mirror of https://github.com/ZDoom/gzdoom.git
662 lines
17 KiB
C++
662 lines
17 KiB
C++
/*
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** p_effect.cpp
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** Particle effects
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**
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**---------------------------------------------------------------------------
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** Copyright 1998-2006 Randy Heit
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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** If particles used real sprites instead of blocks, they could be much
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** more useful.
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*/
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#include "doomtype.h"
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#include "doomstat.h"
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#include "c_cvars.h"
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#include "actor.h"
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#include "p_effect.h"
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#include "p_local.h"
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#include "g_level.h"
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#include "v_video.h"
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#include "m_random.h"
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#include "r_defs.h"
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#include "r_things.h"
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#include "s_sound.h"
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#include "templates.h"
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#include "gi.h"
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#include "v_palette.h"
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#include "colormatcher.h"
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CVAR (Int, cl_rockettrails, 1, CVAR_ARCHIVE);
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CVAR (Bool, r_rail_smartspiral, 0, CVAR_ARCHIVE);
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CVAR (Int, r_rail_spiralsparsity, 1, CVAR_ARCHIVE);
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CVAR (Int, r_rail_trailsparsity, 1, CVAR_ARCHIVE);
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#define FADEFROMTTL(a) (255/(a))
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static int grey1, grey2, grey3, grey4, red, green, blue, yellow, black,
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red1, green1, blue1, yellow1, purple, purple1, white,
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rblue1, rblue2, rblue3, rblue4, orange, yorange, dred, grey5,
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maroon1, maroon2, blood1, blood2;
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static const struct ColorList {
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int *color;
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BYTE r, g, b;
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} Colors[] = {
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{&grey1, 85, 85, 85 },
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{&grey2, 171, 171, 171},
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{&grey3, 50, 50, 50 },
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{&grey4, 210, 210, 210},
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{&grey5, 128, 128, 128},
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{&red, 255, 0, 0 },
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{&green, 0, 200, 0 },
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{&blue, 0, 0, 255},
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{&yellow, 255, 255, 0 },
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{&black, 0, 0, 0 },
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{&red1, 255, 127, 127},
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{&green1, 127, 255, 127},
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{&blue1, 127, 127, 255},
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{&yellow1, 255, 255, 180},
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{&purple, 120, 0, 160},
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{&purple1, 200, 30, 255},
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{&white, 255, 255, 255},
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{&rblue1, 81, 81, 255},
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{&rblue2, 0, 0, 227},
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{&rblue3, 0, 0, 130},
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{&rblue4, 0, 0, 80 },
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{&orange, 255, 120, 0 },
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{&yorange, 255, 170, 0 },
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{&dred, 80, 0, 0 },
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{&maroon1, 154, 49, 49 },
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{&maroon2, 125, 24, 24 },
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{NULL}
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};
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void P_InitEffects ()
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{
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const struct ColorList *color = Colors;
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while (color->color)
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{
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*(color->color) = ColorMatcher.Pick (color->r, color->g, color->b);
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color++;
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}
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int kind = gameinfo.defaultbloodparticlecolor;
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blood1 = ColorMatcher.Pick(RPART(kind), GPART(kind), BPART(kind));
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blood2 = ColorMatcher.Pick(RPART(kind)/3, GPART(kind)/3, BPART(kind)/3);
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}
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void P_ThinkParticles ()
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{
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int i;
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particle_t *particle, *prev;
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i = ActiveParticles;
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prev = NULL;
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while (i != NO_PARTICLE)
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{
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BYTE oldtrans;
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particle = Particles + i;
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i = particle->tnext;
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oldtrans = particle->trans;
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particle->trans -= particle->fade;
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if (oldtrans < particle->trans || --particle->ttl == 0)
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{ // The particle has expired, so free it
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memset (particle, 0, sizeof(particle_t));
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if (prev)
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prev->tnext = i;
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else
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ActiveParticles = i;
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particle->tnext = InactiveParticles;
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InactiveParticles = (int)(particle - Particles);
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continue;
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}
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particle->x += particle->velx;
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particle->y += particle->vely;
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particle->z += particle->velz;
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particle->velx += particle->accx;
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particle->vely += particle->accy;
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particle->velz += particle->accz;
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prev = particle;
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}
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}
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//
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// P_RunEffects
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//
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// Run effects on all actors in the world
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//
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void P_RunEffects ()
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{
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if (players[consoleplayer].camera == NULL) return;
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int pnum = int(players[consoleplayer].camera->Sector - sectors) * numsectors;
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AActor *actor;
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TThinkerIterator<AActor> iterator;
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while ( (actor = iterator.Next ()) )
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{
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if (actor->effects)
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{
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// Only run the effect if the actor is potentially visible
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int rnum = pnum + int(actor->Sector - sectors);
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if (rejectmatrix == NULL || !(rejectmatrix[rnum>>3] & (1 << (rnum & 7))))
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P_RunEffect (actor, actor->effects);
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}
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}
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}
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//
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// AddParticle
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//
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// Creates a particle with "jitter"
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//
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particle_t *JitterParticle (int ttl)
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{
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particle_t *particle = NewParticle ();
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if (particle) {
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fixed_t *val = &particle->velx;
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int i;
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// Set initial velocities
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for (i = 3; i; i--, val++)
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*val = (FRACUNIT/4096) * (M_Random () - 128);
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// Set initial accelerations
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for (i = 3; i; i--, val++)
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*val = (FRACUNIT/16384) * (M_Random () - 128);
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particle->trans = 255; // fully opaque
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particle->ttl = ttl;
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particle->fade = FADEFROMTTL(ttl);
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}
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return particle;
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}
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static void MakeFountain (AActor *actor, int color1, int color2)
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{
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particle_t *particle;
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if (!(level.time & 1))
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return;
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particle = JitterParticle (51);
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if (particle)
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{
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angle_t an = M_Random()<<(24-ANGLETOFINESHIFT);
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fixed_t out = FixedMul (actor->radius, M_Random()<<8);
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particle->x = actor->x + FixedMul (out, finecosine[an]);
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particle->y = actor->y + FixedMul (out, finesine[an]);
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particle->z = actor->z + actor->height + FRACUNIT;
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if (out < actor->radius/8)
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particle->velz += FRACUNIT*10/3;
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else
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particle->velz += FRACUNIT*3;
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particle->accz -= FRACUNIT/11;
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if (M_Random() < 30) {
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particle->size = 4;
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particle->color = color2;
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} else {
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particle->size = 6;
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particle->color = color1;
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}
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}
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}
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void P_RunEffect (AActor *actor, int effects)
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{
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angle_t moveangle;
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// 512 is the limit below which R_PointToAngle2 does no longer returns usable values.
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if (abs(actor->velx) > 512 || abs(actor->vely) > 512)
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{
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moveangle = R_PointToAngle2(0,0,actor->velx,actor->vely);
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}
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else
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{
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moveangle = actor->angle;
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}
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particle_t *particle;
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int i;
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if ((effects & FX_ROCKET) && (cl_rockettrails & 1))
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{
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// Rocket trail
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fixed_t backx = actor->x - FixedMul (finecosine[(moveangle)>>ANGLETOFINESHIFT], actor->radius*2);
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fixed_t backy = actor->y - FixedMul (finesine[(moveangle)>>ANGLETOFINESHIFT], actor->radius*2);
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fixed_t backz = actor->z - (actor->height>>3) * (actor->velz>>16) + (2*actor->height)/3;
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angle_t an = (moveangle + ANG90) >> ANGLETOFINESHIFT;
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int speed;
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particle = JitterParticle (3 + (M_Random() & 31));
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if (particle) {
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fixed_t pathdist = M_Random()<<8;
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particle->x = backx - FixedMul(actor->velx, pathdist);
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particle->y = backy - FixedMul(actor->vely, pathdist);
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particle->z = backz - FixedMul(actor->velz, pathdist);
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speed = (M_Random () - 128) * (FRACUNIT/200);
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particle->velx += FixedMul (speed, finecosine[an]);
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particle->vely += FixedMul (speed, finesine[an]);
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particle->velz -= FRACUNIT/36;
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particle->accz -= FRACUNIT/20;
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particle->color = yellow;
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particle->size = 2;
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}
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for (i = 6; i; i--) {
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particle_t *particle = JitterParticle (3 + (M_Random() & 31));
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if (particle) {
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fixed_t pathdist = M_Random()<<8;
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particle->x = backx - FixedMul(actor->velx, pathdist);
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particle->y = backy - FixedMul(actor->vely, pathdist);
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particle->z = backz - FixedMul(actor->velz, pathdist) + (M_Random() << 10);
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speed = (M_Random () - 128) * (FRACUNIT/200);
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particle->velx += FixedMul (speed, finecosine[an]);
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particle->vely += FixedMul (speed, finesine[an]);
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particle->velz += FRACUNIT/80;
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particle->accz += FRACUNIT/40;
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if (M_Random () & 7)
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particle->color = grey2;
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else
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particle->color = grey1;
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particle->size = 3;
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} else
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break;
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}
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}
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if ((effects & FX_GRENADE) && (cl_rockettrails & 1))
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{
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// Grenade trail
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P_DrawSplash2 (6,
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actor->x - FixedMul (finecosine[(moveangle)>>ANGLETOFINESHIFT], actor->radius*2),
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actor->y - FixedMul (finesine[(moveangle)>>ANGLETOFINESHIFT], actor->radius*2),
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actor->z - (actor->height>>3) * (actor->velz>>16) + (2*actor->height)/3,
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moveangle + ANG180, 2, 2);
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}
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if (effects & FX_FOUNTAINMASK)
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{
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// Particle fountain
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static const int *fountainColors[16] =
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{ &black, &black,
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&red, &red1,
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&green, &green1,
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&blue, &blue1,
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&yellow, &yellow1,
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&purple, &purple1,
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&black, &grey3,
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&grey4, &white
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};
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int color = (effects & FX_FOUNTAINMASK) >> 15;
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MakeFountain (actor, *fountainColors[color], *fountainColors[color+1]);
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}
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if (effects & FX_RESPAWNINVUL)
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{
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// Respawn protection
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static const int *protectColors[2] = { &yellow1, &white };
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for (i = 3; i > 0; i--)
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{
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particle = JitterParticle (16);
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if (particle != NULL)
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{
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angle_t ang = M_Random () << (32-ANGLETOFINESHIFT-8);
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particle->x = actor->x + FixedMul (actor->radius, finecosine[ang]);
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particle->y = actor->y + FixedMul (actor->radius, finesine[ang]);
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particle->color = *protectColors[M_Random() & 1];
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particle->z = actor->z;
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particle->velz = FRACUNIT;
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particle->accz = M_Random () << 7;
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particle->size = 1;
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if (M_Random () < 128)
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{ // make particle fall from top of actor
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particle->z += actor->height;
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particle->velz = -particle->velz;
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particle->accz = -particle->accz;
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}
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}
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}
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}
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}
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void P_DrawSplash (int count, fixed_t x, fixed_t y, fixed_t z, angle_t angle, int kind)
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{
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int color1, color2;
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switch (kind)
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{
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case 1: // Spark
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color1 = orange;
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color2 = yorange;
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break;
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default:
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return;
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}
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for (; count; count--)
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{
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particle_t *p = JitterParticle (10);
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angle_t an;
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if (!p)
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break;
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p->size = 2;
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p->color = M_Random() & 0x80 ? color1 : color2;
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p->velz -= M_Random () * 512;
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p->accz -= FRACUNIT/8;
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p->accx += (M_Random () - 128) * 8;
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p->accy += (M_Random () - 128) * 8;
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p->z = z - M_Random () * 1024;
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an = (angle + (M_Random() << 21)) >> ANGLETOFINESHIFT;
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p->x = x + (M_Random () & 15)*finecosine[an];
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p->y = y + (M_Random () & 15)*finesine[an];
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}
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}
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void P_DrawSplash2 (int count, fixed_t x, fixed_t y, fixed_t z, angle_t angle, int updown, int kind)
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{
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int color1, color2, zvel, zspread, zadd;
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switch (kind)
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{
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case 0: // Blood
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color1 = blood1;
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color2 = blood2;
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break;
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case 1: // Gunshot
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color1 = grey3;
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color2 = grey5;
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break;
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case 2: // Smoke
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color1 = grey3;
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color2 = grey1;
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break;
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default: // colorized blood
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color1 = ColorMatcher.Pick(RPART(kind), GPART(kind), BPART(kind));
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color2 = ColorMatcher.Pick(RPART(kind)>>1, GPART(kind)>>1, BPART(kind)>>1);
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break;
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}
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zvel = -128;
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zspread = updown ? -6000 : 6000;
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zadd = (updown == 2) ? -128 : 0;
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for (; count; count--)
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{
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particle_t *p = NewParticle ();
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angle_t an;
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if (!p)
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break;
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p->ttl = 12;
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p->fade = FADEFROMTTL(12);
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p->trans = 255;
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p->size = 4;
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p->color = M_Random() & 0x80 ? color1 : color2;
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p->velz = M_Random () * zvel;
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p->accz = -FRACUNIT/22;
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if (kind) {
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an = (angle + ((M_Random() - 128) << 23)) >> ANGLETOFINESHIFT;
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p->velx = (M_Random () * finecosine[an]) >> 11;
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p->vely = (M_Random () * finesine[an]) >> 11;
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p->accx = p->velx >> 4;
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p->accy = p->vely >> 4;
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}
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p->z = z + (M_Random () + zadd - 128) * zspread;
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an = (angle + ((M_Random() - 128) << 22)) >> ANGLETOFINESHIFT;
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p->x = x + ((M_Random () & 31)-15)*finecosine[an];
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p->y = y + ((M_Random () & 31)-15)*finesine[an];
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}
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}
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void P_DrawRailTrail (AActor *source, const FVector3 &start, const FVector3 &end, int color1, int color2, float maxdiff, bool silent)
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{
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double length, lengthsquared;
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int steps, i;
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FAngle deg;
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FVector3 step, dir, pos, extend;
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dir = end - start;
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lengthsquared = dir | dir;
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length = sqrt(lengthsquared);
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steps = int(length / 3);
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if (steps)
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{
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if (!silent)
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{
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FSoundID sound;
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// Allow other sounds than 'weapons/railgf'!
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if (!source->player) sound = source->AttackSound;
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else if (source->player->ReadyWeapon) sound = source->player->ReadyWeapon->AttackSound;
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else sound = 0;
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if (!sound) sound = "weapons/railgf";
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// The railgun's sound is special. It gets played from the
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// point on the slug's trail that is closest to the hearing player.
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AActor *mo = players[consoleplayer].camera;
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FVector3 point;
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double r;
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float dirz;
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if (abs(mo->x - FLOAT2FIXED(start.X)) < 20 * FRACUNIT
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&& (mo->y - FLOAT2FIXED(start.Y)) < 20 * FRACUNIT)
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{ // This player (probably) fired the railgun
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S_Sound (mo, CHAN_WEAPON, sound, 1, ATTN_NORM);
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}
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else
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{
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// Only consider sound in 2D (for now, anyway)
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// [BB] You have to devide by lengthsquared here, not multiply with it.
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r = ((start.Y - FIXED2FLOAT(mo->y)) * (-dir.Y) - (start.X - FIXED2FLOAT(mo->x)) * (dir.X)) / lengthsquared;
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r = clamp<double>(r, 0., 1.);
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dirz = dir.Z;
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dir.Z = 0;
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point = start + r * dir;
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dir.Z = dirz;
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S_Sound (FLOAT2FIXED(point.X), FLOAT2FIXED(point.Y), viewz,
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CHAN_WEAPON, sound, 1, ATTN_NORM);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// line is 0 length, so nothing to do
|
|
return;
|
|
}
|
|
|
|
dir /= length;
|
|
|
|
//Calculate PerpendicularVector (extend, dir):
|
|
double minelem = 1;
|
|
int epos;
|
|
for (epos = 0, i = 0; i < 3; ++i)
|
|
{
|
|
if (fabs(dir[i]) < minelem)
|
|
{
|
|
epos = i;
|
|
minelem = fabs(dir[i]);
|
|
}
|
|
}
|
|
FVector3 tempvec(0,0,0);
|
|
tempvec[epos] = 1;
|
|
extend = tempvec - (dir | tempvec) * dir;
|
|
//
|
|
|
|
extend *= 3;
|
|
step = dir * 3;
|
|
|
|
// Create the outer spiral.
|
|
if (color1 != -1 && (!r_rail_smartspiral || color2 == -1) && r_rail_spiralsparsity > 0)
|
|
{
|
|
FVector3 spiral_step = step * r_rail_spiralsparsity;
|
|
int spiral_steps = steps * r_rail_spiralsparsity;
|
|
|
|
color1 = color1 == 0 ? -1 : ColorMatcher.Pick(RPART(color1), GPART(color1), BPART(color1));
|
|
pos = start;
|
|
deg = FAngle(270);
|
|
for (i = spiral_steps; i; i--)
|
|
{
|
|
particle_t *p = NewParticle ();
|
|
FVector3 tempvec;
|
|
|
|
if (!p)
|
|
return;
|
|
|
|
p->trans = 255;
|
|
p->ttl = 35;
|
|
p->fade = FADEFROMTTL(35);
|
|
p->size = 3;
|
|
|
|
tempvec = FMatrix3x3(dir, deg) * extend;
|
|
p->velx = FLOAT2FIXED(tempvec.X)>>4;
|
|
p->vely = FLOAT2FIXED(tempvec.Y)>>4;
|
|
p->velz = FLOAT2FIXED(tempvec.Z)>>4;
|
|
tempvec += pos;
|
|
p->x = FLOAT2FIXED(tempvec.X);
|
|
p->y = FLOAT2FIXED(tempvec.Y);
|
|
p->z = FLOAT2FIXED(tempvec.Z);
|
|
pos += spiral_step;
|
|
deg += FAngle(r_rail_spiralsparsity * 14);
|
|
|
|
if (color1 == -1)
|
|
{
|
|
int rand = M_Random();
|
|
|
|
if (rand < 155)
|
|
p->color = rblue2;
|
|
else if (rand < 188)
|
|
p->color = rblue1;
|
|
else if (rand < 222)
|
|
p->color = rblue3;
|
|
else
|
|
p->color = rblue4;
|
|
}
|
|
else
|
|
{
|
|
p->color = color1;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Create the inner trail.
|
|
if (color2 != -1 && r_rail_trailsparsity > 0)
|
|
{
|
|
FVector3 trail_step = step * r_rail_trailsparsity;
|
|
int trail_steps = steps * r_rail_trailsparsity;
|
|
|
|
color2 = color2 == 0 ? -1 : ColorMatcher.Pick(RPART(color2), GPART(color2), BPART(color2));
|
|
FVector3 diff(0, 0, 0);
|
|
|
|
pos = start;
|
|
for (i = trail_steps; i; i--)
|
|
{
|
|
particle_t *p = JitterParticle (33);
|
|
|
|
if (!p)
|
|
return;
|
|
|
|
if (maxdiff > 0)
|
|
{
|
|
int rnd = M_Random ();
|
|
if (rnd & 1)
|
|
diff.X = clamp<float> (diff.X + ((rnd & 8) ? 1 : -1), -maxdiff, maxdiff);
|
|
if (rnd & 2)
|
|
diff.Y = clamp<float> (diff.Y + ((rnd & 16) ? 1 : -1), -maxdiff, maxdiff);
|
|
if (rnd & 4)
|
|
diff.Z = clamp<float> (diff.Z + ((rnd & 32) ? 1 : -1), -maxdiff, maxdiff);
|
|
}
|
|
|
|
FVector3 postmp = pos + diff;
|
|
|
|
p->size = 2;
|
|
p->x = FLOAT2FIXED(postmp.X);
|
|
p->y = FLOAT2FIXED(postmp.Y);
|
|
p->z = FLOAT2FIXED(postmp.Z);
|
|
if (color1 != -1)
|
|
p->accz -= FRACUNIT/4096;
|
|
pos += trail_step;
|
|
|
|
if (color2 == -1)
|
|
{
|
|
int rand = M_Random();
|
|
|
|
if (rand < 85)
|
|
p->color = grey4;
|
|
else if (rand < 170)
|
|
p->color = grey2;
|
|
else
|
|
p->color = grey1;
|
|
}
|
|
else
|
|
{
|
|
p->color = color2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void P_DisconnectEffect (AActor *actor)
|
|
{
|
|
int i;
|
|
|
|
if (actor == NULL)
|
|
return;
|
|
|
|
for (i = 64; i; i--)
|
|
{
|
|
particle_t *p = JitterParticle (TICRATE*2);
|
|
|
|
if (!p)
|
|
break;
|
|
|
|
p->x = actor->x + ((M_Random()-128)<<9) * (actor->radius>>FRACBITS);
|
|
p->y = actor->y + ((M_Random()-128)<<9) * (actor->radius>>FRACBITS);
|
|
p->z = actor->z + (M_Random()<<8) * (actor->height>>FRACBITS);
|
|
p->accz -= FRACUNIT/4096;
|
|
p->color = M_Random() < 128 ? maroon1 : maroon2;
|
|
p->size = 4;
|
|
}
|
|
}
|