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Updated colored string wrapping
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@SkytAsul
SkytAsul committed May 23, 2022
1 parent 05da072 commit 5dabd93
Showing 1 changed file with 125 additions and 106 deletions.
231 changes: 125 additions & 106 deletions core/src/main/java/fr/skytasul/quests/utils/ChatUtils.java
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Original file line number Diff line number Diff line change
Expand Up @@ -14,21 +14,22 @@ public class ChatUtils {

// For testing purposes
public static void main(String[] args) {
test("Hello there, it's me", 12, 15, "Hello there,", "it's me");
test("§aHello there, it's me", 12, 15, "§aHello there,", "§ait's me");
test("§aHello §cthere, it's me", 12, 16, "§aHello §cthere,", "§cit's me");
test("§aHello §cthere, it's me", 13, 17, "§aHello §cthere,", "§cit's me");
test("§aHello §lthere, it's me", 12, 16, "§aHello §lthere,", "§a§lit's me");
test("§aHello §c§lthere, it's me", 12, 16, "§aHello", "§c§lthere, it's", "§c§lme");
test("§aHello §c§a§o§c§lthere, it's me", 12, 16, "§aHello", "§c§lthere, it's", "§c§lme");
test("§aHello §x§1§1§1§1§1§2there, it's me", 12, 30, "§aHello §x§1§1§1§1§1§2there,", "§x§1§1§1§1§1§2it's me");
test("§aHello §x§1§1§1§1§1§2there, it's me", 12, 14, "§aHello there,", "it's me");
test("§aHello §x§1§1§1§1§1§2there, it's me", 12, 12, "§aHello", "§athere,", "it's me");
test("§aHello §x§1§1§1§1§1§2§lthere, it's me", 12, 30, "§aHello §x§1§1§1§1§1§2§lthere,", "§x§1§1§1§1§1§2§lit's me");
test("§aHello §x§1§1§1§1§1§2the§lre, it's me", 12, 30, "§aHello §x§1§1§1§1§1§2the§lre,", "§x§1§1§1§1§1§2§lit's me");
test("§aHello §x§1§1§1§1§1§2there, §lit's me, owo §ofellas §nowo", 26, 100, "§aHello §x§1§1§1§1§1§2there, §lit's me, owo", "§x§1§1§1§1§1§2§l§ofellas §nowo");
test("1 §x§B§B§E§E§D§DHello there, §lhow are you, fellow §ostranger§x§B§B§E§E§D§D?", 40, 100, "1 §x§B§B§E§E§D§DHello there, §lhow are you, fellow", "§x§B§B§E§E§D§D§l§ostranger§x§B§B§E§E§D§D?");
test("§aHello, thisisaverylongword and thisisa§lverylongword", 10, 25, "§aHello,", "§athisisaver", "§aylongword", "§aand");
//test("Hello there, it's me", 12, 15, "Hello there,", "it's me");
//test("§aHello there, it's me", 12, 15, "§aHello there,", "§ait's me");
//test("§aHello §cthere, it's me", 12, 16, "§aHello §cthere,", "§cit's me");
//test("§aHello §cthere, it's me", 13, 17, "§aHello §cthere,", "§cit's me");
//test("§aHello §lthere, it's me", 12, 16, "§aHello §lthere,", "§a§lit's me");
//test("§aHello §c§lthere, it's me", 12, 16, "§aHello", "§c§lthere, it's", "§c§lme");
//test("§aHello §c§a§o§c§lthere, it's me", 12, 16, "§aHello", "§c§lthere, it's", "§c§lme");
//test("§aHello §x§1§1§1§1§1§2there, it's me", 12, 30, "§aHello §x§1§1§1§1§1§2there,", "§x§1§1§1§1§1§2it's me");
//test("§aHello §x§1§1§1§1§1§2there, it's me", 12, 14, "§aHello there,", "it's me");
//test("§aHello §x§1§1§1§1§1§2there, it's me", 12, 12, "§aHello", "§athere,", "it's me");
//test("§aHello §x§1§1§1§1§1§2§lthere, it's me", 12, 30, "§aHello §x§1§1§1§1§1§2§lthere,", "§x§1§1§1§1§1§2§lit's me");
//test("§aHello §x§1§1§1§1§1§2the§lre, it's me", 12, 30, "§aHello §x§1§1§1§1§1§2the§lre,", "§x§1§1§1§1§1§2§lit's me");
//test("§aHello §x§1§1§1§1§1§2there, §lit's me, owo §ofellas §nowo", 26, 100, "§aHello §x§1§1§1§1§1§2there, §lit's me, owo", "§x§1§1§1§1§1§2§l§ofellas §nowo");
//test("1 §x§B§B§E§E§D§DHello there, §lhow are you, fellow §ostranger§x§B§B§E§E§D§D?", 40, 100, "1 §x§B§B§E§E§D§DHello there, §lhow are you, fellow", "§x§B§B§E§E§D§D§l§ostranger§x§B§B§E§E§D§D?");
//test("§aHello, thisisaverylongword and thisisa§lverylongword", 10, 25, "§aHello,", "§athisisaver", "§aylongword", "§aand");
//test("§bVery_much_§along_word_§dwith_colors_§cinside_and_useless_words_after", 20, 50);
}

private static int testID = 0;
Expand Down Expand Up @@ -80,107 +81,113 @@ public static List<String> wordWrap(String rawString, int maxLineLength, int cri
return Arrays.asList(rawString);
}

char[] rawChars = (rawString + ' ').toCharArray(); // add a trailing space to trigger pagination
StringBuilder word = new StringBuilder();
StringBuilder line = new StringBuilder(maxLineLength);
String colorsWord = "";
String colors = "";
boolean first = false;
List<String> lines = new LinkedList<>();
int wordLength = 0;
int lineLength = 0;

for (int i = 0; i < rawChars.length; i++) {
char c = rawChars[i];
try {
char[] rawChars = (rawString + ' ').toCharArray(); // add a trailing space to trigger pagination
StringBuilder word = new StringBuilder();
StringBuilder line = new StringBuilder(maxLineLength);
String colorsWord = "";
String colors = "";
boolean first = false;
List<String> lines = new LinkedList<>();
int wordLength = 0;
int lineLength = 0;

// skip chat color modifiers
if (c == ChatColor.COLOR_CHAR) {
Matcher matcher = START_WITH_COLORS.matcher(rawString.substring(i));
if (matcher.find()) {
String rawColors = matcher.group();
String oldColors = colors;
colors = appendRawColorString(colors, rawColors);
String toAdd = getColorDifference(oldColors, colors);
//System.out.println("new colors: " + colors + " | to add: " + toAdd);

if (colors.length() >= criticalLineLength) { // weird case : the formatting and word is longer than a line
colors = "";
for (int i = 0; i < rawChars.length; i++) {
char c = rawChars[i];

// skip chat color modifiers
if (c == ChatColor.COLOR_CHAR) {
Matcher matcher = START_WITH_COLORS.matcher(rawString.substring(i));
if (matcher.find()) {
String rawColors = matcher.group();
String oldColors = colors;
colors = appendRawColorString(colors, rawColors);
String toAdd = getColorDifference(oldColors, colors);
//System.out.println("new colors: " + colors + " | to add: " + toAdd);

if (colors.length() >= criticalLineLength) { // weird case : the formatting and word is longer than a line
colors = "";
}else {
word.append(toAdd);
}
i += rawColors.length() - 1; // eat all color characters minus 1 (first § already processed)
}else {
word.append(toAdd);
word.append(c); // unknown color code: we copy it
}
i += rawColors.length() - 1; // eat all color characters minus 1 (first § already processed)
}else {
word.append(c); // unknown color code: we copy it
}
}else if (c == ' ' || c == '\n') {
if (lineLength == 0 && (wordLength > maxLineLength || word.length() > criticalLineLength)) { // special case: extremely long word begins a line
//System.out.println("long word : " + word);
lines.addAll(splitColoredString(word.toString(), wordLength, maxLineLength, criticalLineLength, colorsWord));
}else {
int totalLength = (lineLength == 0 ? 0 : lineLength + 1) + wordLength;
int totalLengthC = (lineLength == 0 ? 0 : line.length() + 1) + word.length();
//System.out.println("so far: " + line.toString() + " | " + word.toString() + " | total length " + totalLength + " | total COMPLETE " + totalLengthC);
if ((totalLength == maxLineLength && totalLengthC <= criticalLineLength) || (totalLengthC == criticalLineLength && totalLength <= maxLineLength)) { // Line exactly the correct length...newline
if (lineLength > 0) line.append(' ');
line.append(word);
lines.add(line.toString());
//System.out.println("append exact " + line.toString());
line = new StringBuilder(maxLineLength);
lineLength = 0;
first = true;
}else if (totalLength > maxLineLength || totalLengthC > criticalLineLength) { // Line too long...break the line
//System.out.println("too long " + line.toString() + " | plus : " + word.toString());
//System.out.println("linelength: " + lineLength + " | wordlength: " + wordLength);
lines.add(line.toString());
if (word.length() >= maxLineLength || word.length() >= criticalLineLength) {
//System.out.println("entire word too long. split: " + word.toString() + " length " + wordLength + " colors " + colorsWord);
lines.addAll(splitColoredString(word.toString(), wordLength, maxLineLength, criticalLineLength, colorsWord));
lineLength = 0;
}else if (c == ' ' || c == '\n') {
if (lineLength == 0 && (wordLength > maxLineLength || word.length() > criticalLineLength)) { // special case: extremely long word begins a line
//System.out.println("long word : " + word);
lines.addAll(splitColoredWord(word.toString(), wordLength, maxLineLength, criticalLineLength, colorsWord));
}else {
int totalLength = (lineLength == 0 ? 0 : lineLength + 1) + wordLength;
int totalLengthC = (lineLength == 0 ? 0 : line.length() + 1) + word.length();
//System.out.println("so far: " + line.toString() + " | " + word.toString() + " | total length " + totalLength + " | total COMPLETE " + totalLengthC);
if ((totalLength == maxLineLength && totalLengthC <= criticalLineLength) || (totalLengthC == criticalLineLength && totalLength <= maxLineLength)) { // Line exactly the correct length...newline
if (lineLength > 0) line.append(' ');
line.append(word);
lines.add(line.toString());
//System.out.println("append exact " + line.toString());
line = new StringBuilder(maxLineLength);
lineLength = 0;
first = true;
}else if (totalLength > maxLineLength || totalLengthC > criticalLineLength) { // Line too long...break the line
//System.out.println("too long " + line.toString() + " | plus : " + word.toString() + " | linelength: " + lineLength + " | wordlength: " + wordLength);
lines.add(line.toString());
if (word.length() >= maxLineLength || word.length() >= criticalLineLength) {
//System.out.println("entire word too long. split: " + word.toString() + " length " + wordLength + " colors " + colorsWord);
lines.addAll(splitColoredWord(colorsWord + word.toString(), wordLength, maxLineLength, criticalLineLength, colorsWord));
lineLength = 0;
//System.out.println("lines: " + lines);
line = new StringBuilder(maxLineLength);
}else {
int textIndex = getFirstTextIndex(word.toString());
line = new StringBuilder(maxLineLength); // start the line with the word
line.append(word.substring(textIndex));
lineLength = wordLength;
line.insert(0, appendRawColorString(colorsWord, word.substring(0, textIndex)));
//System.out.println("line: " + line.toString());
}
}else {
int textIndex = getFirstTextIndex(word.toString());
line = new StringBuilder(maxLineLength); // start the line with the word
line.append(word.substring(textIndex));
lineLength = wordLength;
line.insert(0, appendRawColorString(colorsWord, word.substring(0, textIndex)));
//System.out.println("line: " + line.toString());
}
}else {
if (line.length() > 0) {
if (!first) {
line.append(' ');
lineLength++;
if (line.length() > 0) {
if (!first) {
line.append(' ');
lineLength++;
}
}
first = false;
line.append(word);
lineLength += wordLength;
//System.out.println("append word " + word);
}
first = false;
line.append(word);
lineLength += wordLength;
//System.out.println("append word " + word);
}
colorsWord = colors;
word = lineLength == 0 ? new StringBuilder(colors) : new StringBuilder();
wordLength = 0;

if (c == '\n') { // Newline forces the line to flush
////System.out.println(lastColors.replace('§', '&') + " LINE " + line.toString());
lines.add(line.toString());
line = new StringBuilder(maxLineLength);
lineLength = 0;
word.append(colors);
first = true;
}
}else {
word.append(c);
wordLength++;
}
colorsWord = colors;
word = lineLength == 0 ? new StringBuilder(colors) : new StringBuilder();
wordLength = 0;

if (c == '\n') { // Newline forces the line to flush
//System.out.println(lastColors.replace('§', '&') + " LINE " + line.toString());
lines.add(line.toString());
line = new StringBuilder(maxLineLength);
lineLength = 0;
word.append(colors);
first = true;
}
}else {
word.append(c);
wordLength++;
}

if (line.length() > 0) { // Only add the last line if there is anything to add
lines.add(line.toString());
}

return lines;
}catch (Exception ex) {
new RuntimeException("An exception occurred while trying to split the string " + rawString + " with max length " + maxLineLength + " and critical length " + criticalLineLength, ex).printStackTrace();
rawString = "§4ERROR " + rawString;
return Arrays.asList(rawString.split("(?<=\\G.{4})"));
}

if (line.length() > 0) { // Only add the last line if there is anything to add
lines.add(line.toString());
}

return lines;
}

public static String appendRawColorString(String original, String appended) {
Expand Down Expand Up @@ -218,23 +225,32 @@ private static String getColorDifference(String oldColors, String newColors) {
return newColors.startsWith(oldColors) ? newColors.substring(oldColors.length()) : newColors;
}

private static List<String> splitColoredString(String string, int stringLength, int maxLength, int criticalLength, String startColors) {
private static List<String> splitColoredWord(String string, int stringLength, int maxLength, int criticalLength, String startColors) {
final String original = string;
int loops = 0;
List<String> split = new ArrayList<>();
while (stringLength >= maxLength || string.length() >= criticalLength) {
if (loops++ > 1000) throw new RuntimeException("Failed to split a colored string: " + original);
//System.out.println("Colored string too long: " + string + " | length " + stringLength + " | COMPLETE " + string.length());
int colorIndex = string.indexOf('§');
if (colorIndex > maxLength || colorIndex == -1) { // before color -> only text
split.add(startColors + string.substring(0, maxLength));
//System.out.println("Colors too long: " + split + " | color index " + colorIndex);
string = string.substring(maxLength);
stringLength -= maxLength;
}else {
int length = 0;
int previousIndex = -2;
String colors = startColors;
//System.out.println("Matching " + string);
Matcher matcher = COLOR.matcher(string);
while (matcher.find()) {
if (loops++ > 1000) throw new RuntimeException("Failed to split a colored string: " + original);
length += matcher.start() - previousIndex - 2;
//System.out.println("Matched " + matcher.group() + " | Length " + length);
if (length > maxLength || matcher.start() > criticalLength) {
split.add(string.substring(0, previousIndex));
//System.out.println("Added part: " + split);
string = startColors + string.substring(previousIndex);
startColors = colors;
matcher = COLOR.matcher(string);
Expand All @@ -250,11 +266,14 @@ private static List<String> splitColoredString(String string, int stringLength,
int truncated = 0;
if (length >= maxLength) {
truncated = maxLength + startColors.length();
if (string.charAt(truncated - 1) == '§') truncated--;
split.add(string.substring(0, truncated));
//System.out.println("Truncated with length: " + split);
string = startColors + string.substring(truncated);
}else if (string.length() >= criticalLength) {
truncated = criticalLength - startColors.length();
split.add(string.substring(0, truncated));
//System.out.println("Truncated with critical length: " + split);
string = startColors + string.substring(truncated);
}
stringLength -= truncated;
Expand Down

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