如何獲得此代碼與loadStrings（）;工作？

Question

我想得到這個代碼與loadStrings（）;

現在代碼通過加載文本字符串字符串=，我想改變它，爲了讓它讀取.txt文件。

我試過各種方法，但我似乎總是得到一個錯誤代碼。可能嗎？

PFont font; 
String string = "Processing is an open source programming language and environment for people who want to program images, animation, and interactions."; 
int fontSize = 10; 
int specificWidth = 150; 
int lineSpacing = 2; 

int textHeight; 

void setup() { 
    size(600,600); 
    background(0); 

    font = createFont("Times New Roman", fontSize); 
    textFont(font,fontSize); 
    noLoop(); 
} 

void draw() { 
    fill(60); 
    stroke(60); 
    rect(100,100,specificWidth, calculateTextHeight(string, specificWidth, fontSize, lineSpacing)); 
    fill(255); 
    text(string, 100,100,specificWidth,1000); 
} 

int calculateTextHeight(String string, int specificWidth, int fontSize, int lineSpacing) { 
    String[] wordsArray; 
    String tempString = ""; 
    int numLines = 0; 
    float textHeight; 

    wordsArray = split(string, " "); 

    for (int i=0; i < wordsArray.length; i++) { 
    if (textWidth(tempString + wordsArray[i]) < specificWidth) { 
tempString += wordsArray[i] + " "; 
    } 
    else { 
tempString = wordsArray[i] + " "; 
numLines++; 
    } 
    } 

    numLines++; //adds the last line 

    textHeight = numLines * (textDescent() + textAscent() + lineSpacing); 
    return(round(textHeight)); 
} 

Answer 1

轉到素描 - >添加文件來添加文本文件，然後使用此代碼從文本文件中的字符串：

PFont font; 
String string = ""; 
int fontSize = 10; 
int specificWidth = 150; 
int lineSpacing = 2; 
String lines[]; 

int textHeight; 

void setup() { 
    size(600,600); 

    lines[] = loadStrings("text.txt"); 

    font = createFont("Times New Roman", fontSize); 
    textFont(font,fontSize); 
    noLoop(); 
} 

void draw() { 
    background(0); 
    string = lines[0]; 
    fill(60); 
    stroke(60); 
    rect(100,100,specificWidth, calculateTextHeight(string, specificWidth, fontSize, lineSpacing)); 
    fill(255); 
    text(string, 100,100,specificWidth,1000); 
} 

int calculateTextHeight(String string, int specificWidth, int fontSize, int lineSpacing) { 
    String[] wordsArray; 
    String tempString = ""; 
    int numLines = 0; 
    float textHeight; 

    wordsArray = split(string, " "); 

    for (int i=0; i < wordsArray.length; i++) { 
    if (textWidth(tempString + wordsArray[i]) < specificWidth) { 
tempString += wordsArray[i] + " "; 
    } 
    else { 
tempString = wordsArray[i] + " "; 
numLines++; 
    } 
    } 

    numLines++; //adds the last line 

    textHeight = numLines * (textDescent() + textAscent() + lineSpacing); 
    return(round(textHeight)); 
} 

注意，在這個例子中，整個字符串是在文本文件的第一行。如果你想從其他行獲得字符串，那麼你需要訪問「行」數組的不同部分。