Different ways to move object and finding distance between two objects.

In unity one can move a gameobject with few different ways some of them are:

1st waytransform.Translate(0, 0, 2);

By writing this piece of line your object will start moving forward in z Direction.

2^ndwayis using vector 3

transform.position += new Vector3(0, 0, 2);     

By writing this piece of line the gameobject moves same as in above, this line adds 2 on z in every frame of transform.postion.

Note (Transform with capital ‘T’ is used for type declaration like: Transform Player-this will make a player variable of type transform, whereas transform starting with small ‘t’ is used to call the gameobject on which the script is attached or to use the transform property of any gameobject.)

For e.g.

Gameobject Player;

Player.transform.position;

3rd waytransform.Translate(Vector3.forward);

By writing this line gameobject on whom script is attach to will start moving forward.

To move a gameobject backward simply write- transform.translate(-Vector3.forward) or transform.translate(Vector3.back);

Same applies for left, right, up and down. Just replace forward from the direction you want to move.This are known as shorthand.

Finding Distance

Now finding distance between two gameobject can come handy in many scenarios.

Suppose we have to create an AI for enemy and want a good AI behavior related to distance between player and enemy say run when distance is more and walk when distance is less hide when in range, etc.

Example- In this example I have created few boxes and a sphere. The yellow line is drawn from sphere to all boxes if and only if they are within the specific distance.

Step1:Scene setup create few cubes and add a tag to all of them with “Objects”.

Create a sphere and add a script to it.

Step2:Write the following code. Attach the script to sphere.

Run the scene.

Try moving any cube back and forth. Tadaaa!! We are done It’s as simple as that.

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