Search the Community

Hi, I saw the code presented in the link https://playground.babylonjs.com/#1NQTNE#11 and played many times. I felt "moveWithCollisions" is full of magic . it seems that with the help of "movewithCollisions" the mesh can smartly move and move little by little and finally manage to find its path to reach its destination. I checked the code but was not able to figure out how to use it exactly, there is few comment or remarks to tell what's the purpose of some important lines . so I listed these important lines that I didn't understand as below. can anyone please help to explain what's the purpose of these critical lines? (please notice that I use "//" to bring up what my question is ) // move to clicked coordinates ............ if(meshPlayer.destination) { var moveVector = meshPlayer.destination.subtract(meshPlayer.position); if (moveVector.length() > 1.1) { //1.why use 1.1 ,other than 2.2 or 0.8 or any length else? is it related to the player size 1 while downcasting a ray ? moveVector.y = GRAVITY; //2.GRAVITY is -0.5 as defined earlier, but why moveVector.y must be -0.5? what's the purpose to assign moveVector.y ? moveVector = moveVector.normalize();//3.what's the purpose of "normalize"？what's the benefit of doing this? is this line mandatory? moveVector = moveVector.scale(0.2); //4.why to shrink the moveVector to 1/5 of its original size? why not 0.1 or 2 or some number else? if(meshFound.distance > 1.1){moveVector.y = GRAVITY;} //5.why 1.1 again? meshPlayer.moveWithCollisions(moveVector); } else { meshPlayer.destination = null; } } .......... It's really appreciated for your time. Edit Your content will need to be approved by a moderator