CODEWITHSUNDEEP
unity-game-engineunityscript
Draco
Draco

Reputation: 138

moving away from character

I am trying to have some enemies run away from my player. I found code to move toward the play and made it the opposite. The problem is they speed up really fast when running away. If i make the code back to running towards the character they move at a normal pace. Why is this?

Running away

Vector2 velocity = new Vector2((transform.position.x - player.position.x) * speed, (transform.position.y - player.position.y) * speed);
rigidbody2D.velocity = velocity;

running towards

Vector2 velocity = new Vector2((transform.position.x - player.position.x) * speed, (transform.position.y - player.position.y) * speed);
rigidbody2D.velocity = -velocity;

Upvotes: 0

Views: 1020

Answers (1)

mcmonkey4eva
mcmonkey4eva

Reputation: 1377

I imagine the characters would actually slow down as they approach you... that's what the code you wrote would do.

Basically, you have (End - Start) * Speed... which means that the length of End - Start is multiplied by speed. So if the character is 5m away, velocity = 5m * speed, etc.

What you need is ((End - Start) / (End - Start).Length()) * Speed.

By dividing by the length of End - Start, you remove the distance from the equation, and get purely a direction multiplied by the wanted speed.

Upvotes: 1

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