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var playoff = {
settings: {
'winner_h_offset': 5,
'loser_h_offset': 20,
'place_winner_h_offset': 10,
'place_loser_h_offset': 15,
'finish_winner_h_offset': 5,
'finish_loser_h_offset': 20,
'winner_v_offset': -10,
'loser_v_offset': 10,
'place_winner_v_offset': 2,
'place_loser_v_offset': 9,
'finish_winner_v_offset': -4,
'finish_loser_v_offset': 4,
'loser_colour': '#ff0000',
'winner_colour': '#00ff00',
'place_loser_colour': '#dddd00',
'place_winner_colour': '#00dddd',
'finish_loser_colour': '#ff0000',
'finish_winner_colour': '#00ff00'
},
drawLine: function(ctx, line) {
ctx.beginPath();
ctx.moveTo(line[0], line[1]);
ctx.lineTo(line[2], line[3]);
ctx.stroke();
},
loadSettings: function(canvas, defaults) {
for (var setting in defaults) {
var attr = 'data-' + setting.replace(/_/g, '-');
var attr_value = canvas.getAttribute(attr);
if (attr_value) {
defaults[setting] = attr_value;
}
}
return defaults;
},
run: function() {
var boxes = document.getElementsByClassName('playoff_matchbox');
var lines = {
'winner': {},
'loser': {},
'place-winner': {},
'place-loser': {},
'finish-winner': {},
'finish-loser': {}
};
var boxes_idx = {};
for (var b = 0; b < boxes.length; b++) {
var id = boxes[b].getAttribute('data-id');
boxes_idx[id] = boxes[b];
for (var attr in lines) {
var value = boxes[b].getAttribute('data-' + attr);
if (value) {
if (!lines[attr][value]) {
lines[attr][value] = [];
}
lines[attr][value].push(id);
}
}
}
var canvas = document.getElementById('playoff_canvas');
this.settings = this.loadSettings(canvas, this.settings);
var lineMethods = {
'place-winner': 'to',
'place-loser': 'to',
'finish-winner': 'midpoint',
'finish-loser': 'midpoint',
'winner': 'midpoint',
'loser': 'midpoint'
};
var lineCalculator = {
correctLines: function(hLines, vLine, comparator) {
for (var l1 in hLines) {
for (var l2 in hLines) {
hLines[l1][2] = comparator(hLines[l1][2], hLines[l2][2]);
hLines[l2][2] = hLines[l1][2];
}
}
for (var l1 in hLines) {
vLine[0] = vLine[2] = comparator(hLines[l1][2], vLine[2]);
vLine[1] = Math.min(vLine[1], hLines[l1][3]);
vLine[3] = Math.max(vLine[3], hLines[l1][3]);
}
},
template: function() {
return {
hFrom: [],
vFrom: [0, canvas.height, 0, 0],
hTo: [],
vTo: [canvas.width, canvas.height, canvas.width, 0],
midpoints: []
}
},
from: function(from, to, hOffset, vOffset) {
var lines = this.template();
for (var f = 0; f < from.length; f++) {
var box = boxes_idx[from[f]];
var line = [
Math.floor(parseInt(box.offsetLeft) + parseInt(box.clientWidth)),
Math.floor(parseInt(box.offsetTop) + 0.5 * parseInt(box.clientHeight) + vOffset),
Math.floor(parseInt(box.offsetLeft) + parseInt(box.clientWidth) + hOffset),
Math.floor(parseInt(box.offsetTop) + 0.5 * parseInt(box.clientHeight) + vOffset)
];
lines.hFrom.push(line);
}
this.correctLines(lines.hFrom, lines.vFrom, Math.max);
for (var t = 0; t < to.length; t++) {
var box = boxes_idx[to[t]];
var line = [
Math.floor(parseInt(box.offsetLeft)),
Math.floor(parseInt(box.offsetTop) + 0.5 * parseInt(box.clientHeight) + vOffset),
lines.vFrom[0],
Math.floor(parseInt(box.offsetTop) + 0.5 * parseInt(box.clientHeight) + vOffset)
];
lines.hTo.push(line);
}
this.correctLines(lines.hTo, lines.vTo, Math.min);
lines.midpoints = [
[lines.vFrom[0], lines.vFrom[1]],
[lines.vTo[0], lines.vTo[1]]
];
return lines;
},
to: function(from, to, hOffset, vOffset) {
var lines = this.template();
for (var t = 0; t < to.length; t++) {
var box = boxes_idx[to[t]];
var line = [
parseInt(box.offsetLeft),
Math.floor(parseInt(box.offsetTop) + 0.5 * parseInt(box.clientHeight) + vOffset),
Math.floor(parseInt(box.offsetLeft) - hOffset),
Math.floor(parseInt(box.offsetTop) + 0.5 * parseInt(box.clientHeight) + vOffset)
];
lines.hTo.push(line);
}
this.correctLines(lines.hTo, lines.vTo, Math.min);
for (var f = 0; f < from.length; f++) {
var box = boxes_idx[from[f]];
var line = [
Math.floor(parseInt(box.offsetLeft) + parseInt(box.clientWidth)),
Math.floor(parseInt(box.offsetTop) + 0.5 * parseInt(box.clientHeight) + vOffset),
lines.vTo[0],
Math.floor(parseInt(box.offsetTop) + 0.5 * parseInt(box.clientHeight) + vOffset)
];
lines.hFrom.push(line);
}
this.correctLines(lines.hFrom, lines.vFrom, Math.max);
lines.midpoints = [
[lines.vFrom[0], lines.vFrom[1]],
[lines.vTo[0], lines.vTo[1]]
];
return lines;
},
midpoint: function(from, to, hOffset, vOffset) {
var lines = this.template();
for (var f = 0; f < from.length; f++) {
var box = boxes_idx[from[f]];
var line = [
Math.floor(parseInt(box.offsetLeft) + parseInt(box.clientWidth)),
Math.floor(parseInt(box.offsetTop) + 0.5 * parseInt(box.clientHeight) + vOffset),
Math.floor(parseInt(box.offsetLeft) + parseInt(box.clientWidth) + hOffset),
Math.floor(parseInt(box.offsetTop) + 0.5 * parseInt(box.clientHeight) + vOffset)
];
lines.hFrom.push(line);
}
this.correctLines(lines.hFrom, lines.vFrom, Math.max);
for (var t = 0; t < to.length; t++) {
var box = boxes_idx[to[t]];
var line = [
parseInt(box.offsetLeft),
Math.floor(parseInt(box.offsetTop) + 0.5 * parseInt(box.clientHeight) + vOffset),
Math.floor(parseInt(box.offsetLeft) - hOffset),
Math.floor(parseInt(box.offsetTop) + 0.5 * parseInt(box.clientHeight) + vOffset)
];
lines.hTo.push(line);
}
this.correctLines(lines.hTo, lines.vTo, Math.min);
lines.midpoints = [
[
(lines.vFrom[0] + lines.vFrom[2]) / 2,
(lines.vFrom[1] + lines.vFrom[3]) / 2
],
[
hOffset / 2 + (lines.vFrom[0] + lines.vFrom[2] + lines.vTo[0] + lines.vTo[2]) / 4,
(lines.vFrom[1] + lines.vFrom[3]) / 2
],
[
hOffset / 2 + (lines.vFrom[0] + lines.vFrom[2] + lines.vTo[0] + lines.vTo[2]) / 4,
(lines.vTo[1] + lines.vTo[3]) / 2
],
[
(lines.vTo[0] + lines.vTo[2]) / 2,
(lines.vTo[1] + lines.vTo[3]) / 2
]
]
return lines;
}
};
var ctx = canvas.getContext('2d');
for (var type in lines) {
styleType = type.replace('-', '_');
ctx.strokeStyle = this.settings[styleType + '_colour'];
for (var from in lines[type]) {
var to = lines[type][from];
from = from.split(' ');
var linesToDraw = lineCalculator[lineMethods[type]](
from, to,
this.settings[styleType + '_h_offset'], this.settings[styleType + '_v_offset']);
for (var l in linesToDraw.hFrom) {
this.drawLine(ctx, linesToDraw.hFrom[l]);
}
this.drawLine(ctx, linesToDraw.vFrom);
for (var l in linesToDraw.hTo) {
this.drawLine(ctx, linesToDraw.hTo[l]);
}
this.drawLine(ctx, linesToDraw.vTo);
for (var m = 0; m < linesToDraw.midpoints.length-1; m++) {
this.drawLine(ctx, [
linesToDraw.midpoints[m][0], linesToDraw.midpoints[m][1],
linesToDraw.midpoints[m+1][0], linesToDraw.midpoints[m+1][1]
]);
}
}
}
}
}
playoff.run();
|
