// ==== Starter World =================================================================================================
// This code is designed for use on the Ancient Brain site.
// This code may be freely copied and edited by anyone on the Ancient Brain site.
// To include a working run of this program on another site, see the "Embed code" links provided on Ancient Brain.
// ====================================================================================================================
// =============================================================================================
// More complex starter World
// 3d-effect Maze World (really a 2-D problem)
// Movement is on a semi-visible grid of squares
//
// This more complex World shows:
// - Skybox
// - Internal maze (randomly drawn each time)
// - Enemy actively chases agent
// - Music/audio
// - 2D world (clone this and set show3d = false)
// - User keyboard control (clone this and comment out Mind actions to see)
// =============================================================================================
// =============================================================================================
// Scoring:
// Bad steps = steps where enemy is within one step of agent.
// Good steps = steps where enemy is further away.
// Score = good steps as percentage of all steps.
//
// There are situations where agent is trapped and cannot move.
// If this happens, you score zero.
// =============================================================================================
// ===================================================================================================================
// === Start of tweaker's box ========================================================================================
// ===================================================================================================================
// The easiest things to modify are in this box.
// You should be able to change things in this box without being a JavaScript programmer.
// Go ahead and change some of these. What's the worst that could happen?
AB.clockTick = 100;
// Speed of run: Step every n milliseconds. Default 100.
AB.maxSteps = 1000;
// Length of run: Maximum length of run in steps. Default 1000.
AB.screenshotStep = 50;
// Take screenshot on this step. (All resources should have finished loading.) Default 50.
var show3d = false; // Switch between 3d and 2d view (both using Three.js)
var TEXTURE_WALL = "/uploads/vyoma136/hills.jpg";
var TEXTURE_MAZE = "/uploads/vyoma136/snow.jpg";
var TEXTURE_AGENT = "/uploads/vyoma136/sonic.jpg";
var TEXTURE_ENEMY = "/uploads/vyoma136/dr.eggman.jpg";
var TEXTURE_PATH = "/uploads/vyoma136/line.jpg";
var MUSIC_BACK = "/uploads/vyoma136/sonicfinalzone.mp3";
var SOUND_ALARM = "/uploads/vyoma136/sonicgameover.mp3";
var gridsize = 50; // number of squares along side of world
var NOBOXES = Math.trunc(gridsize * gridsize / 3); // density of maze - number of internal boxes
// (bug) use trunc or can get a non-integer
var squaresize = 100; // size of square in pixels
var MAXPOS = gridsize * squaresize;// length of one side in pixels
var SKYCOLOR = 0xddffdd;
var startRadiusConst = .8 * MAXPOS; // distance from centre to start the camera at
var maxRadiusConst = 10 * MAXPOS; // maximum distance from camera we will render things
//--- change ABWorld defaults: -------------------------------
ABHandler.MAXCAMERAPOS = maxRadiusConst, ABHandler.GROUNDZERO = true;
var SKYBOX_ARRAY = ["/uploads/vyoma136/snowy.jpg", "/uploads/vyoma136/snowy1.jpg", "/uploads/vyoma136/snowy2.jpg",
"/uploads/vyoma136/snowy3.jpg",
"/uploads/vyoma136/snowy.jpg",
"/uploads/vyoma136/snowy.jpg"];
//--- Mind can pick one of these actions -----------------
var ACTION_LEFT = 0;
var ACTION_RIGHT = 1;
var ACTION_UP = 2;
var ACTION_DOWN = 3;
var ACTION_STAYSTILL = 4;
// in initial view, (smaller-larger) on i axis is aligned with (left-right)
// in initial view, (smaller-larger) on j axis is aligned with (away from you - towards you)
// contents of a grid square
var GRID_BLANK = 0;
var GRID_WALL = 1;
var GRID_MAZE = 2;
var BOXHEIGHT; // 3d or 2d box height
var theagent;
var theenemy;
var wall_texture;
var agent_texture;
var enemy_texture;
var maze_texture;
var ei;
var ej;
var ai;
var aj;
var badsteps;
var goodsteps;
var start;
var end;
var isblocked;
var shape;
var thecube;
var thepath;
var path_texture;
var GRID = new Array(gridsize); // can query GRID about whether squares are occupied, will in fact be initialised as a 2D array
var openSet = [];
var closedSet = [];
var pathArray = [];
var children = [];
function myheuristic(a, b) { //Heuristic function Manhattan Distance
return Math.abs(a.i - b.i) + Math.abs(a.j - b.j);
}
function removePath() {
console.log("Finding new path at every move");
var i = 0;
for (; i < pathArray.length; i++) {
var key = pathArray[i];
var a = ABWorld.scene.getObjectByProperty("id", key);
ABWorld.scene.remove(a);
}
}
function Spot(i, j, width) {
this.i = i;
this.j = j;
this.iswallormaze = true === width;
this.f = 0;
this.g = 0;
this.h = 0;
this.neighbors = [];
this.parent = void 0;
this.addNeighbors = function(arr) {
var i = this.i;
var j = this.j;
if (i < gridsize - 1 && false === arr[i + 1][j].iswallormaze) {
this.neighbors.push(arr[i + 1][j]);
}
if (i > 0 && false === arr[i - 1][j].iswallormaze) {
this.neighbors.push(arr[i - 1][j]);
}
if (j < gridsize - 1 && false === arr[i][j + 1].iswallormaze) {
this.neighbors.push(arr[i][j + 1]);
}
if (j > 0 && false === arr[i][j - 1].iswallormaze) {
this.neighbors.push(arr[i][j - 1]);
}
};
}
function AStarAlgo(begin, end) { //A Star algorithm
resetGrid();
removePath();
var current = void 0;
var events = [begin];
var result = [];
for (; 0 !== events.length;) {
var j = 0;
var i = 0;
for (; i < events.length; i++) {
if (events[i].f < events[j].f) {
j = i;
}
}
if ((current = events[j]) === end) {
console.log("Dr. Eggman has reached to the Sonic!");
break;
}
removeFromArray(events, current);
result.push(current);
var neighbors = current.neighbors;
var n = 0;
for (; n < neighbors.length; n++) {
var neighbor = neighbors[n];
if (!result.includes(neighbor) && !neighbor.iswallormaze) {
var ng = current.g + myheuristic(neighbor, current);
var l = false;
if (events.includes(neighbor)) {
if (ng < neighbor.g) {
neighbor.g = ng;
l = true;
}
} else {
neighbor.g = ng;
l = true;
events.push(neighbor);
}
if (l) {
neighbor.h = myheuristic(neighbor, end);
neighbor.f = neighbor.g + neighbor.h;
neighbor.parent = current;
}
}
}
}
path = [];
var p = current;
path.push(p);
for (; p.parent;) {
path.push(p.parent);
p = p.parent;
}
return path;
}
function removeFromArray(array, item) {
var i = array.length - 1;
for (; i >= 0; i--) {
if (array[i] == item) {
array.splice(i, 1);
}
}
}
function loadResources() { // asynchronous file loads - call initScene() when all finished
var mockObjectLoader = new THREE.TextureLoader();
var outbound_chart = new THREE.TextureLoader();
var inbound_chart = new THREE.TextureLoader();
var snippetFrame = new THREE.TextureLoader();
var CHANNEL_STORE = new THREE.TextureLoader();
mockObjectLoader.load(TEXTURE_WALL, function(texture) {
texture.minFilter = THREE.LinearFilter;
wall_texture = texture;
if (asynchFinished()) {
initScene();
}
});
outbound_chart.load(TEXTURE_AGENT, function(texture) {
texture.minFilter = THREE.LinearFilter;
agent_texture = texture;
if (asynchFinished()) {
initScene();
}
});
inbound_chart.load(TEXTURE_ENEMY, function(texture) {
texture.minFilter = THREE.LinearFilter;
enemy_texture = texture;
if (asynchFinished()) {
initScene();
}
});
snippetFrame.load(TEXTURE_MAZE, function(texture) {
texture.minFilter = THREE.LinearFilter;
maze_texture = texture;
if (asynchFinished()) {
initScene();
}
});
CHANNEL_STORE.load(TEXTURE_PATH, function(texture) {
texture.minFilter = THREE.LinearFilter;
path_texture = texture;
if (asynchFinished()) {
initScene();
}
});
}
function asynchFinished() {
return !!(wall_texture && agent_texture && enemy_texture && maze_texture && path_texture); // all file loads returned
}
function occupied(x, y) { // is this square occupied
return ei == x && ej == y || ai == x && aj == y || true === GRID[x][y].iswallormaze;
}
// translate my (e,_) grid coordinates to three.js (x,y,z) coordinates
// logically, coordinates are: y=0, x and z all positive (no negative)
// logically my dimensions are all positive 0 to MAXPOS
// to centre everything on origin, subtract (MAXPOS/2) from all dimensions
function translate(e, _) {
var globalBonePosition = new THREE.Vector3();
return globalBonePosition.y = 0, globalBonePosition.x = e * squaresize - MAXPOS / 2, globalBonePosition.z = _ * squaresize - MAXPOS / 2, globalBonePosition;
}
function initScene() { //all files have returned
var value;
var name;
// set up GRID as 2D array
value = 0;
for (; value < gridsize; value++) {
GRID[value] = new Array(gridsize);
}
value = 0;
for (; value < gridsize; value++) {
name = 0;
for (; name < gridsize; name++) {
if (0 === value || value == gridsize - 1 || 0 === name || name == gridsize - 1) {
isblocked = true;
GRID[value][name] = new Spot(value, name, isblocked);
shape = new THREE.BoxGeometry(squaresize, BOXHEIGHT, squaresize);
(thecube = new THREE.Mesh(shape)).material = new THREE.MeshBasicMaterial({
map : wall_texture
});
thecube.position.copy(translate(value, name));
ABWorld.scene.add(thecube);
} else {
GRID[value][name] = new Spot(value, name);
}
}
}
var a = 1;
for (; a <= NOBOXES; a++) {
isblocked = true;
value = AB.randomIntAtoB(1, gridsize - 2);
name = AB.randomIntAtoB(1, gridsize - 2);
GRID[value][name] = new Spot(value, name, isblocked);
shape = new THREE.BoxGeometry(squaresize, BOXHEIGHT, squaresize);
(thecube = new THREE.Mesh(shape)).material = new THREE.MeshBasicMaterial({
map : maze_texture
});
thecube.position.copy(translate(value, name));
ABWorld.scene.add(thecube);
}
value = 0;
for (; value < gridsize; value++) {
name = 0;
for (; name < gridsize; name++) {
if (0 !== value && value != gridsize - 1 && 0 !== name && name != gridsize - 1) {
GRID[value][name].addNeighbors(GRID);
}
}
}
// set up enemy
// start in random location
do {
value = AB.randomIntAtoB(1, gridsize - 2);
name = AB.randomIntAtoB(1, gridsize - 2);
} while (occupied(value, name));
ei = value;
ej = name;
shape = new THREE.BoxGeometry(squaresize, BOXHEIGHT, squaresize);
(theenemy = new THREE.Mesh(shape)).material = new THREE.MeshBasicMaterial({
map : enemy_texture
});
ABWorld.scene.add(theenemy);
drawEnemy();
// set up agent
// start in random location
do {
value = AB.randomIntAtoB(1, gridsize - 2);
name = AB.randomIntAtoB(1, gridsize - 2);
} while (occupied(value, name));
ai = value;
aj = name;
shape = new THREE.BoxGeometry(squaresize, BOXHEIGHT, squaresize);
(theagent = new THREE.Mesh(shape)).material = new THREE.MeshBasicMaterial({
map : agent_texture
});
ABWorld.scene.add(theagent);
drawAgent();
ABWorld.scene.background = (new THREE.CubeTextureLoader()).load(SKYBOX_ARRAY, function() {
ABWorld.render();
AB.removeLoading();
AB.runReady = true;
});
}
function drawEnemy() {
theenemy.position.copy(translate(ei, ej));
ABWorld.lookat.copy(theenemy.position);
}
function drawAgent() {
theagent.position.copy(translate(ai, aj));
ABWorld.follow.copy(theagent.position);
}
function moveLogicalEnemy() {
var c = AStarAlgo(GRID[ei][ej], GRID[ai][aj]);
i = c[c.length - 2].i;
j = c[c.length - 2].j;
var k = 0;
for (; k < c.length - 2; k++) {
c[k];
shape = new THREE.BoxGeometry(30, 30, 30);
thepath = new THREE.Mesh(shape);
pathArray[k] = thepath.id;
thepath.material = new THREE.MeshBasicMaterial({
map : path_texture
});
thepath.position.copy(translate(c[k].i, c[k].j));
ABWorld.scene.add(thepath);
}
if (!occupied(i, j)) {
ei = i;
ej = j;
}
}
function moveLogicalAgent(opt_parentWin) {
var i = ai;
var charsetBitSize = aj;
if (opt_parentWin == ACTION_LEFT) {
i--;
} else {
if (opt_parentWin == ACTION_RIGHT) {
i++;
} else {
if (opt_parentWin == ACTION_UP) {
charsetBitSize++;
} else {
if (opt_parentWin == ACTION_DOWN) {
charsetBitSize--;
}
}
}
}
if (!occupied(i, charsetBitSize)) {
ai = i;
aj = charsetBitSize;
}
}
// --- key handling --------------------------------------------------------------------------------------
// This is hard to see while the Mind is also moving the agent:
// AB.mind.getAction() and AB.world.takeAction() are constantly running in a loop at the same time
// have to turn off Mind actions to really see user key control
// we will handle these keys:
var COUNTER = [37, 38, 39, 40];
function counter(params) {
return COUNTER.includes(params.keyCode);
}
function keyHandler(evt) {
return !AB.runReady || !counter(evt) || (37 == evt.keyCode && moveLogicalAgent(ACTION_LEFT), 38 == evt.keyCode && moveLogicalAgent(ACTION_DOWN), 39 == evt.keyCode && moveLogicalAgent(ACTION_RIGHT), 40 == evt.keyCode && moveLogicalAgent(ACTION_UP), evt.stopPropagation(), evt.preventDefault(), false);
}
function badstep() {
return Math.abs(ei - ai) < 2 && Math.abs(ej - aj) < 2;
}
function agentBlocked() {
return occupied(ai - 1, aj) && occupied(ai + 1, aj) && occupied(ai, aj + 1) && occupied(ai, aj - 1);
}
function updateStatusBefore(opt_parentWin) {
var default_favicon = AB.world.getState();
AB.msg(" Step: " + AB.step + " x = (" + default_favicon.toString() + ") a = (" + opt_parentWin + ") ");
}
function updateStatusAfter() {
var default_favicon = AB.world.getState();
var e_total = goodsteps / AB.step * 100;
AB.msg(" y = (" + default_favicon.toString() + ") <br> Bad steps: " + badsteps + " Good steps: " + goodsteps + " Score: " + e_total.toFixed(2) + "% ", 2);
}
AB.world.newRun = function() {
AB.loadingScreen();
AB.runReady = false;
badsteps = 0;
goodsteps = 0;
BOXHEIGHT = 1;
ABWorld.init2d(startRadiusConst, maxRadiusConst, 16768477);
loadResources();
document.onkeydown = keyHandler;
}, AB.world.getState = function() {
return [ai, aj, ei, ej];
}, AB.world.takeAction = function(optionString) {
updateStatusBefore(optionString);
moveLogicalAgent(optionString);
if (AB.step % 2 === 0) {
moveLogicalEnemy();
}
if (badstep()) {
badsteps++;
console.log("No place for Agent to move! Please re-load the game.");
} else {
goodsteps++;
}
drawAgent();
drawEnemy();
updateStatusAfter();
if (agentBlocked()) {
console.log("Agent is trapped on all sides.Please re-load the game.");
AB.abortRun = true;
goodsteps = 0;
musicPause();
soundAlarm();
}
}, AB.world.endRun = function() {
musicPause();
if (AB.abortRun) {
AB.msg(" <br> <font color=red> <B> Sonic(agent) got trapped. Final score zero. </B> </font> ", 3);
} else {
AB.msg(" <br> <font color=green> <B> Run over. </B> </font> ", 3);
}
}, AB.world.getScore = function() {
var ipw = goodsteps / AB.maxSteps * 100;
return Math.round(100 * ipw) / 100;
};
var backmusic = AB.backgroundMusic(MUSIC_BACK);
function musicPlay() {
backmusic.play();
}
function musicPause() {
backmusic.pause();
}
function soundAlarm() {
(new Audio(SOUND_ALARM)).play();
}
function resetGrid() {
i = 1;
for (; i < gridsize - 1; i++) {
j = 1;
for (; j < gridsize - 1; j++) {
if (false === GRID[i][j].iswallormaze) {
GRID[i][j].parent = null;
GRID[i][j].g = 0;
GRID[i][j].h = 0;
GRID[i][j].f = 0;
}
}
}
}
;