// =============================================================================================
// More complex starter World for WWM
// 3d-effect Maze World (really a 2-D problem)
// Mark Humphrys, 2016.
//
// 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)
// =============================================================================================
// =============================================================================================
// How to play:
// The user has to move the Ross player away from Lisa - the "enemy" using the arrow keys.
// A timer is set and the user has to make sure that the player Ross is kept away from Lisa until time is up.
// =============================================================================================
const CLOCKTICK = 150; // speed of run - move things every n milliseconds
const MAXSTEPS = 150; // length of a run before final score
//---- global constants: -------------------------------------------------------
const gridsize = 30; // number of squares along side of world
const squaresize = 100; // size of square in pixels
const MAXPOS = gridsize * squaresize; // length of one side in pixels
const NOBOXES = Math.trunc ( (gridsize * gridsize) / 15 );
const SKYCOLOR = 0xffffcc; // a number, not a string
const BLANKCOLOR = SKYCOLOR ; // make objects this color until texture arrives (from asynchronous file read)
const LIGHTCOLOR = 0xffffff ;
const startRadiusConst = MAXPOS * 0.8 ; // distance from centre to start the camera at
const skyboxConst = MAXPOS * 3 ; // where to put skybox
const maxRadiusConst = MAXPOS * 5 ; // maximum distance from camera we will render things
//--- 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;
// contents of a grid square
const GRID_BLANK = 0;
const GRID_WALL = 1;
const GRID_MAZE = 2;
// --- some useful random functions -------------------------------------------
function randomfloatAtoB ( A, B )
{
return ( A + ( Math.random() * (B-A) ) );
}
function randomintAtoB ( A, B )
{
return ( Math.round ( randomfloatAtoB ( A, B ) ) );
}
function randomBoolean()
{
if ( Math.random() < 0.5 ) { return false; }
else { return true; }
}
function randomPick ( a, b )
{
if ( randomBoolean() )
return a;
else
return b;
}
//---- start of World class -------------------------------------------------------
function World() {
// most of World can be private
// regular "var" syntax means private variables:
var GRID = new Array(gridsize); // can query GRID about whether squares are occupied, will in fact be initialised as a 2D array
var WALLS = new Array ( 4 * gridsize ); // need to keep handle to each wall block object so can find it later to paint it
var MAZE = new Array ( NOBOXES );
var theagent, theenemy;
var agentRotation = 0;
var enemyRotation = 0; // with 3D models, current rotation away from default orientation
// enemy and agent position on squares
var ei, ej, ai, aj;
var badsteps;
var goodsteps;
var step;
var self = this; // needed for private fn to call public fn - see below
function initGrid()
{
for (var i = 0; i < gridsize ; i++)
{
GRID[i] = new Array(gridsize); // each element is an array
for (var j = 0; j < gridsize ; j++)
{
GRID[i][j] = GRID_BLANK ;
}
}
}
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] == GRID_WALL ) return true; // fixed objects
if ( GRID[i][j] == GRID_MAZE ) return true;
return false;
}
function translate ( x )
{
return ( x - ( MAXPOS/2 ) );
}
// --- asynch load textures from file ----------------------------------------
// credits:
function loadTextures()
{
//var manager = new THREE.LoadingManager();
//var loader = new THREE.OBJLoader( manager );
//loader.load( "/uploads/starter/skelet.obj", buildenemy );
THREE.Loader.Handlers.add( /.tga$/i, new THREE.TGALoader() );
var m = new THREE.MTLLoader();
m.setTexturePath ( "/uploads/lisa49/" );
m.setPath ( "/uploads/lisa49/" );
m.load( "girla.mtl", function( materials ) {
materials.preload();
var o = new THREE.OBJLoader();
o.setMaterials ( materials );
o.setPath ( "/uploads/lisa49/" );
o.load( "girla.obj", function ( object ) {
addgirl ( object );
} );
} );
THREE.Loader.Handlers.add( /.tga$/i, new THREE.TGALoader() );
var b = new THREE.MTLLoader();
b.setTexturePath ( "/uploads/lisa49/" );
b.setPath ( "/uploads/lisa49/" );
b.load( "gohan.mtl", function( materials ) {
materials.preload();
var r = new THREE.OBJLoader();
r.setMaterials ( materials );
r.setPath ( "/uploads/lisa49/" );
r.load( "gohan.obj", function ( boyObj ) {
addboy ( boyObj );
} );
} );
var loader1 = new THREE.TextureLoader();
loader1.load ( '/uploads/lisa49/rok.jpg', function ( thetexture ) {
thetexture.minFilter = THREE.LinearFilter;
paintWalls ( new THREE.MeshBasicMaterial( { map: thetexture } ) );
} );
var loader2 = new THREE.TextureLoader();
loader2.load ('/uploads/lisa49/glitter3.jpg', function ( thetexture ) {
thetexture.minFilter = THREE.LinearFilter;
paintMaze ( new THREE.MeshBasicMaterial( { map: thetexture } ) );
} );
}
function buildenemy ( object ) {
object.scale.multiplyScalar ( 4 ); // make 3d object n times bigger
object.traverse( paintEnemy );
theenemy = object;
threeworld.scene.add( theenemy );
}
function buildagent ( object ) {
object.traverse( paintAgent );
theagent = boyObj;
threeworld.scene.add( theagent );
}
function addgirl ( object ){
object.scale.multiplyScalar ( 10 );
theenemy = object;
threeworld.scene.add( theenemy );
// theagent = object;
// threeworld.scene.add( theagent );
}
function addboy ( object ){
object.scale.multiplyScalar ( 5 );
theagent = object;
threeworld.scene.add( theagent );
// theenemy = object;
// threeworld.scene.add( theenemy );
}
function initSkybox() {
// www.custommapmakers.org/skyboxes.php
var materialArray = [
( new THREE.MeshBasicMaterial ( { map: THREE.ImageUtils.loadTexture( "/uploads/lisa49/delirious_ft.jpg" ), side: THREE.BackSide } ) ),
( new THREE.MeshBasicMaterial ( { map: THREE.ImageUtils.loadTexture( "/uploads/lisa49/delirious_bk.jpg" ), side: THREE.BackSide } ) ),
( new THREE.MeshBasicMaterial ( { map: THREE.ImageUtils.loadTexture( "/uploads/lisa49/delirious_up.jpg" ), side: THREE.BackSide } ) ),
( new THREE.MeshBasicMaterial ( { map: THREE.ImageUtils.loadTexture( "/uploads/lisa49/delirious_dn.jpg" ), side: THREE.BackSide } ) ),
( new THREE.MeshBasicMaterial ( { map: THREE.ImageUtils.loadTexture( "/uploads/lisa49/delirious_rt.jpg" ), side: THREE.BackSide } ) ),
( new THREE.MeshBasicMaterial ( { map: THREE.ImageUtils.loadTexture( "/uploads/lisa49/delirious_lf.jpg" ), side: THREE.BackSide } ) ),
];
var skyGeometry = new THREE.CubeGeometry ( skyboxConst, skyboxConst, skyboxConst );
var skyMaterial = new THREE.MeshFaceMaterial ( materialArray );
var theskybox = new THREE.Mesh ( skyGeometry, skyMaterial );
threeworld.scene.add( theskybox ); // We are inside a giant cube
var floorMaterial = new THREE.MeshBasicMaterial( {map: THREE.ImageUtils.loadTexture('/uploads/lisa49/floor.jpg'), side:THREE.DoubleSide} );
var floorGeometry = new THREE.PlaneGeometry((WALLS.length*24),(WALLS.length*24),0, 0);
var floor = new THREE.Mesh(floorGeometry, floorMaterial);
floor.position.y = -55;
floor.position.x = -5;
floor.rotation.x = Math.PI / 2;
threeworld.scene.add(floor);
}
function initLogicalWalls() // set up logical walls in data structure, whether doing graphical run or not
{
for (var i = 0; i < gridsize ; i++)
for (var j = 0; j < gridsize ; j++)
if ( ( i==0 ) || ( i==gridsize-1 ) || ( j==0 ) || ( j==gridsize-1 ) )
{
GRID[i][j] = GRID_WALL ;
}
}
function initThreeWalls() // graphical run only, set up blank boxes, painted later
{
var t = 0;
for (var i = 0; i < gridsize ; i++)
for (var j = 0; j < gridsize ; j++)
if ( GRID[i][j] == GRID_WALL )
{
var shape = new THREE.BoxGeometry( squaresize, squaresize, squaresize );
var thecube = new THREE.Mesh( shape );
thecube.material.color.setHex( BLANKCOLOR );
thecube.position.x = translate ( i * squaresize ); // translate my simple (i,j) block-numbering coordinates to three.js (x,y,z) coordinates
thecube.position.z = translate ( j * squaresize );
thecube.position.y = 0;
threeworld.scene.add(thecube);
WALLS[t] = thecube; // save it for later
t++;
}
}
function paintWalls ( material ) // paint blank boxes
{
for ( var i = 0; i < WALLS.length; i++ )
{
if ( WALLS[i] ) WALLS[i].material = material;
}
}
function initLogicalMaze()
{
for ( var c=1 ; c <= NOBOXES ; c++ )
{
var i = randomintAtoB(2,gridsize-3); // inner squares are 1 to gridsize-2
var j = randomintAtoB(2,gridsize-3);
GRID[i][j] = GRID_MAZE ;
}
}
function initThreeMaze()
{
var t = 0;
for (var i = 0; i < gridsize ; i++)
for (var j = 0; j < gridsize ; j++)
if ( GRID[i][j] == GRID_MAZE )
{
var shape = new THREE.BoxGeometry( squaresize, squaresize, squaresize );
var thecube = new THREE.Mesh( shape );
thecube.material.color.setHex( BLANKCOLOR );
thecube.position.x = translate ( i * squaresize );
thecube.position.z = translate ( j * squaresize );
thecube.position.y = 0;
threeworld.scene.add(thecube);
MAZE[t] = thecube; // save it for later
t++;
}
}
function paintMaze ( material )
{
for ( var i = 0; i < MAZE.length; i++ )
{
if ( MAZE[i] ) MAZE[i].material = material;
}
}
// --- enemy functions -----------------------------------
function drawEnemy() // given ei, ej, draw it
{
if ( theenemy )
{
var x = translate ( ei * squaresize );
var z = translate ( ej * squaresize );
var y = ( -1 * squaresize );
theenemy.position.x = x;
theenemy.position.y = y;
theenemy.position.z = z;
threeworld.lookat.copy ( theenemy.position ); // if camera moving, look back at where the enemy is
threeworld.lookat.y = ( squaresize * 1.5 ); // point camera higher up
}
}
function initLogicalEnemy()
{
// start in random location:
var i, j;
do
{
i = randomintAtoB(1,gridsize-2);
j = randomintAtoB(1,gridsize-2);
}
while ( occupied(i,j) ); // search for empty square
ei = i;
ej = j;
}
function igetAction(){
if ( ei < ai ) return ( ACTION_RIGHT );
if ( ei > ai ) return ( ACTION_LEFT );
return ( ACTION_STAYSTILL );
}
function jgetAction(){
if ( ej < aj ) return ( ACTION_UP );
if ( ej > aj ) return ( ACTION_DOWN );
return ( ACTION_STAYSTILL );
}
function enemyGetAction(){
return randomPick ( igetAction(), jgetAction() );
}
function moveLogicalEnemy(){
var a = enemyGetAction();
var i = ei;
var j = ej;
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) )
{
if ( true )
{
if ( a == ACTION_LEFT ) { rotateEnemyTowards ( 3 * (Math.PI / 2) ); }
else if ( a == ACTION_RIGHT ) { rotateEnemyTowards ( 1 * (Math.PI / 2) ); }
else if ( a == ACTION_UP ) { rotateEnemyTowards ( 0 * (Math.PI / 2) ); }
else if ( a == ACTION_DOWN ) { rotateEnemyTowards ( 2 * (Math.PI / 2) ); }
}
ei = i;
ej = j;
}
}
const INTERIMROT = 10; // number of interim rotations drawn when model turns round
// all rotations positive 0 to 2 PI
// interim renders not working
// temporary solution - rotate half-way - will continue the rotation later
function rotateEnemyTowards ( newRotation )
{
if ( enemyRotation == newRotation ) return;
// else
var x = ( enemyRotation + newRotation ) / 2;
theenemy.rotation.set ( 0, x, 0 );
enemyRotation = x;
}
// --- agent functions -----------------------------------
function drawAgent() // given ai, aj, draw it
{
if ( theagent )
{
var x = translate ( ai * squaresize );
var z = translate ( aj * squaresize );
var y = ( -1 * squaresize );
theagent.position.x = x;
theagent.position.y = y;
theagent.position.z = z;
threeworld.follow.copy ( theagent.position ); // follow vector = agent position (for camera following agent)
threeworld.follow.y = ( squaresize * 1.5 ); // put camera higher up
}
}
function initLogicalAgent()
{
// start in random location:
var i, j;
do
{
i = randomintAtoB(1,gridsize-2);
j = randomintAtoB(1,gridsize-2);
}
while ( occupied(i,j) ); // search for empty square
ai = i;
aj = j;
}
function moveLogicalAgent( a ) // this is called by the infrastructure that gets action a from the Mind
{
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) )
{
if ( true )
{
// if going to actually move, then turn body towards move
// rotate by some amount of radians from the normal position
// in degrees: +0, +90, +180, +270
if ( a == ACTION_LEFT ) { rotateAgentTowards ( 3 * (Math.PI / 2) ); }
else if ( a == ACTION_RIGHT ) { rotateAgentTowards ( 1 * (Math.PI / 2) ); }
else if ( a == ACTION_UP ) { rotateAgentTowards ( 0 * (Math.PI / 2) ); }
else if ( a == ACTION_DOWN ) { rotateAgentTowards ( 2 * (Math.PI / 2) ); }
}
ai = i;
aj = j;
}
}
function keyHandler(e)
// user control
// Note that this.takeAction(a) is constantly running at same time, redrawing the screen.
{
if (e.keyCode == 37) moveLogicalAgent ( ACTION_LEFT );
if (e.keyCode == 38) moveLogicalAgent ( ACTION_DOWN );
if (e.keyCode == 39) moveLogicalAgent ( ACTION_RIGHT );
if (e.keyCode == 40) moveLogicalAgent ( ACTION_UP );
}
function rotateAgentTowards ( newRotation )
{
if ( agentRotation == newRotation ) return;
// else
var x = ( agentRotation + newRotation ) / 2;
theagent.rotation.set ( 0, x, 0 );
agentRotation = x;
}
// --- score: -----------------------------------
function badstep() // is the enemy within one square of the agent
{
var lost = "!";
//if ( ( Math.abs(ei - ai) < 2 ) && ( Math.abs(ej - aj) < 2 ) )
// return $("#user_span1").html( "<h2><center><font color= pink><B> Yas! Ross is Lisa's now! </B></center></font></h2> " );
//else return false;
}
function updateStatus()
{
var score = self.getScore();
var status = " SECONDS LEFT: " + ((MAXSTEPS-step)*100)/1000;
var descrip = "<font color = brown>Use the arrow keys to help Ross get away from Lisa.</br> Good luck ;)</font><br /> <br /> ";
$("#user_span1").html(descrip +status );
if((MAXSTEPS-step) == 0)
return $("#user_span1").html( "<h2><center><font color= pink><B> Dammit! Ross is a free man now. </B></center></font></h2> " );
if ( ( Math.abs(ei - ai) < 2 ) && ( Math.abs(ej - aj) < 2 ))
return $("#user_span1").html( "<h2><center><font color= pink><B> Yas! Ross is Lisa's now! </B></center></font></h2> " );
}
//--- public functions / interface / API ----------------------------------------------------------
// must have this public variable:
this.endCondition; // If set to true, run will end.
this.newRun = function()
{
this.endCondition = false;
badsteps = 0;
goodsteps = 0;
step = 0;
// define logical data structure for the World, even if no graphical representation:
initGrid();
initLogicalWalls();
initLogicalMaze();
initLogicalAgent();
initLogicalEnemy();
if ( true )
{
threeworld.init3d ( startRadiusConst, maxRadiusConst, SKYCOLOR );
// light
var ambient = new THREE.AmbientLight();
threeworld.scene.add( ambient );
var thelight = new THREE.DirectionalLight ( LIGHTCOLOR, 3 );
thelight.position.set ( startRadiusConst, startRadiusConst, startRadiusConst );
threeworld.scene.add(thelight);
// music
var x = "<audio id=theaudio src=/uploads/starter/SuspenseStrings.mp3 autoplay loop> </audio>";
$("#user_span2").html( x );
// music credit
// http://www.dl-sounds.com/royalty-free/suspense-strings/
initSkybox();
initThreeWalls();
initThreeMaze();
loadTextures(); // will return sometime later, but can go ahead and render now
document.onkeydown = keyHandler;
}
};
this.getState = function()
{
var x = [ ai, aj, ei, ej ];
return ( x );
};
this.takeAction = function ( a )
{
step++;
moveLogicalAgent(a);
if ( ( step % 2 ) == 0 ) // slow the enemy down to every nth step
moveLogicalEnemy();
if ( badstep() )
badsteps++;
else
goodsteps++;
if ( true )
{
drawAgent();
drawEnemy();
updateStatus();
}
};
this.endRun = function()
{
};
this.getScore = function()
{
return goodsteps;
};
}
//---- end of World class -------------------------------------------------------