我在处理某些对象时遇到问题。代码应该有两个显示和移动的对象。但我只看到一个显示和移动的对象。也许我缺少一些东西。查看代码。
Rule myRule;
Rule myRule1;
void setup() {
size(200,200);
smooth();
//Initialize rule objects
myRule = new Rule(0,100,1);
myRule1 = new Rule(0,140,20);
}
void draw() {
background(255);
//int x1 = 0;
//int y1 = 0;
//Operate Rule object
myRule.move();
myRule.display();
myRule1.move();
myRule1.display();
}
class Rule {
float x;
float y;
float spacing;
float speed;
Rule(float x1, float y1, float s1) {
x = x1;
y = y1;
spacing = 10;
speed = s1;
}
void move() {
x = x + speed;
if((x > width) || (x < 0)) {
speed = speed * -1;
}
}
//Display lines at x location
void display() {
stroke(0);
fill(175);
line(x, height/2, width/2, height/2);
}
}