Bouncing Balls, struggling with getting more than 1 (processing)
so I want to have 10 Balls bouncing up and down. So far I have managed to get 1 Ball to bounce, and to have something like gravity.
But now I want to add more balls, but I just can`t manage to do so. So far I tried to add an array, and then to use a loop, but nothing I tried worked for me yet.
Would appreciate if somebody could point me out to the Solution.
Ball b;
void setup() {
size(940, 660);
b = new Ball();
}
void draw() {
background(50);
fill(255);
b.display();
b.move();
}
and the class:
class Ball
{
float circleX;
float circleY;
float speed;
float gravity=0.2;
Ball() {
speed = 0;
circleY = 0;
circleX = 200;
}
void move() {
speed = speed + gravity; //gravity draufrechnen
circleY = circleY + speed; //mit der geschwindigkeit bewegegn
if (circleY >= height){
speed = -speed; //andere richtung
circleY = height;
speed = speed*0.9;
}
}
void display() {
stroke(0);
fill(127);
ellipse(circleX, circleY, 50 , 50);
}
}
java arrays object processing
edited Nov 24 '18 at 0:58
Nick
29.7k121941
asked Nov 24 '18 at 0:29
Victor Victor
61
add a comment |
so I want to have 10 Balls bouncing up and down. So far I have managed to get 1 Ball to bounce, and to have something like gravity.
But now I want to add more balls, but I just can`t manage to do so. So far I tried to add an array, and then to use a loop, but nothing I tried worked for me yet.
Would appreciate if somebody could point me out to the Solution.
Ball b;
void setup() {
size(940, 660);
b = new Ball();
}
void draw() {
background(50);
fill(255);
b.display();
b.move();
}
and the class:
class Ball
{
float circleX;
float circleY;
float speed;
float gravity=0.2;
Ball() {
speed = 0;
circleY = 0;
circleX = 200;
}
void move() {
speed = speed + gravity; //gravity draufrechnen
circleY = circleY + speed; //mit der geschwindigkeit bewegegn
if (circleY >= height){
speed = -speed; //andere richtung
circleY = height;
speed = speed*0.9;
}
}
void display() {
stroke(0);
fill(127);
ellipse(circleX, circleY, 50 , 50);
}
}
java arrays object processing
edited Nov 24 '18 at 0:58
Nick
29.7k121941
asked Nov 24 '18 at 0:29
Victor Victor
61
IscircleYandcircleXthe balls location? If so when you create multiple balls in your setup they will all be on-top of one another. You should modify your constructor to take in at least a differentxvalue, then tryb1 = new Ball(50),b2 = new Ball(200), etc... in your setup, then draw the balls.
– M.G
Nov 24 '18 at 0:34
Create a MCVE of at least one bouncing ball (as your title claims) and before you know it you will be shown how to make 50 bouncing balls.
– DevilsHnd
Nov 24 '18 at 1:45
add a comment |
so I want to have 10 Balls bouncing up and down. So far I have managed to get 1 Ball to bounce, and to have something like gravity.
But now I want to add more balls, but I just can`t manage to do so. So far I tried to add an array, and then to use a loop, but nothing I tried worked for me yet.
Would appreciate if somebody could point me out to the Solution.
Ball b;
void setup() {
size(940, 660);
b = new Ball();
}
void draw() {
background(50);
fill(255);
b.display();
b.move();
}
and the class:
class Ball
{
float circleX;
float circleY;
float speed;
float gravity=0.2;
Ball() {
speed = 0;
circleY = 0;
circleX = 200;
}
void move() {
speed = speed + gravity; //gravity draufrechnen
circleY = circleY + speed; //mit der geschwindigkeit bewegegn
if (circleY >= height){
speed = -speed; //andere richtung
circleY = height;
speed = speed*0.9;
}
}
void display() {
stroke(0);
fill(127);
ellipse(circleX, circleY, 50 , 50);
}
}
java arrays object processing
edited Nov 24 '18 at 0:58
Nick
29.7k121941
asked Nov 24 '18 at 0:29
Victor Victor
61
so I want to have 10 Balls bouncing up and down. So far I have managed to get 1 Ball to bounce, and to have something like gravity.
But now I want to add more balls, but I just can`t manage to do so. So far I tried to add an array, and then to use a loop, but nothing I tried worked for me yet.
Would appreciate if somebody could point me out to the Solution.
Ball b;
void setup() {
size(940, 660);
b = new Ball();
}
void draw() {
background(50);
fill(255);
b.display();
b.move();
}
and the class:
class Ball
{
float circleX;
float circleY;
float speed;
float gravity=0.2;
Ball() {
speed = 0;
circleY = 0;
circleX = 200;
}
void move() {
speed = speed + gravity; //gravity draufrechnen
circleY = circleY + speed; //mit der geschwindigkeit bewegegn
if (circleY >= height){
speed = -speed; //andere richtung
circleY = height;
speed = speed*0.9;
}
}
void display() {
stroke(0);
fill(127);
ellipse(circleX, circleY, 50 , 50);
}
}
java arrays object processing
java arrays object processing
edited Nov 24 '18 at 0:58
Nick
29.7k121941
asked Nov 24 '18 at 0:29
Victor Victor
61
edited Nov 24 '18 at 0:58
Nick
29.7k121941
asked Nov 24 '18 at 0:29
Victor Victor
61
edited Nov 24 '18 at 0:58
Nick
29.7k121941
edited Nov 24 '18 at 0:58
Nick
29.7k121941
edited Nov 24 '18 at 0:58
Nick
29.7k121941
29.7k121941
asked Nov 24 '18 at 0:29
Victor Victor
61
asked Nov 24 '18 at 0:29
Victor Victor
61
asked Nov 24 '18 at 0:29
Victor Victor
61
61
IscircleYandcircleXthe balls location? If so when you create multiple balls in your setup they will all be on-top of one another. You should modify your constructor to take in at least a differentxvalue, then tryb1 = new Ball(50),b2 = new Ball(200), etc... in your setup, then draw the balls.
– M.G
Nov 24 '18 at 0:34
Create a MCVE of at least one bouncing ball (as your title claims) and before you know it you will be shown how to make 50 bouncing balls.
– DevilsHnd
Nov 24 '18 at 1:45
add a comment |
IscircleYandcircleXthe balls location? If so when you create multiple balls in your setup they will all be on-top of one another. You should modify your constructor to take in at least a differentxvalue, then tryb1 = new Ball(50),b2 = new Ball(200), etc... in your setup, then draw the balls.
– M.G
Nov 24 '18 at 0:34
Create a MCVE of at least one bouncing ball (as your title claims) and before you know it you will be shown how to make 50 bouncing balls.
– DevilsHnd
Nov 24 '18 at 1:45
Is
circleY and circleX the balls location? If so when you create multiple balls in your setup they will all be on-top of one another. You should modify your constructor to take in at least a different x value, then try b1 = new Ball(50), b2 = new Ball(200), etc... in your setup, then draw the balls.– M.G
Nov 24 '18 at 0:34
Is
circleY and circleX the balls location? If so when you create multiple balls in your setup they will all be on-top of one another. You should modify your constructor to take in at least a different x value, then try b1 = new Ball(50), b2 = new Ball(200), etc... in your setup, then draw the balls.– M.G
Nov 24 '18 at 0:34
Create a MCVE of at least one bouncing ball (as your title claims) and before you know it you will be shown how to make 50 bouncing balls.
– DevilsHnd
Nov 24 '18 at 1:45
Create a MCVE of at least one bouncing ball (as your title claims) and before you know it you will be shown how to make 50 bouncing balls.
– DevilsHnd
Nov 24 '18 at 1:45
add a comment |
1 Answer
1
active
oldest
votes
Create a constructor in balls, where you can pass the initial x and y coordinate of a ball:
class Ball
{
.....
Ball(int x, int y) {
speed = 0;
circleX = x;
circleY = y;
}
.....
}
Create an array of balls and initialize it in the setup function:
int no_of_balls = 10;
Ball balls = new Ball[no_of_balls];
void setup() {
for (int i=0; i<no_of_balls; ++i) {
balls[i] = new Ball(80 + i*80, i*5);
}
size(940, 660);
}
The balls can be initialized with different start heights by using Math.random():
for (int i=0; i<no_of_balls; ++i) {
balls[i] = new Ball( 80 + i*80, (int)(Math.random()*100.0) );
}
display and move the array of balls in draw:
void draw() {
background(50);
fill(255);
for (int i=0; i<no_of_balls; ++i) {
balls[i].display();
balls[i].move();
}
}
Preview (down scaled):
answered Nov 24 '18 at 7:52
Rabbid76Rabbid76
37.7k113248
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Create a constructor in balls, where you can pass the initial x and y coordinate of a ball:
class Ball
{
.....
Ball(int x, int y) {
speed = 0;
circleX = x;
circleY = y;
}
.....
}
Create an array of balls and initialize it in the setup function:
int no_of_balls = 10;
Ball balls = new Ball[no_of_balls];
void setup() {
for (int i=0; i<no_of_balls; ++i) {
balls[i] = new Ball(80 + i*80, i*5);
}
size(940, 660);
}
The balls can be initialized with different start heights by using Math.random():
for (int i=0; i<no_of_balls; ++i) {
balls[i] = new Ball( 80 + i*80, (int)(Math.random()*100.0) );
}
display and move the array of balls in draw:
void draw() {
background(50);
fill(255);
for (int i=0; i<no_of_balls; ++i) {
balls[i].display();
balls[i].move();
}
}
Preview (down scaled):
answered Nov 24 '18 at 7:52
Rabbid76Rabbid76
37.7k113248
add a comment |
Create a constructor in balls, where you can pass the initial x and y coordinate of a ball:
class Ball
{
.....
Ball(int x, int y) {
speed = 0;
circleX = x;
circleY = y;
}
.....
}
Create an array of balls and initialize it in the setup function:
int no_of_balls = 10;
Ball balls = new Ball[no_of_balls];
void setup() {
for (int i=0; i<no_of_balls; ++i) {
balls[i] = new Ball(80 + i*80, i*5);
}
size(940, 660);
}
The balls can be initialized with different start heights by using Math.random():
for (int i=0; i<no_of_balls; ++i) {
balls[i] = new Ball( 80 + i*80, (int)(Math.random()*100.0) );
}
display and move the array of balls in draw:
void draw() {
background(50);
fill(255);
for (int i=0; i<no_of_balls; ++i) {
balls[i].display();
balls[i].move();
}
}
Preview (down scaled):
answered Nov 24 '18 at 7:52
Rabbid76Rabbid76
37.7k113248
add a comment |
Create a constructor in balls, where you can pass the initial x and y coordinate of a ball:
class Ball
{
.....
Ball(int x, int y) {
speed = 0;
circleX = x;
circleY = y;
}
.....
}
Create an array of balls and initialize it in the setup function:
int no_of_balls = 10;
Ball balls = new Ball[no_of_balls];
void setup() {
for (int i=0; i<no_of_balls; ++i) {
balls[i] = new Ball(80 + i*80, i*5);
}
size(940, 660);
}
The balls can be initialized with different start heights by using Math.random():
for (int i=0; i<no_of_balls; ++i) {
balls[i] = new Ball( 80 + i*80, (int)(Math.random()*100.0) );
}
display and move the array of balls in draw:
void draw() {
background(50);
fill(255);
for (int i=0; i<no_of_balls; ++i) {
balls[i].display();
balls[i].move();
}
}
Preview (down scaled):
answered Nov 24 '18 at 7:52
Rabbid76Rabbid76
37.7k113248
Create a constructor in balls, where you can pass the initial x and y coordinate of a ball:
class Ball
{
.....
Ball(int x, int y) {
speed = 0;
circleX = x;
circleY = y;
}
.....
}
Create an array of balls and initialize it in the setup function:
int no_of_balls = 10;
Ball balls = new Ball[no_of_balls];
void setup() {
for (int i=0; i<no_of_balls; ++i) {
balls[i] = new Ball(80 + i*80, i*5);
}
size(940, 660);
}
The balls can be initialized with different start heights by using Math.random():
for (int i=0; i<no_of_balls; ++i) {
balls[i] = new Ball( 80 + i*80, (int)(Math.random()*100.0) );
}
display and move the array of balls in draw:
void draw() {
background(50);
fill(255);
for (int i=0; i<no_of_balls; ++i) {
balls[i].display();
balls[i].move();
}
}
Preview (down scaled):
answered Nov 24 '18 at 7:52
Rabbid76Rabbid76
37.7k113248
answered Nov 24 '18 at 7:52
Rabbid76Rabbid76
37.7k113248
answered Nov 24 '18 at 7:52
Rabbid76Rabbid76
37.7k113248
answered Nov 24 '18 at 7:52
Rabbid76Rabbid76
37.7k113248
37.7k113248
add a comment |
add a comment |
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Is
circleYandcircleXthe balls location? If so when you create multiple balls in your setup they will all be on-top of one another. You should modify your constructor to take in at least a differentxvalue, then tryb1 = new Ball(50),b2 = new Ball(200), etc... in your setup, then draw the balls.– M.G
Nov 24 '18 at 0:34
Create a MCVE of at least one bouncing ball (as your title claims) and before you know it you will be shown how to make 50 bouncing balls.
– DevilsHnd
Nov 24 '18 at 1:45