ErrorHandler

src/yugecin/opsudance/utils/CachedVariable.java

@@ -0,0 +1,41 @@
+/*
+ * opsu!dance - fork of opsu! with cursordance auto
+ * Copyright (C) 2017 yugecin
+ *
+ * opsu!dance is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * opsu!dance is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with opsu!dance.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package yugecin.opsudance.utils;
+
+public class CachedVariable<T> {
+
+	private T value;
+	private Getter<T> getter;
+
+	public CachedVariable(Getter<T> getter) {
+		this.getter = getter;
+	}
+
+	public T get() {
+		if (getter != null) {
+			value = getter.get();
+			getter = null;
+		}
+		return value;
+	}
+
+	public interface Getter<T> {
+		T get();
+	}
+
+}

src/yugecin/opsudance/utils/MiscUtils.java

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+/*
+ * opsu!dance - fork of opsu! with cursordance auto
+ * Copyright (C) 2017 yugecin
+ *
+ * opsu!dance is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * opsu!dance is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with opsu!dance.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package yugecin.opsudance.utils;
+
+import itdelatrisu.opsu.Options;
+import org.newdawn.slick.util.Log;
+import org.newdawn.slick.util.ResourceLoader;
+
+import java.io.IOException;
+import java.util.Properties;
+
+public class MiscUtils {
+
+	public static final CachedVariable<Properties> buildProperties = new CachedVariable<>(new CachedVariable.Getter<Properties>() {
+		@Override
+		public Properties get() {
+			Properties props = new Properties();
+			try {
+				props.load(ResourceLoader.getResourceAsStream(Options.VERSION_FILE));
+			} catch (IOException e) {
+				Log.error("Could not read version file", e);
+			}
+			return props;
+		}
+	});
+
+}