使文字在加工过程中出现或消失

Question

所以，我想知道是否有一种方法可以让文本出现，然后消失，因为它被不同的文本所取代。我目前发现了一个代码，将让我有文字出现缓慢一个接一个，但我不知道的代码，将让我摆脱以前的文本作为新的文本出现。请帮帮我!

// creates the window with white background
import ddf.minim.*;
Minim minim;
AudioSnippet snip;
color c1 = color(0,0,0), c2 = color(0,0,0), current;
void setup(){
  size(1200, 800);
  current = c1;
  smooth();
  minim = new Minim(this);
  snip = minim.loadSnippet("LoudGun.mp3");
}
void mousePressed() {
  snip.play();
if(current==c1) { current = c2; } else { current = c1; }
}
// draw "Charlotte"  
void CharlotteBacon() {
  frameRate(5);
  fill(255);
  textSize(50);
  text("Charlotte Bacon, Age 6", 600, 275);
}
// draw "Daniel" 
void DanielBarden() {
  frameRate(5);
  fill(255);
  textSize(50);
  text("Daniel Barden, Age 7", 20, 50);
}
int col = 0;
// main method where all above methods are executed on the white window
void draw() {
   background(current);
  if(mouseX != pmouseX && mouseY != pmouseY){
  }
  if (mousePressed) { 
  }
  // each phrase is printed at intervals of 2 seconds
  if (mouseX == pmouseX && mouseY == pmouseY && mousePressed != true) {
    ;
    int currentTime = millis();
    int timeLapse = 2000;
    if (currentTime > timeLapse) {
      CharlotteBacon();
    }
    if (currentTime > timeLapse*2) {
      DanielBarden();
    }
  }
}

Answer 1

这样做的一种方法是使用一个String来保存要显示的文本，并为其分配您想要显示的文本，因此它将替换它。我做了一个例子，基于时间作为你的代码是。

String oneName = "Carol";
String otherName = "Chartllote";
String displayed ="";
int interval = 2000; // 2s
int time;
PFont font;
void setup() {
  size(300, 300);
  font = createFont("arial", 26);
  background(0);
  displayed = oneName;
  time = millis();
  textFont(font);
  fill(255);
}
void draw() {
  background(0);
  text(displayed, width/2 - textWidth(displayed)/2, height/2);
  if (millis() - time > interval) {
    displayed = displayed.equals(oneName)? otherName:oneName;
    time  = millis();
  }
}