Table t1;
import ddf.minim.*;
AudioPlayer player;
Minim minim;
int stickColR=0;
int stickColG=0;
int stickColB=0;
int counter=0;
//--------------
void setup(){
size(1000,600);
smooth();
t1 = new Table(1000,600);
t1.startGame();
//sound player setup
minim= new Minim(this);
player=minim.loadFile("ballsound.mp3");
}
//--------------
void draw(){
strokeWeight(10);
stroke(255,0,0);
fill(26, 218, 35);
rect(0, 0, 1000, 600);
fill(0);
noStroke();
ellipse(0, 0, 100, 100);
ellipse(1000, 0, 100, 100);
ellipse(0, 600, 100, 100);
ellipse(1000, 600, 100, 100);
t1.updatePos(); //calling the function to update the position of the balls
t1.visualize(); // Function responsible for drawing the balls
}
//--------------
void mousePressed(){
t1.mousePressed(mouseX-t1.x,mouseY-t1.y);
}
//--------------
void mouseReleased(){
t1.mouseReleased(mouseX-t1.x,mouseY-t1.y);
}
//=============================
class Table{
boolean GameIsOver=false;
float drag = 0.99;
float bounce = 0.4;
float wallBounce = 0.3;
float pushFactor = 0.4;
float maxPush = 20;
color[] ballColors = new color[]{color (255), color (216,7,17),color(17,242,225), color ( #45B4CE) , color ( #6A6347) , color (#E80909) ,color (#CEA9A9)};
Ball[] balls;
Ball selectedBall;
int x,y,width,height;
//--------------
Table(int w, int h){
width = w;
height = h;
}
//--------------
void startGame(){
buildBalls(5);
}
//--------------
void buildBalls(int count){
balls = new Ball[2*count+1];
int x_coor_red=600;
int y_coor_red=300;
int x_coor_green=626;
int y_coor_green=313;
for(int i=0;i<count;i++)
{
balls[i] = new Ball(x_coor_red, y_coor_red,i+1, this);
x_coor_red+=26;
y_coor_red-=13;
if(i>=3)
{
x_coor_red-=26;
y_coor_red+=26;
}
}
for(int i=0;i<count;i++)
{
balls[count+i] = new Ball( x_coor_green, y_coor_green,i+2, this);
x_coor_green+=26;
y_coor_green+=13;
if(i==1)
{
x_coor_green-=26;
y_coor_green-=20;
}
if(i==2)
{
y_coor_green-=20;
}
if(i==3)
{
x_coor_green-=45;
}
}
balls[2*count] = new Ball( 0.5*(width), 0.5*(height),0, this);
}
//--------------
void updatePos(){
//simulation
for(int i=0;i<balls.length;i++)
balls[i].update();
//collision detection
for(int i=0;i<balls.length;i++)
for(int j=i+1;j<balls.length;j++)
balls[i].collisionDetect(balls[j]);
}
//--------------
void visualize(){
translate(x,y);
noStroke();
//draw stick
if(mousePressed && selectedBall!= null && (mouseX<=26+selectedBall.x || mouseX>26-selectedBall.x) && selectedBall.ballColor==color(255)){
stickColR+=2;
stickColB+=2;
strokeWeight(4);
stroke(stickColR, stickColG, stickColB);
line ( mouseX , mouseY , mouseX + cos (atan2 ( mouseY -selectedBall.y , mouseX - selectedBall.x) )*300 , mouseY + sin( atan2 ( mouseY - selectedBall.y , mouseX -selectedBall.x ))*300);
}
//drawing
for(int i=0;i<balls.length;i++){
balls[i].visualize();
//Balls"disappearing" in corners
if(balls[i].x<50 && (balls[i].y<50 || balls[i].y>550) || balls[i].x>950 &&(balls[i].y<50 || balls[i].y>550)){
player.rewind();
player.play();
if(balls[i].ballColor==color(255))
{
textSize(25);
text("Cue Ball Sunk. GAME OVER",350,560);
}
fill(0);
ellipse(0,0,100,100);
ellipse(1000, 0, 100, 100);
ellipse(0, 600, 100, 100);
ellipse(1000, 600, 100, 100);
balls[i].x=1200;
balls[i].y=0;
counter++;
if (balls[i].ballColor != 255 && counter>=3)
{
textSize(25);
text("YOU WIN", 350,560);
}
}
}
}
//--------------
float kineticEnergy(){
float energy=0;
for(int i=0;i<balls.length;i++)
energy += mag( balls[i].vx, balls[i].vy );
return energy;
}
//--------------
void mousePressed(int mx, int my){
for(int i=0;i<balls.length;i++)
if( dist(balls[i].x,balls[i].y,mx,my) < balls[i].radius) {
selectedBall = balls[i];
break;
}
}
//--------------
void mouseReleased(int mx, int my){
if(selectedBall != null){
float px = (selectedBall.x-mx) * pushFactor;
float py = (selectedBall.y-my) * pushFactor;
float push = mag(px,py);
stickColR=0;
stickColB=0;
if( push > maxPush ){
px = maxPush*px/push;
py = maxPush*py/push;
}
selectedBall.push(px,py);
}
selectedBall = null;
}
}
class Ball{
float x,y,vx,vy,radius,diameter;
int type;
Table table;
color ballColor;
//--------------
Ball(float x, float y, int type, Table t){
this.x = x;
this.y = y;
this.type = type;
diameter = 26;
radius = diameter/2;
table = t;
ballColor = table.ballColors[type];
}
//--------------
void update(){
vx *= table.drag;
vy *= table.drag;
x += vx;
y += vy;
wallBounce();
}
//--------------
void wallBounce(){
if(x<=radius){
vx = -table.wallBounce*vx;
x = radius;
player.rewind();
player.play();
}
if(x>=t1.width-radius){
vx = -table.wallBounce*vx;
x = table.width-radius;
player.rewind();
player.play();
}
if(y<=radius){
vy = -table.wallBounce*vy;
y = radius;
player.rewind();
player.play();
}
if(y>=t1.height-radius){
vy = -table.wallBounce*vy;
y = table.height-radius;
player.rewind();
player.play();
}
}
//--------------
void visualize(){
fill(ballColor);
stroke(0);
strokeWeight(2);
stroke(0);
ellipse(x,y,diameter,diameter);
}
//--------------
void push(float dx, float dy){
vx += dx;
vy += dy;
}
//--------------
void collisionDetect(Ball b){
float distance = dist(x,y,b.x,b.y);
if( distance < diameter && (b.x>50 && (b.y>50 || b.y<550) || b.x<950 &&(b.y>50 || b.y<550))){
float vxSum = 0.5*(vx + b.vx);
float vySum = 0.5*(vy + b.vy);
float forceMagnitude = ((b.x-x)*(vx-vxSum) + (b.y-y)*(vy-vySum));
float xForce = 0.25*(x-b.x)*forceMagnitude/distance;
float yForce = 0.25*(y-b.y)*forceMagnitude/distance;
vx = vx + table.bounce * xForce;
vy = vy + table.bounce * yForce;
b.vx = b.vx - table.bounce * xForce;
b.vy = b.vy - table.bounce * yForce;
b.x = x + (diameter+1)*(b.x-x)/distance;
b.y = y + (diameter+1)*(b.y-y)/distance;
player.rewind();
player.play();
}
}
}
我正在处理桌球游戏，我差不多完成了，但是我被困在这里。我想添加一个计数器，当一个球进入角球时进行计数，然后一旦该计数器等于10，即球的数量，它将显示获胜消息。我认为出问题了，因为每次抽奖都会重置计数器？但是我不确定还有什么地方可以初始化它。顺便说一句，现在我只将它设置为> = 3，这样我就可以快速查看它是否在工作。谢谢大家
由于我的声誉低下，即使我认为我还没有解决代码中的所有错误，也必须向我展示我的解决方案。
我认为您在问题中陈述的错误与计数器变量关系不大。我运行了您的代码，发现您试图通过更改坐标来隐藏“消失的”球。这意味着“消失的”球仍可以通过以下if语句进行限定，结果，counter的值将继续增加。
//Balls"disappearing" in corners
if(balls[i].x<50 && (balls[i].y<50 || balls[i].y>550) || balls[i].x>950 &&(balls[i].y<50 || balls[i].y>550))
因此，您可以向Ball类添加一个布尔字段
class Ball{
float x,y,vx,vy,radius,diameter;
int type;
Table table;
color ballColor;
// add this variable.
boolean disappeared = false;
// your constructor, wallBounce(), push(), collisionDetect()
void visualize(){
// only draw the ball when it hasn't disappeared.
if(!this.disappeared) {
fill(ballColor);
stroke(0);
strokeWeight(2);
stroke(0);
ellipse(x,y,diameter,diameter);
}
}
}
然后使用它来避免重复计算。
// other code in visualize()
if(!balls[i].disappeared) {
counter++;
balls[i].disappeared = true;
}
// other code
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