0
我有这个程序wrritten了起来,它工作正常,但茎和花的生长速度不同。我怎样才能使这两个以相同的速度增长?我一直在为此奋斗了一两天,我知道这看起来很简单,但它对我来说是一种痛苦:P使两个对象以相同的速度增长?
我有这个程序wrritten了起来,它工作正常,但茎和花的生长速度不同。我怎样才能使这两个以相同的速度增长?我一直在为此奋斗了一两天,我知道这看起来很简单,但它对我来说是一种痛苦:P使两个对象以相同的速度增长?
您无法轻松同步这两个动画的原因是因为这些茎基于增长在frameCount和花的增长基础上,不是基于frameCount或frameRate的比例。我已经修改了你的花类,速度非常快,说明其中的问题是:
事情之前被称为Flower.display()
方法:
scale(-min((float)(frameCount)/250, 1), min((float)(frameCount)/250, 1));
这类似于你如何缩放茎。
在Flower.grow()
方法:
factor = maxFactor;
sizes = maxSize;
这是草率的,但快。只是强迫花朵以最大尺寸进行绘制,而上面的修改会缩放它。
下面是完整的源代码,意见和注释掉的代码:
Stem myStem;
Circle circles[];
Flower flowers = new Flower();
float scaleFactor=0.5;
void setup() {
size(floor(400*scaleFactor), floor(800*scaleFactor));
myStem = new Stem(200, 800);
flowers = new Flower (0, 0);
//moved this to setup, no need to recreate each frame
circles = new Circle[6];
circles[0] = new Circle(0, -40, 50, 50);
circles[1] = new Circle(0, -40, 50, 50);
circles[2] = new Circle(0, -40, 50, 50);
circles[3] = new Circle(0, -40, 50, 50);
circles[4] = new Circle(0, -40, 50, 50);
circles[5] = new Circle(0, 0, 50, 50);
// also smooth only needs to be called once
// unless ther is a noSmooth() somewhere
smooth();
}
void draw() {
float grow = 0;
//translate(myStem.initalloX, myStem.initalloY);
myStem.drawStem();
//set centre point
translate(myStem.initalloX, ((frameCount>250)?myStem.initalloY- 500:myStem.initalloY-(2*frameCount)));
if (frameCount>10) {
flowers.grow();
flowers.display();
}
}
class Stem {
int initalloX=200;
int initalloY=800;
Stem(int tempInitalloX, int tempInitalloY) {
initalloX = tempInitalloX;
initalloY = tempInitalloY;
}
void drawStem() {
background(#0DBADB);
scale(scaleFactor, scaleFactor);
stroke (12, 149, 11);
fill (12, 149, 11);
strokeWeight(10);
line(initalloX, initalloY, initalloX, ((frameCount>250)?initalloY-500:initalloY-(2*frameCount)));
//stem1
if (frameCount>101) {
noStroke();
translate(initalloX, initalloY-200);
scale(min((float)(frameCount-100)/100, 1), min((float)(frameCount-100)/100, 1));
beginShape();
vertex(0, 0);
bezierVertex(-40, -5, -30, -40, -80, -20);
bezierVertex(-47, -16, -52, 8, 0, 0);
endShape(CLOSE);
scale(1/min((float)(frameCount-100)/100, 1), 1/min((float)(frameCount-100)/100, 1));
translate(-initalloX, -(initalloY-200));
noStroke();
}
//stem2
if (frameCount>151) {
// noStroke();
translate(initalloX, initalloY-300);
scale(-min((float)(frameCount-150)/150, 1), min((float)(frameCount-150)/150, 1));
beginShape();
vertex(0, 0);
bezierVertex(-40, -5, -30, -40, -80, -20);
bezierVertex(-47, -16, -52, 8, 0, 0);
endShape(CLOSE);
scale(-1/min((float)(frameCount-150)/150, 1), 1/min((float)(frameCount-150)/150, 1));
translate(-initalloX, -(initalloY-300));
}
}
}
class Circle {
int c1 = 0;
int c2 = -40;
float c3 = 50;
float c4 = 50;
Circle(int tc1, int tc2, float tc3, float tc4) {
c1 = tc1;
c2 = tc2;
c3 = tc3;
c4 = tc4;
}
}
class Flower {
float centerX;
float centerY;
float posX;
float posY;
float maxSize = 51;
float maxFactor = 40;
float sizes = 0;
float factor = 0;
float speed = 0.17;
Flower() {
}
Flower(float _centerX, float _centerY)
{
centerX = _centerX;
centerY = _centerY;
}
void setCenter(float x, float y)
{
centerX = x;
centerY = y;
}
void display()
{
// added line below
scale(-min((float)(frameCount)/250, 1), min((float)(frameCount)/250, 1));
for (int i = -18; i < 360; i+=72)
{
posX = centerX + cos(radians(i)) * factor;
posY = centerY + sin(radians(i)) * factor;
noStroke();
fill(170, 14, 24); // blue
ellipse(posX, posY, sizes, sizes);
}
fill(14, 17, 170);
ellipse(centerX, centerY, sizes , sizes);
}
void grow()
{
// factor = (factor < maxFactor)? factor + speed: maxFactor;
// sizes = (sizes < maxSize)? sizes + speed*1.3 : maxSize;
// modified line below
factor = maxFactor;
sizes = maxSize;
}
}// end of Flower
很难马上回答这个问题。代码太多,运行查看问题并不容易,问题描述有点模糊。你能给我们一个更简洁的问题片段吗?也许删除不影响结果的项目?这样做的时候你甚至可能会自己发现问题。 – BoppreH