Making the Snow Over Phpbb Mod snow other things

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Dragonwolf
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Making the Snow Over Phpbb Mod snow other things

Post by Dragonwolf » Sun Dec 04, 2011 4:29 pm

I really liked the Snow Over Phpbb Mod and have used it to make a dedicated Christmas theme, but I have also had requests to make it snow other things (such as characters from a popular TV show). I am willing to do this, but unfortunately the mod only seems to accept a certain number of images and won't display any image higher than 5.png and won't use the rest even though I have images up to 12.png and have changed the main file to read:

Code: Select all

var flakeTypes 13;

Which I think should work, but it doesn't. I am using a Subsilver theme, if this helps. I have tried to get help with this on the mod page, but have received no responses.

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Re: Making the Snow Over Phpbb Mod snow other things

Post by AmigoJack » Mon Dec 05, 2011 5:41 am

Dragonwolf wrote:changed the main file to read:

Code: Select all

var flakeTypes 13;
By "main file" you mean /snowstorm.js? Then it must show up (like all the other variables also have assignments with an equals operator) as:

Code: Select all

var flakeTypes = 13;

It would also be nice to post a link back on the MOD support to this topic in case someone else is reading your post there.
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Re: Making the Snow Over Phpbb Mod snow other things

Post by Dragonwolf » Tue Dec 06, 2011 6:57 pm

Ok, sorry, I should have linked. It does have an = operator, I'm not sure how it got deleted when I was quoting. I have essentially installed this mod twice so as to have one theme with snow and the other with characters. The full text of the file (/characters.js) is as follows:

Code: Select all

/*
   DHTML PNG Snowstorm! OO-style Jascript-based Snow effect
   --------------------------------------------------------
   Version 1.3.20081215 (Previous rev: v1.2.20041121a)
   Dependencies: GIF/PNG images (0 through 4.gif/png)
   Code by Scott Schiller - http://schillmania.com
   Modified to work with phpBB3 - http://www.modphpbb3.com
   --------------------------------------------------------
   Description:
  
   Initializes after body onload() by default (via addEventHandler() call at bottom.)
  
   Properties:
  
   usePNG
   ---------------
   Enables PNG images if supported ("false" falls back to GIF)
  
   flakeTypes
   ---------------
   Sets the range of flake images to use (eg. a value of 5
   will use images ranging from 0.png to 4.png.)
  
   flakesMax
   ---------------
   Sets the maximum number of snowflakes that can exist on
   the screen at any given time.
   
   flakesMaxActive
   ---------------
   Sets the limit of "falling" snowflakes (ie. moving, thus
   considered to be "active".)
  
   vMax
   ---------------
   Defines the maximum X and Y velocities for the storm.
   A range up to this value is selected at random.
  
   flakeWidth
   ---------------
   The width (in pixels) of each snowflake image.
  
   flakeHeight
   ---------------
   Height (pixels) of each snowflake image.
   
   flakeBottom
   ---------------
   Limits the "bottom" coordinate of the snow.

   snowStick
   ---------------
   Allows the snow to "stick" to the bottom of the window.
   When off, snow will never sit at the bottom.
  
   snowCollect
   ---------------
   Enables snow to pile up (slowly) at bottom of window.
   Can be very CPU/resource-intensive over time.
   Also requires snowStick = true.

   followMouse
   ---------------
   Allow the mouse to affect the "wind", left-to-right.

*/

var snowStorm = null;

function SnowStorm() {

  // PROPERTIES
  // ------------------

  var imagePath = 'images/characters/'; // relative path to snow images (including trailing slash)
  var flakesMax = 600;
  var flakesMaxActive = 12;
  var vMaxX = 5;
  var vMaxY = 4;
  var usePNG = true;
  var flakeBottom = null;        // Integer for fixed bottom, 0 or null for "full-screen" snow effect
  var snowStick = null;
  var snowCollect = null;
  var targetElement = null;      // element which snow will be appended to (document body if undefined)
  var followMouse = true;
  var flakeTypes = 13;
  var flakeWidth = 45;
  var flakeHeight = 45;

  // ------------------

  var zIndex = 0; // CSS stacking order applied to each snowflake
  var flakeLeftOffset = 0; // amount to subtract from edges of container
  var flakeRightOffset = 0; // amount to subtract from edges of container

  // --- End of user section ---

  var addEvent = function(o,evtName,evtHandler) {
    typeof(attachEvent)=='undefined'?o.addEventListener(evtName,evtHandler,false):o.attachEvent('on'+evtName,evtHandler);
  }

  var removeEvent = function(o,evtName,evtHandler) {
    typeof(attachEvent)=='undefined'?o.removeEventListener(evtName,evtHandler,false):o.detachEvent('on'+evtName,evtHandler);
  }

  var classContains = function(o,cStr) {
    return (typeof(o.className)!='undefined'?o.className.indexOf(cStr)+1:false);
  }

  var s = this;
  var storm = this;
  this.timers = [];
  this.flakes = [];
  this.disabled = false;
  this.terrain = [];
  this.active = false;

  var isIE = navigator.userAgent.match(/msie/i);
  var isIE6 = navigator.userAgent.match(/msie 6/i);
  var isOldIE = (isIE && (isIE6 || navigator.userAgent.match(/msie 5/i)));
  var isWin9X = navigator.appVersion.match(/windows 98/i);
  var isiPhone = navigator.userAgent.match(/iphone/i);
  var isBackCompatIE = (isIE && document.compatMode == 'BackCompat');
  var isOpera = navigator.userAgent.match(/opera/i);
  if (isOpera) isIE = false; // Opera (which may be sneaky, pretending to be IE by default)
  var noFixed = (isBackCompatIE || isIE6 || isiPhone);
  var screenX = null;
  var screenX2 = null;
  var screenY = null;
  var scrollY = null;
  var vRndX = null;
  var vRndY = null;
  var windOffset = 1;
  var windMultiplier = 2;
  var pngSupported = (!isIE || (isIE && !isIE6 && !isOldIE)); // IE <7 doesn't do PNG nicely without crap filters
  var docFrag = document.createDocumentFragment();
  this.oControl = null; // toggle element
  if (flakeLeftOffset == null) flakeLeftOffset = 0;
  if (flakeRightOffset == null) flakeRightOffset = 0;

  function rnd(n,min) {
    if (isNaN(min)) min = 0;
    return (Math.random()*n)+min;
  }

  this.randomizeWind = function() {
    vRndX = plusMinus(rnd(vMaxX,0.2));
    vRndY = rnd(vMaxY,0.2);
    if (this.flakes) {
      for (var i=0; i<this.flakes.length; i++) {
        if (this.flakes[i].active) this.flakes[i].setVelocities();
      }
    }
  }

  function plusMinus(n) {
    return (parseInt(rnd(2))==1?n*-1:n);
  }

  this.scrollHandler = function() {
    // "attach" snowflakes to bottom of window if no absolute bottom value was given
    scrollY = (flakeBottom?0:parseInt(window.scrollY||document.documentElement.scrollTop||document.body.scrollTop));
    if (isNaN(scrollY)) scrollY = 0; // Netscape 6 scroll fix
    if (!flakeBottom && s.flakes) {
      for (var i=0; i<s.flakes.length; i++) {
        if (s.flakes[i].active == 0) s.flakes[i].stick();
      }
    }
  }

  this.resizeHandler = function() {
    if (window.innerWidth || window.innerHeight) {
      screenX = window.innerWidth-(!isIE?16:2)-flakeRightOffset;
      screenY = (flakeBottom?flakeBottom:window.innerHeight);
    } else {
      screenX = (document.documentElement.clientWidth||document.body.clientWidth||document.body.scrollWidth)-(!isIE?8:0)-flakeRightOffset;
      screenY = flakeBottom?flakeBottom:(document.documentElement.clientHeight||document.body.clientHeight||document.body.scrollHeight);
    }
    screenX2 = parseInt(screenX/2);
  }

  this.resizeHandlerAlt = function() {
    screenX = targetElement.offsetLeft+targetElement.offsetWidth-flakeRightOffset;
    screenY = flakeBottom?flakeBottom:targetElement.offsetTop+targetElement.offsetHeight;
    screenX2 = parseInt(screenX/2);
  }

  this.freeze = function() {
    // pause animation
    if (!s.disabled) {
      s.disabled = 1;
    } else {
      return false;
    }
    for (var i=0; i<s.timers.length; i++) {
      clearInterval(s.timers[i]);
    }
  }

  this.resume = function() {
    if (s.disabled) {
       s.disabled = 0;
    } else {
      return false;
    }
    s.timerInit();
  }

  this.toggleSnow = function() {
    if (!s.flakes.length) {
      // first run
      s.start();
      s.setControlActive(true);
    } else {
      s.active = !s.active;
      if (s.active) {
        s.show();
        s.resume();
        s.setControlActive(true);
      } else {
        s.stop();
        s.freeze();
        s.setControlActive(false);
      }
    }
  }

  this.stop = function() {
    this.freeze();
    for (var i=this.flakes.length; i--;) {
      this.flakes[i].o.style.display = 'none';
    }
    removeEvent(window,'scroll',s.scrollHandler);
    removeEvent(window,'resize',s.resizeHandler);
    if (!isIE) {
      removeEvent(window,'blur',s.freeze);
      removeEvent(window,'focus',s.resume);
    }
    // removeEventHandler(window,'resize',this.resizeHandler,false);
  }

  this.show = function() {
    for (var i=this.flakes.length; i--;) {
      this.flakes[i].o.style.display = 'block';
    }
  }

  this.SnowFlake = function(parent,type,x,y) {
    var s = this;
    var storm = parent;
    this.type = type;
    this.x = x||parseInt(rnd(screenX-20));
    this.y = (!isNaN(y)?y:-rnd(screenY)-12);
    this.vX = null;
    this.vY = null;
    this.vAmpTypes = [2.0,1.0,1.25,1.0,1.5,1.75]; // "amplification" for vX/vY (based on flake size/type)
    this.vAmp = this.vAmpTypes[this.type];

    this.active = 1;
    this.o = document.createElement('img');
    this.o.style.position = 'absolute';
    this.o.style.width = flakeWidth+'px';
    this.o.style.height = flakeHeight+'px';
    this.o.style.fontSize = '1px'; // so IE keeps proper size
    this.o.style.zIndex = zIndex;
    this.o.src = imagePath+this.type+(pngSupported && usePNG?'.png':'.gif');
    docFrag.appendChild(this.o);

    this.refresh = function() {
      s.o.style.left = s.x+'px';
      s.o.style.top = s.y+'px';
    }

    this.stick = function() {
      if (noFixed || (targetElement != document.documentElement && targetElement != document.body)) {
	s.o.style.top = (screenY+scrollY-flakeHeight-storm.terrain[Math.floor(s.x)])+'px';
      } else {
        s.o.style.display = 'none';
	s.o.style.top = 'auto';
        s.o.style.bottom = '0px';
	s.o.style.position = 'fixed';
        s.o.style.display = 'block';
      }
    }

    this.vCheck = function() {
      if (s.vX>=0 && s.vX<0.2) {
        s.vX = 0.2;
      } else if (s.vX<0 && s.vX>-0.2) {
        s.vX = -0.2;
      }
      if (s.vY>=0 && s.vY<0.2) {
        s.vY = 0.2;
      }
    }

    this.move = function() {
      var vX = s.vX*windOffset;
      s.x += vX;
      s.y += (s.vY*s.vAmp);
      if (vX >= 0 && (s.x >= screenX || screenX-s.x < (flakeWidth+1))) { // X-axis scroll check
        s.x = 0;
      } else if (vX < 0 && s.x-flakeLeftOffset<0-flakeWidth) {
        s.x = screenX-flakeWidth-1; // flakeWidth;
      }
      s.refresh();
      var yDiff = screenY+scrollY-s.y-storm.terrain[Math.floor(s.x)];
      if (yDiff<flakeHeight) {
        s.active = 0;
        if (snowCollect && snowStick) {
          var height = [0.75,1.5,0.75];
          for (var i=0; i<2; i++) {
            storm.terrain[Math.floor(s.x)+i+2] += height[i];
          }
        }
        s.o.style.left = (s.x/screenX*100)+'%'; // set "relative" left (change with resize)
        if (!flakeBottom) {
	  if (snowStick) {
            s.stick();
	  } else {
	    s.recycle();
	  }
        }
      }

    }

    this.animate = function() {
      // main animation loop
      // move, check status, die etc.
      s.move();
    }

    this.setVelocities = function() {
      s.vX = vRndX+rnd(vMaxX*0.12,0.1);
      s.vY = vRndY+rnd(vMaxY*0.12,0.1);
    }

    this.recycle = function() {
      s.o.style.display = 'none';
      s.o.style.position = 'absolute';
      s.o.style.bottom = 'auto';
      s.setVelocities();
      s.vCheck();
      s.x = parseInt(rnd(screenX-flakeWidth-20));
      s.y = parseInt(rnd(screenY)*-1)-flakeHeight;
      s.o.style.left = s.x+'px';
      s.o.style.top = s.y+'px';
      s.o.style.display = 'block';
      s.active = 1;
    }

    this.recycle(); // set up x/y coords etc.
    this.refresh();

  }

  this.snow = function() {
    var active = 0;
    var used = 0;
    var waiting = 0;
    for (var i=s.flakes.length; i--;) {
      if (s.flakes[i].active == 1) {
        s.flakes[i].move();
        active++;
      } else if (s.flakes[i].active == 0) {
        used++;
      } else {
        waiting++;
      }
    }
    if (snowCollect && !waiting) { // !active && !waiting
      // create another batch of snow
      s.createSnow(flakesMaxActive,true);
    }
    if (active<flakesMaxActive) {
      with (s.flakes[parseInt(rnd(s.flakes.length))]) {
        if (!snowCollect && active == 0) {
          recycle();
        } else if (active == -1) {
          active = 1;
        }
      }
    }
  }

  this.mouseMove = function(e) {
    if (!followMouse) return true;
    var x = parseInt(e.clientX);
    if (x<screenX2) {
      windOffset = -windMultiplier+(x/screenX2*windMultiplier);
    } else {
      x -= screenX2;
      windOffset = (x/screenX2)*windMultiplier;
    }
  }

  this.createSnow = function(limit,allowInactive) {
    for (var i=0; i<limit; i++) {
      s.flakes[s.flakes.length] = new s.SnowFlake(s,parseInt(rnd(flakeTypes)));
      if (allowInactive || i>flakesMaxActive) s.flakes[s.flakes.length-1].active = -1;
    }
    targetElement.appendChild(docFrag);
  }

  this.timerInit = function() {
    s.timers = (!isWin9X?[setInterval(s.snow,20)]:[setInterval(s.snow,75),setInterval(s.snow,25)]);
  }

  this.init = function() {
    for (var i=0; i<2048; i++) {
      s.terrain[i] = 0;
    }
    s.randomizeWind();
    s.createSnow(snowCollect?flakesMaxActive:flakesMaxActive*2); // create initial batch
    addEvent(window,'resize',s.resizeHandler);
    addEvent(window,'scroll',s.scrollHandler);
    if (!isIE) {
      addEvent(window,'blur',s.freeze);
      addEvent(window,'focus',s.resume);
    }
    s.resizeHandler();
    s.scrollHandler();
    if (followMouse) {
      addEvent(document,'mousemove',s.mouseMove);
    }
    s.timerInit();
  }

  var didInit = false;

  this.start = function(bFromOnLoad) {
	if (!didInit) {
	  didInit = true;
	} else if (bFromOnLoad) {
	  // already loaded and running
	  return true;
	}
    if (typeof targetElement == 'string') {
      targetElement = document.getElementById(targetElement);
      if (!targetElement) throw new Error('Snowstorm: Unable to get targetElement');
    }
	if (!targetElement) {
	  targetElement = (!isIE?(document.documentElement?document.documentElement:document.body):document.body);
	}
    if (targetElement != document.documentElement && targetElement != document.body) s.resizeHandler = s.resizeHandlerAlt; // re-map handler to get element instead of screen dimensions
    s.resizeHandler(); // get bounding box elements
    if (screenX && screenY && !s.disabled) {
      s.init();
      s.active = true;
    }
  }

  if (document.addEventListener) {
	// safari 3.0.4 doesn't do DOMContentLoaded, maybe others - use a fallback to be safe.
	document.addEventListener('DOMContentLoaded',function(){s.start(true)},false);
    window.addEventListener('load',function(){s.start(true)},false);
  } else {
    addEvent(window,'load',function(){s.start(true)});
  }

}



snowStorm = new SnowStorm();


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AmigoJack
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Re: Making the Snow Over Phpbb Mod snow other things

Post by AmigoJack » Wed Dec 07, 2011 7:19 am

Solved it. In the JS file find:

Code: Select all

    this.vAmp = this.vAmpTypes[this.type];
Replace with:

Code: Select all

    this.vAmp = this.vAmpTypes[this.type% this.vAmpTypes.length];
Would have never worked with more than 5 pics due to undefined array elements.
The worst thing about censorship is ███████████
Affin wrote:
Tue Nov 20, 2018 9:51 am
The problem is probably not my English but you do not want to understand correctly.
...
We will not come anybody anyway, nevertheless, it's best to shit this.

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Dragonwolf
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Posts: 603
Joined: Mon Aug 20, 2007 7:46 pm

Re: Making the Snow Over Phpbb Mod snow other things

Post by Dragonwolf » Wed Dec 07, 2011 1:09 pm

Cool! Thanks! I'll tell the mod author so they know too. :D

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Re: Making the Snow Over Phpbb Mod snow other things

Post by gavin3171 » Tue Nov 20, 2012 8:27 pm

Very interested to know how you apply png images instead of just the standard round flake? Where do the files go and what edits need to be made?


Im using pro silver 3.0.11 :)

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