1 files changed, 100 insertions, 0 deletions
diff --git a/go/assets/retrieve.go b/go/assets/retrieve.go
new file mode 100644
index 00000000..d9b40643
--- /dev/null
+++ b/go/assets/retrieve.go
@@ -0,0 +1,100 @@
+package assets
+
+import (
+	"image/color"
+	"image/png"
+	"log"
+	"net/http"
+	"path"
+	"strings"
+
+	"github.com/hajimehoshi/ebiten/v2"
+	"github.com/hajimehoshi/ebiten/v2/text"
+
+	"muhq.space/muhqs-game/go/font"
+)
+
+const (
+	PROTOCOL        string = "http://"
+	BASE_URL        string = "localhost:8000/"
+	IMAGE_URL_PART  string = "html/build/latex-build"
+	TILE_URL_PART   string = "assets/tiles"
+	SYMBOL_URL_PART string = "assets/symbols/40x40"
+)
+
+func retrieveAsset(path string) *ebiten.Image {
+	log.Printf("loading %s\n", path)
+	resp, err := http.Get(PROTOCOL + path)
+	if err != nil {
+		log.Println(err)
+		return nil
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil
+	}
+
+	img, err := png.Decode(resp.Body)
+	if err != nil {
+		log.Fatal("decoding ", err)
+	}
+	return ebiten.NewImageFromImage(img)
+}
+
+var cards = map[string]map[string]map[string]*ebiten.Image{}
+
+func GetCard(cardPath string, language string) *ebiten.Image {
+	card := path.Base(cardPath)
+	set := path.Dir(cardPath)
+	img, found := cards[language][set][card]
+	if !found {
+		url := path.Join(BASE_URL, IMAGE_URL_PART, language, cardPath+".png")
+		img = retrieveAsset(url)
+
+		if cards[language] == nil {
+			cards[language] = map[string]map[string]*ebiten.Image{}
+		}
+
+		if cards[language][set] == nil {
+			cards[language][set] = map[string]*ebiten.Image{}
+		}
+
+		cards[language][set][card] = img
+	}
+	return img
+}
+
+var tiles = map[string]*ebiten.Image{}
+
+func GetTile(tile string) *ebiten.Image {
+	img, found := tiles[tile]
+	if !found {
+		url := path.Join(BASE_URL, TILE_URL_PART, strings.Replace(tile, " ", "_", -1)+".png")
+		img = retrieveAsset(url)
+		tiles[tile] = img
+	}
+	return img
+}
+
+var symbols = map[string]*ebiten.Image{}
+
+func GetSymbol(symbol string) *ebiten.Image {
+	img, found := symbols[symbol]
+	if !found {
+		url := path.Join(BASE_URL, SYMBOL_URL_PART, symbol+".png")
+		img = retrieveAsset(url)
+		symbols[symbol] = img
+	}
+	return img
+}
+
+func GetGenericSymbol(symbol string) *ebiten.Image {
+	img, found := symbols[symbol]
+	if !found {
+		genericBase := GetSymbol("generic_base")
+		img = ebiten.NewImageFromImage(genericBase)
+		text.Draw(img, symbol, font.Font24, 5, 27, color.Black)
+	}
+	return img
+}