Unity simple delay function code#

Since we only use one Sprite Renderer per object, we can use this method to automatically detect and get a reference to our renderer each time. This is done through the GetComponent method, which returns the first matching component it detects.

Unity simple delay function code#

Instead of dragging and dropping the component into a slot like we have done so far, we will ask the code to detect the component itself. However, we will use a different way of getting the component. In this script, we get a reference to the Sprite Renderer of the sprite. Next, create a new script, and name it ColorChanger. Say we want to make a square that changes its color between red and blue in 1-second intervals. Let us consider an example to understand how a coroutine works.

A coroutine is capable of exactly that: a coroutine is a function that is capable of waiting and timing its process, as well as pausing it entirely. However, sometimes we want to deliberately slow down a function or make it wait for longer than the split second duration that it runs. This is what you would consider “normal” behaviour as far as your code is concerned. Generally, if you call a function in Unity (or C#, really), the function will run from start to finish. Let us consider the line of code shown below to understand what coroutines is all about. Light_state = true // change the state of the led.Coroutines are the most helpful tools when making games in Unity. If ( (time_difference >= time_delay) & ( light_state = false))ĭigitalWrite(light, HIGH) // turn on the led check the time_difference is equal or more than 1000 AND the state of led is off Light_state = false // change the state of the led. If ( (time_difference >= time_delay) & ( light_state = true))ĭigitalWrite(light, LOW) // turn off the led check the time difference is equal or more than 1000 AND the state of the led is ON Time_difference = old_time - check_time // calculate the time difference Light_state = true // set the state to on.Ĭheck_time = millis() // check the time now Old_time = millis() // check the time as now.ĭigitalWrite(light, HIGH) // Turn the led on Unsigned long time_delay = 1000 // the time delay you want. Now with the use of millis() byte light = 5 // connect a led to pin 5īoolean light_state // the state of the led Let take the blink code byte light = 5 // Let connect a led to pin 5 with a 470 ohms resistor. When it reach the 1000 difference, you re-init the old value, and you compare with the 'new' old value with a regular millis check, until you got again the 1000 difference, and repeat the cycle.

So to make a delay of 1000, you need a difference of 1000 or above. As you see, the number 10 ( the old value ) versus number 21 ( the new value ) have a difference of 11. And the code do other stuff, and when it read again the line, the number will be -> 21. my_time = millis( ) So my_time will have the number -> 10. Let say you just start the Arduino and the code see this. When it reach the end, it will start from 0. The variable 'time' are unsigned long variable.

when you write this line, millis function take the amount of millisecond from the time you turn on the Arduino. the loop function runs over and over again foreverĭigitalWrite(LED 1, HIGH) // turn the LED on (HIGH is the voltage level)ĭigitalWrite(LED 1, LOW) // turn the LED off by making the voltage LOWĭigitalWrite(LED 2, HIGH) // turn the LED on (HIGH is the voltage level)ĭigitalWrite(LED 2, LOW) // turn the LED off by making the voltage LOW

initialize digital pin LED_BUILTIN as an output. Ive found many post code and try to understand the code but still even if, i edit the duration time its not giving me the right result that i expect there still a problem.Ĭan you please code this from using delay to millis? I want to start to understand how Millis work using Led on and off.īut i want to control the timing or the duration of the led off and on time. I've watched a lot of videos but still struggling to understand the Millis() function. I'm starting to study the Millis() function using simple code on and off with delay.