How do I make an Entity#onGround method with an offset above that ground.

[TheRPGAdventurer]

So i use Entity#onGround on my dragon flying algorithim to detect if it is on the ground so the dragon can stop flying.  But I need to make one with an offset above it.

I once used a "while loop" algorithim to detect if the dragon has solid ground below with an offset above it +. but problem is that if the dragon goes to a single piece of y axis without any blocks below or Biome O Plenty's blocks that it cant verify, the game crashes because it cant find any solid block so i ended up using Entity#onGround without any offset. Instead but it too has some problems, like having no offset. 

 

In Entity#move() there is this method

this.onGround = this.isCollidedVertically && d3 < 0.0D;

so i tried replicating it with an offset

	@Override
	public void move(MoverType type, double x, double y, double z) {
		this.onGround = this.isCollidedVertically && y > 5.0D;
		super.move(type, x, y, z);
	}

but what it does is still making the dragon fly even tho its sticking on the ground it is indicated when it is playing its walking/step sound

 

Without an offset, i ended up with this bug, dragon is stuck it should stop flying rightnow and use the walking algorithim instead of the flying algorithim.

Edited December 2, 2018 by TheRPGAdventurer

[Animefan8888]

4 hours ago, TheRPGAdventurer said:

Biome O Plenty's blocks that it cant verify

Can you post this code because this part doesnt make any sense.

[TheRPGAdventurer]

1. basically i want a nearGround method, so if the dragons is nearGround it's setFlying(false); onGround really needs you to stick to the ground, onGround2 was an attempt to make a nearGround method. But i suck at coding
2. https://pastebin.com/VX63RmNY