c# - Dynamically changing speed of object in Unity -

i need object move , down according dynamic timing. exact locations stored in list() called timings. contain sorted entries such 0.90 1.895 2.64 3.98... these timings relative playing of music, can compared themusic.time. (themusic audiosource).

right (see code below), it's moving statically , down using movespeed. how can make alternatively, top , bottom point reached @ predefined times? when reaches end of list of timings movement should stop.

public class patrol : monobehaviour {      public transform[] patrolpoints;  //contains top , bottom position     public float movespeed; //needs changed dynamically      private int currentpoint;       // initialization     void start () {         transform.position = patrolpoints [0].position;         currentpoint = 0;     }      // update called once per frame     void update () {          print (currentpoint);         if (currentpoint >= patrolpoints.length) {             currentpoint = 0;         }          if (transform.position == patrolpoints [currentpoint].position) {             currentpoint++;         }          transform.position = vector3.movetowards (transform.position, patrolpoints[currentpoint].position, movespeed * time.deltatime);      } } 

it important there no moving away absolute time point. e.g. when timings reaches high time such 1009 there shouldn't drift.

also note other things (such changing color , checking user behaviour) need happen @ same time, see other question.

the path solution this answer shows function move gameobject on time.

with function in hand, can start coroutine, loop on list contains beatstimer. inside each loop should have variable determines if should go up or down after each loop. in example named variable updownmovedecider. variable decide index of patrolpoints array use.(i assume there 2 points index 0 , 1).

also, can call movetox function inside for loop each time. make sure yield wait movetox function finish or return before going next function.

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below should like:

public transform[] patrolpoints;  //contains top , bottom position list<float> beatstimer = new list<float>(); public transform objecttomove;  void start() {     //for testing purposes     beatstimer.add(0.90f);     beatstimer.add(1.895f);     beatstimer.add(2.64f);     beatstimer.add(3.98f);      //start moveobject     startcoroutine(begintomove()); }  ienumerator begintomove() {     // 0 = move up, 1 = move down     int updownmovedecider = 0;      //loop through timers     (int = 0; < beatstimer.count; i++)     {         if (updownmovedecider == 0)         {             //move             debug.log("moving time: " + beatstimer[i] + " in index: " + i);             //start moving , wait here until move complete(movetox returns)             yield return startcoroutine(movetox(objecttomove, patrolpoints[updownmovedecider].position, beatstimer[i]));              //change direction 1 next move             updownmovedecider = 1;         }         else         {             //move down             debug.log("moving down time: " + beatstimer[i] + " in index: " + i);             //start moving , wait here until move complete(movetox returns)             yield return startcoroutine(movetox(objecttomove, patrolpoints[updownmovedecider].position, beatstimer[i]));              //change direction 0 next move             updownmovedecider = 0;         }     } }  ienumerator movetox(transform fromposition, vector3 toposition, float duration) {     float counter = 0;      //get current position of object moved     vector3 startpos = fromposition.position;      while (counter < duration)     {         counter += time.deltatime;         fromposition.position = vector3.lerp(startpos, toposition, counter / duration);         yield return null;     } } 

the code inside for loop long easier understand. here shorter version no if/else statement.

//loop through timers (int = 0; < beatstimer.count; i++) {     //move up/down depening on updownmovedecider variable     string updown = (updownmovedecider == 0) ? "up" : "down";     debug.log("moving " + updown + " time: " + beatstimer[i] + " in index: " + i);      //start moving , wait here until move complete(movetox returns)     yield return startcoroutine(movetox(objecttomove, patrolpoints[updownmovedecider].position, beatstimer[i]));      //change direction     updownmovedecider = (updownmovedecider == 1) ? 0 : 1; }