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Fixed Chat Calc

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This commit is contained in:
Hedzer Kuijlman
2025-04-22 16:34:22 +02:00
parent f994e8cc11
commit 49ee0c503f
2 changed files with 55 additions and 45 deletions
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48
src/main/java/wtf/hak/survivalfabric/mixin/PlayerManagerMixin.java
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@ -15,6 +15,7 @@ import org.spongepowered.asm.mixin.injection.ModifyArg;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
import wtf.hak.survivalfabric.commands.SpectatorCommand;
import wtf.hak.survivalfabric.config.ConfigManager;
import wtf.hak.survivalfabric.utils.MathUtils;
import java.util.Set;
@ -56,10 +57,10 @@ public abstract class PlayerManagerMixin {
String processedMessage = rawMessage;
if (isCalcEnabled) {
if (isCalcEnabled && MathUtils.hasSupportedOperator(rawMessage)) {
String expression = rawMessage.endsWith("=") ? rawMessage.substring(0, rawMessage.length() - 1).trim() : rawMessage;
try {
String result = String.valueOf(evaluateExpression(expression));
String result = String.valueOf(MathUtils.evaluateExpression(expression));
StringBuilder sb = new StringBuilder(rawMessage).append("§6");
if (rawMessage.contains(" ")) sb.append(" ");
@ -83,47 +84,4 @@ public abstract class PlayerManagerMixin {
}
}
private double evaluateExpression(String expression) {
return evaluate(expression.replaceAll("\\s", ""), new int[]{0});
}
private double evaluate(String expr, int[] index) {
double value = parseTerm(expr, index);
while (index[0] < expr.length()) {
char op = expr.charAt(index[0]);
if (op != '+' && op != '-') break;
index[0]++;
double nextTerm = parseTerm(expr, index);
value = (op == '+') ? value + nextTerm : value - nextTerm;
}
return value;
}
private double parseTerm(String expr, int[] index) {
double value = parseFactor(expr, index);
while (index[0] < expr.length()) {
char op = expr.charAt(index[0]);
if (op != '*' && op != '/') break;
index[0]++;
double nextFactor = parseFactor(expr, index);
value = (op == '*') ? value * nextFactor : value / nextFactor;
}
return value;
}
private double parseFactor(String expr, int[] index) {
if (expr.charAt(index[0]) == '(') {
index[0]++;
double value = evaluate(expr, index);
index[0]++; // Skip closing ')'
return value;
}
int start = index[0];
while (index[0] < expr.length() && (Character.isDigit(expr.charAt(index[0])) || expr.charAt(index[0]) == '.')) {
index[0]++;
}
return Double.parseDouble(expr.substring(start, index[0]));
}
}

52
src/main/java/wtf/hak/survivalfabric/utils/MathUtils.java Normal file
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@ -0,0 +1,52 @@
package wtf.hak.survivalfabric.utils;
public class MathUtils {
public static boolean hasSupportedOperator(String msg) {
return msg.contains("+") || msg.contains("-") || msg.contains("*") || msg.contains("/");
}
public static double evaluateExpression(String expression) {
return evaluate(expression.replaceAll("\\s", ""), new int[]{0});
}
public static double evaluate(String expr, int[] index) {
double value = parseTerm(expr, index);
while (index[0] < expr.length()) {
char op = expr.charAt(index[0]);
if (op != '+' && op != '-') break;
index[0]++;
double nextTerm = parseTerm(expr, index);
value = (op == '+') ? value + nextTerm : value - nextTerm;
}
return value;
}
public static double parseTerm(String expr, int[] index) {
double value = parseFactor(expr, index);
while (index[0] < expr.length()) {
char op = expr.charAt(index[0]);
if (op != '*' && op != '/') break;
index[0]++;
double nextFactor = parseFactor(expr, index);
value = (op == '*') ? value * nextFactor : value / nextFactor;
}
return value;
}
public static double parseFactor(String expr, int[] index) {
if (expr.charAt(index[0]) == '(') {
index[0]++;
double value = evaluate(expr, index);
index[0]++; // Skip closing ')'
return value;
}
int start = index[0];
while (index[0] < expr.length() && (Character.isDigit(expr.charAt(index[0])) || expr.charAt(index[0]) == '.')) {
index[0]++;
}
return Double.parseDouble(expr.substring(start, index[0]));
}
}