ffmap-backend/html/pacman.js

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2012-06-10 18:54:16 +02:00
d3.timer(pacman)
var a = 0
var p = {x: 0, y: 0}
var pm = vis.append("path")
.style("fill", "#ff0")
.style("stroke", "#000")
.style("stroke-width", 2.5)
.style("stroke-linejoin", "round")
function pacman() {
var size = force.size()
var nodes = force.nodes()
var n = nodes.length
if (n == 0)
return
a = (a + 0.10)%2
pm.attr("d", d3.svg.arc().innerRadius(0)
.outerRadius(24).endAngle(-angle(a) + Math.PI/2 + 2*Math.PI).startAngle(angle(a) + Math.PI/2))
var closest = null
var dd = Infinity;
for (i = 0; i < n; i++) {
var o = nodes[i]
var d = Math.pow((o.x - p.x),2) + Math.pow( o.y - p.y, 2)
if (d < dd) {
dd = d
closest = o
}
}
var dx = closest.x - p.x
var dy = closest.y - p.y
var d = Math.sqrt(Math.pow(dx,2) + Math.pow(dy,2))
dx = dx/d
dy = dy/d
if (d>1) {
p.x += dx
p.y += dy
} else {
var snd;
if (closest.flags.client) {
snd = new Audio("pacman_eatfruit.wav")
} else {
snd = new Audio("pacman_eatghost.wav")
}
snd.play()
data.nodes = data.nodes.filter(function (d) {
return d.id != closest.id
})
data.links = data.links.filter(function (d) {
return d.target.id != closest.id && d.source.id != closest.id
})
update()
}
pm.attr("transform", "matrix(" + [dx, dy, -dy, dx, p.x, p.y].join(",") + ")")
}