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n-gon-improved/index.html
landgreen 63bfaba4a1 difficulty 
difficulty rework
  difficulty adjusted through a power up on the initial level
  difficulty parameters are more precisely explained
  JUNK tech: difficulty - spawns a difficulty power up (only works before level 6)

bots no longer benefit from increased fireRate
shields have a chance spawn on almost all mobs (but not stealth mobs)
level exit door animation is 33% faster
power ups have fewer sides.  It might improve game performance, but I can't tell the difference.
1.15x base wave bullets damage (bots, particles, and phonon)
metamaterial absorber 25->30% chance to get power ups from mobs left alive
apomixis is now a JUNK tech, and it requires duplication > 99%
pilot wave field 2->3 extra choices
plasma torch slows mobs more, and don't push mobs back as much
  fixed bug where plasma torch didn't get tech degenerate matter
laserLayerBoss and layerLayer do 33% less damage
mines aren't triggered by invulnerable mobs

bug fixes
2024-06-02 21:43:42 -07:00

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<!DOCTYPE html>
<html lang="en">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="description" content="Browser-based side scrolling video game with the matter.js physics engine.">
<meta name="author" content="Ross Landgreen">
<meta property="og:description" content="Browser-based side scrolling video game with the matter.js physics engine.">
<meta property="og:title" content="n-gon">
<meta name="twitter:title" content="n-gon">
<meta name="twitter:description" content="Browser-based side scrolling video game with the matter.js physics engine.">
<!-- <meta http-equiv="refresh" content="0; url=https://landgreen.github.io/n-gon/"> -->
<title>n-gon</title>
<link rel="stylesheet" href="style.css">
<link rel='shortcut icon' href='favicon.ico' type='image/x-icon' />
</head>
<body>
<div id='guns'></div>
<div id='field'></div>
<div id='tech'></div>
<div id="text-log"></div>
<div id="fade-out"></div>
<div id="health-bg"></div>
<div id="health"></div>
<div id="defense-bar"></div>
<div id="damage-bar"></div>
<div id="dmg"></div>
<div id='construct'></div>
<canvas id="canvas"></canvas>
<div id="choose-grid"></div>
<div id="experiment-grid"></div>
<div style="position: absolute; top:0;left:0;">
<div id="pause-grid-left" class="pause-grid"></div>
</div>
<div style="position: absolute; top:0;right:0;">
<div id="pause-grid-right" class="pause-grid"></div>
</div>
<svg class="SVG-button" id="experiment-button" width="170" height="45" style="border: 2px #333 solid;">
<g stroke='none' fill='#333' stroke-width="2" font-size="30px" font-family="Arial, sans-serif">
<text x="10" y="33">experiment</text>
</g>
</svg>
<svg class="SVG-button" id="training-button" width="120" height="45" style="border: 2px #333 solid;" stroke='none' fill='#333' font-size="30px" font-family="Arial, sans-serif" onclick="simulation.startGame(false, true)">
<text x="10" y="33">training</text>
</svg>
<div id='info'>
<!-- <div id="constraint">
<details id = 'constraint-details'>
<summary>difficulty</summary>
<div class="details-div">
<style>
.grid-container {
display: grid;
grid-template-columns: 0fr 5fr 0fr;
line-height: 150%;
}
#difficulty-slider {
margin-top: 3rem;
height: 30rem;
width: 2rem;
writing-mode: vertical-lr;
/* direction: rtl; */
}
.far-right-column {
display: grid;
grid-template-rows: repeat(6, 1fr);
/* grid-gap: 55px; */
font-size: 2rem;
align-self: center;
justify-self: center;
}
.far-right-column > div{
padding-top: 60px;
}
.left-column {
grid-row: 1 / span 6
}
.right-column {
display: grid;
grid-template-rows: repeat(6, 1fr);
}
.row {
transition: opacity 0.4s ease-out;
border: 2px #000 solid;
margin-top: -2px;;
font-size: 1.2rem;
padding: 10px;
}
#constraint-0{
background-color: hsl(240, 18%, 98%);
border-radius: 10px 10px 0 0;
}
#constraint-1{
background-color: hsl(240, 18%, 96%);;
/* border-radius: 10px 10px 0 0; */
}
#constraint-2{
background-color: hsl(240, 18%, 94%);;
}
#constraint-3{
background-color: hsl(240, 18%, 92%);;
}
#constraint-4{
background-color: hsl(240, 18%, 90%);;
}
#constraint-5{
background-color: hsl(240, 18%, 88%);;
border-radius: 0 0 10px 10px;
}
</style>
<div class="grid-container">
<div class="left-column">
<input type="range" id="difficulty-slider" name="temp" type="range" step="1" value="0" min="0" max="5" list="values" />
<datalist id="values">
<option value="0"></option>
<option value="1"></option>
<option value="2"></option>
<option value="3"></option>
<option value="4"></option>
<option value="5"></option>
</datalist>
</div>
<div class="right-column">
<div class="row" id="constraint-0"><strong>2x</strong> <strong class='color-defense'>damage taken</strong> per level
<br><strong>0.82x</strong> <strong class='color-d'>damage</strong> per level</div>
<div class="row" id="constraint-1"><strong>-5</strong> initial <strong>power ups</strong>
<br><strong>5%</strong> chance for <strong>shielded</strong> mobs</div>
<div class="row" id="constraint-2"><strong>2x</strong> <strong class='color-defense'>damage taken</strong> per level
<br><strong>0.82x</strong> <strong class='color-d'>damage</strong> per level</div>
<div class="row" id="constraint-3"><strong>+1</strong> boss per level, <strong>-1</strong> <strong class='color-m'>tech</strong> per boss
<br><strong>1.5x</strong> mob movement and reactions</div>
<div class="row" id="constraint-4"><strong>2x</strong> <strong class='color-defense'>damage taken</strong> per level
<br><strong>0.82x</strong> <strong class='color-d'>damage</strong> per level</div>
<div class="row" id="constraint-5"><strong>10%</strong> chance for <strong>shielded</strong> mobs
<br><strong>-3</strong> initial power ups</div>
</div>
<div class="far-right-column">
<div id = "constraint-0-record"></div>
<div id = "constraint-1-record"></div>
<div id = "constraint-2-record"></div>
<div id = "constraint-3-record"></div>
<div id = "constraint-4-record"></div>
<div id = "constraint-5-record"></div>
</div>
</div>
confirm difficulty parameters
</div>
</details>
</div> -->
<div id="settings">
<details id = 'settings-details'>
<summary>settings</summary>
<div style="line-height: 150%;" class="details-div">
<!-- <label for="difficulty-select" title="effects: number of mobs, damage done by mobs, damage done to mobs, mob speed, heal effects">combat difficulty:</label>
<select name="difficulty-select" id="difficulty-select" style="background-color: #fff">
<option value="1">easy</option>
<option value="2" selected>normal ⚆</option>
<option value="4">hard ⚆</option>
<option value="5">why ⚇</option>
</select>
<br> -->
<input onclick="build.showImages('settings')" type="checkbox" id="hide-images" name="hide-images" style="width:17px; height:17px;">
<label for="hide-images" title="hide images for fields, guns, and tech">hide images</label>
<br>
<input onclick="build.hideHUD('settings')" type="checkbox" id="hide-hud" name="hide-hud" style="width:17px; height:17px;">
<label for="hide-hud" title="hide: tech, damage taken, damage, in game console, new level animation">minimal HUD</label>
<br>
<label for="fps-select" title="use this to slow the game down">limit frames per second:</label>
<select name="fps-select" id="fps-select">
<option value="max" selected>no cap</option>
<option value="72">72 fps</option>
<option value="60">60 fps</option>
<option value="45">45 fps</option>
<option value="30">30 fps</option>
</select>
<br>
<br>
<input type="checkbox" id="community-maps" name="community-maps" style="width:17px; height:17px;">
<label for="community-maps" title="add about 18 player made levels to the random n-gon level pool">community maps</label>
<!-- style="font-size: 1.5em; color: #058;" -->
<!-- <br>
<label for="body-damage" title="allow damage from the ground and large fast moving blocks">collision damage from blocks:</label>
<input type="checkbox" id="body-damage" name="body-damage" checked style="width:17px; height:17px;"> -->
<br>
<label for="banned" title="type banned levels with a space between them. Example: run temple biohazard">banned levels:</label>
<input id="banned" name="banned" placeholder="list levels by name" autocomplete="off" spellcheck="false" style="width: 182px;" />
<!-- <input list="ban-suggest" id="banned" name="banned" placeholder="list levels by name" autocomplete="off" spellcheck="false" style="width: 182px;" />
<datalist id="ban-suggest">
<option value="testChamber">
<option value="lock">
<option value="sewers">
<option value="satellite">
<option value="aerie">
<option value="office">
<option value="highrise">
<option value="warehouse">
<option value="skyscrapers">
<option value="rooftops">
<option value="pavilion">
<option value="labs">
<option value="______">
<option value="fortress">
<option value="biohazard">
<option value="islands">
<option value="tunnel">
<option value="clock">
<option value="coliseum">
<option value="staircase">
<option value="perplex">
<option value="n-gon">
<option value="downpour">
<option value="buttonbutton">
<option value="vats">
<option value="underpass">
<option value="yingYang">
<option value="basement">
<option value="stronghold">
<option value="commandeer">
<option value="stereoMadness">
<option value="house">
<option value="dripp">
<option value="superNgonBros">
<option value="crossfire">
<option value="temple">
<option value="run">
</datalist> -->
<br>
<label for="classic-select" title="play older versions of n-gon">classic n-gon:</label>
<select name="classic-select" id="classic-select" onChange="window.location.href=this.value">
<option value="https://scratch.mit.edu/projects/14005697/fullscreen/">mech: 2014</option>
<option value="https://scratch.mit.edu/projects/22573757/fullscreen/">spacetime: 2015</option>
<option value="https://scratch.mit.edu/projects/41429974/fullscreen/">ballistics: 2015</option>
<option value="https://scratch.mit.edu/projects/43690666/fullscreen/">portal: 2016</option>
<option value="https://codepen.io/lilgreenland/full/ozXNWZ">side scroller: 2016</option>
<option value="https://codepen.io/lilgreenland/full/wzARJY">side scroller: 2016</option>
<option value="classic/7-1-2017/">LandGame: 2017</option>
<option value="classic/4-15-2018/">n-gon: 2018</option>
<option value="classic/7-11-2019/">n-gon: summer-2019</option>
<option value="classic/9-8-2019/">n-gon: fall-2019</option>
<option value="classic/7-15-2020/">n-gon: summer-2020</option>
<option value="classic/6-1-2021/">n-gon: spring-2021</option>
<option value="classic/11-1-2022/">n-gon: fall-2022</option>
<option value="" selected>current version</option>
</select>
<br>
<label for="seed" title="the randoms seed determines level order, tech choices, and mob types">randomization seed:</label>
<input type="text" id="seed" name="seed" autocomplete="off" spellcheck="false" minlength="1" style="width: 120px;">
<br><span id="previous-seed" style="color:#bbb"></span>
</div>
</details>
</div>
<div>
<details id="control-details">
<summary>controls</summary>
<div class="details-div">
To change controls click a box
<br>and press an unused key.
<br><br>
<table id="control-table">
<tr>
<th>FIRE</th>
<td id='key-fire' class='key-input'>F</td>
<td class='key-used'>MouseLeft</td>
<td></td>
</tr>
<tr>
<th>FIELD</th>
<td id='key-field' class='key-input'>SPACE</td>
<td class='key-used'>MouseRight</td>
</tr>
<tr>
<th>JUMP</th>
<td id='key-up' class='key-input'>W</td>
<td class='key-used'>ArrowUp</td>
</tr>
<tr>
<th>CROUCH</th>
<td id='key-down' class='key-input'>S</td>
<td class='key-used'>ArrowDown</td>
</tr>
<tr>
<th>LEFT</th>
<td id='key-left' class='key-input'>A</td>
<td class='key-used'>ArrowLeft</td>
</tr>
<tr>
<th>RIGHT</th>
<td id='key-right' class='key-input'>D</td>
<td class='key-used'>ArrowRight</td>
</tr>
<tr>
<th>GUN →</th>
<td id='key-next-gun' class='key-input'>Q</td>
<td class='key-used'>MouseWheel</td>
</tr>
<tr>
<th>GUN ←</th>
<td id='key-previous-gun' class='key-input'>E</td>
<td class='key-used'>MouseWheel</td>
</tr>
<tr style="opacity:0.5;">
<th>GUN #</th>
<td id="key-num" class='key-input'>Num</td>
</tr>
<tr>
<th>PAUSE</th>
<td id='key-pause' class='key-input'>P</td>
<!-- <td class='key-used'>Escape</td> -->
<td></td>
</tr>
<tr id="control-testing">
<th>TESTING</th>
<td id='key-testing' class='key-input'>T</td>
<td></td>
</tr>
</table>
<br><button id="control-reset" type="button">reset</button><span style="font-size: 60%;"> to default keys</span>
</div>
</details>
</div>
<div>
<details id="updates">
<summary>updates</summary>
<div id="updates-div" class="details-div" style="font-size: 70%;height: 400px;overflow: scroll;max-width: 800px;"></div>
</details>
</div>
<div>
<details>
<summary>about</summary>
<div class="details-div" style="max-width: 450px;">
n-gon is a solo project written in JavaScript, CSS, and HTML using the matter.js 2-D physics library. It's free and open source on <a href="https://github.com/landgreen/n-gon">Github</a>.
<a id="github" href="https://github.com/landgreen/n-gon" aria-label="github">
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<g stroke='none' font-size="8px" font-family="Arial Black, sans-serif">
<text x="19" y="11">Github</text>
</g>
</svg>
</a>
</div>
</details>
</div>
</div>
<svg id='splash' class="intro ui" viewBox="0 0 800 800" onclick="simulation.startGame()">
<g class="fade-in" transform="translate(100,210) scale(34)" fill='#afafaf' stroke='none'>
<path d="M0 0 h1 v0.2 h1.7 l0.3 0.3 v2.6 h-1 v-1.7 h-1 v1.7 h-1 z" />
<rect x="4" y="1.25" width="1" height="0.5" rx='0.03' />
<path transform="translate(6.9,0) scale(1.25)" d="M0 0 h1 l 0.7 0.7 v2.3 l-0.2 0.2 h-1.8 v-0.5 h1.4 L 1.1 2.4 h-1.1 l -0.7 -0.7 v-1 l 0.7 -0.7 Z" />
<path transform="translate(10.9,0) scale(1.25)" d="M0 0 h1 l 0.7 0.7 v1 l -0.7 0.7 h-1 l -0.7 -0.7 v-1 l 0.7 -0.7 Z" />
<path transform="translate(14,0)" d="M0 0 h1 v0.2 h1.7 l0.3 0.3 v2.6 h-1 v-1.7 h-1 v1.7 h-1 z" />
</g>
<g transform="translate(100,210) scale(34)" fill='none' stroke='#333' stroke-linejoin="round" stroke-linecap="round">
<path class="draw-lines" d="M0 0 h1 v0.2 h1.7 l0.3 0.3 v2.6 h-1 v-1.7 h-1 v1.7 h-1 z" stroke-width='0.0875' />
<rect class="draw-lines-dash" x="4" y="1.25" width="1" height="0.5" stroke-width='0.0875' rx='0.03' />
<path class="draw-lines-g" transform="translate(6.9,0) scale(1.25)" d="M0 0 h1 l 0.7 0.7 v2.3 l-0.2 0.2 h-1.8 v-0.5 h1.4 L 1.1 2.4 h-1.1 l -0.7 -0.7 v-1 l 0.7 -0.7 Z" stroke-width='0.07' />
<path class="draw-lines-o" transform="translate(10.9,0) scale(1.25)" d="M0 0 h1 l 0.7 0.7 v1 l -0.7 0.7 h-1 l -0.7 -0.7 v-1 l 0.7 -0.7 Z" stroke-width='0.07' />
<path class="draw-lines" transform="translate(14,0)" d="M0 0 h1 v0.2 h1.7 l0.3 0.3 v2.6 h-1 v-1.7 h-1 v1.7 h-1 z" stroke-width='0.0875' />
</g>
<!-- mouse -->
<g class="draw-lines3" transform="translate(290,430) scale(0.28)" stroke-linecap="round" stroke-linejoin="round" stroke-width="10px" stroke="#333" fill="none">
<path class="fade-in" stroke="none" fill="#fff" d="M827,112 h30 a140,140,0,0,1,140,140 v268 a140,140,0,0,1-140,140 h-60 a140,140,0,0,1-140-140v-268 a140,140,0,0,1,140-140h60" />
<path class="fade-in" d="M832.41,106.64 V322 H651.57 V255 c0-82,67.5-148,150-148 Z" fill="rgb(0, 200, 255)" stroke="none" />
<path d="M827,112 h30 a140,140,0,0,1,140,140 v268 a140,140,0,0,1-140,140 h-60 a140,140,0,0,1-140-140v-268 a140,140,0,0,1,140-140h60" />
<path d="M657 317 h340 h-170 v-25 m0 -140 v-42 s 21 -59, -5 -59 S 807 7, 807 7" />
<ellipse fill="none" cx="827.57" cy="218.64" rx="29" ry="68" />
<ellipse fill="#fff" class="fade-in-fast" cx="827.57" cy="218.64" rx="29" ry="68" />
</g>
<!-- keys -->
<g transform="translate(195,480) scale(0.8)">
<!-- fade in background -->
<g fill='#fff' stroke='none' class="fade-in">
<path d="M0 60 h60 v-60 h-60 v60" class="draw-lines-box-1" />
<path d="M70 60 h60 v-60 h-60 v60" class="draw-lines-box-2" />
<path d="M140 60 h60 v-60 h-60 v60" class="draw-lines-box-3" />
<path d="M0 70 h60 v60 h-60 v-60" class="draw-lines-box-1" />
<path d="M70 70 h60 v60 h-60 v-60" class="draw-lines-box-2" />
<path d="M140 70 h60 v60 h-60 v-60" class="draw-lines-box-3" />
</g>
<g fill='none' stroke='#333' stroke-width="3.5" stroke-linejoin="round" stroke-linecap="round">
<path d="M0 60 h60 v-60 h-60 v60" class="draw-lines-box-1" />
<path d="M70 60 h60 v-60 h-60 v60" class="draw-lines-box-2" />
<path d="M140 60 h60 v-60 h-60 v60" class="draw-lines-box-3" />
<path d="M0 70 h60 v60 h-60 v-60" class="draw-lines-box-1" />
<path d="M70 70 h60 v60 h-60 v-60" class="draw-lines-box-2" />
<path d="M140 70 h60 v60 h-60 v-60" class="draw-lines-box-3" />
</g>
<g class="draw-lines4" text-anchor="middle" stroke='#000' fill='none' stroke-width="2" font-size="38px" font-family="Arial Black, sans-serif">
<text x="30" y="45" id="splash-previous-gun" stroke-width="2">Q</text>
<text x="100" y="45" id="splash-up">W</text>
<text x="170" y="45" id="splash-next-gun" stroke-width="2">E</text>
<text x="30" y="113" id="splash-left">A</text>
<text x="100" y="113" id="splash-down">S</text>
<text x="170" y="113" id="splash-right">D</text>
</g>
</g>
<g class="fade-in" fill="none" stroke="#aaa" stroke-width="1">
<path d="M 254 433.5 h-35.5 v40" />
<path d="M 295 433.5 h36.5 v40" />
<path d="M 274 625 v-35" />
<path d="M 430.5 442 v50 h38" />
<path d="M 612.5 442 v50 h-38" />
</g>
<g class="fade-in" stroke="none" fill="#aaa" font-size="16px">
<text x="253" y="422">switch</text>
<text x="257" y="438">guns</text>
<text x="255" y="638">move</text>
<text x="420" y="438">fire</text>
<text x="599" y="438">field</text>
</g>
</svg>
<script src='lib/matter.min.js'></script>
<!-- <script src='lib/decomp.min.js'></script> -->
<script src="js/simulation.js"></script>
<script src="js/player.js"></script>
<script src="js/powerup.js"></script>
<script src="js/tech.js"></script>
<script src="js/bullet.js"></script>
<script src="js/mob.js"></script>
<script src="js/spawn.js"></script>
<script src="js/level.js"></script>
<script src="js/lore.js"></script>
<script src="js/engine.js"></script>
<script src="js/index.js"></script>
</body>
</html>
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