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package io.github.moulberry.notenoughupdates.envcheck;
import javax.swing.*;
import java.lang.reflect.Field;
import java.util.Objects;
public class EnvironmentScan {
static Class<?> tryGetClass(String name) {
try {
return Class.forName(name);
} catch (ClassNotFoundException e) {
return null;
}
}
static Object tryGetField(Class<?> clazz, Object inst, String name) {
if (clazz == null) return null;
try {
Field declaredField = clazz.getDeclaredField(name);
return declaredField.get(inst);
} catch (NoSuchFieldException | IllegalAccessException ignored) {
}
return null;
}
static boolean isAtLeast(Object left, int right) {
if (left instanceof Integer) {
return (Integer) left >= right;
}
return false;
}
static boolean shouldCheckOnce = true;
public static void checkEnvironmentOnce() {
if (shouldCheckOnce) checkEnvironment();
}
static void checkEnvironment() {
shouldCheckOnce = false;
checkForgeEnvironment();
}
static void checkForgeEnvironment() {
Class<?> forgeVersion = tryGetClass("net.minecraftforge.common.ForgeVersion");
if (forgeVersion == null
|| !Objects.equals(tryGetField(forgeVersion, null, "majorVersion"), 11)
|| !Objects.equals(tryGetField(forgeVersion, null, "minorVersion"), 15)
|| !isAtLeast(tryGetField(forgeVersion, null, "revisionVersion"), 1)
|| !Objects.equals(tryGetField(forgeVersion, null, "mcVersion"), "1.8.9")
) {
System.out.printf("Forge Version : %s%nMajor : %s%nMinor : %s%nRevision : %s%nMinecraft : %s%n",
forgeVersion,
tryGetField(forgeVersion, null, "majorVersion"),
tryGetField(forgeVersion, null, "minorVersion"),
tryGetField(forgeVersion, null, "revisionVersion"),
tryGetField(forgeVersion, null, "mcVersion")
);
missingOrOutdatedForgeError();
}
}
static void missingOrOutdatedForgeError() {
showErrorMessage(
"You just launched NotEnoughUpdates with the wrong (or no) modloader installed.",
"",
"NotEnoughUpdates only works in Minecraft 1.8.9, with Forge 11.15.1+",
"Please relaunch NotEnoughUpdates in the correct environment.",
"If you are using Minecraft 1.8.9 with Forge 11.15.1+ installed, please contact support.",
"Click OK to launch anyways."
);
}
public static void showErrorMessage(String... messages) {
String message = String.join("\n", messages);
System.setProperty("java.awt.headless", "false");
JOptionPane.showMessageDialog(
null, message, "NotEnoughUpdates - Problematic System Configuration", JOptionPane.ERROR_MESSAGE
);
}
}
|
