+void Capsule::UpgradeClass() {
+ ++maxClass;
+ ++curClass;
+}
+
+void Capsule::NextClass() {
+ ++curClass;
+ if (curClass >= maxClass) {
+ curClass = 0;
+ }
+}
+
+void Capsule::PreviousClass() {
+ --curClass;
+ if (curClass < 0) {
+ curClass = maxClass - 1;
+ }
+}
+