zhaoguohao

using UnityEngine;
using UnityEngine.UI;

// For a discussion of the code, see: https://www.hallgrimgames.com/blog/2018/11/25/custom-unity-ui-meshes

public class MyUiElement : MaskableGraphic
{
    public float GridCellSize = 40f;
    
    [SerializeField]

unitycoder

// Drawing a line with UITK https://forum.unity.com/threads/drawing-a-line-with-uitk.1193470/
public class LineDrawer : VisualElement
{
    private Vector3 startPos, endPos;
    private float thickness;

    public LineDrawer(Vector3 pos1, Vector3 pos2, float width)
    {
        startPos = pos1;
        endPos = pos2;

dpid

How to notarize a Unity build for macOs 10.15 Catalina

As of January 2020, all apps running on macOs 10.15 Catalina are required to be notarized. For Unity games distributed outside the Mac App Store, such as with Steam, the notarization process is done post build using a series of Xcode command line tools.

Prerequisites

• a Mac that is compatible with macOs 10.15 Catalina :
  • MacBook (2015 or newer)
  • MacBook Air (2012 or newer)
• MacBook Pro (2012 or newer)

FlaShG

using UnityEngine;

/// <summary>
/// Small helper class to convert viewport, screen or world positions to canvas space.
/// Only works with screen space canvases.
/// </summary>
/// <example>
/// <code>
/// objectOnCanvasRectTransform.anchoredPosition = specificCanvas.WorldToCanvasPoint(worldspaceTransform.position);
/// </code>

douduck08

Unity's SerializedProperty not support custom type value setting. This extension use Reflection to get target instance of SerializedProperty in Custom Editor, made value setting of general type is posible.

YclepticStudios

/**
 *  ============================================================================
 *  MIT License
 *
 *  Copyright (c) 2017 Eric Phillips
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a
 *  copy of this software and associated documentation files (the "Software"),
 *  to deal in the Software without restriction, including without limitation
 *  the rights to use, copy, modify, merge, publish, distribute, sublicense,

unitycoder

public LayerMask layerMask = 1 << 0; // default layer (0)
public LayerMask layerMask2 = ~0; // everything
public LayerMask layerMask2b = -1; // everything
public LayerMask layerMask3 = default;// nothing
public LayerMask layerMask4 = 0;// nothing
public LayerMask layerMask4b; // nothing
public LayerMask layerMask5 = 1 << 5;// layer 5 (UI)
public LayerMask layerMask6 = 1 << 2 | 1 << 5;// Ignore Raycast (Layer 2) AND UI (Layer 5)
public LayerMask layerMask7 = ~(1 << 4 | 1 << 5); // all except layer 4 and 5
public LayerMask layerMask8 = ~(1 << 4); // all except layer 4

mandarinx

Unity3D optimization tips

Some code allocates memory when running in the editor and not on the device. This is due to Unity doing some extra error handling so possible error messages can be output in the console. Much of this code is stripped during build. It's therefore important to profile on device, and do it regularly.

Optimizations often makes code more rigid and harder to reason. Don't do it until you really need to.

When profiling, wrap methods or portions of a method in Profiler.BeginSample(string name) and Profiler.EndSample() to make them easier to find in the profiler.

public class SomeClass {