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wolf3d-browser/js/actors.js
Brian Harris e0b653888d Wolfenstein 3D browser version 
This is the code for the browser version of Wolfenstein 3D which is
playable on http://www.wolfenstein.com/game_NA.php
2013-05-16 11:34:31 -05:00

519 lines
16 KiB
JavaScript
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/*
* ===========================================================================
*
* Wolf3D Browser Version GPL Source Code
* Copyright (C) 2012 id Software LLC, a ZeniMax Media company.
*
* This file is part of the Wolf3D Browser Version GPL Source Code ("Wolf3D Browser Source Code").
*
* Wolf3D Browser Source Code is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* Wolf3D Browser Source Code is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License version 2
* along with Wolf3D Browser Source Code. If not, see <http://www.gnu.org/licenses/>.
*
* If you have questions concerning this license, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
*
* ===========================================================================
*/
/**
* @namespace
* @description Actors
*/
Wolf.Actors = (function() {
Wolf.setConsts({
SPDPATROL : 512,
SPDDOG : 1500,
FL_SHOOTABLE : 1,
FL_BONUS : 2,
FL_NEVERMARK : 4,
FL_VISABLE : 8,
FL_ATTACKMODE : 16,
FL_FIRSTATTACK : 32,
FL_AMBUSH : 64,
FL_NONMARK : 128,
MAX_GUARDS : 255,
NUMENEMIES : 31,
NUMSTATES : 34,
MINACTORDIST : 0x10000
});
Wolf.setConsts({
en_guard : 0,
en_officer : 1,
en_ss : 2,
en_dog : 3,
en_boss : 4,
en_schabbs : 5,
en_fake : 6,
en_mecha : 7,
en_hitler : 8,
en_mutant : 9,
en_blinky : 10,
en_clyde : 11,
en_pinky : 12,
en_inky : 13,
en_gretel : 14,
en_gift : 15,
en_fat : 16,
// --- Projectiles
en_needle : 17,
en_fire : 18,
en_rocket : 19,
en_smoke : 20,
en_bj : 21,
// --- Spear of destiny!
en_spark : 22,
en_hrocket : 23,
en_hsmoke : 24,
en_spectre : 25,
en_angel : 26,
en_trans : 27,
en_uber : 28,
en_will : 29,
en_death : 30
});
Wolf.setConsts({
st_stand : 0,
st_path1 : 1,
st_path1s : 2,
st_path2 : 3,
st_path3 : 4,
st_path3s : 5,
st_path4 : 6,
st_pain : 7,
st_pain1 : 8,
st_shoot1 : 9,
st_shoot2 : 10,
st_shoot3 : 11,
st_shoot4 : 12,
st_shoot5 : 13,
st_shoot6 : 14,
st_shoot7 : 15,
st_shoot8 : 16,
st_shoot9 : 17,
st_chase1 : 18,
st_chase1s : 19,
st_chase2 : 20,
st_chase3 : 21,
st_chase3s : 22,
st_chase4 : 23,
st_die1 : 24,
st_die2 : 25,
st_die3 : 26,
st_die4 : 27,
st_die5 : 28,
st_die6 : 29,
st_die7 : 30,
st_die8 : 31,
st_die9 : 32,
st_dead : 33,
st_remove : 34
});
var add8dir = [4, 5, 6, 7, 0, 1, 2, 3, 0],
r_add8dir = [4, 7, 6, 5, 0, 1, 2, 3, 0];
/**
* @description Create new actor.
* @memberOf Wolf.Actors
* @param {object} level The level object.
* @returns {object} The new actor object.
*/
function getNewActor(level) {
if (level.state.numGuards > Wolf.MAX_GUARDS) {
return null;
}
var actor = {
x : 0,
y : 0,
angle : 0,
type : 0,
health : 0,
max_health : 0,
speed : 0,
ticcount : 0,
temp2 : 0,
distance : 0,
tile : {
x : 0,
y : 0
},
areanumber : 0,
waitfordoorx : 0,
waitfordoory : 0, // waiting on this door if non 0
flags : 0, // FL_SHOOTABLE, etc
state : 0,
dir : 0,
sprite : 0
};
level.state.guards[level.state.numGuards++] = actor;
return actor;
}
/**
* @description Process a single actor.
* @private
* @param {object} ent The actor object.
* @param {object} level The level object.
* @param {object} player The player object.
* @param {number} tics The number of tics.
* @returns {boolean} False if actor should be removed, otherwise true.
*/
function doGuard(ent, game, tics) { // FIXME: revise!
var think;
//assert( ent->tilex >= 0 && ent->tilex < 64 );
//assert( ent->tiley >= 0 && ent->tiley < 64 );
//assert( ent->dir >= 0 && ent->dir <= 8 );
// ticcounts fire discrete actions separate from think functions
if (ent.ticcount) {
ent.ticcount -= tics;
while (ent.ticcount <= 0) {
//assert( ent->type >= 0 && ent->type < NUMENEMIES );
//assert( ent->state >= 0 && ent->state < NUMSTATES );
think = Wolf.objstate[ent.type][ent.state].action; // end of state action
if (think) {
think(ent, game, tics);
if (ent.state == Wolf.st_remove) {
return false;
}
}
ent.state = Wolf.objstate[ent.type][ent.state].next_state;
if (ent.state == Wolf.st_remove) {
return false;
}
if (!Wolf.objstate[ent.type][ent.state].timeout) {
ent.ticcount = 0;
break;
}
ent.ticcount += Wolf.objstate[ent.type][ent.state].timeout;
}
}
//
// think
//
//assert( ent->type >= 0 && ent->type < NUMENEMIES );
//assert( ent->state >= 0 && ent->state < NUMSTATES );
think = Wolf.objstate[ent.type][ent.state].think;
if (think) {
think(ent, game, tics);
if (ent.state == Wolf.st_remove) {
return false;
}
}
return true;
}
/**
* @description Changes guard's state to that defined in newState.
* @memberOf Wolf.Actors
* @param {object} ent The actor object.
* @param {number} newState The new state.
*/
function stateChange(ent, newState) {
ent.state = newState;
// assert( ent->type >= 0 && ent->type < NUMENEMIES );
if (newState == Wolf.st_remove) {
ent.ticcount = 0;
} else {
// assert( ent->state >= 0 && ent->state < NUMSTATES );
ent.ticcount = Wolf.objstate[ent.type][ent.state].timeout; //0;
}
}
/**
* @description Process all the enemy actors.
* @memberOf Wolf.Actors
* @param {object} level The level object.
* @param {object} player The player object.
* @param {number} tics The number of tics.
*/
function process(game, tics) {
var level = game.level,
player = game.player,
n, tex, guard,
liveGuards = [];
for (n = 0 ; n < level.state.numGuards ; ++n ) {
guard = level.state.guards[n];
if (!doGuard(guard, game, tics)) {
// remove guard from the game forever!
// remove(game, guards[n--]);
Wolf.Sprites.remove(level, guard.sprite);
level.state.guards[n] = null;
continue;
}
Wolf.Sprites.setPos(level, guard.sprite, guard.x, guard.y, guard.angle);
tex = Wolf.objstate[guard.type][guard.state].texture;
if (Wolf.objstate[guard.type][guard.state].rotate) {
if (guard.type == Wolf.en_rocket || guard.type == Wolf.en_hrocket) {
tex += r_add8dir[Wolf.Math.get8dir( Wolf.Angle.distCW(Wolf.FINE2RAD(player.angle), Wolf.FINE2RAD(guard.angle)))];
} else {
tex += add8dir[Wolf.Math.get8dir( Wolf.Angle.distCW(Wolf.FINE2RAD(player.angle), Wolf.FINE2RAD(guard.angle)))];
}
}
Wolf.Sprites.setTex(level, guard.sprite, 0, tex);
}
for (n = 0 ; n < level.state.numGuards ; ++n ) {
if (level.state.guards[n]) {
liveGuards.push(level.state.guards[n]);
}
}
level.state.guards = liveGuards;
level.state.numGuards = liveGuards.length;
}
/**
* @description Reset and clear the enemy actors in the level.
* @memberOf Wolf.Actors
* @param {object} level The level object.
*/
function resetGuards(level) {
level.state.guards = [];
level.state.numGuards = 0;
//New = NULL;
}
/**
* @description Spawn a new enemy actor at the given position.
* @memberOf Wolf.Actors
* @param {object} level The level object.
* @param {number} skill The difficulty level.
* @param {number} which The actor type.
* @param {number} x The x position.
* @param {number} y The y position.
* @param {number} dir The direction.
* @returns {object} The new actor object or null if actor creation failed.
*/
function spawn(level, skill, which, x, y, dir) {
var ent = getNewActor(level);
if (!ent) {
return null;
}
ent.x = Wolf.TILE2POS(x);
ent.y = Wolf.TILE2POS(y);
ent.tile.x = x;
ent.tile.y = y;
// assert( dir >= 0 && dir <= 4 );
ent.angle = Wolf.Math.dir4angle[dir];
ent.dir = Wolf.Math.dir4to8[dir];
ent.areanumber = level.areas[x][y];
if (ent.areanumber < 0) {
// ambush marker tiles are listed as -3 area
ent.areanumber = 0;
}
// assert( ent->areanumber >= 0 && ent->areanumber < NUMAREAS );
ent.type = which;
ent.health = Wolf.starthitpoints[skill][which];
ent.sprite = Wolf.Sprites.getNewSprite(level);
return ent;
}
/**
* @description Spawn a dead guard.
* @memberOf Wolf.Actors
* @param {object} level The level object.
* @param {number} skill The difficulty level.
* @param {number} which The actor type.
* @param {number} x The x position.
* @param {number} y The y position.
*/
function spawnDeadGuard(level, skill, which, x, y) {
var self = spawn(level, skill, which, x, y, Wolf.Math.dir4_nodir);
if (!self) {
return;
}
self.state = Wolf.st_dead;
self.speed = 0;
self.health = 0;
self.ticcount = Wolf.objstate[which][Wolf.st_dead].timeout ? Wolf.Random.rnd() % Wolf.objstate[which][Wolf.st_dead].timeout + 1 : 0;
}
/**
* @description Spawn a patrolling guard.
* @memberOf Wolf.Actors
* @param {object} level The level object.
* @param {number} skill The difficulty level.
* @param {number} which The actor type.
* @param {number} x The x position.
* @param {number} y The y position.
*/
function spawnPatrol(level, skill, which, x, y, dir) {
var self = spawn(level, skill, which, x, y, dir);
if (!self) {
return;
}
self.state = Wolf.st_path1;
self.speed = (which == Wolf.en_dog) ? Wolf.SPDDOG : Wolf.SPDPATROL;
self.distance = Wolf.TILEGLOBAL;
self.ticcount = Wolf.objstate[which][Wolf.st_path1].timeout ? Wolf.Random.rnd() % Wolf.objstate[which][Wolf.st_path1].timeout + 1 : 0;
self.flags |= Wolf.FL_SHOOTABLE;
level.state.totalMonsters++;
}
/**
* @description Spawn a standing guard.
* @memberOf Wolf.Actors
* @param {object} level The level object.
* @param {number} skill The difficulty level.
* @param {number} which The actor type.
* @param {number} x The x position.
* @param {number} y The y position.
*/
function spawnStand(level, skill, which, x, y, dir) {
var self = spawn(level, skill, which, x, y, dir);
if (!self) {
return;
}
self.state = Wolf.st_stand;
self.speed = Wolf.SPDPATROL;
self.ticcount = Wolf.objstate[which][Wolf.st_stand].timeout ? Wolf.Random.rnd() % Wolf.objstate[which][Wolf.st_stand].timeout + 1 : 0;
self.flags |= Wolf.FL_SHOOTABLE;
if (level.tileMap[x][y] & Wolf.AMBUSH_TILE) {
self.flags |= Wolf.FL_AMBUSH;
}
level.state.totalMonsters++;
}
function spawnBoss(level, skill, which, x, y) {
var self,
face;
switch (which) {
case Wolf.en_boss:
case Wolf.en_schabbs:
case Wolf.en_fat:
case Wolf.en_hitler:
face = Wolf.Math.dir4_south;
break;
case Wolf.en_fake:
case Wolf.en_gretel:
case Wolf.en_gift:
face = Wolf.Math.dir4_north;
break;
case Wolf.en_trans:
case Wolf.en_uber:
case Wolf.en_will:
case Wolf.en_death:
case Wolf.en_angel:
case Wolf.en_spectre:
face = Wolf.Math.dir4_nodir;
break;
default:
face = Wolf.Math.dir4_nodir;
break;
}
self = spawn(level, skill, which, x, y, face);
if (!self) {
return;
}
self.state = which == Wolf.en_spectre ? Wolf.st_path1 : Wolf.st_stand;
self.speed = Wolf.SPDPATROL;
self.health = Wolf.starthitpoints[skill][which];
self.ticcount = Wolf.objstate[which][Wolf.st_stand].timeout ? Wolf.Random.rnd() % Wolf.objstate[which][Wolf.st_stand].timeout + 1 : 0;
self.flags |= Wolf.FL_SHOOTABLE | Wolf.FL_AMBUSH;
level.state.totalMonsters++;
}
function spawnGhosts(level, skill, which, x, y) {
var self = spawn(level, skill, which, x, y, Wolf.Math.dir4_nodir);
if (!self) {
return;
}
self.state = Wolf.st_chase1;
self.speed = Wolf.SPDPATROL * 3;
self.health = Wolf.starthitpoints[skill][which];
self.ticcount = Wolf.objstate[which][Wolf.st_chase1].timeout ? Wolf.Random.rnd() % Wolf.objstate[which][Wolf.st_chase1].timeout + 1: 0;
self.flags |= Wolf.FL_AMBUSH;
level.state.totalMonsters++;
}
function spawnBJVictory(player, level, skill) {
var x = Wolf.POS2TILE(player.position.x),
y = Wolf.POS2TILE(player.position.y),
bj = spawn(level, skill, Wolf.en_bj, x, y + 1, Wolf.Math.dir4_north);
if (!bj) {
return;
}
bj.x = player.position.x;
bj.y = player.position.y;
bj.state = Wolf.st_path1;
bj.speed = Wolf.BJRUNSPEED;
bj.flags = Wolf.FL_NONMARK; // FL_NEVERMARK;
bj.temp2 = 6;
bj.ticcount = 1;
}
return {
process : process,
resetGuards : resetGuards,
getNewActor : getNewActor,
spawn : spawn,
spawnDeadGuard : spawnDeadGuard,
spawnPatrol : spawnPatrol,
spawnStand : spawnStand,
spawnBoss : spawnBoss,
spawnGhosts : spawnGhosts,
spawnBJVictory : spawnBJVictory,
stateChange : stateChange
};
})();
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