How prevent character to jump on mid-air with Physics Matter in Phaser 3?

Phaser 3
2

I have finally found the solution for this issue:

  • First, declare a variable called skaterTouchingGround right after the config object like so:
let skaterTouchingGround;
  • Second, in the create() function add the collision detector event & set the variable skaterTouchingGround to true like so:
//Detect collision with ground
this.matter.world.on("collisionactive", (skater, ground) => {
   skaterTouchingGround = true;
});
  • Third, in the update() function & if statement, add the skaterTouchingGround variable as condition to trigger the jump & once the jump is done set the variable skaterTouchingGround to false like so:
//Ollie
if (Phaser.Input.Keyboard.JustDown(this.arrowKeys.up) && skaterTouchingGround) {
    skaterTouchingGround = false;
    //Set ollie power
    ollie = -12;

    //Set skate velocity
    skater.setVelocityY(ollie);

    //Play the ollie animation
    skater.anims.play('ollie');

}

If you follow these steps, the skater won’t be able to jump midair.