(Unity Beginner) Frogger type 2d Game JavaScript Help

Unity Engine
1

Hello, and thanks for your help in advance. I’m starting to design a game for school to design a frogger type overhead 2d game using JavaScript in Unity. My main question would be how would I make my object(Frog in this case) hop Forward, backwards, left, and right? I think after I can get this script working everything else wouldn’t be so tough. I just need an basic idea and maybe some code to get me started on my game. Thank you

2

while this is untested, it will give you an idea of how it works. here is the doc on it

var frog : Transform;


function Update() {
	// we run input GetKeyDown in Update function as the true value will be reset after each frame
	// Update is run per each frame
	// when player presses up key move the frog forward one unit 
	// you can increase the units moved by doing this:
		// Vector3.forward * 1.5f
	if(Input.GetKeyDown("up")) {
		frog.position = Vector3.forward;
	}
	
	if(Input.GetKeyDown("down")) {
		frog.position = Vector3.back;
	}
	
	if(Input.GetKeyDown("left")) {
		frog.position = Vector3.left;
	}
	
	if(Input.GetKeyDown("right")) {
		frog.position = Vector3.right;
	}
}
3

Thank you =D gonna try this out, thanks for your quick response !!!

4

So for example. If i wanted to change the units moved it would look exactly like this ? Vector3.forward * 1.5f ? with the * ??

5

exactly

Vector3.forward will move the GameObject in the z axis one unit.

Vector3.forward * 1.5f is multiplying 1 unit by 1.5 units. The ’ * ’ means multiply in programming

doc reference for it

6

Gottcha, Thanks a million!!

7

UnassignedReferenceException: The variable frog of ‘frog jumping’ has not been assigned.
You probably need to assign the frog variable of the frog jumping script in the inspector.
UnityEngine.Transform.set_position (Vector3 value) (at C:/BuildAgent/work/cac08d8a5e25d4cb/Runtime/ExportGenerated/Editor/UnityEngineTransform.cs:27)
frog jumping.Update () (at Assets/frog jumping.js:11)

is the error im getting while trying to run this script … i know its basic but like i said im just starting to learn unity … thanks