Full version: jsB@nk » Image » Simple animation
URL: https://www.javascriptbank.com/simple-animation.html
Way of doing this animation is to use separate variables and incrementsto work out the bounces and direction.
Full version: jsB@nk » Image » Simple animation
URL: https://www.javascriptbank.com/simple-animation.html
<SCRIPT>//detecting browser to dynamically write appropriate DIVs/LAYERsN=(navigator.appName.indexOf('Netscape')!=-1&&parseInt(navigator.appVersion)<5)S=(navigator.appName.indexOf('Netscape')!=-1&&parseInt(navigator.appVersion)>4.9)M=(navigator.appName.indexOf('Microsoft')!=-1)Vis=new Array()Vis[0]=(M||S) ? "hidden" : "hide"Vis[1]=(M||S) ? "visible" : "show"function GetDiv(divId,divY,divX,divW,divH,bCol,visb,zInd){bkCol=(bCol!="")?((N)?" bgColor="+bCol:";background:"+bCol):""Styl = (M||S) ? "<DIV" : "<LAYER"if(M||S){Styl+=" ID="+divIdStyl+=" style='position:absolute;top:"+divY+";left:"+divX+";width:"+divW+";height:"+divH+bkColStyl+=";visibility:"+Vis[visb]+";z-index:"+zIndStyl+="'>"}if(N){Styl+=" ID="+divIdStyl+=" top="+divY+" left="+divX+" width="+divW+" height="+divH+bkColStyl+=" visibility="+Vis[visb]+" z-index="+zIndStyl+=">"}document.writeln(Styl)}function EndDiv(){(M||S)? document.writeln("</DIV>"): document.writeln("</LAYER>")}function PutIt(ID,dX,dY){if(N){document.layers[ID].left=dXdocument.layers[ID].top=dY}if(M){document.all[ID].style.left=dXdocument.all[ID].style.top=dY}if(S){document.getElementById(ID).style.left=dXdocument.getElementById(ID).style.top=dY}}function ShowHide(ID,vs){if(N){document.layers[ID].visibility=Vis[vs]}if(M){document.all[ID].style.visibility=Vis[vs]}if(S){document.getElementById(ID).style.visibility=Vis[vs]}}function Xof(ID){if(N){return document.layers[ID].left}if(M){return document.all[ID].style.left}if(S){return document.getElementById(ID).style.left}}function Yof(ID){if(N){return document.layers[ID].top}if(M){return document.all[ID].style.top}if(S){return document.getElementById(ID).style.top}}function Zind(ID,zz){if(N){document.layers[ID].zIndex=zz}if(M){document.all[ID].style.zIndex=zz}if(S){document.getElementById(ID).style.zIndex=zz}}function ChangeCol(ID,colrx){if(M)document.all[ID].style.background=colrxif(N)document.layers[ID].bgColor=colrxif(S)document.getElementById(ID).style.background=colrx}function DivWrite(IdName,Str) {if (N){document.layers[IdName].document.write(Str)document.layers[IdName].document.close()}if(M) document.all[IdName].innerHTML=Strif(S) document.getElementById(IdName).innerHTML=Str}</SCRIPT><SCRIPT>//The laydiv.js file above has functions that//1. Write <DIV>s for Internet explorer and <LAYER>s for Netscape4.7//2. Calculate and return many (browser specific) properties of these objects like // z-index, pixeltop, pixelleft, visibility, etc,...GetDiv("Flyer",150,450,50,70,'',1,2)document.write("<img src=bong.gif>")EndDiv()//The code above writes a div at coords 450,150 with //width 50, height 70, bgcolor nil (clear), visibility 1, z-Index 2//that has an image of a ball on itdx=5//first horizontal direction is left by 5dy=5//first vertical direction is down by 5curX=350//the original x-coord of objectcurY=150//the original y-coord of objectfunction Fly(){curX+=dx//work out next x-coordcurY+=dy//work out next y-coordif(curX==50||curX==600)dx=-dx//if x-coord is at bound then bounce by changing directionif(curY==50||curY==400)dy=-dy//dittoPutIt("Flyer",curX,curY)//Put object 'Flyer' at coord curX,curY}Cont=setInterval('Fly()',20)//Continue the moving by setting interval to call the function</SCRIPT><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->