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The-Modding-Tree/js/canvas.js
2020-09-14 17:18:02 -04:00

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JavaScript

var canvas;
var ctx;
window.addEventListener("resize", (_=>resizeCanvas()));
function retrieveCanvasData() {
let treeCanv = document.getElementById("treeCanvas")
let treeTab = document.getElementById("treeTab")
if (treeCanv===undefined||treeCanv===null) return false;
if (treeTab===undefined||treeTab===null) return false;
canvas = treeCanv;
ctx = canvas.getContext("2d");
return true;
}
function resizeCanvas() {
if (!retrieveCanvasData()) return
canvas.width = 0;
canvas.height = 0;
canvas.width = document.getElementById("treeTab").scrollWidth;
canvas.height = document.getElementById("treeTab").scrollHeight;
drawTree();
}
var colors = {
default: {
1: "#ffffff",
2: "#bfbfbf",
3: "#7f7f7f",
},
aqua: {
1: "#bfdfff",
2: "#8fa7bf",
3: "#5f6f7f",
},
}
var colors_theme
function drawTree() {
if (!retrieveCanvasData()) return;
ctx.clearRect(0, 0, canvas.width, canvas.height);
if (layerShown('b')) drawTreeBranch("p", "b")
if (layerShown('g')) drawTreeBranch("p", "g")
if (layerShown('e')) {
drawTreeBranch("b", "e")
drawTreeBranch("g", "e")
}
if (layerShown('t')) drawTreeBranch("b", "t")
if (layerShown('sb')) drawTreeBranch("b", "sb")
if (layerShown('sg')) drawTreeBranch("g", "sg")
if (layerShown('s')) drawTreeBranch("g", "s")
if (layerShown('h')) drawTreeBranch("t", "h")
if (layerShown('q')) drawTreeBranch("e", "q")
if (layerShown('hb')) {
drawTreeBranch("sb", "hb")
drawTreeBranch("t", "hb")
}
if (layerShown('ss')) {
drawTreeBranch("e", "ss")
drawTreeBranch("s", "ss")
}
if (layerShown('hg')) {
drawTreeBranch("sg", "hg")
}
if (layerShown('m')) {
drawTreeBranch("hb", "m")
drawTreeBranch("h", "m")
drawTreeBranch("q", "m")
}
if (layerShown('ba')) {
drawTreeBranch("h", "ba", 2)
drawTreeBranch("q", "ba")
drawTreeBranch("ss", "ba")
}
if (layerShown('sp')) {
drawTreeBranch("m", "sp")
drawTreeBranch("ba", "sp")
}
if (layerShown('l')) {
drawTreeBranch("hb", "l")
drawTreeBranch("m", "l")
}
if (layerShown('ps')) {
drawTreeBranch("h", "ps", 3)
drawTreeBranch("q", "ps", 3)
}
if (layerShown('hs')) {
drawTreeBranch("ss", "hs")
drawTreeBranch("ba", "hs")
}
if (layerShown('i')) {
drawTreeBranch("ss", "i")
drawTreeBranch("sg", "i")
}
if (layerShown('mb')) {
drawTreeBranch("l", "mb")
drawTreeBranch("ps", "mb", 2)
}
if (layerShown('ge')) {
drawTreeBranch("sp", "ge")
}
if (layerShown('ma')) {
drawTreeBranch("hs", "ma")
drawTreeBranch("i", "ma")
}
needCanvasUpdate = false;
}
function drawTreeBranch(num1, num2, color_id = 1) { // taken from Antimatter Dimensions & adjusted slightly
let start = document.getElementById(num1).getBoundingClientRect();
let end = document.getElementById(num2).getBoundingClientRect();
let x1 = start.left + (start.width / 2) + (document.getElementById("treeTab").scrollLeft || document.body.scrollLeft);
let y1 = start.top + (start.height / 2) + (document.getElementById("treeTab").scrollTop || document.body.scrollTop);
let x2 = end.left + (end.width / 2) + (document.getElementById("treeTab").scrollLeft || document.body.scrollLeft);
let y2 = end.top + (end.height / 2) + (document.getElementById("treeTab").scrollTop || document.body.scrollTop);
ctx.lineWidth = 15;
ctx.beginPath();
ctx.strokeStyle = colors_theme[color_id]
ctx.moveTo(x1, y1);
ctx.lineTo(x2, y2);
ctx.stroke();
}