melonjs [Noob Question] Rotate toward mouse cursor

[sistemlogikadigital]

How to rotate an object toward mouse cursor?

so far i tried this code, but the object not rotate correctly

update:function{

  var mousePos = me.input.globalToLocal(me.input.pointer.clientX,me.input.pointer.clientY);
  var angle = this.angleToPoint(new me.Vector2d(mousePos.x, mousePos.y));

  this.renderable.currentTransform.rotate(angle - this.PrevAngle);
  this.PrevAngle = angle; 
} 

Thanks

[obiot]

me.pointer.pointer.pos is already a Vector object, so you should be able to directly use it with the angle function, with something like  “this.renderable.currentTransform.rotate(this.pos.angle(me.input.pointer.pos);”

 

which version of melonJS are u using ? Older (5.x), required the renderable.autoTransform to be manually set to true.

[sistemlogikadigital]

On 12/27/2018 at 3:55 PM, obiot said:

me.pointer.pointer.pos is already a Vector object, so you should be able to directly use it with the angle function, with something like  “this.renderable.currentTransform.rotate(this.pos.angle(me.input.pointer.pos);”

 

which version of melonJS are u using ? Older (5.x), required the renderable.autoTransform to be manually set to true.

Im using 6.1.0,

I tried your code but still not rotate correctly

[obiot]

There is really nothing more to it, it’s a pretty simple and straighforeward function, and if it rotates in the wrong direction just negate the angle.

I wish i could provide you a more detailed answer but on this year end i’m traveling and do not have my laptop. So unless someone else can provide a better answer you will have to experiment a bit by yourself to find the solution you need.

 

Happy New Year !

[obiot]

considering the result in wall to wall, I supposed you managed to fix it ?

good mini-game by the way, I had fun playing it and almost did 100 points

[sistemlogikadigital]

1 hour ago, obiot said:

considering the result in wall to wall, I supposed you managed to fix it ?

good mini-game by the way, I had fun playing it and almost did 100 points

yes i managed to fix it, i'm using math.atan2 to calculate angle,

btw thanks for playing my game