Menu description pt. 1

1 files changed, 78 insertions, 0 deletions

diff --git a/engine/Dynamic/Descriptors/Style.go b/engine/Dynamic/Descriptors/Style.go
new file mode 100644
index 0000000..b7b9510
--- /dev/null
+++ b/engine/Dynamic/Descriptors/Style.go
@@ -0,0 +1,78 @@
+package descriptors
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/gookit/color"
+
+	ui "github.com/DegustatorPonos/RuinesOfRafdolon/UI"
+	rl "github.com/gen2brain/raylib-go/raylib"
+)
+
+// Using this method instead of the base style structs allows us to use
+// hex values as colours since golang's implimetation of JSON deserializer
+// doesn't really like color.RGBA
+type StyleDescriptor struct {
+	BackgroundColor string
+	FontColor string
+	Padding *float32
+	Roundness *float32
+}
+
+func (base *StyleDescriptor) Parse() ui.Style {
+	var outp = ui.Style {
+		BacgroundColor: base.getBackgroundColor(),
+		FontColor: base.getFontColor(),
+		Roundness: base.Roundness,
+		Padding: base.Padding,
+	}
+	return outp
+}
+
+func (base *StyleDescriptor) getBackgroundColor() *rl.Color {
+	if len(base.BackgroundColor) == 0 {
+		return nil
+	}
+	var outp, err = parseColor(base.BackgroundColor)
+	if err != nil {
+		rl.TraceLog(rl.LogWarning, "Failed to parse the background color %s in style: %s", base.BackgroundColor, err.Error())
+		return nil
+	}
+	return outp
+}
+
+func (base *StyleDescriptor) getFontColor() *rl.Color {
+	if len(base.FontColor) == 0 {
+		return nil
+	}
+	var outp, err = parseColor(base.FontColor)
+	if err != nil {
+		rl.TraceLog(rl.LogWarning, "Failed to parse the font color %s in style: %s", base.FontColor, err.Error())
+		return nil
+	}
+	return outp
+}
+
+func parseColor(val string) (*rl.Color, error) {
+	val = strings.TrimPrefix(val, "#")
+	if !isColorValid(val) {
+		return nil, fmt.Errorf("Invalid color notation") 
+	}
+	var parsed = color.HEX(val)
+	var outp = rl.NewColor(parsed[0], parsed[1], parsed[2], parsed[3])
+	// If there is no alpha cahnnel
+	if len(val) % 2 == 0 {
+		outp.A = 0xFF
+	}
+	return &outp, nil
+}
+
+func isColorValid(val string) bool {
+	switch len(val) {
+	// #RGB, #RGBA, #RRGGBB, #RRGGBBAA
+	case 3, 4, 6, 8:
+		return true
+	}
+	return false
+}