/* * Copyright (C) 1997-2001 Id Software, Inc. * * This program 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. * * This program 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 along with * this program; if not, write to the Free Software Foundation, Inc., 59 Temple * Place - Suite 330, Boston, MA 02111-1307, USA. * */ // Created on 04.12.2003 by RST. // $Id: Fire.java,v 1.5 2005-02-20 21:50:36 salomo Exp $ package jake2.game; import jake2.Defines; import jake2.Globals; import jake2.util.Lib; import jake2.util.Math3D; public class Fire { /* * ================= fire_hit * * Used for all impact (hit/punch/slash) attacks ================= */ public static boolean fire_hit(edict_t self, float[] aim, int damage, int kick) { trace_t tr; float[] forward = { 0, 0, 0 }, right = { 0, 0, 0 }, up = { 0, 0, 0 }; float[] v = { 0, 0, 0 }; float[] point = { 0, 0, 0 }; float range; float[] dir = { 0, 0, 0 }; //see if enemy is in range Math3D.VectorSubtract(self.enemy.s.origin, self.s.origin, dir); range = Math3D.VectorLength(dir); if (range > aim[0]) return false; if (aim[1] > self.mins[0] && aim[1] < self.maxs[0]) { // the hit is straight on so back the range up to the edge of their // bbox range -= self.enemy.maxs[0]; } else { // this is a side hit so adjust the "right" value out to the edge of // their bbox if (aim[1] < 0) aim[1] = self.enemy.mins[0]; else aim[1] = self.enemy.maxs[0]; } Math3D.VectorMA(self.s.origin, range, dir, point); tr = GameBase.gi.trace(self.s.origin, null, null, point, self, Defines.MASK_SHOT); if (tr.fraction < 1) { if (0 == tr.ent.takedamage) return false; // if it will hit any client/monster then hit the one we wanted to // hit if ((tr.ent.svflags & Defines.SVF_MONSTER) != 0 || (tr.ent.client != null)) tr.ent = self.enemy; } Math3D.AngleVectors(self.s.angles, forward, right, up); Math3D.VectorMA(self.s.origin, range, forward, point); Math3D.VectorMA(point, aim[1], right, point); Math3D.VectorMA(point, aim[2], up, point); Math3D.VectorSubtract(point, self.enemy.s.origin, dir); // do the damage GameUtil.T_Damage(tr.ent, self, self, dir, point, Globals.vec3_origin, damage, kick / 2, Defines.DAMAGE_NO_KNOCKBACK, Defines.MOD_HIT); if (0 == (tr.ent.svflags & Defines.SVF_MONSTER) && (null == tr.ent.client)) return false; // do our special form of knockback here Math3D.VectorMA(self.enemy.absmin, 0.5f, self.enemy.size, v); Math3D.VectorSubtract(v, point, v); Math3D.VectorNormalize(v); Math3D.VectorMA(self.enemy.velocity, kick, v, self.enemy.velocity); if (self.enemy.velocity[2] > 0) self.enemy.groundentity = null; return true; } /* * ================= fire_lead * * This is an internal support routine used for bullet/pellet based weapons. * ================= */ public static void fire_lead(edict_t self, float[] start, float[] aimdir, int damage, int kick, int te_impact, int hspread, int vspread, int mod) { trace_t tr; float[] dir = { 0, 0, 0 }; float[] forward = { 0, 0, 0 }, right = { 0, 0, 0 }, up = { 0, 0, 0 }; float[] end = { 0, 0, 0 }; float r; float u; float[] water_start = { 0, 0, 0 }; boolean water = false; int content_mask = Defines.MASK_SHOT | Defines.MASK_WATER; tr = GameBase.gi.trace(self.s.origin, null, null, start, self, Defines.MASK_SHOT); if (!(tr.fraction < 1.0)) { Math3D.vectoangles(aimdir, dir); Math3D.AngleVectors(dir, forward, right, up); r = Lib.crandom() * hspread; u = Lib.crandom() * vspread; Math3D.VectorMA(start, 8192, forward, end); Math3D.VectorMA(end, r, right, end); Math3D.VectorMA(end, u, up, end); if ((GameBase.gi.pointcontents.pointcontents(start) & Defines.MASK_WATER) != 0) { water = true; Math3D.VectorCopy(start, water_start); content_mask &= ~Defines.MASK_WATER; } tr = GameBase.gi.trace(start, null, null, end, self, content_mask); // see if we hit water if ((tr.contents & Defines.MASK_WATER) != 0) { int color; water = true; Math3D.VectorCopy(tr.endpos, water_start); if (!Math3D.VectorEquals(start, tr.endpos)) { if ((tr.contents & Defines.CONTENTS_WATER) != 0) { if (Lib.strcmp(tr.surface.name, "*brwater") == 0) color = Defines.SPLASH_BROWN_WATER; else color = Defines.SPLASH_BLUE_WATER; } else if ((tr.contents & Defines.CONTENTS_SLIME) != 0) color = Defines.SPLASH_SLIME; else if ((tr.contents & Defines.CONTENTS_LAVA) != 0) color = Defines.SPLASH_LAVA; else color = Defines.SPLASH_UNKNOWN; if (color != Defines.SPLASH_UNKNOWN) { GameBase.gi.WriteByte(Defines.svc_temp_entity); GameBase.gi.WriteByte(Defines.TE_SPLASH); GameBase.gi.WriteByte(8); GameBase.gi.WritePosition(tr.endpos); GameBase.gi.WriteDir(tr.plane.normal); GameBase.gi.WriteByte(color); GameBase.gi.multicast(tr.endpos, Defines.MULTICAST_PVS); } // change bullet's course when it enters water Math3D.VectorSubtract(end, start, dir); Math3D.vectoangles(dir, dir); Math3D.AngleVectors(dir, forward, right, up); r = Lib.crandom() * hspread * 2; u = Lib.crandom() * vspread * 2; Math3D.VectorMA(water_start, 8192, forward, end); Math3D.VectorMA(end, r, right, end); Math3D.VectorMA(end, u, up, end); } // re-trace ignoring water this time tr = GameBase.gi.trace(water_start, null, null, end, self, Defines.MASK_SHOT); } } // send gun puff / flash if (!((tr.surface != null) && 0 != (tr.surface.flags & Defines.SURF_SKY))) { if (tr.fraction < 1.0) { if (tr.ent.takedamage != 0) { GameUtil.T_Damage(tr.ent, self, self, aimdir, tr.endpos, tr.plane.normal, damage, kick, Defines.DAMAGE_BULLET, mod); } else { if (!"sky".equals(tr.surface.name)) { GameBase.gi.WriteByte(Defines.svc_temp_entity); GameBase.gi.WriteByte(te_impact); GameBase.gi.WritePosition(tr.endpos); GameBase.gi.WriteDir(tr.plane.normal); GameBase.gi.multicast(tr.endpos, Defines.MULTICAST_PVS); if (self.client != null) GameWeapon.PlayerNoise(self, tr.endpos, Defines.PNOISE_IMPACT); } } } } // if went through water, determine where the end and make a bubble // trail if (water) { float[] pos = { 0, 0, 0 }; Math3D.VectorSubtract(tr.endpos, water_start, dir); Math3D.VectorNormalize(dir); Math3D.VectorMA(tr.endpos, -2, dir, pos); if ((GameBase.gi.pointcontents.pointcontents(pos) & Defines.MASK_WATER) != 0) Math3D.VectorCopy(pos, tr.endpos); else tr = GameBase.gi.trace(pos, null, null, water_start, tr.ent, Defines.MASK_WATER); Math3D.VectorAdd(water_start, tr.endpos, pos); Math3D.VectorScale(pos, 0.5f, pos); GameBase.gi.WriteByte(Defines.svc_temp_entity); GameBase.gi.WriteByte(Defines.TE_BUBBLETRAIL); GameBase.gi.WritePosition(water_start); GameBase.gi.WritePosition(tr.endpos); GameBase.gi.multicast(pos, Defines.MULTICAST_PVS); } } /* * ================= fire_bullet * * Fires a single round. Used for machinegun and chaingun. Would be fine for * pistols, rifles, etc.... ================= */ public static void fire_bullet(edict_t self, float[] start, float[] aimdir, int damage, int kick, int hspread, int vspread, int mod) { fire_lead(self, start, aimdir, damage, kick, Defines.TE_GUNSHOT, hspread, vspread, mod); } /* * ================= fire_shotgun * * Shoots shotgun pellets. Used by shotgun and super shotgun. * ================= */ public static void fire_shotgun(edict_t self, float[] start, float[] aimdir, int damage, int kick, int hspread, int vspread, int count, int mod) { int i; for (i = 0; i < count; i++) fire_lead(self, start, aimdir, damage, kick, Defines.TE_SHOTGUN, hspread, vspread, mod); } public static void fire_blaster(edict_t self, float[] start, float[] dir, int damage, int speed, int effect, boolean hyper) { edict_t bolt; trace_t tr; Math3D.VectorNormalize(dir); bolt = GameUtil.G_Spawn(); bolt.svflags = Defines.SVF_DEADMONSTER; // yes, I know it looks weird that projectiles are deadmonsters // what this means is that when prediction is used against the object // (blaster/hyperblaster shots), the player won't be solid clipped // against // the object. Right now trying to run into a firing hyperblaster // is very jerky since you are predicted 'against' the shots. Math3D.VectorCopy(start, bolt.s.origin); Math3D.VectorCopy(start, bolt.s.old_origin); Math3D.vectoangles(dir, bolt.s.angles); Math3D.VectorScale(dir, speed, bolt.velocity); bolt.movetype = Defines.MOVETYPE_FLYMISSILE; bolt.clipmask = Defines.MASK_SHOT; bolt.solid = Defines.SOLID_BBOX; bolt.s.effects |= effect; Math3D.VectorClear(bolt.mins); Math3D.VectorClear(bolt.maxs); bolt.s.modelindex = GameBase.gi .modelindex("models/objects/laser/tris.md2"); bolt.s.sound = GameBase.gi.soundindex("misc/lasfly.wav"); bolt.owner = self; bolt.touch = GameWeapon.blaster_touch; bolt.nextthink = GameBase.level.time + 2; bolt.think = GameUtil.G_FreeEdictA; bolt.dmg = damage; bolt.classname = "bolt"; if (hyper) bolt.spawnflags = 1; GameBase.gi.linkentity(bolt); if (self.client != null) GameWeapon.check_dodge(self, bolt.s.origin, dir, speed); tr = GameBase.gi.trace(self.s.origin, null, null, bolt.s.origin, bolt, Defines.MASK_SHOT); if (tr.fraction < 1.0) { Math3D.VectorMA(bolt.s.origin, -10, dir, bolt.s.origin); bolt.touch.touch(bolt, tr.ent, GameBase.dummyplane, null); } } /* * ================= fire_grenade ================= */ public static void fire_grenade(edict_t self, float[] start, float[] aimdir, int damage, int speed, float timer, float damage_radius) { edict_t grenade; float[] dir = { 0, 0, 0 }; float[] forward = { 0, 0, 0 }, right = { 0, 0, 0 }, up = { 0, 0, 0 }; Math3D.vectoangles(aimdir, dir); Math3D.AngleVectors(dir, forward, right, up); grenade = GameUtil.G_Spawn(); Math3D.VectorCopy(start, grenade.s.origin); Math3D.VectorScale(aimdir, speed, grenade.velocity); Math3D.VectorMA(grenade.velocity, 200f + Lib.crandom() * 10.0f, up, grenade.velocity); Math3D.VectorMA(grenade.velocity, Lib.crandom() * 10.0f, right, grenade.velocity); Math3D.VectorSet(grenade.avelocity, 300, 300, 300); grenade.movetype = Defines.MOVETYPE_BOUNCE; grenade.clipmask = Defines.MASK_SHOT; grenade.solid = Defines.SOLID_BBOX; grenade.s.effects |= Defines.EF_GRENADE; Math3D.VectorClear(grenade.mins); Math3D.VectorClear(grenade.maxs); grenade.s.modelindex = GameBase.gi .modelindex("models/objects/grenade/tris.md2"); grenade.owner = self; grenade.touch = GameWeapon.Grenade_Touch; grenade.nextthink = GameBase.level.time + timer; grenade.think = GameWeapon.Grenade_Explode; grenade.dmg = damage; grenade.dmg_radius = damage_radius; grenade.classname = "grenade"; GameBase.gi.linkentity(grenade); } public static void fire_grenade2(edict_t self, float[] start, float[] aimdir, int damage, int speed, float timer, float damage_radius, boolean held) { edict_t grenade; float[] dir = { 0, 0, 0 }; float[] forward = { 0, 0, 0 }, right = { 0, 0, 0 }, up = { 0, 0, 0 }; Math3D.vectoangles(aimdir, dir); Math3D.AngleVectors(dir, forward, right, up); grenade = GameUtil.G_Spawn(); Math3D.VectorCopy(start, grenade.s.origin); Math3D.VectorScale(aimdir, speed, grenade.velocity); Math3D.VectorMA(grenade.velocity, 200f + Lib.crandom() * 10.0f, up, grenade.velocity); Math3D.VectorMA(grenade.velocity, Lib.crandom() * 10.0f, right, grenade.velocity); Math3D.VectorSet(grenade.avelocity, 300f, 300f, 300f); grenade.movetype = Defines.MOVETYPE_BOUNCE; grenade.clipmask = Defines.MASK_SHOT; grenade.solid = Defines.SOLID_BBOX; grenade.s.effects |= Defines.EF_GRENADE; Math3D.VectorClear(grenade.mins); Math3D.VectorClear(grenade.maxs); grenade.s.modelindex = GameBase.gi .modelindex("models/objects/grenade2/tris.md2"); grenade.owner = self; grenade.touch = GameWeapon.Grenade_Touch; grenade.nextthink = GameBase.level.time + timer; grenade.think = GameWeapon.Grenade_Explode; grenade.dmg = damage; grenade.dmg_radius = damage_radius; grenade.classname = "hgrenade"; if (held) grenade.spawnflags = 3; else grenade.spawnflags = 1; grenade.s.sound = GameBase.gi.soundindex("weapons/hgrenc1b.wav"); if (timer <= 0.0) GameWeapon.Grenade_Explode.think(grenade); else { GameBase.gi.sound(self, Defines.CHAN_WEAPON, GameBase.gi .soundindex("weapons/hgrent1a.wav"), 1, Defines.ATTN_NORM, 0); GameBase.gi.linkentity(grenade); } } public static void fire_rocket(edict_t self, float[] start, float[] dir, int damage, int speed, float damage_radius, int radius_damage) { edict_t rocket; rocket = GameUtil.G_Spawn(); Math3D.VectorCopy(start, rocket.s.origin); Math3D.VectorCopy(dir, rocket.movedir); Math3D.vectoangles(dir, rocket.s.angles); Math3D.VectorScale(dir, speed, rocket.velocity); rocket.movetype = Defines.MOVETYPE_FLYMISSILE; rocket.clipmask = Defines.MASK_SHOT; rocket.solid = Defines.SOLID_BBOX; rocket.s.effects |= Defines.EF_ROCKET; Math3D.VectorClear(rocket.mins); Math3D.VectorClear(rocket.maxs); rocket.s.modelindex = GameBase.gi .modelindex("models/objects/rocket/tris.md2"); rocket.owner = self; rocket.touch = GameWeapon.rocket_touch; rocket.nextthink = GameBase.level.time + 8000 / speed; rocket.think = GameUtil.G_FreeEdictA; rocket.dmg = damage; rocket.radius_dmg = radius_damage; rocket.dmg_radius = damage_radius; rocket.s.sound = GameBase.gi.soundindex("weapons/rockfly.wav"); rocket.classname = "rocket"; if (self.client != null) GameWeapon.check_dodge(self, rocket.s.origin, dir, speed); GameBase.gi.linkentity(rocket); } /* * ================= fire_rail ================= */ public static void fire_rail(edict_t self, float[] start, float[] aimdir, int damage, int kick) { float[] from = { 0, 0, 0 }; float[] end = { 0, 0, 0 }; trace_t tr = null; edict_t ignore; int mask; boolean water; Math3D.VectorMA(start, 8192f, aimdir, end); Math3D.VectorCopy(start, from); ignore = self; water = false; mask = Defines.MASK_SHOT | Defines.CONTENTS_SLIME | Defines.CONTENTS_LAVA; while (ignore != null) { tr = GameBase.gi.trace(from, null, null, end, ignore, mask); if ((tr.contents & (Defines.CONTENTS_SLIME | Defines.CONTENTS_LAVA)) != 0) { mask &= ~(Defines.CONTENTS_SLIME | Defines.CONTENTS_LAVA); water = true; } else { //ZOID--added so rail goes through SOLID_BBOX entities (gibs, // etc) if ((tr.ent.svflags & Defines.SVF_MONSTER) != 0 || (tr.ent.client != null) || (tr.ent.solid == Defines.SOLID_BBOX)) ignore = tr.ent; else ignore = null; if ((tr.ent != self) && (tr.ent.takedamage != 0)) GameUtil.T_Damage(tr.ent, self, self, aimdir, tr.endpos, tr.plane.normal, damage, kick, 0, Defines.MOD_RAILGUN); } Math3D.VectorCopy(tr.endpos, from); } // send gun puff / flash GameBase.gi.WriteByte(Defines.svc_temp_entity); GameBase.gi.WriteByte(Defines.TE_RAILTRAIL); GameBase.gi.WritePosition(start); GameBase.gi.WritePosition(tr.endpos); GameBase.gi.multicast(self.s.origin, Defines.MULTICAST_PHS); // gi.multicast (start, MULTICAST_PHS); if (water) { GameBase.gi.WriteByte(Defines.svc_temp_entity); GameBase.gi.WriteByte(Defines.TE_RAILTRAIL); GameBase.gi.WritePosition(start); GameBase.gi.WritePosition(tr.endpos); GameBase.gi.multicast(tr.endpos, Defines.MULTICAST_PHS); } if (self.client != null) GameWeapon.PlayerNoise(self, tr.endpos, Defines.PNOISE_IMPACT); } public static void fire_bfg(edict_t self, float[] start, float[] dir, int damage, int speed, float damage_radius) { edict_t bfg; bfg = GameUtil.G_Spawn(); Math3D.VectorCopy(start, bfg.s.origin); Math3D.VectorCopy(dir, bfg.movedir); Math3D.vectoangles(dir, bfg.s.angles); Math3D.VectorScale(dir, speed, bfg.velocity); bfg.movetype = Defines.MOVETYPE_FLYMISSILE; bfg.clipmask = Defines.MASK_SHOT; bfg.solid = Defines.SOLID_BBOX; bfg.s.effects |= Defines.EF_BFG | Defines.EF_ANIM_ALLFAST; Math3D.VectorClear(bfg.mins); Math3D.VectorClear(bfg.maxs); bfg.s.modelindex = GameBase.gi.modelindex("sprites/s_bfg1.sp2"); bfg.owner = self; bfg.touch = GameWeapon.bfg_touch; bfg.nextthink = GameBase.level.time + 8000 / speed; bfg.think = GameUtil.G_FreeEdictA; bfg.radius_dmg = damage; bfg.dmg_radius = damage_radius; bfg.classname = "bfg blast"; bfg.s.sound = GameBase.gi.soundindex("weapons/bfg__l1a.wav"); bfg.think = GameWeapon.bfg_think; bfg.nextthink = GameBase.level.time + Defines.FRAMETIME; bfg.teammaster = bfg; bfg.teamchain = null; if (self.client != null) GameWeapon.check_dodge(self, bfg.s.origin, dir, speed); GameBase.gi.linkentity(bfg); } }