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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>404 : Road Not Found</title>
<style type="text/css">
body{
background: #444;
display: flex;
margin: 0;
align-items: center;
justify-content: center;
height: 100vh;
}
</style>
</head>
<body>
<canvas id="c"></canvas>
<script type="text/javascript">
// SFX
const bird1 = "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";
const bird2 = "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";
const bird3 = "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";
const ambient = "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";
let bird1Buffer, bird2Buffer, bird3Buffer, ambientBuffer,
actx, actxInitialized, birdGain, notesGain, ambientGain;
// SPRITES
const SPRITE_MAN_BACK = "!!!!`!!!!!!!!!!!!`6`!!!!!!!!!!``66````!!!!!`66666666`!!!!!`66666666`!!!`6666666666`!!`6666666666`!!``66666666``!`K`6`6666`6`K``KK```66```KK`!`KK``````KK`!!Q`KKKKKKKK`$!!Q=`_KKKKP`.$!!-\\_``````P\\-!-)\\_``````P\\)--,[````````LY-!0O``KF;K``O]!!!0````````]!!!!-Y``````,-!!!!-YIIP_++,-!!!!!-]]Q$00-!!!";
const SPRITE_MAN_SIDE = "!!!!!`!!!!!!!!!!!!`6`!!!!!!!!!!!`66````!!!!!``6666666``!!`6666666666```66666666``66`!``666``````6`!!`66`````````!!`6`````KKKK`!!``````KK`KK`!!!``KK`KK`KK`!!!`KKKKKKKK`!!!!!``KKKK``!!!!!`KK``K``!!!!!`KKK```PL`!!!!`KK`````PPT!!!!`K```KK6PS$!!TC```````SCT!!TCC`````_CDQ!!!TS/,)-]LPQ!!!!!$$----]Q!!";
const SPRITE_MAN_FRONT = "!!!!!!!!!`!!!!!!!!!!!!`6`!!!!!!!````66``!!!!!`66666666`!!!`66666666`!!!!``66``66``!!!````6666````!!````````````!`K`KKKKKKKK`K``KKKK`KK`KKKK`!`KKK`KK`KKK`!!$_KKKKKKKKPQ!$#```KKKK```AQ$_LP``````_[PQ-\\\\````````\\\\--YIP``````_+,-!]MP`JKG;`_/0!!!]````````0!!!!-,___PPPY-!!!!-,++_PIIY-!!!!!-00$Q]]-!!!";
const SPRITE_TREE = "!!!+'++*++'%%%)!!!#+&J6F&&&))%)!!##;FJ:GGF&++%!!!++;F:;;7JJKK'#!#++;GKKKGK?:JG###**;GKLKG[O;:JJ##:6;;\\POG[O[:FJ#CJG7GZPPK[N[JGJCCKG;KZ`PK[O[KG;C3;7;KK`PL[O[JJ:KAIF7GK``P__SJFEIAIEGGK```]AC23AAA99IKK]`TDAAAAAA!!111!]`$$A1111A!!!!!!``$$DAA!!!!!!!$```0$$$!!!!";
const SPRITE_COIN = "!!!!!````!!!!!!!!$0[KK[0$!!!!!$#/\\PL\\/#$!!!$#/,_KO[,/#$!!$#0+_KP[+.#$!$#$/+_JO\\+/\"#$$#$/+^:?\\+/\"#$$#$/+_:?\\+/\"#$$#$/+_^W`//\"#$!$#0+_^V`/.#$!!$#/*[[W_./#$!!!$#/ZV^^/#$!!!!!$0[[__0$!!!!!!!!````!!!!!";
const SPRITE_ICONS = "!!!DD----$$!!!!$DOO(%%8@@4$!!$/G'+,<;770$!$/'*'''''7;'0$$/&JF'/'''+'0$0'KFGG/''''+(00GKGGGO''''[X00GKGGGO///'[X0-(KGGG''''',(-!-(KG''''',8=!!-%,'''''(,%=1!!=5(++[\\X%-!!!11=-('(HM-!!!!11!!-0PM!!!!Q";
const SPRITE_VIRUS_HOUSE_GRASS = "]000--0//--00---!-(%%%%(%%(((%-!!-(()%((((%%%%-$#-%),,''/'0(-(/##0((+'''''''((-$$-%('&&&'&&'(%-A--0/...//..0/0-0!-('&&'''((('(0$$-('&&(''''''(-$#0('**,(''+++(-!3-%(+**&''*+<(0$!M%(K++''7KK,%-$!=H((H'''G,,,(-!!-8E%H((H()))8=!-08E%(%%%())LG/-----//0-000-----";
const FONT_3PX = "_`U`!,`S<`\",`?6`\\L]\";]J[?2C`HXPRP?2O+V+':GW\\W000.A/.0.(A.0>.";
const FONT_4PX = "H=](`!C>PDRN01K.@=]@";
const FONT_5PX = "_DBD`@%#A?8)X*88I1-8WRJRX";
// SPRITE FRAMES
const front_frames = decode(SPRITE_MAN_FRONT, 21, 14);
const back_frames = decode(SPRITE_MAN_BACK, 21, 14);
const side_frames_right = decode(SPRITE_MAN_SIDE, 21, 14);
const side_frames_left = side_frames_right.map(mirrorFrame);
const tree_frames = decode(SPRITE_TREE, 16, 16);
tree_frames.push(...tree_frames.map(mirrorFrame));
const coin_frames = decode(SPRITE_COIN, 14, 14);
coin_frames.push(mirrorFrame(coin_frames[1]));
const [heart, clock, bloodstains] = decode(SPRITE_ICONS, 14, 14);
const [virus, house, grass] = decode(SPRITE_VIRUS_HOUSE_GRASS, 16, 16);
const font_3px_arr = decode(FONT_3PX, 5, 3, 1, 1);
const font_4px_arr = decode(FONT_4PX, 5, 4, 1, 1);
const font_5px_arr = decode(FONT_5PX, 5, 5, 1, 1);
const SPACE_CHAR = get2darr(5, 3, 0);
const char_map_3px = stringToCharMap('ABCDEFIJLPRSTUXY136789.:');
const char_map_4px = stringToCharMap('HKOQ24');
const char_map_5px = stringToCharMap('GMNVWZ');
// COLORS
const COLOR_TRANSPARENT = 'rgba( 0, 0, 0, 0 )';
const COLOR_WHITE = '#fff';
const COLOR_DARK_GRAY = 'rgba( 85, 85, 85, 1 )';
const COLOR_DARK_OVERLAY = '#000a';
const COLOR_MEDIUM_OVERLAY = '#0006';
const COLOR_LIGHT_GRAY = '#ddd';
const COLOR_CHAMPAIGN = '#fed';
const COLOR_SCARLET = '#f20';
const COLOR_BRONZE = '#d84';
const COLOR_ORANGE_OVERLAY = '#fd04';
const COLOR_RED_OVERLAY = '#f008';
const COLOR_VIOLET_OVERLAY = '#81e8';
const COLOR_LIGHT_GOLD = '#ffd';
const COLOR_GOLD = '#fd0';
const COLOR_GOLDEN_BROWN = '#963';
const COLOR_DONKEY_BROWN = '#a97';
const COLOR_SLATE_BLUE = '#87f';
const COLOR_PIXIE_GREEN = '#bdb';
const COLOR_SPROUT = '#ac9';
const COLOR_BUDDHA_GOLD = '#ba0';
const COLOR_DRIFTWOOD = '#a84';
const COLOR_HUSK = '#aa4';
const COLOR_FLAX = '#ed8';
const COLOR_SAND = '#cc9';
const COLOR_SHADOW_GREEN = '#9ca';
const COLOR_TUMBLEWEED = '#da7';
const TREE_COLOR_SCHEMES = [
[COLOR_PIXIE_GREEN, COLOR_SPROUT, COLOR_DONKEY_BROWN],
[COLOR_PIXIE_GREEN, COLOR_BUDDHA_GOLD, COLOR_DRIFTWOOD],
[COLOR_SAND, COLOR_SHADOW_GREEN, COLOR_DRIFTWOOD],
[COLOR_SAND, COLOR_HUSK, COLOR_DONKEY_BROWN],
[COLOR_FLAX, COLOR_HUSK, COLOR_DRIFTWOOD],
[COLOR_FLAX, COLOR_TUMBLEWEED, COLOR_DONKEY_BROWN],
];
// ENUM BLOCK TYPES
const CLEAR = 0;
const VIRUS = 1;
const RED = 2;
const GREEN = 3;
const START = 4;
const END = 5;
const GOLD = 6;
const GRASS = 7;
const HOUSE = 8;
const TREE = 9;
// ENUM DIRECTIONS
const TOP = 0;
const RIGHT = 1;
const BOTTOM = 2;
const LEFT = 3;
// ENUM BUTTONS
const SPECS = 0;
const MAP = 1;
const LENS = 2;
const MASK = 3;
const PPE = 4;
const PILL = 5;
const XRAY = 6;
const AXE = 7;
const BUTTON_MAP = [
[30, 'specs', 'increase', 'sight radius'],
[50, 'map', 'reveal all', 'of the map'],
[150, 'lens', 'make virus', 'visible'],
[30, 'mask', 'reduce damage', 'to health'],
[50, 'ppe', 'reduce damage', 'to health'],
[50, 'pill', 'restore health', 'upto 10 points'],
[50, 'xray', 'show nearby', 'infected area'],
[10, 'axe', 'cut a tree', 'in front'],
];
// ENUM STAGES
const INTRO = 0;
const PLAYING = 1;
// GAME CONFIG
const screenWidth = Math.max(1000, Math.floor(window.innerWidth/100) * 100);
const screenHeight = Math.max(700, Math.floor(window.innerHeight/100) * 100);
const mazeScaleFactor = 5;
const boardScaleFactor = 2;
const cellScaleFactor = mazeScaleFactor * boardScaleFactor;
const borderWidthBase = 1;
const borderWidth = borderWidthBase * boardScaleFactor;
const cellWidth = 1 * cellScaleFactor + borderWidth;
const blockResolution = 50;
const viewportWidth = Math.floor(screenWidth / blockResolution);
const viewportHeight = Math.floor(screenHeight / blockResolution);
const fps = 20;
const levelTexts = ['easy', 'normal', 'moderate', 'hard', 'expert'];
const levelDifficultyParams = [16, 12, 10, 8, 6];
const virusMovementSequence = [[0, 0], [1, 0], [0, 1], [-1, 0], [0, -1], [0, 0], [1, 1], [0, 1]];
const coin_frame_order = [0, 1, 2, 3];
const man_frame_order = [0, 1, 2, 1];
// GAME STATE VARIABLES
let mazeDim, boardDim, maze, start, target, visible, mazeCopy,
orientation, moving, message, gameRunning, treeMap,
lock, lockCounter, moveStart, timer, wealth, boardDimBase,
health, sightRadius, damageVector, showVirus, discoveryMode,
curpos, viewport, clickables, optionsShown, gameWasRunning,
buttons, lens, specs, map, mask, ppe, stage, level, levelText,
optionsTitle, showOptionsClose, xrayBoard, damageLockCounter;
level = 0;
levelText = levelTexts[0];
initGame(true);
discoveryMode = false;
showVirus = true;
stage = INTRO;
function initLevel () {
mazeDim = 8 + 2 * level;
levelText = levelTexts[level];
boardDimBase = getBoardDim();
boardDim = boardDimBase * boardScaleFactor;
[mazeCopy, start, target, treeMap] = newMaze(mazeDim, mazeDim);
}
function initGame (isNewGame) {
if (isNewGame) initLevel();
maze = copy2darr(mazeCopy);
visible = get2darr(boardDim, boardDim, false);
xrayBoard = get2darr(boardDim, boardDim, CLEAR);
orientation = TOP;
moving = false;
message = '';
gameRunning = true;
lock = true;
lockCounter = 0;
damageLockCounter = 0;
moveStart = 0;
timer = 0;
wealth = 20;
health = 100;
sightRadius = 2;
damageVector = [4, 20];
showVirus = false;
discoveryMode = true;
curpos = [...start];
viewport = [curpos[0]-Math.floor(viewportHeight / 2), curpos[1]-Math.floor(viewportHeight / 2)];
containViewport();
clickables = {
options: [ screenWidth - 148, 10, 128, 20 ],
};
optionsShown = false;
buttons = [];
lens = false;
map = false;
specs = false;
mask = false;
ppe = false;
stage = PLAYING;
}
const actions = {
options: function () {
optionsShown = true;
optionsTitle = 'OPTIONS';
showOptionsClose = true;
if (gameRunning) {
gameWasRunning = gameRunning;
gameRunning = false;
}
},
optionsClose: function () {
clickables.optionsClose = false;
optionsShown = false;
gameRunning = gameWasRunning;
},
specs: function () {
clickables.specs = false;
wealth -= 30;
specs = true;
sightRadius = 4;
},
map: function () {
clickables.map = false;
wealth -= 50;
map = true;
discoveryMode = false;
},
lens: function () {
clickables.lens = false;
wealth -= 100;
lens = true;
showVirus = true;
},
mask: function () {
clickables.mask = false;
wealth -= 30;
mask = true;
damageVector = [3, 15];
},
ppe: function () {
clickables.ppe = false;
wealth -= 50;
ppe = true;
damageVector = [2, 10];
},
pill: function () {
if (health >= 100) return;
clickables.pill = false;
wealth -= 50;
health = Math.min(health + 10, 100);
},
xray: function () {
clickables.xray = false;
iter2d(curpos[0]-4, curpos[0]+5, curpos[1]-4, curpos[1]+5, function (p, q) {
xrayBoard[p][q] = RED;
});
},
axe: function () {
clickables.axe = false;
const [ti, tj] = treeFacing();
if (ti === null) return;
wealth -= 10;
maze[ti][tj] = CLEAR;
maze[ti+1][tj] = CLEAR;
maze[ti][tj+1] = CLEAR;
maze[ti+1][tj+1] = CLEAR;
},
start: function () {
clickables.start = false;
clickables.levelUp = false;
clickables.levelDown = false;
initGame(true);
},
levelUp: function () {
level += 1;
if (level > 4) level = 0;
levelText = levelTexts[level];
},
levelDown: function () {
level -= 1;
if (level < 0) level = 4;
levelText = levelTexts[level];
},
restart: function () {
closeOptionsHelper();
initGame();
},
'new map': function () {
closeOptionsHelper();
initGame(true);
},
'main menu': function () {
closeOptionsHelper();
discoveryMode = false;
showVirus = true;
stage = INTRO;
},
};
function closeOptionsHelper () {
clickables.optionsClose = false;
clickables.restart = false;
clickables['new map'] = false;
clickables['main menu'] = false;
optionsShown = false;
}
function treeFacing () {
let [i, j] = curpos;
if (orientation === TOP) i -= 1;
if (orientation === LEFT) j -= 1;
if (orientation === RIGHT) j += 1;
if (orientation === BOTTOM) i += 1;
if (maze[i][j] === TREE) {
let basei = i%2 === 0 ? i : i-1;
let basej = j%2 === 0 ? j : j-1;
return [basei, basej];
}
return [null, null];
}
// THE CANVAS AND CONTEXT
const cnv = document.getElementById('c');
cnv.width = screenWidth;
cnv.height = screenHeight;
const ctx = cnv.getContext('2d');
// UTIL FUNCTIONS
function rnd (l, u) {
return Math.floor(Math.random()*(u-l)) + l;
}
function get2darr (r, c, f) {
return Array.from(Array(r), _ => Array(c).fill(f));
}
function iter2d (il, iu, jl, ju, f) {
for (let i=il; i<iu; i++) {
for (let j=jl; j<ju; j++) f(i, j);
}
}
function iterSq(l, u, f) {
iter2d(l, u, l, u, f);
}
function copy2darr (arr) {
let n = arr.length, m = arr[0].length;
let res = get2darr(n, m, 0);
iter2d(0, n, 0, m, function (i, j) {
res[i][j] = arr[i][j];
});
return res;
}
function getBoardDim () {
return mazeDim * (mazeScaleFactor + 1) + 1;
}
function chunks (s, l) {
let res = [], ll = s.length, i = 0;
while (i < ll) {
res.push(s.slice(i, i+l));
i += l;
}
return res;
}
function twodig (x) {
let s = x.toString()
if (s.length < 2) return '0'+s;
return s;
}
function getCode (x, y, b=2, m=3) {
return (x & (m << (b*y))) >>> (b*y);
}
function decode (s, r, c, bitwidth=2, mask=3) {
const wid = r*c;
const blocks = chunks(s, wid);
const res = [];
blocks.map(block => {
const lines = chunks(block, c).map(l => l.split('').map(x => x.charCodeAt(0)-33));
const frames = get2darr(6/bitwidth, 0);
lines.map(line => {
frames.map((_, y) => frames[y].push(line.map(x => getCode(x, y, bitwidth, mask))));
});
res.push(...frames);
})
return res;
}
function fls (B) {
ctx.fillStyle = B;
ctx.fillRect(0, 0, screenWidth, screenHeight);
}
function cls (B) {
ctx.clearRect(0, 0, screenWidth, screenHeight);
fls(B);
}
function drawFrame (x, y, frame, L, M, D, dim = 3) {
const colorArr = [,L,M,D];
iter2d(0, frame.length, 0, frame[0].length, function (i, j) {
if (frame[i][j]) {
ctx.fillStyle = colorArr[frame[i][j]];
ctx.fillRect(x+j*dim, y+i*dim, dim, dim);
ctx.fillStyle= COLOR_TRANSPARENT;
}
});
}
function mirrorFrame (f) {
let nf = get2darr(f.length, f[0].length, 0);
iter2d(0, f.length, 0, f[0].length, function (i, j) {
nf[i][f[0].length-j-1] = f[i][j];
});
return nf;
}
function stringToCharMap (s) {
return s.split('').reduce((acc, ch, index) => {
acc[ch] = index;
return acc;
}, {});
}
function isDefined (x) {
return typeof x !== 'undefined';
}
function cached (f) {
const cache = {};
return function (x) {
let y = cache[x];
if(y) return y;
y = f(x);
cache[x] = y;
return y;
};
}
var getCharInfo = cached(function (_ch) {
let ch = _ch.toUpperCase();
if (ch === '0') ch = 'O';
if (ch === '5') ch = 'S';
let res = char_map_3px[ch];
if (isDefined(res)) return [res, 3];
res = char_map_4px[ch];
if (isDefined(res)) return [res, 4];
res = char_map_5px[ch];
if (isDefined(res)) return [res, 5];
return [null, 3];
});
var getCharRep = cached(function (ch) {
let [ind, width] = getCharInfo(ch);
if (ind !== null) {
if (width === 3) return [font_3px_arr[ind], width];
if (width === 4) return [font_4px_arr[ind], width];
if (width === 5) return [font_5px_arr[ind], width];
}
return [SPACE_CHAR, 3];
});
function getWordLength (word) {
let len = -1;
for (let i=0; i<word.length; i++) len += 1 + getCharInfo(word[i])[1];
return len;
}
function drawText (x, y, text, color, size, l, r, highlight) {
let cx = x;
let cy = y;
let txt = text.toString();
for (let i=0; i<txt.length; i++) {
let [matrix, width] = getCharRep(txt[i]);
ctx.fillStyle = (isDefined(l) && i >= l && i < r) ? highlight : color;
iter2d(0, 5, 0, width, function (j, k) {
if (matrix[j][k]) ctx.fillRect(k*size + cx, j*size + cy, size, size);
});
cx += (width + 1) * size;
}
}
// AUDIO UTILS
function audioInit () {
const AudioContext = window.AudioContext || window.webkitAudioContext;
actx = new AudioContext();
birdGain = actx.createGain();
ambientGain = actx.createGain();
notesGain = actx.createGain();
birdGain.gain.value = 1;
notesGain.gain.value = 0.5;
ambientGain.gain.value = 0.3;
const dest = actx.destination;
birdGain.connect(dest);
ambientGain.connect(dest);
notesGain.connect(dest);
return Promise.all([
makeAudioBuffer(bird1).then(buf => bird1Buffer = buf),
makeAudioBuffer(bird2).then(buf => bird2Buffer = buf),
makeAudioBuffer(bird3).then(buf => bird3Buffer = buf),
makeAudioBuffer(ambient).then(buf => ambientBuffer = buf),
]).then(() => actxInitialized = true);
}
function playNotes (notes, wave = 'sine', gainValue = 0.5) {
const now = actx.currentTime;
for (let i=0; i<notes.length; i++) {
if (notes[i]) {
const osc = actx.createOscillator();
osc.connect(notesGain);
osc.start(now + i * 0.1);
osc.frequency.setValueAtTime(440 * 1.06 ** (13 - notes[i]), now + i * 0.1);
osc.type = wave;
notesGain.gain.setValueAtTime(gainValue, now + i * 0.1);
notesGain.gain.setValueAtTime(0.0001, now + i * 0.1 + 0.08, 0.005);
osc.stop(now + i * 0.1 + 0.09);
setTimeout(() => osc.disconnect(), (i+1) * 100);
}
}
}
function base64ToArrayBuffer(base64) {
const binary_string = window.atob(base64);
const len = binary_string.length;
const bytes = new Uint8Array(len);
for (let i = 0; i < len; i++) {
bytes[i] = binary_string.charCodeAt(i);
}
return bytes.buffer;
}
function playBuffer (buffer, duration, dest) {
const source = actx.createBufferSource();
source.connect(dest);
source.buffer = buffer;
source.start(0);
source.stop(actx.currentTime + duration);
setTimeout(() => source.disconnect(), duration * 1010);
}
function makeAudioBuffer (str) {
return new Promise((resolve, reject) => actx.decodeAudioData(base64ToArrayBuffer(str), resolve));
}
// GAME LOGIC
function drawStats() {
let secs = Math.floor(timer / fps);
let mins = Math.floor(secs / 60);
secs %= 60;
let time = twodig(mins) + ':' + twodig(secs);
ctx.fillStyle = COLOR_DARK_OVERLAY;
ctx.fillRect(0, 0, screenWidth, 40);
drawFrame(20, 5, heart, COLOR_CHAMPAIGN, COLOR_SCARLET, COLOR_BRONZE, 2);
drawText(60, 10, health, COLOR_WHITE, 4);
drawFrame(160, 5, coin_frames[0], COLOR_LIGHT_GOLD, COLOR_GOLD, COLOR_GOLDEN_BROWN, 2);
drawText(200, 10, wealth, COLOR_WHITE, 4);
drawFrame(300, 5, clock, COLOR_WHITE, COLOR_SLATE_BLUE, COLOR_DARK_GRAY, 2);
drawText(340, 10, time, COLOR_WHITE, 4);
if (gameRunning) drawText(screenWidth - 148, 10, 'OPTIONS', COLOR_WHITE, 4);
if (message) {
ctx.fillStyle = COLOR_DARK_OVERLAY;
let top_left_x = Math.floor((screenWidth - 300)/2);
let top_left_y = Math.floor((screenHeight - 100)/2);
ctx.fillRect(top_left_x, top_left_y, 300, 100);
drawFrame(top_left_x + 25, top_left_y + 30, virus, '#fd8', '#f80', '#a00', 3);
drawText(top_left_x + 100, top_left_y + 40, message, COLOR_WHITE, 4);
}
}
function drawBuyButtons () {
buttons.length = 4;
if (health < 100 && mask && ppe) buttons[0] = PILL;
else if (mask && !ppe) buttons[0] = PPE;
else if (!mask) buttons[0] = MASK;
else buttons[0] = null;
if (specs && map) buttons[1] = XRAY;
else if (specs && !map) buttons[1] = MAP;
else if (!specs) buttons[1] = SPECS;
else buttons[1] = null;
buttons[2] = AXE;
if (!showVirus) buttons[3] = LENS;
else buttons[3] = null;
let left_marker = screenWidth;
buttons.map(function (button) {
if (button === null) return;
left_marker -= 205;
let [cost, title, text1, text2] = BUTTON_MAP[button];
drawBuyButton(left_marker, screenHeight - 90, cost, title, text1, text2, cost > wealth);
});
}
function drawBuyButton (x, y, cost, title, text1, text2, disabled) {
const btnWidth = 185, btnHeight = 70;
ctx.beginPath();
ctx.rect(x, y, btnWidth, btnHeight);
ctx.fillStyle = COLOR_DARK_OVERLAY;
ctx.fill();
ctx.strokeStyle = disabled ? COLOR_DARK_GRAY : COLOR_SCARLET;
ctx.stroke();
ctx.closePath();
ctx.fillStyle = disabled ? COLOR_DARK_GRAY : COLOR_SCARLET;
ctx.fillRect(x + 60, y, 1, btnHeight);
drawFrame(
x + 16,
y + 10,
coin_frames[0],
disabled ? COLOR_LIGHT_GRAY : COLOR_LIGHT_GOLD,
disabled ? '#aaa' : COLOR_GOLD,
disabled ? '#777' : COLOR_GOLDEN_BROWN,
2,
);
const textColor = disabled ? '#aaaa' : COLOR_WHITE;
drawText(x + (cost === 150 ? 11.5 : 18), y + 45, cost, textColor, 3);
drawText(x + 80, y + 10, title, textColor, 4);
drawText(x + 80, y + 40, text1, textColor, 1.5);
drawText(x + 80, y + 52, text2, textColor, 1.5);
if (!disabled) {
if (!clickables[title]) clickables[title] = [x, y, btnWidth, btnHeight];
else {
clickables[title][0] = x;
clickables[title][1] = y;
}
}
}
function drawButton (x, y, text, width, color = COLOR_WHITE, fontSize = 3) {
const buttonHeight = 15 * fontSize;
const textLen = getWordLength(text) * fontSize;
ctx.beginPath();
ctx.rect(x, y, width, buttonHeight);
ctx.closePath();
ctx.fillStyle = COLOR_DARK_OVERLAY;
ctx.fill();
ctx.strokeWidth = 2;
ctx.strokeStyle = color;
ctx.stroke();
drawText(x + Math.floor((width - textLen) / 2), y + 5*fontSize, text, color, fontSize);
if (!clickables[text]) clickables[text] = [x, y, width, buttonHeight];
}
function drawOptions () {
fls(COLOR_MEDIUM_OVERLAY);
let modalWidth = 400, modalHeight = 300;
let top_left_x = Math.floor((screenWidth - modalWidth)/2);
let top_left_y = Math.floor((screenHeight - modalHeight)/2);
ctx.fillStyle = COLOR_DARK_OVERLAY;
ctx.fillRect(top_left_x, top_left_y, modalWidth, modalHeight);
if (showOptionsClose) {
drawText(top_left_x + modalWidth - 100, top_left_y + 20, 'CLOSE', COLOR_WHITE, 4);
if (!clickables.optionsClose) clickables.optionsClose = [ top_left_x + modalWidth - 100, top_left_y + 20, 80, 20 ];
}
const titleLen = getWordLength(optionsTitle) * 4;
drawText(top_left_x + Math.floor((modalWidth - titleLen)/2), top_left_y + 60, optionsTitle, COLOR_WHITE, 4);
const buttonWidth = 200;
const x_marker = top_left_x + Math.floor((modalWidth - buttonWidth)/2);
drawButton(x_marker, top_left_y + 100, 'restart', 200);
drawButton(x_marker, top_left_y + 160, 'new map', 200);
drawButton(x_marker, top_left_y + 220, 'main menu', 200);
}
function newMaze() {
let totalCells = mazeDim * mazeDim;
let cells = get2darr(mazeDim, mazeDim, 0);
let unvis = get2darr(mazeDim, mazeDim, true);
iterSq(0, mazeDim, function(i, j) {
cells[i][j] = [0, 0, 0, 0];
});
let currentCell = [
rnd(3*Math.floor(mazeDim/4), mazeDim),
rnd(0, Math.floor(mazeDim/2)),
];
let targetCell = [
0,
rnd(Math.floor(mazeDim/4), mazeDim),
];
let start = [...currentCell];
let path = [currentCell];
unvis[currentCell[0]][currentCell[1]] = false;
let visited = 1;
while (visited < totalCells) {
let pot = [[currentCell[0]-1, currentCell[1], 0, 2],
[currentCell[0], currentCell[1]+1, 1, 3],
[currentCell[0]+1, currentCell[1], 2, 0],
[currentCell[0], currentCell[1]-1, 3, 1]];
let neighbors = [];
for (let l = 0; l < 4; l++) {
if (pot[l][0] >= 0 && pot[l][0] < mazeDim && pot[l][1] >= 0 && pot[l][1] < mazeDim && unvis[pot[l][0]][pot[l][1]]) {
neighbors.push(pot[l]);
}
}
if (neighbors.length) {
let next = neighbors[rnd(0, neighbors.length)];
if (rnd(0,15) === 1) {
cells[currentCell[0]][currentCell[1]][next[2]] = 1;
cells[next[0]][next[1]][next[3]] = 1;
}
next = neighbors[rnd(0, neighbors.length)];
cells[currentCell[0]][currentCell[1]][next[2]] = 1;
cells[next[0]][next[1]][next[3]] = 1;
unvis[next[0]][next[1]] = false;
visited++;
currentCell = [next[0], next[1]];
path.push(currentCell);
} else {
currentCell = path.pop();
}
}
let board = get2darr(boardDim, boardDim, TREE);
let treeMap = get2darr(boardDim, boardDim, 0);
iterSq(0, boardDim, function (i, j) {
treeMap[i][j] = [rnd(0, 6), rnd(0, 6)];
});
iterSq(0, mazeDim, function (i, j) {
iter2d(i*cellWidth + borderWidth, (i+1)*cellWidth, j*cellWidth + borderWidth, (j+1)*cellWidth, function (p, q) {
board[p][q] = CLEAR;
});
if (cells[i][j][0]) {
iter2d(i*cellWidth, i*cellWidth + borderWidth, j*cellWidth + borderWidth, (j+1)*cellWidth, function (p, q) {
board[p][q] = CLEAR;
});
}
if (cells[i][j][3]) {
iter2d(i*cellWidth + borderWidth, (i+1)*cellWidth, j*cellWidth, j*cellWidth + borderWidth, function (p, q) {
board[p][q] = CLEAR;
});
}
});
iterSq(borderWidthBase, boardDimBase - borderWidthBase, function (_i, _j) {
let i = _i * boardScaleFactor, j = _j * boardScaleFactor;
if (board[i][j] === TREE && rnd(0,3) === 1) {
board[i][j] = CLEAR;
board[i+1][j] = CLEAR;
board[i][j+1] = CLEAR;
board[i+1][j+1] = CLEAR;
} else {
if ((board[i+2][j] === TREE || board[i-2][j] === TREE || board[i][j+2] === TREE || board[i][j-2] === TREE)) {
const rndval = rnd(0,3);
if (board[i][j] !== VIRUS && rndval === 1) {
board[i][j] = TREE;
board[i+1][j] = TREE;
board[i][j+1] = TREE;
board[i+1][j+1] = TREE;
} else if (rndval === 2) {
if (rnd(0, levelDifficultyParams[level]) === 1) {
iter2d(i, i+3, j, j+3, function (p, q) {
if (board[p][q] !== TREE) board[p][q] = RED;
});
board[i+1][j+1] = VIRUS;
}
}
} else {
if (rnd(0, levelDifficultyParams[level]) === 1) {
iter2d(i, i+3, j, j+3, function (p, q) {
board[p][q] = RED;
});
board[i+1][j+1] = VIRUS;
}
}
}
});
start = [start[0]*cellWidth + cellScaleFactor, start[1]*cellWidth + 2*borderWidth];
let [si, sj] = start;
targetCell = [targetCell[0]*cellWidth + 3*borderWidth, targetCell[1]*cellWidth + 4*borderWidth];
let [ti, tj] = targetCell;
board[si][sj] = START;
board[ti][tj] = END;
board[si+1][sj] = CLEAR;
board[si][sj+1] = CLEAR;
board[si+1][sj+1] = CLEAR;
board[ti-2][tj-2] = HOUSE;
board[ti-2][tj-1] = HOUSE;
board[ti-2][tj] = HOUSE;
board[ti-1][tj-2] = HOUSE;
board[ti-1][tj-1] = HOUSE;
board[ti-1][tj] = HOUSE;
board[ti][tj-2] = HOUSE;
board[ti][tj-1] = HOUSE;
board[ti+1][tj-2] = CLEAR;
board[ti+1][tj-1] = CLEAR;
board[ti+1][tj] = CLEAR;
board[ti+2][tj-2] = CLEAR;
board[ti+2][tj-1] = CLEAR;
board[ti+2][tj] = CLEAR;
iterSq(borderWidth, boardDim - borderWidth, function (i, j) {
if (board[i][j] === CLEAR) {
let xx = rnd(0, mazeDim * 2);
if (xx === 1) {
board[i][j] = GOLD;
} else if (xx >= 3 * Math.floor(mazeDim/2)) {
board[i][j] = GRASS;
}
}
});
return [board, start, targetCell, treeMap];
}
function mainLoop () {
cls(COLOR_CHAMPAIGN);
drawMaze();
lock = false;
if (Math.abs((lockCounter - moveStart)) % 3 === 2) {
moving = false;
moveStart = 0;
}
if (gameRunning) {
if (actxInitialized) {
if (timer % fps === 0) {
if (timer % 4 === 0) playBuffer(ambientBuffer, 2, ambientGain);
let xx = rnd(0, 9);
if (xx === 1) playBuffer(bird1Buffer, 1, birdGain);
if (xx === 2) playBuffer(bird2Buffer, 1, birdGain);
if (xx === 3) playBuffer(bird3Buffer, 1, birdGain);
}
}
timer += 1;
}
let [i, j] = curpos;
if (maze[i][j] === GOLD) {
wealth += 1;
maze[i][j] = CLEAR;
playNotes([5, 1], 'sawtooth', 0.2);
}
if (health > 0) {
if (maze[i][j] === RED) {
if (damageLockCounter % 4 === 0) {
health -= damageVector[0];
fls(COLOR_ORANGE_OVERLAY);
if (gameRunning) playNotes([24, 25]);
}
damageLockCounter += 1;
xrayBoard[i][j] = VIRUS;
message = 'VIRUS ALERT';
}
if (maze[i][j] === VIRUS) {
if (damageLockCounter % 4 === 0){
health -= damageVector[1];
fls(COLOR_RED_OVERLAY);
if (gameRunning) playNotes([24, 25]);
}
damageLockCounter += 1;
xrayBoard[i][j] = VIRUS;
message = 'VIRUS ALERT';
}
}
if (maze[i][j] !== RED && maze[i][j] !== VIRUS) {
message = '';
damageLockCounter = 0;
}
if (health <= 0) {
health = 0;
lock = true;
fls(COLOR_RED_OVERLAY);
if (gameRunning) playNotes([25,24,23,22,21,20,21,22,23,24]);
gameRunning = false;
optionsTitle = 'GAME OVER';
showOptionsClose = false;
optionsShown = true;
showVirus = true;
}