Make a start on font rendering

I was hopeful I could use ebiten/text, but font.Face doesn't seem set
up for fixed-colour fonts.

internal/menus/menus.go

@@ -2,11 +2,14 @@ package menus
 
 import (
 	"fmt"
+	"image/color"
 	"io/ioutil"
+	"log"
 	"path/filepath"
 	"strconv"
 	"strings"
 
+	"code.ur.gs/lupine/ordoor/internal/data"
 	"code.ur.gs/lupine/ordoor/internal/util/asciiscan"
 )
 
@@ -93,6 +96,9 @@ type Menu struct {
 	ObjectFiles []string
 	FontNames   []string
 
+	BackgroundColor color.Color
+	HypertextColor  color.Color
+
 	// FIXME: turn these into first-class data
 	Properties map[string]string
 
@@ -146,7 +152,23 @@ func LoadMenu(filename string) (*Menu, error) {
 			out.ObjectFiles = append(out.ObjectFiles, str)
 		case 1: // List of properties
 			k, v := asciiscan.ConsumeProperty(str)
-			out.Properties[k] = v
+			vInt, err := strconv.Atoi(v) // FIXME:
+			switch k {
+			case "BACKGROUND COLOR 0..255..-1 trans":
+				if err != nil {
+					return nil, err
+				}
+
+				out.BackgroundColor = data.ColorPalette[vInt]
+			case "HYPERTEXT COLOR 0..255":
+				if err != nil {
+					return nil, err
+				}
+
+				out.HypertextColor = data.ColorPalette[vInt]
+			default:
+				out.Properties[k] = v
+			}
 		case 2: // list of fonts
 			// FIXME: do we need to do something cleverer here?
 			if str == "NULL" {
@@ -170,6 +192,8 @@ func LoadMenu(filename string) (*Menu, error) {
 		}
 	}
 
+	log.Printf("Menu properties: %#+v", out.Properties)
+
 	return out, nil
 }