docs & feat: add license & attribution notice (Apache-2.0 / GPL-3.0) and core system enhancements

internal/common/warp_mode.go

@@ -0,0 +1,25 @@
+package common
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+func ReadWarpUnlockMode() (*int, error) {
+	root, err := readCurrencyWarsPersistentRoot()
+	if err != nil {
+		return nil, err
+	}
+	raw, ok := root["warp_unlock_mode"]
+	if !ok {
+		return nil, nil
+	}
+	var mode int
+	if err := json.Unmarshal(raw, &mode); err != nil {
+		return nil, err
+	}
+	if mode < 0 || mode > 3 {
+		return nil, fmt.Errorf("invalid saved Warp visibility mode")
+	}
+	return &mode, nil
+}