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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">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.0/jquery-ui.min.js" integrity="sha256-eGE6blurk5sHj+rmkfsGYeKyZx3M4bG+ZlFyA7Kns7E=" crossorigin="anonymous"></script>
<link rel="shortcut icon" href="src/favicon.png" type="image/x-icon">
<script src="Classes/ScenaryObject.js"></script>
<script src="Classes/Animation.js"></script>
<script src="Classes/MainDino.js"></script>
<script src="Classes/Hearts.js"></script>
<script src="Classes/Rock.js"></script>
<script src="Classes/Enemy.js"></script>
<script src="Helpers/Scenary.js"></script>
<script src="Helpers/player.js"></script>
<script src="Helpers/animation.js"></script>
<script src="Helpers/sounds.js"></script>
<link href="https://fonts.googleapis.com/css2?family=MuseoModerno:wght@100;200;300;400;500;531;600;700;800;900&display=swap" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap" rel="stylesheet">
<link rel="stylesheet" href="style.css">
<title>Retrograde Jam</title>
</head>
<body>
<div id="menu" class="menu">
<h1>T-rex of Fire <img src="src/js.png" alt=""></h1>
<div class="button-icon one"><img src="sprites/dino/ak47.png" alt=""><button type="button" onclick="play()">Play</button></div>
<div class="button-icon one"><img src="sprites/dino/ak47.png" alt=""><button class="btn btn-success" onclick=" window.open('https://github.com/AndersonVes/Game-for-Retrograde-Jam','_blank')">Info</button></div>
<div class="button-icon one"><img src="sprites/dino/ak47.png" alt=""><button type="button" onclick="htp()">How to Play</button></div>
<div class="info" id="howtoplay" style="display: none;">
<p>This game was developed for the game jam "<a target="_blank" href="https://itch.io/jam/retrograde-jam">Retrograde Jam</a>". And it aims to provide a SNES game experience.</p>
<p>You are a dinosaur and must escape from some evil cyborgs-dinos. That's it, good luck. Ammunition is on us.</p>
<p>The game's resolution is 256x224, for a more nostalgic experience. And the music, mechanics, programming and sprites are 100% produced by Anderson and Bruno.</p>
<p>We hope you enjoy the game. A hug from Brazil!</p>
<p>Space Bar: Jump - E: FIRE!!</p>
<button type="button" class="button-icon two" onclick="htpClose()">Go back</button>
</div>
</div>
<audio id="jumpAudio" src="sounds/jump.wav"></audio>
<audio id="shootAudio" src="sounds/shot.wav"></audio>
<audio id="collisionAudio" src="sounds/collision.wav"></audio>
<audio id="bgAudio" src="sounds/dinoSong.mp3"></audio>
<audio id="enemyDieAudio" src="sounds/enemyDie.wav"></audio>
<audio id="playerDieAudio" src="sounds/dinodead.mp3"></audio>
<audio id="dinoWinAudio" src="sounds/dinowin.mp3"></audio>
<audio id="wavePassedAudio" src="sounds/dinowave.mp3"></audio>
<script>
var reloadScenary = false;
window.onload = function() {
menuAnimation();
$('#howtoplay').css('display', 'none');
document.addEventListener("visibilitychange", function() {
if (!document.hidden) {
reloadScenary = true;
setTimeout(function() {
destroyScenary();
createScenary();
}, 100)
}
});
};
var posBd = 0;
function menuAnimation() {
setInterval(function() {
posBd++;
$('body').css('background-position', posBd + 'px ' + -posBd + 'px')
}, 30)
}
function htp() {
$('#howtoplay').css('display', 'flex');
$('#menu .button-icon.one').css("display", "none");
$('#menu h1').css("display", "none");
$('#devs').css("display", "none");
}
function htpClose() {
$('#howtoplay').css('display', 'none');
$('#devs').css("display", "block");
$('#menu .button-icon.one').css("display", "flex");
$('#menu h1').css("display", "flex");
}
/* Input Controll */
var shotDown = false;
var newWaveTime = false;
var canvasShaking = false;
var dinosToAk = 20;
var damageMultiplier = 1;
/* Audio */
var jumpAudio = document.getElementById("jumpAudio");
var shootAudio = document.getElementById("shootAudio");
var enemyDieAudio = document.getElementById("enemyDieAudio");
var playerDieAudio = document.getElementById("playerDieAudio");
var dinoWinAudio = document.getElementById("dinoWinAudio");
var wavePassedAudio = document.getElementById("wavePassedAudio");
var bgAudio = document.getElementById("bgAudio");
var collisionAudio = document.getElementById("collisionAudio");
jumpAudio.volume = 0.6;
shootAudio.volume = 0.6;
enemyDieAudio.volume = 0.6;
playerDieAudio.volume = 0.6;
dinoWinAudio.volume = 0.6;
wavePassedAudio.volume = 0.6;
bgAudio.volume = 0.6;
collisionAudio.volume = 0.6;
// Cross-browser support for requestAnimationFrame
var w = window;
requestAnimationFrame = w.requestAnimationFrame || w.webkitRequestAnimationFrame || w.msRequestAnimationFrame || w.mozRequestAnimationFrame;
/* canvas */
var canvas = document.createElement("canvas");
var ctx = canvas.getContext("2d");
var canvasHeight = 224;
var canvasWidth = 256;
$('canvas').css("display", "none");
canvas.width = 256;
canvas.height = 224;
document.body.appendChild(canvas);
/* Game */
// p -> playing
// g -> gameover
var gameState = "n";
var totalTime = 0;
var dinosKilled = 0;
/* Lifes */
const livesTotal = 6;
var livesCurrent;
/* Speeds */
var gameSpeed = 1;
var mountainSpeed = 30;
var cloudSpeed = 50;
var grassSpeed = 150;
var treeSpeed = grassSpeed - 20;
var rockSpeed = grassSpeed - 5;
var dinossaurSpeed = rockSpeed + 20;
/* Positions */
var moutainYpos = 90;
/* Game objects */
var akImage = new Image();
akImage.src = "sprites/dino/ak47.png";
/* Playable dino */
var dino = CreateNewDino();
var mountain1 = "";
var mountain2 = "";
var mountain3 = "";
var mountain4 = "";
var cloud1 = "";
var cloud3 = "";
var cloud4 = "";
var cloud5 = "";
var cloud2 = "";
var grass1 = "";
var grass2 = "";
var grass3 = "";
var grass4 = "";
var grass5 = "";
var tree1 = "";
var tree2 = "";
var flag = "";
var dinoHasAk = false;
setTimeout(function() {
createScenary();
}, 100);
/* Rocks */
var rocks = [];
var timeToInstantiateScenaryObject = ['w', 1, 2, 3, 4, 4.1, 'w', 13, 15, 17, 19, 21, 23, 27, 30, 33, 36, 36.1, 37, 37.1, 40, 42, 45, 48, 49, 50,
52, 53, 55, 56, 57, 62, 62.1, 63, 64, 67, 70, 75, 76, 78, 78.1, 79, 82, 84, 84.1, 85, 87, 88, 89, 91, 91.1, 'w',
94, 96, 96.1, 97, 99, 100
];
/* Enemies */
var enemies = [];
var timeToInstantiateEnemy = [5, 7, 9, 11, 12, 'w', 14, 16, 18, 20, 22, 24, 'w', 25, 26, 28, 29, 31, 32, 34, 35, 'w', 38, 39, 40, 41, 43, 44, 45, 48, 50, 50.5, 'w',
52, 53, 54, 56, 57, 58, 59, 60, 60.5, 61, 63, 63.5, 64, 'w', 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 80.5, 81.5, 'w', 82, 82.5, 83, 85, 85.5, 86, 86.5, 87, 87.5, 89, 90, 90.3, 90.6, 90.9,
93, 94, 95, 96.5, 97, 97.5, 98, 98.3, 98.6, 98.9, 99.2, 99.6, 100, 102, 'f'
];
/* Wave system */
var firstMinuteLoaded = false;
var enemiesLeft = timeToInstantiateEnemy.length;
var waves = 0;
var showWaveTextTime = 4;
var showWaveTextTimeCurrent = 0;
function GetTotalWaves() {
t = 0;
for (var i = 0; i < timeToInstantiateScenaryObject.length; i++) {
if (timeToInstantiateScenaryObject[i] == 'w') t++;
}
for (var i = 0; i < timeToInstantiateEnemy.length; i++) {
if (timeToInstantiateEnemy[i] == 'w') t++;
}
return t;
}
var totalWaves = GetTotalWaves();
function CheckIfWaveFinished() {
if (timeToInstantiateScenaryObject[0] == 'w') {
waves++;
if (waves > 1) wavePassedAudio.play();
showWaveTextTimeCurrent = showWaveTextTime;
if ((livesCurrent + 1) <= livesTotal) livesCurrent++;
timeToInstantiateScenaryObject.shift();
gameSpeed += 0.04;
}
if (timeToInstantiateEnemy[0] == 'w') {
if (showWaveTextTimeCurrent != showWaveTextTime) waves++;
showWaveTextTimeCurrent = showWaveTextTime;
timeToInstantiateEnemy.shift();
if ((livesCurrent + 1) <= livesTotal) livesCurrent++;
gameSpeed += 0.04;
if (waves > 1) wavePassedAudio.play();
}
}
function CheckIfWin() {
if (timeToInstantiateScenaryObject[0] == 'f') {
setTimeout(function() {
gameState = "g";
youWin();
pauseAudios();
dinoWinAudio.play();
}, 0);
} else
if (timeToInstantiateEnemy[0] == 'f') {
setTimeout(function() {
gameState = "g";
youWin();
pauseAudios();
dinoWinAudio.play();
}, 0);
}
}
function RenderWaveText(delta) {
if (showWaveTextTimeCurrent > 0) {
showWaveTextTimeCurrent -= delta / 1000;
if (showWaveTextTimeCurrent < showWaveTextTime - 2) {
ctx.font = "11px 'Press Start 2P'";
ctx.fillStyle = 'white';
ctx.fillText("Wave " + waves + "/" + totalWaves, canvasWidth / 2 - 30, 50);
}
}
}
/* UI */
var hearts = createNewHearts(livesTotal);
var then = "";
function play() {
$('canvas').css("display", "block");
$('#menu').css("display", "none");
$('#devs').css("display", "none");
then = Date.now();
bgAudio.loop = true;
bgAudio.play();
gameState = "p";
main();
livesCurrent = livesTotal;
setTimeout(function() {
createScenary();
}, 100)
}
var Input = function() {
document.addEventListener('keydown', (event) => {
const keyCode = event.keyCode;
switch (keyCode) {
case 32:
dino.jump();
break;
case 69:
if (!shotDown && livesCurrent > 0 && !dinoHasAk) {
shootAudio.play();
dino.shot();
for (i = 0; i < enemies.length; i++) {
if (enemies[i].takeShot(dino.state, dino.posX)) {
break;
}
}
shotDown = true;
}
if (!shotDown && dinoHasAk && livesCurrent > 0) {
shootAudio.play();
dino.shot();
shotDown = true;
setTimeout(function() {
shotDown = false;
}, 100)
for (i = 0; i < enemies.length; i++) {
if (enemies[i].takeShot(dino.state, dino.posX)) {
break;
}
}
}
break;
}
});
document.addEventListener('keyup', (event) => {
const keyCode = event.keyCode;
switch (keyCode) {
case 69:
shotDown = false;
break;
}
});
}
function InstantiateEnemy(type) {
if (type == 1) {
enemies.push(CreateNewEnemy(150, true, 1, 30, 30, 5, canvasWidth, 15));
} else if (type == 2) {
enemies.push(CreateNewEnemy(90, false, 2, 26, 21, 5, canvasWidth, 15));
}
}
function InstantiateRock() {
rocks.push(CreateNewCollisionObject(164, 18, 10, canvasWidth, "sprites/rock.png"));
}
var update = function(delta) {
if (gameState == "n") {
return;
}
if (gameState == "g") {
return;
}
mountain1.move(mountainSpeed * gameSpeed, delta);
mountain2.move(mountainSpeed * gameSpeed, delta);
mountain3.move(mountainSpeed * gameSpeed, delta);
mountain4.move(mountainSpeed * gameSpeed, delta);
cloud1.move(cloudSpeed * gameSpeed, delta);
cloud2.move(cloudSpeed * gameSpeed, delta);
cloud3.move(cloudSpeed * gameSpeed, delta);
cloud4.move(cloudSpeed * gameSpeed, delta);
cloud5.move(cloudSpeed * gameSpeed, delta);
tree1.move(treeSpeed * gameSpeed, delta);
tree2.move(treeSpeed * gameSpeed, delta);
grass1.move(grassSpeed * gameSpeed, delta);
grass2.move(grassSpeed * gameSpeed, delta);
grass3.move(grassSpeed * gameSpeed, delta);
grass4.move(grassSpeed * gameSpeed, delta);
grass5.move(grassSpeed * gameSpeed, delta);
grass5.move(0, delta);
//Scenary objects with collision
if (timeToInstantiateScenaryObject.length >= 1 && totalTime > timeToInstantiateScenaryObject[0]) {
InstantiateRock();
timeToInstantiateScenaryObject.shift();
}
for (j = 0; j < rocks.length; j++) {
rocks[j].move(rockSpeed * gameSpeed, delta);
rocks[j].checkColision(dino.posX, dino.posY, dino.width, dino.height);
}
//Enemies
if (timeToInstantiateEnemy.length >= 1 && totalTime > timeToInstantiateEnemy[0]) {
InstantiateEnemy((Math.floor(Math.random() * 2) + 1));
timeToInstantiateEnemy.shift();
}
for (i = 0; i < enemies.length; i++) {
enemies[i].update(delta, dinossaurSpeed * gameSpeed);
enemies[i].checkColision(dino.posX, dino.posY, dino.width, dino.height);
}
CheckIfWaveFinished();
CheckIfWin();
dino.update(delta);
}
var render = function(delta) {
//If Game over
if (gameState == "g") {
ctx.fillStyle = "#000000"; // black
ctx.fillRect(0, 0, canvas.width, canvasWidth.height);
return;
}
//"ImageSmoothingEnabled = false" for the pixels not to be smoothed
ctx.mozImageSmoothingEnabled = false;
ctx.webkitImageSmoothingEnabled = false;
//Background solid colors
ctx.fillStyle = "#e45c10"; // orange
ctx.fillRect(0, 0, canvas.width, 136);
ctx.fillStyle = "#005800"; // green
ctx.fillRect(0, 136, canvas.width, 89);
ctx.fillStyle = "#000000"; // black
ctx.fillRect(0, 127, canvas.width, 13);
ctx.fillStyle = "#503000"; // brown
ctx.fillRect(0, 160, canvas.width, 25);
cloud1.render(ctx);
cloud2.render(ctx);
cloud3.render(ctx);
cloud4.render(ctx);
cloud5.render(ctx);
mountain1.render(ctx);
mountain2.render(ctx);
mountain3.render(ctx);
mountain4.render(ctx);
tree1.render(ctx);
tree2.render(ctx);
dino.render(ctx, delta);
for (i = 0; i < rocks.length; i++) {
rocks[i].render(ctx);
}
for (i = 0; i < enemies.length; i++) {
enemies[i].render(ctx, delta);
}
grass1.render(ctx);
grass2.render(ctx);
grass3.render(ctx);
grass4.render(ctx);
grass5.render(ctx);
hearts.render(ctx, livesCurrent);
ctx.font = "8px 'Press Start 2P'";
ctx.fillStyle = 'white';
ctx.fillText((dinosKilled + "/" + dinosToAk), canvasWidth - 50, 20);
flag.render(ctx);
RenderWaveText(delta);
};
var main = function() {
var now = Date.now();
var delta = now - then;
Input();
update(delta);
render(delta);
if (showWaveTextTimeCurrent <= 0)
totalTime += delta / 1000;
then = now;
// Request to do this again ASAP (Game loop)
window.requestAnimationFrame(main);
};
function switchToAk47() {
if (!dinoHasAk) {
dinoHasAk = true;
dino.switchImageWeapon();
damageMultiplier = 2;
}
}
function shakeCanvas() {
if (!canvasShaking) {
$('canvas').effect('shake', {
distance: 10
}, 100);
canvasShaking = true;
setTimeout(function() {
canvasShaking = false;
}, 2000);
}
}
function hitTaken() {
shakeCanvas();
livesCurrent--;
dino.takeDamage();
if (livesCurrent <= 0 && enemiesLeft > 0) {
setTimeout(function() {
gameState = "g";
gameOverAnimation();
pauseAudios();
playerDieAudio.play();
}, 0);
}
}
</script>
<div class="bottom-total" id='devs'>
<div class="credits">
<a href="https://github.com/AndersonVes" target="_blank">Anderson Vesguerber</a>
<a href="https://github.com/brunop98" target="_blank">Bruno Poór</a>
</div>
</div>
</body>
</html>