51 lines
1 KiB
Go
51 lines
1 KiB
Go
package pixclient
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import (
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"net"
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"strconv"
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)
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type Client struct {
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connection net.Conn
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}
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func Init(addr net.IP, port int) *Client {
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var client Client
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connection, err := net.Dial("tcp", addr.String()+":"+strconv.Itoa(port))
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client.connection = connection
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check(err)
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return &client
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}
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func (Client *Client) WritePixel(x, y int, r, g, b, a byte) {
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var bytes []byte
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bytes = append(appendTwoDigitHex(appendTwoDigitHex(appendTwoDigitHex(appendTwoDigitHex(append(append(append(append(append(
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bytes, []byte("PX ")...),
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[]byte(strconv.FormatInt(int64(x), 10))...),
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[]byte(" ")...),
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[]byte(strconv.FormatInt(int64(y), 10))...),
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[]byte(" ")...),
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r),
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g),
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b),
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a),
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[]byte("\n")...)
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Client.connection.Write(bytes)
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//
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//Client.connection.Write([]byte(
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// fmt.Sprintf("PX %d %d %X\n", x, y, []byte{r, g, b, a})))
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}
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func appendTwoDigitHex(bytes []byte, val byte) []byte {
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if val < 0x10 {
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bytes = append(bytes, []byte("0")...)
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}
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return strconv.AppendInt(bytes, int64(val), 16)
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}
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func check(e error) {
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if e != nil {
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panic(e)
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}
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}
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