87 lines
1.9 KiB
Go
87 lines
1.9 KiB
Go
package roll
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import (
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"fmt"
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"regexp"
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"strconv"
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"time"
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"git.lxtend.com/qqbot/constants"
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"git.lxtend.com/qqbot/handler"
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"git.lxtend.com/qqbot/model"
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"golang.org/x/exp/rand"
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)
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func init() {
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handler.RegisterHandler("roll", roll, constants.LEVEL_USER)
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handler.RegisterHelpInform("roll [次数]d[面数]", "roll", "掷骰")
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}
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func roll(msg model.Message) (reply model.Reply) {
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act, err := ParseRollExpression(msg.RawMsg)
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if err != nil {
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return model.Reply{
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ReplyMsg: "",
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ReferOriginMsg: false,
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FromMsg: msg,
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}
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}
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result, results := RollDice(act)
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return model.Reply{
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ReplyMsg: "掷骰结果: " + strconv.Itoa(result) + "点 " + fmt.Sprint(results),
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ReferOriginMsg: true,
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FromMsg: msg,
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}
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}
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// RollExpression 解析结果的结构体
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type RollExpression struct {
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Times int // 掷骰次数
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Sides int // 骰子面数
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}
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// ParseRollExpression 解析骰子表达式，例如 "3d6" 或 "1d20"
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func ParseRollExpression(input string) (*RollExpression, error) {
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// 匹配类似 "3d6" 或 "1d20" 的表达式
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re := regexp.MustCompile(`(\d*)d(\d+)$`)
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matches := re.FindStringSubmatch(input)
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if len(matches) != 3 {
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return nil, fmt.Errorf("invalid roll expression: %s", input)
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}
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// 如果次数为空，默认为 1
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times := 1
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if matches[1] != "" {
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t, err := strconv.Atoi(matches[1])
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if err != nil {
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return nil, err
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}
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times = t
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}
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// 将面数转换为整数
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sides, err := strconv.Atoi(matches[2])
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if err != nil {
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return nil, err
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}
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return &RollExpression{Times: times, Sides: sides}, nil
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}
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func RollDice(expr *RollExpression) (int, []int) {
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rand.Seed(uint64(time.Now().UnixNano())) // 初始化随机种子
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results := make([]int, expr.Times)
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total := 0
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// 每次掷骰，并累加总和
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for i := 0; i < expr.Times; i++ {
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result := rand.Intn(expr.Sides) + 1 // 随机生成 1 到 Sides 的值
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results[i] = result
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total += result
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}
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return total, results
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}
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