Emanuele Feronato

using UnityEngine; using System.Collections; public class MainScript : MonoBehaviour { // public variables. Values are set in the editor // the square object public GameObject squareObject; // the pivot object public GameObject pivotObject; // tansition speed, in seconds public float transitionSpeed; // private variables. Values are set in the script // the hero!! private GameObject squareHero; // hero pivot point. Basically another GameObject, the parent of squareHero private GameObject squareHeroPivot; // terrain pivot Point, the parent of all terrain tiles private GameObject terrainPivot; // can the hero rotate? private bool canRotate = true; // array of two elements which will contain ground colors private Color[] colors = new Color[2]; // this function is executed when the script is initialized. void Start () { // filling “colors” array colors [0] = Color.blue; colors [1] = Color.green; // placing squareHero on the centre of the stage squareHero = Instantiate(squareObject); // placing squareHeroPivot on the centre of the stage squareHeroPivot = Instantiate(pivotObject); // placing the pivot point in the lower right corner of squareHero squareHeroPivot.transform.position = new Vector2 (0.2f, -0.2f); // making squareHero child of squareHeroPivot squareHero.transform.parent = squareHeroPivot.transform; // now it’s time to place the terrain pivot point terrainPivot = Instantiate(pivotObject); // we are going to add 10 terrain tiles, enough for our 320 pixels wide game for (int i = 0; i < 10; i++) { // placing a terrain tile on the centre of the stage GameObject squareTerrain = Instantiate (squareObject); // placing it accordingly squareTerrain.transform.position = new Vector2 (-1.6f + i * 0.4f, -0.4f); // giving the tile a tint color squareTerrain.GetComponent<Renderer> ().material.color = colors[i % 2]; // making the tile child of the terrain pivot squareTerrain.transform.parent = terrainPivot.transform; } } // this function is executed at each frame. void Update () { // this is how we check if the player clicked if (Input.GetButtonDown (“Fire1”) && canRotate) { // setting canRotate to false to prevent the player to rotate the square while it’s already rotating canRotate = false; // getting current squareHeroPivot rotation, in degrees float currentRotation = squareHeroPivot.transform.rotation.eulerAngles.z; // getting current hero x position float currentHeroPosition = squareHeroPivot.transform.position.x; // getting current terrain x position float currentTerrainPosition = terrainPivot.transform.position.x; // the core of the script: LeanTween in action // rotateZ tweens rotation around Z axis, to currentRotation – 90 at “transitionSpeed” speed. // once completed, tweenComplete function is executed. LeanTween.rotateZ(squareHeroPivot, currentRotation – 90f, transitionSpeed).setOnComplete(tweenComplete); // moveX tweens position along x axis, to currentHeroPosition – 0.4 at “transitionSpeed” speed. LeanTween.moveX (squareHeroPivot, currentHeroPosition – 0.4f, transitionSpeed); LeanTween.moveX (terrainPivot, currentTerrainPosition – 0.4f, transitionSpeed); } } // tweenComplete function is called when the Z rotation has been completed void tweenComplete(){ // the player can rotate again canRotate = true; // getting square pivot rotation, in degrees int rotation = (int)squareHeroPivot.transform.eulerAngles.z; // reposition the pivot so that it’s always in the lower right corner of the square squareHeroPivot.transform.position = new Vector2 (0.2f, -0.2f); // changing hero position according to its pivot rotation, ready to start next rotation // this part can and should be optimized switch (rotation) { case 270: squareHero.transform.localPosition = new Vector2 (-0.2f, -0.2f); break; case 180: squareHero.transform.localPosition = new Vector2 (0.2f, -0.2f); break; case 90: squareHero.transform.localPosition = new Vector2 (0.2f, 0.2f); break; case 0: squareHero.transform.localPosition = new Vector2 (-0.2f, 0.2f); break; } // by default we assume the leftmost child of the tarrain is the first children… Transform leftmostChild = terrainPivot.transform.GetChild (0).transform; // … but we loop through all other children comparing their x position to find the actual leftmost child for (int i = 1; i < 10; i++) { if (terrainPivot.transform.GetChild (i).transform.position.x < leftmostChild.transform.position.x) { leftmostChild = terrainPivot.transform.GetChild (i).transform; } } // at this time we move the leftmost child after the rightmost tile, creating an infinite terrain without deleting old tiles and creating new tiles leftmostChild.transform.position = new Vector2 (2f, -0.4f); } }