73 lines
1.7 KiB
JavaScript
73 lines
1.7 KiB
JavaScript
function pacman() {
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var angle = d3.scale.linear()
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.domain([0, 1, 2, 3])
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.range([0.01, Math.PI/4, 0.01, Math.PI/4])
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d3.timer(pacman_animate)
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var a = 0
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var p = {x: 0, y: 0}
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var pm = vis.append("path")
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.style("fill", "#ff0")
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.style("stroke", "#000")
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.style("stroke-width", 2.5)
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.style("stroke-linejoin", "round")
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function pacman_animate() {
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var size = force.size()
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var nodes = force.nodes()
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var n = nodes.length
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if (n == 0)
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return
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a = (a + 0.10)%2
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pm.attr("d", d3.svg.arc().innerRadius(0)
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.outerRadius(24).endAngle(-angle(a) + Math.PI/2 + 2*Math.PI).startAngle(angle(a) + Math.PI/2))
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var closest = null
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var dd = Infinity;
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for (i = 0; i < n; i++) {
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var o = nodes[i]
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var d = Math.pow((o.x - p.x),2) + Math.pow( o.y - p.y, 2)
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if (d < dd) {
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dd = d
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closest = o
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}
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}
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var dx = closest.x - p.x
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var dy = closest.y - p.y
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var d = Math.sqrt(Math.pow(dx,2) + Math.pow(dy,2))
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dx = dx/d
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dy = dy/d
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if (d>8) {
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p.x += dx * 2
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p.y += dy * 6
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} else {
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var snd;
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if (closest.flags.client) {
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snd = new Audio("pacman_eatfruit.wav")
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} else {
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snd = new Audio("pacman_eatghost.wav")
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}
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snd.play()
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data.nodes = data.nodes.filter(function (d) {
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return d.id != closest.id
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})
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data.links = data.links.filter(function (d) {
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return d.target.id != closest.id && d.source.id != closest.id
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})
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update()
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}
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pm.attr("transform", "matrix(" + [dx, dy, -dy, dx, p.x, p.y].join(",") + ")")
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}
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}
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