &m.Text)
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} else {
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err = json.Unmarshal(jsonMsg, (*jsonChat)(m))
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}
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return
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}
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//Decode a ChatMsg packet
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func (m *Message) Decode(r pk.ComByteReader) error {
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var Len pk.VarInt
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if err := Len.Decode(r); err != nil {
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return err
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}
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return json.NewDecoder(io.LimitReader(r, int64(Len))).Decode(m)
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}
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var colors = map[string]int{
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"black": 30,
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"dark_blue": 34,
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"dark_green": 32,
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"dark_aqua": 36,
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"dark_red": 31,
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"dark_purple": 35,
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"gold": 33,
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"gray": 37,
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"dark_gray": 90,
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"blue": 94,
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"green": 92,
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"aqua": 96,
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"red": 91,
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"light_purple": 95,
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"yellow": 93,
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"white": 97,
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}
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// String return the message with escape sequence for ansi color.
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// On windows, you may want print this string using
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// github.com/mattn/go-colorable.
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func (m Message) String() string {
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var msg, format strings.Builder
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if m.Bold {
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format.WriteString("1;")
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}
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if m.Italic {
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format.WriteString("3;")
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}
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if m.UnderLined {
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format.WriteString("4;")
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}
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if m.StrikeThrough {
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format.WriteString("9;")
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}
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if m.Color != "" {
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fmt.Fprintf(&format, "%d;", colors[m.Color])
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}
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if format.Len() > 0 {
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msg.WriteString("\033[" + format.String()[:format.Len()-1] + "m")
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}
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msg.WriteString(m.Text)
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if format.Len() > 0 {
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msg.WriteString("\033[0m")
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}
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//handle translate
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if m.Translate != "" {
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args := make([]interface{}, len(m.With))
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for i, v := range m.With {
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var arg Message
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arg.UnmarshalJSON(v) //ignore error
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args[i] = arg
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}
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fmt.Fprintf(&msg, data.EnUs[m.Translate], args...)
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}
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if m.Extra != nil {
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for i := range m.Extra {
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msg.WriteString(Message(m.Extra[i]).String())
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}
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}
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return msg.String()
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}
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