Useful Snippets

Some code that I find myself making over and over so I might as well just paste them here to copy.

// Mouse wheel scroll to zoom the camera in and out Camera.main.transform.position += Camera.main.transform.forward * Input.mouseScrollDelta.y;
// Set limits for scrolling camStartDir = Camera.main.transform.forward; camStartPos = Camera.main.transform.position; camLowerLimit = (7f - camStartPos.y) / camStartDir.y; camUpperLimit = (25f - camStartPos.y) / camStartDir.y;
void Update() { float toOrigin = Vector3.Distance(Camera.main.transform.position, Vector3.zero); float scrollspeed = toOrigin * 0.3f; zoomAmount += Input.mouseScrollDelta.y * scrollspeed; Camera.main.transform.position = camStartPos + camStartDir * zoomAmount;
if (Camera.main.transform.position.y < 7) { Camera.main.transform.position = camStartPos + camStartDir * camLowerLimit; zoomAmount = camLowerLimit; } if (Camera.main.transform.position.y > 25) { Camera.main.transform.position = camStartPos + camStartDir * camUpperLimit; zoomAmount = camUpperLimit; } }

// Exit the application Application.Quit();

// Freeze a rigidbody (turns off physics)
ball.GetComponent<Rigidbody>().constraints = RigidbodyConstraints.FreezeAll;

// Read a text file StreamReader sr = new StreamReader("Assets/mylist.txt");
string line; // Read and display lines from the file until the end of // the file is reached. List<string> thelist = new List<string>(); while ((line = sr.ReadLine()) != null) { Debug.Log(line); thelist.Add(line); }

// Helper function for creating primitives GameObject GenPrimitive(PrimitiveType type, Vector3 pos, Vector3 scale, Color c) { var go = GameObject.CreatePrimitive(type); go.transform.position = pos; go.transform.localScale = scale; go.GetComponent<Renderer>().material.color = c; return go; }

// Raycast into the scene with the mouse pointer, returns hits to collidersRaycastHit rh;if (Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition), out rh)){// do stuff with rh.collider.gameObject}

// Simple highlighting systemGameObject highlighted;Color savedColor;
void Update() { // if we have previously highlighted an object we need to set the color back before we highlight another if(highlighted != null) highlighted.GetComponent<Renderer>().material.color = savedColor;
// check if we hover over an object with the mouse RaycastHit rh; if (Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition), out rh)) { // we did, so remember this new object as highlighted highlighted = rh.collider.gameObject;
// save the color so we can set it back later savedColor = highlighted.GetComponent<Renderer>().material.color;
// set it's color to yellow highlighted.GetComponent<Renderer>().material.color = Color.yellow; } }