diff options
| -rw-r--r-- | public/drawing.html | 69 | ||||
| -rw-r--r-- | public/js/draw2.js | 96 | ||||
| -rw-r--r-- | public/js/palette.js | 46 |
3 files changed, 161 insertions, 50 deletions
diff --git a/public/drawing.html b/public/drawing.html index 8c377b0..4fa7a10 100644 --- a/public/drawing.html +++ b/public/drawing.html @@ -4,62 +4,31 @@ <title>Palette Test</title> <script type="text/javascript" src="/js/jquery-1.9.1.min.js"></script> <script type="text/javascript" src="/js/canvasquery.js"></script> -<script type="text/javascript" src="/js/point.js"></script> -<script type="text/javascript" src="/js/color.js"></script> <script type="text/javascript" src="/js/util.js"></script> +<script type="text/javascript" src="/js/color.js"></script> +<script type="text/javascript" src="/js/point.js"></script> +<script type="text/javascript" src="/js/palette.js"></script> +<script type="text/javascript" src="/js/draw2.js"></script> +<style type="text/css"> +#drawing { + position: relative; +} +#drawing canvas { + position: absolute; + top: 0; + left: 0; +} +</style> </head> <body> <img src="/img/palette.gif" id="palette"> +<div id="color_picker"></div> +<div id="drawing"> + <canvas id="surface"></canvas> + <canvas id="workspace"></canvas> +</div> </body> <script type="text/javascript"> - -$("#palette").load(function(){ - console.log("hello"); - var offset = $("#palette").offset(); - var paletteImg = $("#palette")[0]; - var palette = cq(paletteImg); - var pattern, mask; - var color = new Color( 0, 0, 0 ); - - // $("body").append(palette.canvas); - - $("#palette").click(function(e){ - // they are all 8x8 - // the first one starts at (15, 5), next one is 16 pixels down or to the right - // there are 16 rows and 6 columns, so 92 patterns total - var point = new Point(e, offset); - click(point); - }); - var click = function(point) { - point.subtract({ x: 15, y: 5 }); - point.quantize( 18, 16 ); - point.add({ x: 15, y: 5 }); - - pattern = palette.clone().crop( point.x, point.y, 8, 8 ); - mask = pattern.colorToMask("#fff"); - pattern.applyMask(mask); - patternURI = pattern.clone().blend( color.toString(), "screen", 1.0 ).canvas.toDataURL("image/png"); - document.body.style.backgroundImage = 'url(' + patternURI + ')'; - } - - var random = function(){ - var point = new Point(paletteImg.width, paletteImg.height).scale( Math.random(), Math.random() ).floor(); - click(point); - } - random(); - - for (var i in colors) { - var swatch = colors[i].swatch(); - document.body.appendChild(swatch); - swatch.onclick = function(){ - color = $(this).data("color"); - p = cq(paletteImg); - patternURI = pattern.clone().blend( color.toString(), "screen", 1.0 ).canvas.toDataURL("image/png"); - document.body.style.backgroundImage = 'url(' + patternURI + ')'; - } - } - -}); </script> </html> diff --git a/public/js/draw2.js b/public/js/draw2.js new file mode 100644 index 0000000..7d7ff34 --- /dev/null +++ b/public/js/draw2.js @@ -0,0 +1,96 @@ +$(function(){ + if ($("#workspace").length == 0) return; + var drawing = false; + var color = colors.black; + var brush = new Brush({ style: 'pencil', color: color, width: 10 }); + var workspace = cw("#workspace"); + var lastpoint; + + clearWorkspace(); + + var offset; + + $(workspace).mousedown(function(e){ + drawing = true; + }); + $(window).mousemove(function(e){ + if (drawing) { + newpoint = new Point(e, offset); + if (lastpoint) { + draw(lastpoint, newpoint); + } + lastpoint = newpoint; + } + }); + $(window).mouseup(function(){ + if (drawing) { + drawing = false; + lastpoint = null; + } + $("#chat-message").focus(); + }); + $(window).on("drawing:start", function(){ + offset = $(workspace).offset(); + }); + function clearWorkspace(){ + workspaceCtx.fillStyle = "#fff"; + workspaceCtx.fillRect(0,0,workspace.width,workspace.height); + } + $("#save-drawing").click(function(){ + var uri = workspace.toDataURL("image/png").replace("data:image/png;base64,",""); + console.log(uri.length); + console.log(atob(uri).length); + + var params = { + image: uri, + nick: Game.nick + }; + $.post("/upload", params, function(){ + console.log("saved"); + }); + clearWorkspace(); + $("#drawing").hide(); + }); + + function draw(start, end){ + var halfBrushW = brush.width/2; + var halfBrushH = brush.height/2; + var distance = parseInt( Trig.distanceBetween2Points( start, end ) ); + var angle = Trig.angleBetween2Points( start, end ); + for ( var z=0; (z<=distance || z==0); z += 2 ) { + var x = start.x + (Math.sin(angle) * z) - halfBrushW; + var y = start.y + (Math.cos(angle) * z) - halfBrushH; + workspaceCtx.drawImage(brush.canvas, Math.floor(x), Math.floor(y)); + } + } + +}); + +function Brush (b) { + this.opt = b; + b.height = b.height || b.width; + var canvas = this.canvas = document.createElement("canvas"); + var ctx = this.ctx = canvas.getContext('2d'); + this.width = canvas.width = b.width; + this.height = canvas.height = b.height; + this.color = b.color; + canvas.className = "brush"; + + var hw = canvas.width / 2, hh = canvas.height / 2; + var id = ctx.getImageData( 0, 0, canvas.width, canvas.height ); + var data = id.data; + for (var i = 0; i < canvas.width; i++) { + for (var j = 0; j < canvas.height; j++) { + var mag = Trig.magnitude({ x: i - hw, y: j - hh }); + var offset = (j * canvas.width + i) * 4; + if (offset > data.length) continue; + data[ offset ] = b.color.r; + data[ offset + 1 ] = b.color.g; + data[ offset + 2 ] = b.color.b; + data[ offset + 3 ] = mag < hw ? 255 : 0; + } + } + ctx.putImageData(id, 0, 0); + $("#drawing").append(canvas); +} + diff --git a/public/js/palette.js b/public/js/palette.js new file mode 100644 index 0000000..a2db196 --- /dev/null +++ b/public/js/palette.js @@ -0,0 +1,46 @@ +$("#palette").load(function(){ + console.log("hello"); + var offset = $("#palette").offset(); + var paletteImg = $("#palette")[0]; + var palette = cq(paletteImg); + var pattern, mask; + var color = new Color( 0, 0, 0 ); + + // $("body").append(palette.canvas); + + $("#palette").click(function(e){ + // they are all 8x8 + // the first one starts at (15, 5), next one is 16 pixels down or to the right + // there are 16 rows and 6 columns, so 92 patterns total + var point = new Point(e, offset); + click(point); + }); + var click = function(point) { + point.subtract({ x: 15, y: 5 }); + point.quantize( 18, 16 ); + point.add({ x: 15, y: 5 }); + + pattern = palette.clone().crop( point.x, point.y, 8, 8 ); + mask = pattern.colorToMask("#fff"); + pattern.applyMask(mask); + patternURI = pattern.clone().blend( color.toString(), "screen", 1.0 ).canvas.toDataURL("image/png"); + document.body.style.backgroundImage = 'url(' + patternURI + ')'; + } + + var random = function(){ + var point = new Point(paletteImg.width, paletteImg.height).scale( Math.random(), Math.random() ).floor(); + click(point); + } + random(); + + for (var i in colors) { + var swatch = colors[i].swatch(); + document.body.appendChild(swatch); + swatch.onclick = function(){ + color = $(this).data("color"); + p = cq(paletteImg); + patternURI = pattern.clone().blend( color.toString(), "screen", 1.0 ).canvas.toDataURL("image/png"); + document.body.style.backgroundImage = 'url(' + patternURI + ')'; + } + } +});
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