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chutes-and-ladders-d3.js
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chutes-and-ladders-d3.js
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//----------------
// Todo:
// * Refactor some repetitive code.
// * More
//-----------------------
// Board parameters
var w = 500;
var h = w;
var spacew = w/10;
var spaceh = h/10;
var pad = 1;
var boardfontsize = 16;
var chutecolor = "tomato";
var laddercolor = "yellowgreen";
// Functions to place data / labels / obstacles in correct position on C&L board.
// The spaces wind up the board from lower left to upper left on 10x10 board.
function spacex(d,i){
if(i % 20 < 10){
return (i*spacew % w) + pad;}
else {
return (w -spacew - (i*spacew % w)) + pad;}
}
function spacey(d,i){return (h - spaceh - Math.floor(i/10)*spaceh) + pad;}
//Data
// Starting board of zeros
var dataset0 = new Array(100)
for (var j=0; j < 100; j++){dataset0[j] = 0.0}
// Create SVG of board
var board = d3.select("#board")
.append("svg")
.attr("width",w)
.attr("height",h);
// Create spaces on board (rows, then spaces)
var rects = board.selectAll("rect")
.data(dataset0)
.enter()
.append("rect")
.attr("x",spacex)
.attr("y",spacey)
.attr("width",spacew-2*pad)
.attr("height",spaceh-2*pad)
.attr("fill", "white")
.attr("stroke","silver")
.attr("stroke-width", 1.0)
.attr("stroke-opacity", 0.5)
.attr("shape-rendering", "crispEdges");
// Add chutes and ladders
var ladders = [[1,38],[4,14],[9,31],[21,42],[28,84],[36,44],[51,67],[71,91],[80,100]];
// Add arrow marker elements
var arrowlist = [chutecolor,laddercolor]
for (var j in arrowlist){
board.append("marker")
.attr("viewBox", "0 -5 10 10")
.attr("refX", 4)
.attr("refY", 0)
.attr("markerWidth", 3)
.attr("markerHeight", 3)
.attr("orient", "auto")
.attr("id",function(){if (j == 0){return "chute-end";} else {return "ladder-end";}})
.attr("fill",arrowlist[j])
.attr("fill-opacity", 0.2)
.append("path")
.attr("d", "M0,-5L10,0L0,5");
}
board.selectAll("line")
.data(ladders)
.enter()
.append("line")
.attr("x1",function(d){return labelx(d[0]-1,d[0]-1);})
.attr("y1",function(d){return labely(d[0]-1,d[0]-1)-boardfontsize/3;})
.attr("x2",function(d){return labelx(d[1]-1,d[1]-1);})
.attr("y2",function(d){return labely(d[1]-1,d[1]-1)-boardfontsize/3;})
.attr("stroke", laddercolor)
.attr("stroke-width", 8)
.attr("stroke-opacity", 0.2)
// Add end arrows
.attr("marker-end","url(#ladder-end)");
var chutes = [[98,78],[95,75],[93,73],[87,24],[64,60],[62,19],[56,53],[49,11],[48,26],[16,6]];
// Concatenate chutes and ladders to draw chutes
ladders.push.apply(ladders,chutes)
board.selectAll("line")
.data(ladders)
.enter()
.append("line")
.attr("x1",function(d){return labelx(d[0]-1,d[0]-1);})
.attr("y1",function(d){return labely(d[0]-1,d[0]-1)-boardfontsize/3;})
.attr("x2",function(d){return labelx(d[1]-1,d[1]-1);})
.attr("y2",function(d){return labely(d[1]-1,d[1]-1)-boardfontsize/3;})
.attr("stroke", chutecolor)
.attr("stroke-width", 8)
.attr("stroke-opacity", 0.2)
// Add end arrows
.attr("marker-end","url(#chute-end)");
// Add number labels to each space
function labelx(d,i){return spacex(d,i) + spacew/2;}
function labely(d,i){return spacey(d,i) + spaceh/2 + boardfontsize/3;}
board.selectAll("text")
.data(dataset0)
.enter()
.append("text")
.text(function(d,i) {return i+1;})
.attr("text-anchor", "middle")
.attr("x", labelx)
.attr("y", labely)
.attr("font-family", "sans-serif")
.attr("font-size", boardfontsize)
.attr("font-weight", "bold")
.attr("fill", "dimgray");
//.attr("stroke","silver");
// Add start and finish labels to board
// board.append("text")
// .attr("x", labelx(0,0))
// .attr("y", labely(0,0)+15)
// .style("fill", "silver")
// //.attr("font-weight", "bold")
// .attr("text-anchor", "middle")
// .text("Start");
board.append("text")
.attr("x", labelx(0,99))
.attr("y", labely(0,99)-15)
.style("fill", "silver")
//.attr("font-weight", "bold")
.attr("text-anchor", "middle")
.text("Finish");
// Add start indicator at edge of first space.
// Remove when animation starts.
board.append("rect")
.attr("id","starter")
.attr("x",spacex(0,0))
.attr("y",spacey(0,0))
.attr("width",2)
.attr("height",spaceh)
.attr("fill", "none")
.attr("stroke","red")
.attr("stroke-width", 2.0)
.attr("stroke-opacity", 0.5)
.attr("shape-rendering", "crispEdges");
function animatestart(){
d3.select("#starter")
.transition()
.duration(500)
.attr("stroke-opacity", 0.0);
};
// Loop through JSON imported data
d3.json("markovboards.json",function(json){
board.on("click", function(){return animateboardloop(json);});
})
// Board animation test
//board.on("click", function(){return animateboardloop(dsets);});
function animateboardloop(dsets) {
//console.log(dsets[dset]);
animatestart();
for (var k in dsets){
animateboard(dsets[k], k);
animateline(dsets[k], k);
animatecounter(k);
animatewin(dsets[k],k);
}
;}
function animateboard(dset,k) {
rects.data(dset)
.transition()
.delay(500*k)
.duration(500)
.attr("fill", function(d) {return "rgb(255," + Math.round(255-d*200.0/1) + "," + Math.round(255-d*200.0/1) + ")";}) // Red
//.attr("fill", function(d) {return "rgb(" + Math.round(255-d*200.0/1) + "," + Math.round(255-d*200.0/1) + ",255)";}) // Blue
};
//------------------------------------------------
// Create SVG line plot of board probabilities
var plotsvgheight = 160
var plotheight = 100
var plotsvgwidth = w
var plotwidth = plotsvgwidth - 80
var lineplot = d3.select("#lineplot")
.append("svg")
.attr("width", plotsvgwidth)
.attr("height", plotsvgheight);
// X scale will fit values from 1-100 within pixels 0-width
var x = d3.scale.linear()
.domain([1, 100])
.range([0, plotwidth]);
// Y scale will fit values from 0-1 within pixels 0-100
var y = d3.scale.linear()
.domain([0, 1])
.range([plotheight, 0]);
// Create a line object
var line = d3.svg.line()
.interpolate("basis") // Spline interpolation
// assign the X function to plot the line
.x(function(d,i) {return x(i+1);})
.y(function(d) {return y(d);});
// Add scale / axes
// x axis
lineplot.selectAll("line")
.data(x.ticks(10))
.enter().append("line")
.attr("x1", x)
.attr("x2", x)
.attr("y1", 0)
.attr("y2", 100)
.style("stroke", "silver")
.attr("stroke-opacity", 0.5)
.attr("shape-rendering", "crispEdges")
.attr("transform", "translate(62,20)");
// Add x axis tick labels
lineplot.selectAll(".rule")
.data(x.ticks(10))
.enter().append("text")
.attr("class","xticks")
.attr("x", x)
.attr("y", plotheight+15)
.style("fill", "dimgrey")
.attr("text-anchor", "middle")
.text(String)
.attr("transform", "translate(62,20)");
// x axis label
lineplot.append("text")
.attr("x", (plotwidth)/2)
.attr("y", plotheight+37)
.style("fill", "dimgrey")
//.attr("font-weight", "bold")
.attr("text-anchor", "middle")
.text("Position on Game Board")
.attr("transform", "translate(62,20)");
// y axis
var yAxisLeft = d3.svg.axis().scale(y).ticks(4).orient("left");
lineplot.append("g")
.attr("class", "y axis")
.attr("transform", "translate(62,20)")
.call(yAxisLeft);
// y axis label
lineplot.append("text")
.attr("transform", "rotate(-90)")
.attr("x", -plotheight/2 - 20)
.attr("y", 20) //plotheight/2)
.style("fill", "dimgrey")
//.attr("font-weight", "bold")
.attr("text-anchor", "middle")
.text("Probability");
// Display the line by appending an svg:path element with the data line created above
lineplot.append("path")
.attr("id","plot")
.attr("d", line(dataset0))
.attr("stroke", "steelblue")
.attr("stroke-width", 2)
.attr("fill","none")
.attr("transform", "translate(62,20)");
// Animate line plot
function animateline(dset,k) {
d3.select("#lineplot #plot")
.transition()
.delay(500*k)
.duration(500)
.attr("d", line(dset))
};
//--------------------------------------
// Moves counter
var counterfontsize = 32;
var counter = d3.select("#counter")
.append("svg")
.attr("width", 2*counterfontsize)
.attr("height", 1.125*counterfontsize)
.append("text")
.text("0")
.attr("text-anchor", "center")
.attr("x", counterfontsize/10)
.attr("y", 1.125*counterfontsize)
.attr("font-family", "sans-serif")
.attr("font-size", counterfontsize)
.attr("font-weight", "bold")
.attr("fill", "dimgray");
// Animate counter
function animatecounter(k) {
d3.select("#counter text")
.transition()
.delay(500*k)
.duration(500)
.text(parseInt(k)+1)
};
//--------------------------------------
// Win display (percent chance)
var counterfontsize = 32;
var counter = d3.select("#win")
.append("svg")
.attr("width", 4.5*counterfontsize)
.attr("height", 1.125*counterfontsize)
.append("text")
.text("0.00%")
.attr("text-anchor", "center")
.attr("x", counterfontsize/10)
.attr("y", 1.125*counterfontsize)
.attr("font-family", "sans-serif")
.attr("font-size", counterfontsize)
.attr("font-weight", "bold")
.attr("fill", "dimgray");
// Animate chance
function animatewin(dset,k) {
d3.select("#win text")
.transition()
.delay(500*k)
.duration(500)
.text((parseFloat(dset[99])*100).toFixed(2) + "%")
};