// Cloned by Neha G on 11 Nov 2022 from World "Complex World" by Starter user
// Please leave this clone trail here.
// ==== 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 ========================================================================================
// ===================================================================================================================
// 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 = 300;
// Speed of run: Step every n milliseconds. Default 100.
AB.maxSteps = 100000;
// 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.
//---- global constants: -------------------------------------------------------
const show3d = true; // Switch between 3d and 2d view (both using Three.js)
// credit: https://img.freepik.com/free-photo/wooden-flooring-textured-background-design_53876-108357.jpg?w=1800&t=st=1668282163~exp=1668282763~hmac=94cf25b8d8d65d5db5da99bbe29588b75b9c7324abc517dd0942147cff1175cf
const TEXTURE_WALL = '/uploads/gajakon3/RedPolugon1.jpeg' ;
//credit: https://blenderartists.org/uploads/default/original/3X/1/a/1a6e07f673bf5ef4ccb0b1b576179134419c5da8.png
const TEXTURE_MAZE = '/uploads/gajakon3/whitewall.png' ;
const TEXTURE_AGENT = '/uploads/gajakon3/agent.png' ;
//credit:
const TEXTURE_ENEMY = '/uploads/gajakon3/enemy2.png' ;
// Ground
// https://ancientbrain.com/uploads/gajakon3/ocean.jpeg
const GROUND_GRID = "/uploads/gajakon3/grass.png"
const GROUND_DISPLACEMENT = "/uploads/gajakon3/rsz_displacement.png"
// credits:
// http://commons.wikimedia.org/wiki/File:Old_door_handles.jpg
// https://commons.wikimedia.org/wiki/Category:Pac-Man_icons
// https://commons.wikimedia.org/wiki/Category:Skull_and_crossbone_icons
// http://en.wikipedia.org/wiki/File:Inscription_displaying_apices_(from_the_shrine_of_the_Augustales_at_Herculaneum).jpg
//credits:
const MUSIC_BACK = '/uploads/gajakon3/backgroundm.mp3' ;
const SOUND_ALARM = '/uploads/starter/air.horn.mp3' ;
// credits:
// http://www.dl-sounds.com/royalty-free/defense-line/
// http://soundbible.com/1542-Air-Horn.html
const gridsize = 30; // 30; // number of squares along side of world
const NOBOXES = Math.trunc ( (gridsize * gridsize) / 10 ); // 10
// density of maze - number of internal boxes
// (bug) use trunc or can get a non-integer
const squaresize = 100; // size of square in pixels
const MAXPOS = gridsize * squaresize; // length of one side in pixels
const SKYCOLOR = 0xddffdd; // a number, not a string
const startRadiusConst = MAXPOS * 0.8 ; // distance from centre to start the camera at
const maxRadiusConst = MAXPOS * 10 ; // maximum distance from camera we will render things
//---A star global settings---------
// is diagonal move allowed
const diagonal = false ;
// Open and closed set
var openSet = [];
var closedSet = [];
// Start and end
var start;
var end;
// The road taken
var path = [];
var stepVector = [];
//--- change ABWorld defaults: -------------------------------
ABHandler.MAXCAMERAPOS = maxRadiusConst ;
ABHandler.GROUNDZERO = true; // "ground" exists at altitude zero
//--- skybox: -------------------------------
// skybox is a collection of 6 files
// x,y,z positive and negative faces have to be in certain order in the array
// https://threejs.org/docs/#api/en/loaders/CubeTextureLoader
// mountain skybox, credit:
// http://stemkoski.github.io/Three.js/Skybox.html
// https://ancientbrain.com/uploads/gajakon3/side1.jpeg
const SKYBOX_ARRAY = [
"/uploads/gajakon3/img-side1.jpg",
"/uploads/gajakon3/img-side3.jpg", //opp
"/uploads/gajakon3/black.jpg", // top
"/uploads/gajakon3/nvblue.jpg", // bottom
"/uploads/gajakon3/img-side4.jpg", // left
"/uploads/gajakon3/img-side2.jpg" // right
];
// space skybox, credit:
// http://en.spaceengine.org/forum/21-514-1
// x,y,z labelled differently
/*
const SKYBOX_ARRAY = [
"/uploads/starter/sky_pos_z.jpg",
"/uploads/starter/sky_neg_z.jpg",
"/uploads/starter/sky_pos_y.jpg",
"/uploads/starter/sky_neg_y.jpg",
"/uploads/starter/sky_pos_x.jpg",
"/uploads/starter/sky_neg_x.jpg"
];
*/
// urban photographic skyboxes, credit:
// http://opengameart.org/content/urban-skyboxes
// const SKYBOX_ARRAY = [
// "/uploads/starter/posx.jpg",
// "/uploads/starter/negx.jpg",
// "/uploads/starter/posy.jpg",
// "/uploads/starter/negy.jpg",
// "/uploads/starter/posz.jpg",
// "/uploads/starter/negz.jpg"
// ];
// ===================================================================================================================
// === End of tweaker's box ==========================================================================================
// ===================================================================================================================
// You will need to be some sort of JavaScript programmer to change things below the tweaker's box.
//--- Mind can pick one of these actions -----------------
const ACTION_LEFT = 0;
const ACTION_RIGHT = 1;
const ACTION_UP = 2;
const ACTION_DOWN = 3;
const 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
const GRID_BLANK = 0;
const GRID_WALL = 1;
const GRID_MAZE = 2;
var BOXHEIGHT; // 3d or 2d box height
var GRID = new Array(gridsize); // can query GRID about whether squares are occupied, will in fact be initialised as a 2D array
var theagent, theenemy;
var wall_texture, agent_texture, enemy_texture, maze_texture;
// enemy and agent position on squares
var ei, ej, ai, aj;
var badsteps;
var goodsteps;
// Math function
function dist(x1, y1, x2, y2) {
var dx = x1 - x2;
var dy = y1 - y2;
return Math.sqrt(dx * dx + dy * dy);
}
//----A star functions ---------
// Credits: Ancient Brain's A star program by "Coding Train" project - https://ancientbrain.com/world.php?world=2230793148
/**
* Heuristic calculation
*/
function heuristic ( a, b )
{
if ( diagonal ) return ( dist(a.i, a.j, b.i, b.j) );
else
return Math.abs(a.i - b.i) + Math.abs(a.j - b.j);
}
function gfn(a, b) {
if ( diagonal ) return dist(a.i, a.j, b.i, b.j); // 2D distance
else return Math.abs(a.i - b.i) + Math.abs(a.j - b.j); // else go across and down
}
function removeFromArray(arr, elt) {
for (var i = arr.length - 1; i >= 0; i--) if (arr[i] == elt) arr.splice(i, 1);
}
//Define grid object
function Spot(i, j, type = GRID_BLANK) {
// Location
this.i = i;
this.j = j;
// f, g, and h values for A*
this.f = 0;
this.g = 0;
this.h = 0;
// Neighbors
this.neighbors = [];
this.wall = false;
this.maze = false;
// Where did I come from?
this.previous = undefined;
if (type == GRID_WALL) this.wall = true;
if (type == GRID_MAZE) this.maze = true;
// Figure out who my neighbors are
this.addNeighbors = function (grid) {
var i = this.i;
var j = this.j;
if (i < gridsize - 1) this.neighbors.push(grid[i + 1][j]);
if (i > 0) this.neighbors.push(grid[i - 1][j]);
if (j < gridsize - 1) this.neighbors.push(grid[i][j + 1]);
if (j > 0) this.neighbors.push(grid[i][j - 1]);
if (diagonal) {
// diagonals are also neighbours:
if (i > 0 && j > 0) this.neighbors.push(grid[i - 1][j - 1]);
if (i < gridsize - 1 && j > 0) this.neighbors.push(grid[i + 1][j - 1]);
if (i > 0 && j < gridsize - 1) this.neighbors.push(grid[i - 1][j + 1]);
if (i < gridsize - 1 && j < gridsize - 1)
this.neighbors.push(grid[i + 1][j + 1]);
}
};
}
function getNewPositionUsingAstar() {
start = GRID[ei][ej]; // Enemy Position
end = GRID[ai][aj]; // Agent Position
closedSet = [];
openSet = [];
var current = null;
openSet.push(start);
var stopSearch = false;
while ( !stopSearch ) {
if (openSet.length > 0) {
// Best next option
var winner = 0;
for (var i = 0; i < openSet.length; i++)
if (openSet[i].f < openSet[winner].f) winner = i;
current = openSet[winner];
// Did I finish?
if (current === end) {
stopSearch = true;
break;
}
// Best option moves from openSet to closedSet
removeFromArray(openSet, current);
closedSet.push(current);
// Check all the neighbors
var neighbors = current.neighbors;
//--- start of for loop -----------
for (i = 0; i < neighbors.length; i++) {
var neighbor = neighbors[i];
// Valid next spot?
if (!closedSet.includes(neighbor) && !neighbor.wall && !neighbor.maze) {
var g = current.g + gfn(neighbor, current); // add up g values in cumulative way
// Is this a better path than before?
var newPath = false;
if (openSet.includes(neighbor)) {
if (g < neighbor.g) {
neighbor.g = g;
newPath = true;
}
} else {
neighbor.g = g;
newPath = true;
openSet.push(neighbor);
}
// Yes, it's a better path
if (newPath) {
neighbor.h = heuristic(neighbor, end);
neighbor.f = neighbor.g + neighbor.h;
neighbor.previous = current;
}
}
}
//--- end of for loop -----------
} else {
// No route found
stopSearch = true;
break;
}
}
// Handling Path
var nPath = buildPath(current);
var newPosition = { i: start.i, j: start.j };
// Path array contains start and end block, if it contains anything else then move
if( nPath.length > 2 ) {
newPosition.i = nPath[nPath.length-2].i ;
newPosition.j = nPath[nPath.length-2].j ;
console.log("New Path 2", newPath,newPosition )
}
// Reset all grids to original state - this is to clearout and A* logic
resetGrids();
return newPosition;
}
function resetGrids() {
for (var i = 0; i < gridsize; i++){
for (var j = 0; j < gridsize; j++) {
GRID[i][j].previous = undefined;
GRID[i][j].f=GRID[i][j].h=GRID[i][j].g=0;
}
}
}
function buildPath(end) {
var newPath = [];
stepVector = [];
// Traverse revese to get the path
var step = end;
do {
newPath.push(step);
stepVector.push(translate(step.i, step.j));
step = step.previous;
}
while (step.previous)
stepVector = stepVector.slice(1, stepVector.length - 2);
path = [...newPath] // update global path with new path
return newPath
}
function drawPath() {
const radius = 15;
const tubeRadius = 6;
const radialSegments = 8;
const tubularSegments = 24;
var geometry = new THREE.TorusBufferGeometry(radius, tubeRadius, radialSegments, tubularSegments);
stepVector.forEach((vector,index)=>{
var shape = new THREE.Mesh( geometry );
shape.material = new THREE.MeshBasicMaterial({
color: 0xff5733,
opacity: 0.2+ (1-index/stepVector.length),
transparent: true,
});
shape.position.copy ( vector );
shape.rotation.x = 0.5 * -Math.PI;
shape.scale = new THREE.Vector3( 2, 2, 0 );
shape.name = "ASTARPATH"
ABWorld.scene.add(shape);
});
const material = new THREE.LineDashedMaterial( { color: 0xff5733, dashSize: 1, gapSize: 0.5, scale: 2 } );
geometry = new THREE.BufferGeometry().setFromPoints( stepVector );
const line = new THREE.Line( geometry, material );
line.computeLineDistances()
line.name = "ASTARPATHLINE"
ABWorld.scene.add( line );
}
function removePath() {
for(var i=0; i<stepVector.length+3; i++){
ABWorld.scene.remove(ABWorld.scene.getObjectByName("ASTARPATH"));
}
ABWorld.scene.remove(ABWorld.scene.getObjectByName("ASTARPATHLINE"));
}
// --------- A start ---------------------
function loadResources() // asynchronous file loads - call initScene() when all finished
{
var loader1 = new THREE.TextureLoader();
var loader2 = new THREE.TextureLoader();
var loader3 = new THREE.TextureLoader();
var loader4 = new THREE.TextureLoader();
loader1.load ( TEXTURE_WALL, function ( thetexture )
{
thetexture.minFilter = THREE.LinearFilter;
wall_texture = thetexture;
if ( asynchFinished() ) initScene(); // if all file loads have returned
});
loader2.load ( TEXTURE_AGENT, function ( thetexture )
{
thetexture.minFilter = THREE.LinearFilter;
agent_texture = thetexture;
if ( asynchFinished() ) initScene();
});
loader3.load ( TEXTURE_ENEMY, function ( thetexture )
{
thetexture.minFilter = THREE.LinearFilter;
enemy_texture = thetexture;
if ( asynchFinished() ) initScene();
});
loader4.load ( TEXTURE_MAZE, function ( thetexture )
{
thetexture.minFilter = THREE.LinearFilter;
maze_texture = thetexture;
if ( asynchFinished() ) initScene();
});
}
function asynchFinished() // all file loads returned
{
if ( wall_texture && agent_texture && enemy_texture && maze_texture ) return true;
else return false;
}
//--- grid system -------------------------------------------------------------------------------
// my numbering is 0 to gridsize-1
function occupied ( i, j ) // is this square occupied
{
if ( ( ei == i ) && ( ej == j ) ) return true; // variable objects
if ( ( ai == i ) && ( aj == j ) ) return true;
if ( GRID[i][j].wall ) return true; // fixed objects
if ( GRID[i][j].maze ) return true;
return false;
}
// translate my (i,j) 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 ( i, j, k=0 )
{
var v = new THREE.Vector3();
v.y = k;
v.x = ( i * squaresize ) - ( MAXPOS/2 );
v.z = ( j * squaresize ) - ( MAXPOS/2 );
return v;
}
function initScene() // all file loads have returned
{
var i,j, shape, thecube;
// set up GRID as 2D array
for ( i = 0; i < gridsize ; i++ )
GRID[i] = new Array(gridsize);
// set up walls
for ( i = 0; i < gridsize ; i++ )
for ( j = 0; j < gridsize ; j++ )
if ( ( i==0 ) || ( i==gridsize-1 ) || ( j==0 ) || ( j==gridsize-1 ) )
{
GRID[i][j] = new Spot(i, j, GRID_WALL);
drawWall(i,j);
}
else
GRID[i][j] = new Spot(i, j, GRID_BLANK);
// set up maze
for ( var c=1 ; c <= NOBOXES ; c++ )
{
i = AB.randomIntAtoB(1,gridsize-2); // inner squares are 1 to gridsize-2
j = AB.randomIntAtoB(1,gridsize-2);
GRID[i][j] = new Spot(i, j, GRID_MAZE);
shape = new THREE.BoxGeometry ( squaresize, BOXHEIGHT, squaresize );
thecube = new THREE.Mesh( shape );
thecube.material = new THREE.MeshBasicMaterial( { map: maze_texture } );
thecube.position.copy ( translate(i,j) ); // translate my (i,j) grid coordinates to three.js (x,y,z) coordinates
ABWorld.scene.add(thecube);
}
// set up neighbours - A star
for (i = 0; i < gridsize; i++)
for (j = 0; j < gridsize; j++) GRID[i][j].addNeighbors(GRID);
// set up enemy
// start in random location
do
{
i = AB.randomIntAtoB(1,gridsize-2);
j = AB.randomIntAtoB(1,gridsize-2);
}
while ( occupied(i,j) ); // search for empty square
ei = i;
ej = j;
shape = new THREE.SphereGeometry( squaresize/2, 32, 16 );
theenemy = new THREE.Mesh( shape );
theenemy.material = new THREE.MeshBasicMaterial( { map: enemy_texture } );
ABWorld.scene.add(theenemy);
drawEnemy();
// set up agent
// start in random location
do
{
i = AB.randomIntAtoB(1,gridsize-2);
j = AB.randomIntAtoB(1,gridsize-2);
}
while ( occupied(i,j) ); // search for empty square
ai = i;
aj = j;
shape = new THREE.SphereGeometry( squaresize/2, 32, 16 );
theagent = new THREE.Mesh( shape );
theagent.material = new THREE.MeshBasicMaterial( { map: agent_texture } );
ABWorld.scene.add(theagent);
drawAgent();
// Draw Patform
// drawPlatform();
// finally skybox
// setting up skybox is simple
// just pass it array of 6 URLs and it does the asych load
ABWorld.scene.background = new THREE.CubeTextureLoader().load ( SKYBOX_ARRAY, function()
{
ABWorld.render();
AB.removeLoading();
AB.runReady = true; // start the run loop
});
}
function drawWall(i, j) {
var trunkShape = new THREE.CylinderGeometry( squaresize/16, squaresize/2.5, BOXHEIGHT, 32 );
var trunk = new THREE.Mesh( trunkShape );
trunk.material = new THREE.MeshBasicMaterial( { color: 0xaa336a } );
trunk.position.copy ( translate(i,j) ); // translate my (i,j) grid coordinates to three.js (x,y,z) coordinates
ABWorld.scene.add(trunk);
// const radius = 50;
// const radius = 45;
// const tube = 7;
// const radialSegments = 8;
// const tubularSegments = 64;
// const p = 6;
// const q = 7;
// const branchShape = new THREE.IcosahedronBufferGeometry(radius);
// // const branchShape = new THREE.TorusKnotBufferGeometry(radius, tube, tubularSegments, radialSegments, p, q);;
// var branch = new THREE.Mesh( branchShape );
// branch.material = new THREE.MeshBasicMaterial( { color: 0x00ffff*Math.random()*0.001 } );
// branch.position.copy ( translate(i,j,70) );
// ABWorld.scene.add(branch);
}
function drawPlatform() {
// Credits: https://www.youtube.com/watch?v=2AQLMZwQpDo
const loader =new THREE.TextureLoader();
const dpMap = loader.load(GROUND_DISPLACEMENT);
// https://img.freepik.com/free-photo/green-grass-field-background_1252-1098.jpg?w=2000&t=st=1668272635~exp=1668273235~hmac=9a8d81d6e215a5b8d9159ac2b4caf22bb962d129152cb7e481b4cec170179d14
const mapOverlay = loader.load(GROUND_GRID);
floorSize = 500;
const geometry = new THREE.PlaneBufferGeometry(floorSize,floorSize, 64, 64);
const material = new THREE.MeshBasicMaterial({
color: 0xc21e56,
})
for( var i=-100; i<100; i++){
for( var j=-100; j<100; j++){
const platform = new THREE.Mesh( geometry, material );
platform.position.copy(translate(i, j, -170)),
platform.rotation.x = .5 * -Math.PI,
ABWorld.scene.add(platform);
}
}
// //0xCF9FFF
// const p = new THREE.PointLight( 0xffffff, 1);
// p.position.copy(translate(10, 10)),
// p.position.y = 20 * squaresize,
// ABWorld.scene.add(p);
}
// --- draw moving objects -----------------------------------
function drawEnemy() // given ei, ej, draw it
{
console.log("Draw Enemy");
theenemy.position.copy ( translate(ei,ej) ); // translate my (i,j) grid coordinates to three.js (x,y,z) coordinates
theenemy.rotation.y = AB.step*0.5;
ABWorld.lookat.copy ( theenemy.position ); // if camera moving, look back at where the enemy is
}
function drawAgent() // given ai, aj, draw it
{
console.log("Draw Agent");
theagent.position.copy ( translate(ai,aj) ); // translate my (i,j) grid coordinates to three.js (x,y,z) coordinates
theagent.rotation.y = AB.step*0.5;
ABWorld.follow.copy ( theagent.position ); // follow vector = agent position (for camera following agent)
}
// --- take actions -----------------------------------
function moveLogicalEnemy()
{
console.log("Move Logical Enemy")
var newPos = getNewPositionUsingAstar();
console.log("New Position", newPos )
ei = newPos.i;
ej = newPos.j;
drawPath();
}
function moveLogicalAgent( a ) // this is called by the infrastructure that gets action a from the Mind
{
console.log("Move Logical Agent")
var i = ai;
var j = aj;
if ( a == ACTION_LEFT ) i--;
else if ( a == ACTION_RIGHT ) i++;
else if ( a == ACTION_UP ) j++;
else if ( a == ACTION_DOWN ) j--;
if ( ! occupied(i,j) )
{
ai = i;
aj = j;
}
}
// --- 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 OURKEYS = [ 37, 38, 39, 40 ];
function ourKeys ( event ) { return ( OURKEYS.includes ( event.keyCode ) ); }
function keyHandler ( event )
{
if ( ! AB.runReady ) return true; // not ready yet
// if not one of our special keys, send it to default key handling:
if ( ! ourKeys ( event ) ) return true;
// else handle key and prevent default handling:
if ( event.keyCode == 37 ) moveLogicalAgent ( ACTION_LEFT );
if ( event.keyCode == 38 ) moveLogicalAgent ( ACTION_DOWN );
if ( event.keyCode == 39 ) moveLogicalAgent ( ACTION_RIGHT );
if ( event.keyCode == 40 ) moveLogicalAgent ( ACTION_UP );
// when the World is embedded in an iframe in a page, we want arrow key events handled by World and not passed up to parent
event.stopPropagation(); event.preventDefault(); return false;
}
// --- score: -----------------------------------
function badstep() // is the enemy within one square of the agent
{
if ( ( Math.abs(ei - ai) < 2 ) && ( Math.abs(ej - aj) < 2 ) ) return true;
else return false;
}
function agentBlocked() // agent is blocked on all sides, run over
{
return ( occupied (ai-1,aj) &&
occupied (ai+1,aj) &&
occupied ( ai,aj+1) &&
occupied ( ai,aj-1) );
}
function updateStatusBefore(a)
// this is called before anyone has moved on this step, agent has just proposed an action
// update status to show old state and proposed move
{
var x = AB.world.getState();
AB.msg ( " Step: " + AB.step + " x = (" + x.toString() + ") a = (" + a + ") " );
}
function updateStatusAfter() // agent and enemy have moved, can calculate score
{
// new state after both have moved
var y = AB.world.getState();
var score = ( goodsteps / AB.step ) * 100;
AB.msg ( " y = (" + y.toString() + ") <br>" +
" Bad steps: " + badsteps +
" Good steps: " + goodsteps +
" Score: " + score.toFixed(2) + "% ", 2 );
}
AB.world.newRun = function()
{
AB.loadingScreen();
AB.runReady = false;
badsteps = 0;
goodsteps = 0;
if ( show3d )
{
BOXHEIGHT = squaresize;
ABWorld.init3d ( startRadiusConst, maxRadiusConst, SKYCOLOR );
}
else
{
BOXHEIGHT = 1;
ABWorld.init2d ( startRadiusConst, maxRadiusConst, SKYCOLOR );
}
loadResources(); // aynch file loads
// calls initScene() when it returns
document.onkeydown = keyHandler;
};
AB.world.getState = function()
{
var x = [ ai, aj, ei, ej ];
return ( x );
};
AB.world.takeAction = function ( a )
{
//remove old path
removePath();
updateStatusBefore(a); // show status line before moves
moveLogicalAgent(a);
moveLogicalEnemy();
if ( badstep() ) badsteps++;
else goodsteps++;
drawAgent();
drawEnemy();
updateStatusAfter(); // show status line after moves
if ( agentBlocked() ) // if agent blocked in, run over
{
AB.abortRun = true;
goodsteps = 0; // you score zero as far as database is concerned
musicPause();
soundAlarm();
}
};
AB.world.endRun = function()
{
musicPause();
if ( AB.abortRun ) AB.msg ( " <br> <font color=red> <B> Agent trapped. Final score zero. </B> </font> ", 3 );
else AB.msg ( " <br> <font color=green> <B> Run over. </B> </font> ", 3 );
};
AB.world.getScore = function()
{
// only called at end - do not use AB.step because it may have just incremented past AB.maxSteps
var s = ( goodsteps / AB.maxSteps ) * 100; // float like 93.4372778
var x = Math.round (s * 100); // 9344
return ( x / 100 ); // 93.44
};
// --- music and sound effects ----------------------------------------
var backmusic = AB.backgroundMusic ( MUSIC_BACK );
function musicPlay() { backmusic.play(); }
function musicPause() { backmusic.pause(); }
function soundAlarm()
{
var alarm = new Audio ( SOUND_ALARM );
alarm.play(); // play once, no loop
}