Why does this piece of code work with gravity and this one dosent

[Treven]

Hey i working with this code for movement it works the way i want to except for jumping. My player, when he jumps goes through an instant jump upwards and a slow decent. I have found the problem in my basic movement code but i don’t get why its doing what it does. The commented out piece works with gravity but the other one dosen’t. can you help explain why this is and give me a solution if possible?

	moveVelocity = moveSpeed * (Input.GetAxisRaw ("Horizontal"));
			//myRigidbody2D.velocity = new Vector2 (moveVelocity * transform.right.x, myRigidbody2D.velocity.y);
			myRigidbody2D.velocity = transform.right * moveVelocity;

[Rostam24]

When I changed every rigidbody in my game to rigidbody2d, I had the same problem. Eventually, I ended up using rigidbody2d.AddForce for everything. Setting velocity or moveposition in one place would overwrite what I did in other places. I have no idea why that happened (I’m still pretty new to Unity), but using addforce was the solution for me.

[cjdev]

In the first commented line you are moving in both the x-axis, by ‘moveVelocity’ units to the right, and in the y-axis, by your Rigidbody y-velocity (gravity).

In the second line you are moving only in the x-axis to the right at a speed of ‘moveVelocity’ units. There’s no y-axis movement involved so you aren’t going to see any effect from gravity. Try adding in the Rigidbody’s y-velocity to the second one to account for gravity again.