Small-projects/Geometry.html at main · Soul2606/Small-projects · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Document</title>
	<link rel="stylesheet" href="style.css">
<style>


body{
	margin: 0;
}

header{
	padding: 15px 0;
	border-bottom: solid white 2px;
}

.svg-debug{
	stroke: rgb(95, 95, 95);
	stroke-width: 2px;
}

.sidebar{
	min-width: 250px;
	border: solid white 2px;
	padding-left: 5px;
}


</style>
</head>
<body>

	<header>
		<div class="flex">
			<button id="add-point-button">Add point</button>
			<p id="debug-current-action"></p>
		</div>
	</header>

	<div class="flex">
		<svg height="500" width="100%" id="main-svg">
			<rect class="svg-debug" x="0" y="0" width="100%" height="100%" stroke-width="4px" fill="red" fill-opacity="0" />
			<line class="svg-debug" x1="0%" y1="0%" x2="100%" y2="100%"/>
			<!--Injected by script-->
		</svg>
		<div class="sidebar" id="sidebar">
			<p id="sidebar-type">none</p>
			<p id="sidebar-name">none</p>
			<button id="add-line-button">Add line</button>
		</div>
	</div>

<script>


const main_svg = document.getElementById("main-svg")
const sidebar = document.getElementById('sidebar')
const sidebar_type = document.getElementById('sidebar-type')
const sidebar_name = document.getElementById('sidebar-name')
const svgns = "http://www.w3.org/2000/svg"
const mouse_position = {x:0,y:0}

let current_action = "none"
let selected_object
let drag_point_interval_id


setInterval(()=>{
	document.getElementById("debug-current-action").textContent = current_action
})


main_svg.addEventListener("mousemove", (e)=>{
	mouse_position.x = e.offsetX
	mouse_position.y = e.offsetY
})


function get_point_position(point){
	console.log(point.cx.baseVal.value, point.cy.baseVal.value)
	return{x:point.cx.baseVal.value, y:point.cy.baseVal.value}
}


function drag_point(point){
	point.cx.baseVal.value = mouse_position.x
	point.cy.baseVal.value = mouse_position.y
}


function create_point(pos_x, pos_y, name){
    const circle = document.createElementNS(svgns, 'circle')
    circle.setAttributeNS(null, 'cx', pos_x)
    circle.setAttributeNS(null, 'cy', pos_y)
    circle.setAttributeNS(null, 'r', '8px')
    circle.setAttributeNS(null, 'fill', 'rgb(29, 31, 37)')
    circle.setAttributeNS(null, 'stroke-width', '4px')
    circle.setAttributeNS(null, 'stroke', 'white')
	circle.addEventListener("click", ()=>{
		if(current_action === "add_line"){
			const pos_1 = get_point_position(circle)
			const pos_2 = get_point_position(selected_object)
			main_svg.appendChild(create_line(pos_1.x, pos_1.y, pos_2.x, pos_2.y))
			current_action = "none"
		}
		select(name, 'point', circle)
	})


	circle.addEventListener("mousedown", ()=>{
		if(current_action === "none"){
			current_action = "drag_point"
			drag_point_interval_id = setInterval(drag_point, 10, circle)
		}
	})


	circle.addEventListener("mouseup", ()=>{
		if(current_action === "drag_point"){
			current_action = "none"
			clearInterval(drag_point_interval_id)
		}
	})


	return circle
}


function create_line(x1, y1, x2, y2){
	const line = document.createElementNS(svgns, "line")
	line.setAttributeNS(null, "x1", x1)
	line.setAttributeNS(null, "y1", y1)
	line.setAttributeNS(null, "x2", x2)
	line.setAttributeNS(null, "y2", y2)
	line.setAttributeNS(null, 'stroke-width', '4px')
	line.setAttributeNS(null, 'stroke', 'white')
	return line
}


function select(name, type, element){
	sidebar_name.textContent = name
	sidebar_type.textContent = type
	selected_object = element
	console.log(selected_object)
}


document.getElementById("add-point-button").addEventListener("click", ()=>{
    main_svg.appendChild(create_point(250, 250, "a"));
})


document.getElementById("add-line-button").addEventListener("click", ()=>{

	const position = get_point_position(selected_object)
	console.log(position.x, position.y)

	if(current_action = "none"){

		current_action = "add_line"

	}

})


</script>
</body>
</html>