Unity 3D Game opening screen fade implementation

2015/07/07//////////

by xbw/////////////////

Environment Unity 4.6.1////

Today, we realized the production of the game Welcome screen, First,

Presumably everyone has played the game, after a welcome interface will enter the game, which is what we want to achieve today;

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This I put him a new scene, can not create a new scene, the code directly attached to the main camera, the following directly on the code it;

The Java language used;

Welcome code

var renderoverlay:displaytexturefullscreen;function Start () {    Renderoverlay = getcomponent ( Displaytexturefullscreen);    Renderoverlay.setstartcolor (color.white);    Renderoverlay.setdelay (2.0);} function Update () {    if (Renderoverlay.guicolor.a > 0) {        renderoverlay.alphadown (time.deltatime);    }}

Displaytexturefullscreen Code

var graphic = Texturegui (); (28,23); var guicolor:color;function ongui () {    gui.color = Guicolor;    if (graphic.texture) {        GUI. Drawtexture (Rect (graphic.offset.x,graphic.offset.y,screen.width,screen.height), Graphic.texture, scalemode.stretchtofill,true);}    } function AlphaUp (change:float) {    guicolor.a + = Change;}    function Setstartcolor (color:color) {        guicolor = color;    }        function Setdelay (delay:float) {            if (Guicolor.a >. 5) {                GUICOLOR.A + = delay;            } else {                GUICOLOR.A-= delay;            }        }            function Alphadown (change:float) {                GUICOLOR.A-= change;            }

These two codes require a class library,

class;

Import system.collections.generic;//Texturegui class:create a basic Class for creating and placing GUI elements//Textur E = The texture to display//offset = pixel offset from top left corner, can is modified for easy positioningclass texture GUI {var texture:texture;//useful:texture.width, texture.height var Offset:vector2;//. x and. y private var o Riginaloffset:vector2; Store the original to correctly reset anchor Pointenum point {topleft, topright, Bottomleft, BottomRight, Center}//wha    T part of texture to position around? var anchorpoint = Point.topleft;        Unity default is the from-top left corner of texture function setanchor () {//meant to was run ONCE at Start.        Originaloffset = offset; if (texture) {//Check for NULL texture switch (anchorpoint) {//depending in where we want to center our OFFSE                TS case Anchorpoint.topleft://Unity default; Case Anchorpoint.topright://Take the offset and go to the top right corner offset.x = originaloffset.x-texture.width;                Break Case Anchorpoint.bottomleft://Bottom left corner of texture Offset.y = Originaloffset.y-texture.hei                    Ght                Break Case Anchorpoint.bottomright://bottom right corner of texture Offset.x = Originaloffset.x-texture.wi                    Dth                    Offset.y = Originaloffset.y-texture.height;                Break  Case Anchorpoint.center://and The Center of the texture (useful for screen Center textures) Offset.x =                    ORIGINALOFFSET.X-TEXTURE.WIDTH/2;                    Offset.y = ORIGINALOFFSET.Y-TEXTURE.HEIGHT/2;            Break }}}}//timer Class:class Timergui extends Texturegui {//Extend functionality from Texturegui for a Depreciati ng timer graphic var texturelend:texture; Left side of Full texture (non stretching part) var Offsetlend:vector2; Left side of the full texture (non stretching part) Start position var texturecenter:texture;     Center of timer ('ll be stretched across width) var offsetcenter:vector2;    var texturerend:texture;    var Offsetrend:vector2; var timerperct:float = 1; Percentage (0 to 1) This stretches the center var desiredwidth:float = 403; Max width of the timer in pixels function settime (newtime:float) {timerperct = NewTime;//sets the percent Based on Value}}//Switchgui class:extends the Texturegui to being able to load in multiple textures and switch    Between Themclass Switchgui extends Texturegui {var switchabletextures = new list.<texture> ();    var currenttexture:int = 0;        function Start () {if (Switchabletextures.count > 0) {texture = Switchabletextures[currenttexture]; }} function Changetexture (switchto:int) {if (SwitchTo < SwitchABletextures.count && switchTo >= 0) {texture = Switchabletextures[switchto];        Currenttexture = SwitchTo;        } else {//debug.log (this + ": Tried to call invalid part of Switchtextures array!"); }} function up () {if ((currenttexture+1) < Switchabletextures.count) {++currentt                Exture;            Texture = Switchabletextures[currenttexture];            } else {//debug.log (this + ": at the top!");  }} function Nexttexture () {if (currenttexture+1) < Switchabletextures.count) {//If we are                At the end of the array ++currenttexture;            Texture = Switchabletextures[currenttexture];                } else {//loop to the beginning currenttexture = 0;            Texture = Switchabletextures[currenttexture];   }} function down () {if ((currentTexture-1) >= 0) {             --currenttexture;            Texture = Switchabletextures[currenttexture];            } else {//debug.log (this + ": at the bottom!");    }}}//Location Class:class location {enum-point {topleft, topright, Bottomleft, BottomRight, Center}    var pointlocation = Point.topleft;    var Offset:vector2; function updateLocation () {switch (pointlocation) {Case PointLocation.TopLeft:offset =                Vector2 (0,0);            Break                Case pointLocation.TopRight:offset = Vector2 (screen.width,0);            Break                Case pointLocation.BottomLeft:offset = Vector2 (0,screen.height);            Break                Case pointLocation.BottomRight:offset = Vector2 (screen.width,screen.height);            Break                Case pointLocation.Center:offset = Vector2 (SCREEN.WIDTH/2,SCREEN.HEIGHT/2);     Break   }}}class textureanchor {enum Point {topleft, topright, Bottomleft, BottomRight, Center} var anchorpoint = point .    TopLeft;    var Offset:vector2; function Update () {switch (anchorpoint) {Case anchorPoint.TopLeft:offset = Vector2 (0,0)                ;            Break                Case anchorPoint.TopRight:offset = Vector2 (screen.width,0);            Break                Case anchorPoint.BottomLeft:offset = Vector2 (0,screen.height);            Break                Case anchorPoint.BottomRight:offset = Vector2 (screen.width,screen.height);            Break                Case anchorPoint.Center:offset = Vector2 (SCREEN.WIDTH/2,SCREEN.HEIGHT/2);        Break }    }}

The class does not need to be mounted, and the two outer two codes are mounted to the main camera,

A map in the red circle that needs to be set, that is, the welcome picture;;;,

Try the effect.;;

This is in the same scene, I saw two scenes, which requires a scene conversion,

The next section introduces, welcome students to learn from each other,



Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

Unity 3D Game opening screen fade implementation