added win popup

src/js/main.js

@@ -2,6 +2,9 @@
 	location.hash='';
 
 	const assets=require('assets');
+	const Popup=require('popup');
+	const SnekGame=require('snek');
+
 	await new Promise(ok => assets.onReady(ok));
 
 	const main=document.querySelector('main');
@@ -73,6 +76,10 @@
 		if(!config.gamepad.buffer) inputs.clearBuffer=true;
 	};
 
+	const startGame=async (category, filename) => {
+		//TODO migrate relevant code here
+	};
+
 	window.addEventListener('hashchange', async () => {
 		nav.classList.add('hidden');
 
@@ -83,7 +90,6 @@
 			return await resp.json();
 		})();
 
-		const SnekGame=require('snek');
 		const snek=new SnekGame(level, canvas, rules);
 		canvas.classList.remove('hidden');
 		snek.start();
@@ -91,6 +97,21 @@
 			if(evt=='tick') {
 				if(navigator.getGamepads) handleGamepads();
 				snek.handleInputs(currentInputs);
+			} else if(evt=='win') {
+				let popup=new Popup("Finished!");
+				popup.addStrong("You won!");
+				popup.addContent({
+					"Time": snek.playTime/1000+'s',
+					"Score": snek.score,
+					"Final length": snek.snake.length
+				});
+				popup.buttons={
+					retry: "Retry",
+					next: "Next level",
+					menu: "Main menu"
+				};
+				popup.display();
+				//TODO do something with the result
 			}
 		};
 		currentGame=snek;

src/js/popup.js

@@ -0,0 +1,87 @@
+const objToDom=obj => {
+	if(obj[Popup.EM]) {
+		let em=document.createElement('em');
+		em.appendChild(document.createTextNode(obj[Popup.EM]));
+		return em;
+	} else if(obj[Popup.STRONG]) {
+		let em=document.createElement('strong');
+		em.appendChild(document.createTextNode(obj[Popup.STRONG]));
+		return em;
+	} else if(typeof obj=='string' || typeof obj=='number') {
+		return document.createTextNode(obj+'');
+	} else if(Array.isArray(obj)) {
+		let ul=document.createElement('ul');
+		obj.forEach(elem => ul.appendChild(objToDom(elem)));
+		return ul;
+	} else {
+		let table=document.createElement('table');
+		Object
+			.keys(obj)
+			.forEach(key => {
+				let tr=table.appendChild(document.createElement('tr'));
+				tr.appendChild(document.createElement('th')).appendChild(document.createTextNode(key));
+				tr.appendChild(document.createElement('td')).appendChild(objToDom(obj[key]));
+			});
+		return table;
+	}
+}
+
+class Popup {
+	constructor(title, content=[], buttons={}) {
+		this.title=title;
+		this.content=content.map(objToDom);
+		this.buttons={...buttons};
+	}
+
+	addContent(cnt) {
+		this.content.push(objToDom(cnt));
+	}
+	addText(cnt) {
+		this.content.push(document.createTextNode(cnt));
+	}
+	addEm(cnt) {
+		this.content.push(objToDom({[Popup.EM]: cnt}));
+	}
+	addStrong(cnt) {
+		this.content.push(objToDom({[Popup.STRONG]: cnt}));
+	}
+
+	async display() {
+		let outer=document.createElement('div');
+		outer.classList.add('popup');
+		let popup=outer.appendChild(document.createElement('div'));
+		popup.classList.add('content');
+
+		let title=popup.appendChild(document.createElement('h1'));
+		title.innerText=this.title;
+
+		let contentSection=popup.appendChild(document.createElement('section'));
+		this.content.forEach(elem => contentSection.appendChild(elem));
+
+		let buttonSection=popup.appendChild(document.createElement('section'));
+		let buttons=Object.keys(this.buttons).map(btn => {
+			let button=document.createElement('button');
+			button.innerText=this.buttons[btn];
+			button.dataset.code=btn;
+			return button;
+		});
+		buttons.forEach(btn => buttonSection.appendChild(btn));
+
+		document.body.appendChild(outer);
+
+		const code=await Promise.race(buttons.map(btn => new Promise(ok => {
+			btn.addEventListener('click', e => {
+				e.preventDefault();
+				return ok(btn.dataset.code);
+			});
+		})));
+
+		document.body.removeChild(outer);
+		return code;
+	}
+}
+
+Popup.EM=Symbol('EM');
+Popup.STRONG=Symbol('STRONG');
+
+return module.exports=Popup;

src/js/snek.js

@@ -293,6 +293,9 @@ class SnekGame {
 					([x, y]) => !(x==head[0] && y==head[1])
 				);
 
+				// increase score
+				this.score++;
+
 				// custom rules
 				if(this.rules.fruitRegrow) {
 					const emptyCells=this.world
@@ -409,9 +412,9 @@ class SnekGame {
 		this.firstStep=Date.now();
 		this.tickId=0;
 		this.playing=true;
+		this.score=0;
 		requestAnimationFrame(() => this.tick());
 	}
 }
 
-module.exports=SnekGame;
+return module.exports=SnekGame;
-return SnekGame;

src/less/popup.less

@@ -1,14 +1,15 @@
 @keyframes popupAppear {
 	0% {
-		background: transparent;
+		background: rgba(0, 0, 0, 0%);
 	}
 	100% {
-		background: black;
+		background: rgba(0, 0, 0, 90%);
 	}
 }
 
 .popup {
-	animation: popupAppear 1s linear no-repeat;
+	animation: popupAppear 1s linear;
+	background: rgba(0, 0, 0, 90%);
 
 	position: absolute;
 	top: 0;
@@ -18,12 +19,80 @@
 
 	.content {
 		border-radius: 2rem;
-		background: @accentbg;
+		background: @bg;
 		text-align: center;
+		box-shadow: black 0 0 1rem;
 
-		postion: absolute;
+		position: absolute;
 		top: 50%;
 		left: 50%;
 		transform: translate(-50%, -50%);
+		box-sizing: border-box;
+
+		max-width: 50vw;
+		max-height: 50vh;
+
+		padding: 2rem;
+		display: flex;
+		flex-direction: column;
+
+		font-size: 1.4rem;
+
+		& > section {
+			margin: 1rem;
+
+			&:first-of-type {
+				display: flex;
+				flex-direction: column;
+				align-items: center;
+
+				& > * {
+					margin: .5rem;
+				}
+			}
+
+			&:last-of-type {
+				display: flex;
+
+				& > * {
+					flex: 1;
+				}
+			}
+		}
+
+		table {
+			display: flex;
+			flex-direction: column;
+			width: 100%;
+
+			tr {
+				display: flex;
+			}
+			th {
+				text-align: right;
+				&::after {
+					content: ':';
+				}
+			}
+			td {
+				text-align: left;
+			}
+			th, td {
+				padding: 0 .5rem;
+				flex: 1;
+			}
+		}
+
+		button {
+			display: inline;
+			color: @accentfg;
+			background: @accentbg;
+			font-weight: bold;
+
+			border-radius: 1rem;
+			border: 0;
+			padding: 2rem;
+			margin: 1rem;
+		}
 	}
 }