Reset Timer Problem

Programming Questions

devstation

in Programming Questions • 2 years ago

I have this Challenge, to "drop" an ellipse across a screen every 1 minute, this is the code i have so far

float y = 10;
float speed = 1.0;
float radius = 15.0;
int direction = 1;
int time;
int timeDelay;//Time Delay between calls
void setup() {
size(500, 500);
smooth();
noStroke();
ellipseMode(RADIUS);
time = millis();
timeDelay = 10000;
}
void draw() {
background(0);
fill(255);
if(millis() > time + timeDelay){
dropBall();
//time =millis(); this didnt give me the Desired Effect
}
}
void dropBall(){
ellipse(33, y, radius, radius);
y += speed * direction;
}
void reset(){
time = millis();
print("called");

}

The dropBall() Function is called only once, i guess i'ld probably need to reset the Millis() function?, how would i achieve calling the dropBall() Function every minute

Thank You

Replies(5)

paxromana

Re: Reset Timer Problem

2 years ago

One idea:

Create a 'lastMillis' int, and every time you create an ellipse, update 'lastMillis' with 'millis()'.

To use this, only draw a new ellipse whenever 'millis()-lastMillis' is greater than the desired delay time.

Alternately, you could use the 'seconds()' or 'minutes()' functions, which have the same general idea of 'millis()' but with their respective time measurements.

paxromana

Re: Re: Reset Timer Problem

2 years ago

//So, basically:

int timeDelay = 36000000 //milliseconds in one minute

int lastTime = 0;

setup(){}

draw(){

if(millis()-lastTime>=timeDelay){

dropBall();

lastTime=millis();

}

devstation

Thanks for your Suggestion, tried It, but the drawn ellipse just "flashes" down my Sketch,i think the dropBall() Function isnt called a minute after the previously droped ball exits my Screen, How would i probably go about this

PhiLho

Re: Reset Timer Problem

2 years ago

When the ball has reached the bottom, you can reset the delay.

float y = 10;
float speed = 1.0;
float radius = 15.0;
int direction = 1;
int time;
int timeDelay;//Time Delay between calls
void setup() {
size(500, 500);
smooth();
noStroke();
ellipseMode(RADIUS);
time = millis();
timeDelay = 5000;
}
void draw() {
background(0);
fill(255);
if (millis() > time + timeDelay) {
dropBall();
if (y > height + radius) {
y = 0;
time = millis();
}
}
}
void dropBall() {
ellipse(33, y, radius, radius);
y += speed * direction;
}
void reset() {
time = millis();
print("called");
}

devstation

Re: Reset Timer Problem

2 years ago

Thank you, worked as i expected and i learnt something new in the process

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