feat: add method ..Degrees() and ..Uint32() in mesgdefs for convenient

internal/cmd/fitgen/profile/mesgdef/builder.go

@@ -136,6 +136,7 @@ func (b *mesgdefBuilder) Build() ([]builder.Data, error) {
 				InvalidValue:   b.invalidValueOf(field.Type, field.Array),
 				Comment:        field.Comment,
 				Array:          field.Array != "",
+				Units:          field.Units,
 			}
 
 			if _, ok := canExpandMap[field.Name]; ok {
@@ -201,6 +202,9 @@ func (b *mesgdefBuilder) Build() ([]builder.Data, error) {
 				strings.Contains(f.ComparableValue, "unsafe") {
 				imports["unsafe"] = struct{}{}
 			}
+			if f.Units == "semicircles" {
+				imports["github.com/muktihari/fit/kit/semicircles"] = struct{}{}
+			}
 		}
 
 		// Optimize memory usage by aligning the memory in the struct.

internal/cmd/fitgen/profile/mesgdef/data.go

@@ -27,6 +27,7 @@ type Field struct {
 	ComparableValue string
 	InvalidValue    string
 	Comment         string
+	Units           string
 	Scale           float64
 	Offset          float64
 	Array           bool

internal/cmd/fitgen/profile/mesgdef/mesgdef.tmpl

@@ -87,10 +87,10 @@ func (m *{{ .Name }}) ToMesg(options *Options) proto.Message {
 
     fac := options.Factory
 
-    fieldsArray := fieldsPool.Get().(*[256]proto.Field)
-    defer fieldsPool.Put(fieldsArray)
+    arr := pool.Get().(*[256]proto.Field)
+    defer pool.Put(arr)
 
-    fields := (*fieldsArray)[:0] // Create slice from array with zero len.
+    fields := arr[:0] // Create slice from array with zero len.
     mesg := proto.Message{ Num: typedef.MesgNum{{ .Name }} }
 
     {{ range .Fields -}}
@@ -114,6 +114,13 @@ func (m *{{ .Name }}) ToMesg(options *Options) proto.Message {
 	return mesg
 }
 
+{{ range .Fields -}}
+{{ if eq .Type "time.Time" }}
+// {{ .Name }}Uint32 returns {{ .Name }} in uint32 (seconds since FIT's epoch) instead of time.Time.
+func (m *{{ $.Name }}) {{ .Name }}Uint32() uint32 { return datetime.ToUint32(m.{{ .Name }}) }
+{{ end }}
+{{ end }}
+
 {{ range .Fields -}}
 {{ if not (and (eq .Scale 1.0) (eq .Offset 0.0)) }}
 // {{ .Name }}Scaled return {{ .Name }} in its scaled value [{{ .Comment }}].
@@ -130,6 +137,14 @@ func (m *{{ $.Name }}) {{ .Name }}Scaled() {{ if eq .Array true }} []float64 {{
 {{ end }}
 {{ end }}
 
+
+{{ range .Fields -}}
+{{ if eq .Units "semicircles" }}
+// {{ .Name }}Degrees returns {{ .Name }} in degrees instead of semicircles.
+func (m *{{ $.Name }}) {{ .Name }}Degrees() float64 { return semicircles.ToDegrees(m.{{ .Name }}) }
+{{ end }}
+{{ end }}
+
 {{ range .Fields -}}
 // Set{{ .Name }} sets {{ $.Name }} value.
 //