codemp/cgame/cg_effects.c

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// Copyright (C) 1999-2000 Id Software, Inc.
//
// cg_effects.c -- these functions generate localentities, usually as a result
// of event processing

#include "cg_local.h"

/*
==================
CG_BubbleTrail

Bullets shot underwater
==================
*/
void CG_BubbleTrail( vec3_t start, vec3_t end, float spacing ) {
        vec3_t          move;
        vec3_t          vec;
        float           len;
        int                     i;

        if ( cg_noProjectileTrail.integer ) {
                return;
        }

        VectorCopy (start, move);
        VectorSubtract (end, start, vec);
        len = VectorNormalize (vec);

        // advance a random amount first
        i = rand() % (int)spacing;
        VectorMA( move, i, vec, move );

        VectorScale (vec, spacing, vec);

        for ( ; i < len; i += spacing ) {
                localEntity_t   *le;
                refEntity_t             *re;

                le = CG_AllocLocalEntity();
                le->leFlags = LEF_PUFF_DONT_SCALE;
                le->leType = LE_MOVE_SCALE_FADE;
                le->startTime = cg.time;
                le->endTime = cg.time + 1000 + random() * 250;
                le->lifeRate = 1.0 / ( le->endTime - le->startTime );

                re = &le->refEntity;
                re->shaderTime = cg.time / 1000.0f;

                re->reType = RT_SPRITE;
                re->rotation = 0;
                re->radius = 3;
                re->customShader = 0;//cgs.media.waterBubbleShader;
                re->shaderRGBA[0] = 0xff;
                re->shaderRGBA[1] = 0xff;
                re->shaderRGBA[2] = 0xff;
                re->shaderRGBA[3] = 0xff;

                le->color[3] = 1.0;

                le->pos.trType = TR_LINEAR;
                le->pos.trTime = cg.time;
                VectorCopy( move, le->pos.trBase );
                le->pos.trDelta[0] = crandom()*5;
                le->pos.trDelta[1] = crandom()*5;
                le->pos.trDelta[2] = crandom()*5 + 6;

                VectorAdd (move, vec, move);
        }
}

/*
=====================
CG_SmokePuff

Adds a smoke puff or blood trail localEntity.
=====================
*/
localEntity_t *CG_SmokePuff( const vec3_t p, const vec3_t vel, 
                                   float radius,
                                   float r, float g, float b, float a,
                                   float duration,
                                   int startTime,
                                   int fadeInTime,
                                   int leFlags,
                                   qhandle_t hShader ) {
        static int      seed = 0x92;
        localEntity_t   *le;
        refEntity_t             *re;
//      int fadeInTime = startTime + duration / 2;

        le = CG_AllocLocalEntity();
        le->leFlags = leFlags;
        le->radius = radius;

        re = &le->refEntity;
        re->rotation = Q_random( &seed ) * 360;
        re->radius = radius;
        re->shaderTime = startTime / 1000.0f;

        le->leType = LE_MOVE_SCALE_FADE;
        le->startTime = startTime;
        le->fadeInTime = fadeInTime;
        le->endTime = startTime + duration;
        if ( fadeInTime > startTime ) {
                le->lifeRate = 1.0 / ( le->endTime - le->fadeInTime );
        }
        else {
                le->lifeRate = 1.0 / ( le->endTime - le->startTime );
        }
        le->color[0] = r;
        le->color[1] = g; 
        le->color[2] = b;
        le->color[3] = a;


        le->pos.trType = TR_LINEAR;
        le->pos.trTime = startTime;
        VectorCopy( vel, le->pos.trDelta );
        VectorCopy( p, le->pos.trBase );

        VectorCopy( p, re->origin );
        re->customShader = hShader;

        re->shaderRGBA[0] = le->color[0] * 0xff;
        re->shaderRGBA[1] = le->color[1] * 0xff;
        re->shaderRGBA[2] = le->color[2] * 0xff;
        re->shaderRGBA[3] = 0xff;

        re->reType = RT_SPRITE;
        re->radius = le->radius;

        return le;
}

int CGDEBUG_SaberColor( int saberColor )
{
        switch( (int)(saberColor) )
        {
                case SABER_RED:
                        return 0x000000ff;
                        break;
                case SABER_ORANGE:
                        return 0x000088ff;
                        break;
                case SABER_YELLOW:
                        return 0x0000ffff;
                        break;
                case SABER_GREEN:
                        return 0x0000ff00;
                        break;
                case SABER_BLUE:
                        return 0x00ff0000;
                        break;
                case SABER_PURPLE:
                        return 0x00ff00ff;
                        break;
                default:
                        return saberColor;
                        break;
        }
}

void CG_TestLine( vec3_t start, vec3_t end, int time, unsigned int color, int radius) {
        localEntity_t   *le;
        refEntity_t             *re;

        le = CG_AllocLocalEntity();
        le->leType = LE_LINE;
        le->startTime = cg.time;
        le->endTime = cg.time + time;
        le->lifeRate = 1.0 / ( le->endTime - le->startTime );

        re = &le->refEntity;
        VectorCopy( start, re->origin );
        VectorCopy( end, re->oldorigin);
        re->shaderTime = cg.time / 1000.0f;

        re->reType = RT_LINE;
        re->radius = 0.5*radius;
        re->customShader = cgs.media.whiteShader; //trap_R_RegisterShaderNoMip("textures/colombia/canvas_doublesided");

        re->shaderTexCoord[0] = re->shaderTexCoord[1] = 1.0f;

        if (color==0)
        {
                re->shaderRGBA[0] = re->shaderRGBA[1] = re->shaderRGBA[2] = re->shaderRGBA[3] = 0xff;
        }
        else
        {
                color = CGDEBUG_SaberColor( color );
                re->shaderRGBA[0] = color & 0xff;
                color >>= 8;
                re->shaderRGBA[1] = color & 0xff;
                color >>= 8;
                re->shaderRGBA[2] = color & 0xff;
//              color >>= 8;
//              re->shaderRGBA[3] = color & 0xff;
                re->shaderRGBA[3] = 0xff;
        }

        le->color[3] = 1.0;

        //re->renderfx |= RF_DEPTHHACK;
}

/*
==================
CG_ThrowChunk
==================
*/
void CG_ThrowChunk( vec3_t origin, vec3_t velocity, qhandle_t hModel, int optionalSound, int startalpha ) {
        localEntity_t   *le;
        refEntity_t             *re;

        le = CG_AllocLocalEntity();
        re = &le->refEntity;

        le->leType = LE_FRAGMENT;
        le->startTime = cg.time;
        le->endTime = le->startTime + 5000 + random() * 3000;

        VectorCopy( origin, re->origin );
        AxisCopy( axisDefault, re->axis );
        re->hModel = hModel;

        le->pos.trType = TR_GRAVITY;
        le->angles.trType = TR_GRAVITY;
        VectorCopy( origin, le->pos.trBase );
        VectorCopy( velocity, le->pos.trDelta );
        VectorSet(le->angles.trBase, 20, 20, 20);
        VectorCopy( velocity, le->angles.trDelta );
        le->pos.trTime = cg.time;
        le->angles.trTime = cg.time;

        le->leFlags = LEF_TUMBLE;

        le->angles.trBase[YAW] = 180;

        le->bounceFactor = 0.3f;
        le->bounceSound = optionalSound;

        le->forceAlpha = startalpha;
}

//----------------------------
//
// Breaking Glass Technology
//
//----------------------------

// Since we have shared verts when we tesselate the glass sheet, it helps to have a 
//      random offset table set up up front.

static float offX[20][20],
                        offZ[20][20];

#define FX_ALPHA_NONLINEAR      0x00000004
#define FX_APPLY_PHYSICS        0x02000000
#define FX_USE_ALPHA            0x08000000

static void CG_DoGlassQuad( vec3_t p[4], vec2_t uv[4], qboolean stick, int time, vec3_t dmgDir )
{
        float   bounce;
        vec3_t  rotDelta;
        vec3_t  vel, accel;
        vec3_t  rgb1;
        addpolyArgStruct_t apArgs;
        int             i, i_2;

        VectorSet( vel, crandom() * 12, crandom() * 12, -1 );

        if ( !stick )
        {
                // We aren't a motion delayed chunk, so let us move quickly
                VectorMA( vel, 0.3f, dmgDir, vel );
        }

        // Set up acceleration due to gravity, 800 is standard QuakeIII gravity, so let's use something close
        VectorSet( accel, 0.0f, 0.0f, -(600.0f + random() * 100.0f ) );

        // We are using an additive shader, so let's set the RGB low so we look more like transparent glass
//      VectorSet( rgb1, 0.1f, 0.1f, 0.1f );
        VectorSet( rgb1, 1.0f, 1.0f, 1.0f );

        // Being glass, we don't want to bounce much
        bounce = random() * 0.2f + 0.15f;

        // Set up our random rotate, we only do PITCH and YAW, not ROLL.  This is something like degrees per second
        VectorSet( rotDelta, crandom() * 40.0f, crandom() * 40.0f, 0.0f );

        //In an ideal world, this might actually work.
        /*
        CPoly *pol = FX_AddPoly(p, uv, 4,                       // verts, ST, vertCount
                        vel, accel,                             // motion
                        0.15f, 0.0f, 85.0f,             // alpha start, alpha end, alpha parm ( begin alpha fade when 85% of life is complete )
                        rgb1, rgb1, 0.0f,               // rgb start, rgb end, rgb parm ( not used )
                        rotDelta, bounce, time, // rotation amount, bounce, and time to delay motion for ( zero if no delay );
                        6000,                                   // life
                        cgi_R_RegisterShader( "gfx/misc/test_crackle" ), 
                        FX_APPLY_PHYSICS | FX_ALPHA_NONLINEAR | FX_USE_ALPHA );

        if ( random() > 0.95f && pol )
        {
                pol->AddFlags( FX_IMPACT_RUNS_FX | FX_KILL_ON_IMPACT );
                pol->SetImpactFxID( theFxScheduler.RegisterEffect( "glass_impact" ));
        }
        */

        //rww - this is dirty.

        i = 0;
        i_2 = 0;

        while (i < 4)
        {
                while (i_2 < 3)
                {
                        apArgs.p[i][i_2] = p[i][i_2];

                        i_2++;
                }

                i_2 = 0;
                i++;
        }

        i = 0;
        i_2 = 0;

        while (i < 4)
        {
                while (i_2 < 2)
                {
                        apArgs.ev[i][i_2] = uv[i][i_2];

                        i_2++;
                }

                i_2 = 0;
                i++;
        }

        apArgs.numVerts = 4;
        VectorCopy(vel, apArgs.vel);
        VectorCopy(accel, apArgs.accel);

        apArgs.alpha1 = 0.15f;
        apArgs.alpha2 = 0.0f;
        apArgs.alphaParm = 85.0f;

        VectorCopy(rgb1, apArgs.rgb1);
        VectorCopy(rgb1, apArgs.rgb2);

        apArgs.rgbParm = 0.0f;

        VectorCopy(rotDelta, apArgs.rotationDelta);

        apArgs.bounce = bounce;
        apArgs.motionDelay = time;
        apArgs.killTime = 6000;
        apArgs.shader = cgs.media.glassShardShader;
        apArgs.flags = (FX_APPLY_PHYSICS | FX_ALPHA_NONLINEAR | FX_USE_ALPHA);

        trap_FX_AddPoly(&apArgs);
}

static void CG_CalcBiLerp( vec3_t verts[4], vec3_t subVerts[4], vec2_t uv[4] )
{
        vec3_t  temp;

        // Nasty crap
        VectorScale( verts[0],  1.0f - uv[0][0],        subVerts[0] );
        VectorMA( subVerts[0],  uv[0][0],                       verts[1], subVerts[0] );
        VectorScale( subVerts[0], 1.0f - uv[0][1],      temp );
        VectorScale( verts[3],  1.0f - uv[0][0],        subVerts[0] );
        VectorMA( subVerts[0],  uv[0][0],                       verts[2], subVerts[0] );
        VectorMA( temp,                 uv[0][1],                       subVerts[0], subVerts[0] );

        VectorScale( verts[0],  1.0f - uv[1][0],        subVerts[1] );
        VectorMA( subVerts[1],  uv[1][0],                       verts[1], subVerts[1] );
        VectorScale( subVerts[1], 1.0f - uv[1][1],      temp );
        VectorScale( verts[3],  1.0f - uv[1][0],        subVerts[1] );
        VectorMA( subVerts[1],  uv[1][0],                       verts[2], subVerts[1] );
        VectorMA( temp,                 uv[1][1],                       subVerts[1], subVerts[1] );

        VectorScale( verts[0],  1.0f - uv[2][0],        subVerts[2] );
        VectorMA( subVerts[2],  uv[2][0],                       verts[1], subVerts[2] );
        VectorScale( subVerts[2], 1.0f - uv[2][1],              temp );
        VectorScale( verts[3],  1.0f - uv[2][0],        subVerts[2] );
        VectorMA( subVerts[2],  uv[2][0],                       verts[2], subVerts[2] );
        VectorMA( temp,                 uv[2][1],                       subVerts[2], subVerts[2] );

        VectorScale( verts[0],  1.0f - uv[3][0],        subVerts[3] );
        VectorMA( subVerts[3],  uv[3][0],                       verts[1], subVerts[3] );
        VectorScale( subVerts[3], 1.0f - uv[3][1],      temp );
        VectorScale( verts[3],  1.0f - uv[3][0],        subVerts[3] );
        VectorMA( subVerts[3],  uv[3][0],                       verts[2], subVerts[3] );
        VectorMA( temp,                 uv[3][1],                       subVerts[3], subVerts[3] );
}
// bilinear
//f(p',q') = (1 - y) × {[(1 - x) × f(p,q)] + [x × f(p,q+1)]} + y × {[(1 - x) × f(p+1,q)] + [x × f(p+1,q+1)]}. 


static void CG_CalcHeightWidth( vec3_t verts[4], float *height, float *width )
{
        vec3_t  dir1, dir2, cross;

        VectorSubtract( verts[3], verts[0], dir1 ); // v
        VectorSubtract( verts[1], verts[0], dir2 ); // p-a
        CrossProduct( dir1, dir2, cross );
        *width = VectorNormalize( cross ) / VectorNormalize( dir1 ); // v 
        VectorSubtract( verts[2], verts[0], dir2 ); // p-a
        CrossProduct( dir1, dir2, cross );
        *width += VectorNormalize( cross ) / VectorNormalize( dir1 ); // v 
        *width *= 0.5f;

        VectorSubtract( verts[1], verts[0], dir1 ); // v
        VectorSubtract( verts[2], verts[0], dir2 ); // p-a
        CrossProduct( dir1, dir2, cross );
        *height = VectorNormalize( cross ) / VectorNormalize( dir1 ); // v 
        VectorSubtract( verts[3], verts[0], dir2 ); // p-a
        CrossProduct( dir1, dir2, cross );
        *height += VectorNormalize( cross ) / VectorNormalize( dir1 ); // v 
        *height *= 0.5f;
}
//Consider a line in 3D with position vector "a" and direction vector "v" and 
// let "p" be the position vector of an arbitrary point in 3D
//dist = len( crossprod(p-a,v) ) / len(v); 

void CG_InitGlass( void )
{
        int i, t;

        // Build a table first, so that we can do a more unpredictable crack scheme
        //      do it once, up front to save a bit of time.
        for ( i = 0; i < 20; i++ )
        {
                for ( t = 0; t < 20; t++ )
                {
                        offX[t][i] = crandom() * 0.03f;
                        offZ[i][t] = crandom() * 0.03f;
                }
        }
}

void Vector2Set(vec2_t a,float b,float c)
{
        a[0] = b;
        a[1] = c;
}

#define TIME_DECAY_SLOW         0.1f
#define TIME_DECAY_MED          0.04f
#define TIME_DECAY_FAST         0.009f

void CG_DoGlass( vec3_t verts[4], vec3_t normal, vec3_t dmgPt, vec3_t dmgDir, float dmgRadius, int maxShards )
{
        int                     i, t;
        int                     mxHeight, mxWidth;
        float           height, width;
        float           stepWidth, stepHeight;
        float           timeDecay;
        float           x, z;
        float           xx, zz;
        float           dif;
        int                     time = 0;
        int                     glassShards = 0;
        qboolean        stick = qtrue;
        vec3_t          subVerts[4];
        vec2_t          biPoints[4];

        // To do a smarter tesselation, we should figure out the relative height and width of the brush face,
        //      then use this to pick a lod value from 1-3 in each axis.  This will give us 1-9 lod levels, which will
        //      hopefully be sufficient.
        CG_CalcHeightWidth( verts, &height, &width );

        trap_S_StartSound( dmgPt, -1, CHAN_AUTO, trap_S_RegisterSound("sound/effects/glassbreak1.wav"));

        // Pick "LOD" for height
        if ( height < 100 )
        {
                stepHeight = 0.2f;
                mxHeight = 5;
                timeDecay = TIME_DECAY_SLOW;
        }
        else if ( height > 220 )
        {
                stepHeight = 0.05f;
                mxHeight = 20;
                timeDecay = TIME_DECAY_FAST;
        }
        else
        {
                stepHeight = 0.1f;
                mxHeight = 10;
                timeDecay = TIME_DECAY_MED;
        }

        // Pick "LOD" for width
        /*
        if ( width < 100 )
        {
                stepWidth = 0.2f;
                mxWidth = 5;
                timeDecay = ( timeDecay + TIME_DECAY_SLOW ) * 0.5f;
        }
        else if ( width > 220 )
        {
                stepWidth = 0.05f;
                mxWidth = 20;
                timeDecay = ( timeDecay + TIME_DECAY_FAST ) * 0.5f;
        }
        else
        {
                stepWidth = 0.1f;
                mxWidth = 10;
                timeDecay = ( timeDecay + TIME_DECAY_MED ) * 0.5f;
        }
        */

        //Attempt to scale the glass directly to the size of the window

        stepWidth = (0.25f - (width*0.0002)); //(width*0.0005));
        mxWidth = width*0.2;
        timeDecay = ( timeDecay + TIME_DECAY_FAST ) * 0.5f;

        if (stepWidth < 0.01f)
        {
                stepWidth = 0.01f;
        }
        if (mxWidth < 5)
        {
                mxWidth = 5;
        }

        for ( z = 0.0f, i = 0; z < 1.0f; z += stepHeight, i++ )
        {
                for ( x = 0.0f, t = 0; x < 1.0f; x += stepWidth, t++ )
                {
                        // This is nasty..
                        if ( t > 0 && t < mxWidth )
                        {
                                xx = x - offX[i][t];
                        }
                        else
                        {
                                xx = x;
                        }

                        if ( i > 0 && i < mxHeight )
                        {
                                zz = z - offZ[t][i];
                        }
                        else
                        {
                                zz = z;
                        }

                        Vector2Set( biPoints[0], xx, zz );

                        if ( t + 1 > 0 && t + 1 < mxWidth )
                        {
                                xx = x - offX[i][t + 1];
                        }
                        else
                        {
                                xx = x;
                        }

                        if ( i > 0 && i < mxHeight )
                        {
                                zz = z - offZ[t + 1][i];
                        }
                        else
                        {
                                zz = z;
                        }

                        Vector2Set( biPoints[1], xx + stepWidth, zz );

                        if ( t + 1 > 0 && t + 1 < mxWidth )
                        {
                                xx = x - offX[i + 1][t + 1];
                        }
                        else
                        {
                                xx = x;
                        }

                        if ( i + 1 > 0 && i + 1 < mxHeight )
                        {
                                zz = z - offZ[t + 1][i + 1];
                        }
                        else
                        {
                                zz = z;
                        }

                        Vector2Set( biPoints[2], xx + stepWidth, zz + stepHeight);

                        if ( t > 0 && t < mxWidth )
                        {
                                xx = x - offX[i + 1][t];
                        }
                        else
                        {
                                xx = x;
                        }

                        if ( i + 1 > 0 && i + 1 < mxHeight )
                        {
                                zz = z - offZ[t][i + 1];
                        }
                        else
                        {
                                zz = z;
                        }

                        Vector2Set( biPoints[3], xx, zz + stepHeight );

                        CG_CalcBiLerp( verts, subVerts, biPoints );
                        
                        dif = DistanceSquared( subVerts[0], dmgPt ) * timeDecay - random() * 32;
                        
                        // If we decrease dif, we are increasing the impact area, making it more likely to blow out large holes
                        dif -= dmgRadius * dmgRadius;

                        if ( dif > 1 )
                        {
                                stick = qtrue;
                                time = dif + random() * 200;
                        }
                        else
                        {
                                stick = qfalse;
                                time = 0;
                        }

                        CG_DoGlassQuad( subVerts, biPoints, stick, time, dmgDir );
                        glassShards++;

                        if (maxShards && glassShards >= maxShards)
                        {
                                return;
                        }
                }
        }
}

/*
==================
CG_GlassShatter
Break glass with fancy method
==================
*/
void CG_GlassShatter(int entnum, vec3_t dmgPt, vec3_t dmgDir, float dmgRadius, int maxShards)
{
        vec3_t          verts[4], normal;

        if (cgs.inlineDrawModel[cg_entities[entnum].currentState.modelindex])
        {
                trap_R_GetBModelVerts(cgs.inlineDrawModel[cg_entities[entnum].currentState.modelindex], verts, normal);
                CG_DoGlass(verts, normal, dmgPt, dmgDir, dmgRadius, maxShards);
        }
        //otherwise something awful has happened.
}

/*
==================
CG_GlassShatter_Old
Throws glass shards from within a given bounding box in the world
==================
*/
void CG_GlassShatter_Old(int entnum, vec3_t org, vec3_t mins, vec3_t maxs)
{
        vec3_t velocity, a, shardorg, dif, difx;
        float windowmass;
        float shardsthrow = 0;
        char chunkname[256];

        trap_S_StartSound(org, entnum, CHAN_BODY, trap_S_RegisterSound("sound/effects/glassbreak1.wav"));

        VectorSubtract(maxs, mins, a);

        windowmass = VectorLength(a); //should give us some idea of how big the chunk of glass is

        while (shardsthrow < windowmass)
        {
                velocity[0] = crandom()*150;
                velocity[1] = crandom()*150;
                velocity[2] = 150 + crandom()*75;

                Com_sprintf(chunkname, sizeof(chunkname), "models/chunks/glass/glchunks_%i.md3", Q_irand(1, 6));
                VectorCopy(org, shardorg);
        
                dif[0] = (maxs[0]-mins[0])/2;
                dif[1] = (maxs[1]-mins[1])/2;
                dif[2] = (maxs[2]-mins[2])/2;

                if (dif[0] < 2)
                {
                        dif[0] = 2;
                }
                if (dif[1] < 2)
                {
                        dif[1] = 2;
                }
                if (dif[2] < 2)
                {
                        dif[2] = 2;
                }

                difx[0] = Q_irand(1, (dif[0]*0.9)*2);
                difx[1] = Q_irand(1, (dif[1]*0.9)*2);
                difx[2] = Q_irand(1, (dif[2]*0.9)*2);

                if (difx[0] > dif[0])
                {
                        shardorg[0] += difx[0]-(dif[0]);
                }
                else
                {
                        shardorg[0] -= difx[0];
                }
                if (difx[1] > dif[1])
                {
                        shardorg[1] += difx[1]-(dif[1]);
                }
                else
                {
                        shardorg[1] -= difx[1];
                }
                if (difx[2] > dif[2])
                {
                        shardorg[2] += difx[2]-(dif[2]);
                }
                else
                {
                        shardorg[2] -= difx[2];
                }

                //CG_TestLine(org, shardorg, 5000, 0x0000ff, 3);

                CG_ThrowChunk( shardorg, velocity, trap_R_RegisterModel( chunkname ), 0, 254 );

                shardsthrow += 10;
        }
}

/*
==================
CG_CreateDebris
Throws specified debris from within a given bounding box in the world
==================
*/
#define DEBRIS_SPECIALCASE_ROCK                 -1
#define DEBRIS_SPECIALCASE_CHUNKS               -2
#define DEBRIS_SPECIALCASE_WOOD                 -3
#define DEBRIS_SPECIALCASE_GLASS                -4

#define NUM_DEBRIS_MODELS_GLASS                         8
#define NUM_DEBRIS_MODELS_WOOD                          8
#define NUM_DEBRIS_MODELS_CHUNKS                        3
#define NUM_DEBRIS_MODELS_ROCKS                         4 //12

int dbModels_Glass[NUM_DEBRIS_MODELS_GLASS];
int dbModels_Wood[NUM_DEBRIS_MODELS_WOOD];
int dbModels_Chunks[NUM_DEBRIS_MODELS_CHUNKS];
int dbModels_Rocks[NUM_DEBRIS_MODELS_ROCKS];

void CG_CreateDebris(int entnum, vec3_t org, vec3_t mins, vec3_t maxs, int debrissound, int debrismodel)
{
        vec3_t velocity, a, shardorg, dif, difx;
        float windowmass;
        float shardsthrow = 0;
        int omodel = debrismodel;

        if (omodel == DEBRIS_SPECIALCASE_GLASS && !dbModels_Glass[0])
        { //glass no longer exists, using it for metal.
                dbModels_Glass[0] = trap_R_RegisterModel("models/chunks/metal/metal1_1.md3");
                dbModels_Glass[1] = trap_R_RegisterModel("models/chunks/metal/metal1_2.md3");
                dbModels_Glass[2] = trap_R_RegisterModel("models/chunks/metal/metal1_3.md3");
                dbModels_Glass[3] = trap_R_RegisterModel("models/chunks/metal/metal1_4.md3");
                dbModels_Glass[4] = trap_R_RegisterModel("models/chunks/metal/metal2_1.md3");
                dbModels_Glass[5] = trap_R_RegisterModel("models/chunks/metal/metal2_2.md3");
                dbModels_Glass[6] = trap_R_RegisterModel("models/chunks/metal/metal2_3.md3");
                dbModels_Glass[7] = trap_R_RegisterModel("models/chunks/metal/metal2_4.md3");
        }
        if (omodel == DEBRIS_SPECIALCASE_WOOD && !dbModels_Wood[0])
        {
                dbModels_Wood[0] = trap_R_RegisterModel("models/chunks/crate/crate1_1.md3");
                dbModels_Wood[1] = trap_R_RegisterModel("models/chunks/crate/crate1_2.md3");
                dbModels_Wood[2] = trap_R_RegisterModel("models/chunks/crate/crate1_3.md3");
                dbModels_Wood[3] = trap_R_RegisterModel("models/chunks/crate/crate1_4.md3");
                dbModels_Wood[4] = trap_R_RegisterModel("models/chunks/crate/crate2_1.md3");
                dbModels_Wood[5] = trap_R_RegisterModel("models/chunks/crate/crate2_2.md3");
                dbModels_Wood[6] = trap_R_RegisterModel("models/chunks/crate/crate2_3.md3");
                dbModels_Wood[7] = trap_R_RegisterModel("models/chunks/crate/crate2_4.md3");
        }
        if (omodel == DEBRIS_SPECIALCASE_CHUNKS && !dbModels_Chunks[0])
        {
                dbModels_Chunks[0] = trap_R_RegisterModel("models/chunks/generic/chunks_1.md3");
                dbModels_Chunks[1] = trap_R_RegisterModel("models/chunks/generic/chunks_2.md3");
        }
        if (omodel == DEBRIS_SPECIALCASE_ROCK && !dbModels_Rocks[0])
        {
                dbModels_Rocks[0] = trap_R_RegisterModel("models/chunks/rock/rock1_1.md3");
                dbModels_Rocks[1] = trap_R_RegisterModel("models/chunks/rock/rock1_2.md3");
                dbModels_Rocks[2] = trap_R_RegisterModel("models/chunks/rock/rock1_3.md3");
                dbModels_Rocks[3] = trap_R_RegisterModel("models/chunks/rock/rock1_4.md3");
                /*
                dbModels_Rocks[4] = trap_R_RegisterModel("models/chunks/rock/rock2_1.md3");
                dbModels_Rocks[5] = trap_R_RegisterModel("models/chunks/rock/rock2_2.md3");
                dbModels_Rocks[6] = trap_R_RegisterModel("models/chunks/rock/rock2_3.md3");
                dbModels_Rocks[7] = trap_R_RegisterModel("models/chunks/rock/rock2_4.md3");
                dbModels_Rocks[8] = trap_R_RegisterModel("models/chunks/rock/rock3_1.md3");
                dbModels_Rocks[9] = trap_R_RegisterModel("models/chunks/rock/rock3_2.md3");
                dbModels_Rocks[10] = trap_R_RegisterModel("models/chunks/rock/rock3_3.md3");
                dbModels_Rocks[11] = trap_R_RegisterModel("models/chunks/rock/rock3_4.md3");
                */
        }

        VectorSubtract(maxs, mins, a);

        windowmass = VectorLength(a); //should give us some idea of how big the chunk of glass is

        while (shardsthrow < windowmass)
        {
                velocity[0] = crandom()*150;
                velocity[1] = crandom()*150;
                velocity[2] = 150 + crandom()*75;

                if (omodel == DEBRIS_SPECIALCASE_GLASS)
                {
                        debrismodel = dbModels_Glass[Q_irand(0, NUM_DEBRIS_MODELS_GLASS-1)];
                }
                else if (omodel == DEBRIS_SPECIALCASE_WOOD)
                {
                        debrismodel = dbModels_Wood[Q_irand(0, NUM_DEBRIS_MODELS_WOOD-1)];
                }
                else if (omodel == DEBRIS_SPECIALCASE_CHUNKS)
                {
                        debrismodel = dbModels_Chunks[Q_irand(0, NUM_DEBRIS_MODELS_CHUNKS-1)];
                }
                else if (omodel == DEBRIS_SPECIALCASE_ROCK)
                {
                        debrismodel = dbModels_Rocks[Q_irand(0, NUM_DEBRIS_MODELS_ROCKS-1)];
                }

                VectorCopy(org, shardorg);
        
                dif[0] = (maxs[0]-mins[0])/2;
                dif[1] = (maxs[1]-mins[1])/2;
                dif[2] = (maxs[2]-mins[2])/2;

                if (dif[0] < 2)
                {
                        dif[0] = 2;
                }
                if (dif[1] < 2)
                {
                        dif[1] = 2;
                }
                if (dif[2] < 2)
                {
                        dif[2] = 2;
                }

                difx[0] = Q_irand(1, (dif[0]*0.9)*2);
                difx[1] = Q_irand(1, (dif[1]*0.9)*2);
                difx[2] = Q_irand(1, (dif[2]*0.9)*2);

                if (difx[0] > dif[0])
                {
                        shardorg[0] += difx[0]-(dif[0]);
                }
                else
                {
                        shardorg[0] -= difx[0];
                }
                if (difx[1] > dif[1])
                {
                        shardorg[1] += difx[1]-(dif[1]);
                }
                else
                {
                        shardorg[1] -= difx[1];
                }
                if (difx[2] > dif[2])
                {
                        shardorg[2] += difx[2]-(dif[2]);
                }
                else
                {
                        shardorg[2] -= difx[2];
                }

                //CG_TestLine(org, shardorg, 5000, 0x0000ff, 3);

                CG_ThrowChunk( shardorg, velocity, debrismodel, debrissound, 0 );

                shardsthrow += 10;
        }
}

//==========================================================
//SP-style chunks
//==========================================================

/*
-------------------------
CG_ExplosionEffects

Used to find the player and shake the camera if close enough
intensity ranges from 1 (minor tremble) to 16 (major quake)
-------------------------
*/

void CG_ExplosionEffects( vec3_t origin, float intensity, int radius, int time )
{
        //FIXME: When exactly is the vieworg calculated in relation to the rest of the frame?s

        vec3_t  dir;
        float   dist, intensityScale;
        float   realIntensity;

        VectorSubtract( cg.refdef.vieworg, origin, dir );
        dist = VectorNormalize( dir );

        //Use the dir to add kick to the explosion

        if ( dist > radius )
                return;

        intensityScale = 1 - ( dist / (float) radius );
        realIntensity = intensity * intensityScale;

        CGCam_Shake( realIntensity, time );
}

/*
-------------------------
CG_MiscModelExplosion

Adds an explosion to a misc model breakables
-------------------------
*/

void CG_MiscModelExplosion( vec3_t mins, vec3_t maxs, int size, material_t chunkType )
{
        int             ct = 13;
        float   r;
        vec3_t  org, mid, dir;
        char    *effect = NULL, *effect2 = NULL;
        int             eID1, eID2 = 0;
        int             i;

        VectorAdd( mins, maxs, mid );
        VectorScale( mid, 0.5f, mid );

        switch( chunkType )
        {
        case MAT_GLASS:
                effect = "chunks/glassbreak";
                ct = 5;
                break;
        case MAT_GLASS_METAL:
                effect = "chunks/glassbreak";
                effect2 = "chunks/metalexplode";
                ct = 5;
                break;
        case MAT_ELECTRICAL:
        case MAT_ELEC_METAL:
                effect = "chunks/sparkexplode";
                ct = 5;
                break;
        case MAT_METAL:
        case MAT_METAL2:
        case MAT_METAL3:
        case MAT_CRATE1:
        case MAT_CRATE2:
                effect = "chunks/metalexplode";
                ct = 2;
                break;
        case MAT_GRATE1:
                effect = "chunks/grateexplode";
                ct = 8;
                break;
        case MAT_ROPE:
                ct = 20;
                effect = "chunks/ropebreak";
                break;
        case MAT_WHITE_METAL: //not sure what this crap is really supposed to be..
        case MAT_DRK_STONE:
        case MAT_LT_STONE:
        case MAT_GREY_STONE:
        case MAT_SNOWY_ROCK:
                switch( size )
                {
                case 2:
                        effect = "chunks/rockbreaklg";
                        break;
                case 1:
                default:
                        effect = "chunks/rockbreakmed";
                        break;
                }
        }

        if ( !effect )
        {
                return;
        }

        ct += 7 * size;

        // FIXME: real precache .. VERify that these need to be here...don't think they would because the effects should be registered in g_breakable
        //rww - No they don't.. indexed effects gameside get precached on load clientside, as server objects are setup before client asset load time.
        //However, we need to index them, so..
        eID1 = trap_FX_RegisterEffect( effect );

        if ( effect2 && effect2[0] )
        {
                // FIXME: real precache
                eID2 = trap_FX_RegisterEffect( effect2 );
        }

        // spawn chunk roughly in the bbox of the thing..
        for ( i = 0; i < ct; i++ )
        {
                int j;
                for( j = 0; j < 3; j++ )
                {
                        r = random() * 0.8f + 0.1f;
                        org[j] = ( r * mins[j] + ( 1 - r ) * maxs[j] );
                }

                // shoot effect away from center
                VectorSubtract( org, mid, dir );
                VectorNormalize( dir );

                if ( effect2 && effect2[0] && ( rand() & 1 ))
                {
                        trap_FX_PlayEffectID( eID2, org, dir, -1, -1 );
                }
                else
                {
                        trap_FX_PlayEffectID( eID1, org, dir, -1, -1 );
                }
        }
}

/*
-------------------------
CG_Chunks

Fun chunk spewer
-------------------------
*/

void CG_Chunks( int owner, vec3_t origin, const vec3_t normal, const vec3_t mins, const vec3_t maxs, 
                                                float speed, int numChunks, material_t chunkType, int customChunk, float baseScale )
{
        localEntity_t   *le;
        refEntity_t             *re;
        vec3_t                  dir;
        int                             i, j, k;
        int                             chunkModel = 0;
        leBounceSoundType_t     bounce = LEBS_NONE;
        float                   r, speedMod = 1.0f;
        qboolean                chunk = qfalse;

        if ( chunkType == MAT_NONE )
        {
                // Well, we should do nothing
                return;
        }

        // Set up our chunk sound info...breaking sounds are done here so they are done once on breaking..some return instantly because the chunks are done with effects instead of models
        switch( chunkType )
        {
        case MAT_GLASS:
                trap_S_StartSound( NULL, owner, CHAN_BODY, cgs.media.glassChunkSound );
                return;
                break;
        case MAT_GRATE1:
                trap_S_StartSound( NULL, owner, CHAN_BODY, cgs.media.grateSound );
                return;
                break;
        case MAT_ELECTRICAL:// (sparks)
                trap_S_StartSound( NULL, owner, CHAN_BODY, trap_S_RegisterSound (va("sound/ambience/spark%d.wav", Q_irand(1, 6))) );
                return;
                break;
        case MAT_DRK_STONE:
        case MAT_LT_STONE:
        case MAT_GREY_STONE:
        case MAT_WHITE_METAL:  // not quite sure what this stuff is supposed to be...it's for Stu
        case MAT_SNOWY_ROCK:
                trap_S_StartSound( NULL, owner, CHAN_BODY, cgs.media.rockBreakSound );
                bounce = LEBS_ROCK;
                speedMod = 0.5f; // rock blows up less
                break;
        case MAT_GLASS_METAL:
                trap_S_StartSound( NULL, owner, CHAN_BODY, cgs.media.glassChunkSound ); // FIXME: should probably have a custom sound
                bounce = LEBS_METAL;
                break;
        case MAT_CRATE1:
        case MAT_CRATE2:
                trap_S_StartSound( NULL, owner, CHAN_BODY, cgs.media.crateBreakSound[Q_irand(0,1)] );
                break;
        case MAT_METAL:
        case MAT_METAL2:
        case MAT_METAL3:
        case MAT_ELEC_METAL:// FIXME: maybe have its own sound?
                trap_S_StartSound( NULL, owner, CHAN_BODY, cgs.media.chunkSound );
                bounce = LEBS_METAL;
                speedMod = 0.8f; // metal blows up a bit more
                break;
        case MAT_ROPE:
//              trap_S_StartSound( NULL, owner, CHAN_BODY, cgi_S_RegisterSound( "" ));  FIXME:  needs a sound
                return;
                break;
        }

        if ( baseScale <= 0.0f )
        {
                baseScale = 1.0f;
        }

        // Chunks
        for( i = 0; i < numChunks; i++ )
        {
                if ( customChunk > 0 )
                {
                        // Try to use a custom chunk.
                        if ( cgs.gameModels[customChunk] )
                        {
                                chunk = qtrue;
                                chunkModel = cgs.gameModels[customChunk];
                        }
                }

                if ( !chunk )
                {
                        // No custom chunk.  Pick a random chunk type at run-time so we don't get the same chunks
                        switch( chunkType )
                        {
                        case MAT_METAL2: //bluegrey
                                chunkModel = cgs.media.chunkModels[CHUNK_METAL2][Q_irand(0, 3)];
                                break;
                        case MAT_GREY_STONE://gray
                                chunkModel = cgs.media.chunkModels[CHUNK_ROCK1][Q_irand(0, 3)];
                                break;
                        case MAT_LT_STONE: //tan
                                chunkModel = cgs.media.chunkModels[CHUNK_ROCK2][Q_irand(0, 3)];
                                break;
                        case MAT_DRK_STONE://brown
                                chunkModel = cgs.media.chunkModels[CHUNK_ROCK3][Q_irand(0, 3)];
                                break;
                        case MAT_SNOWY_ROCK://gray & brown
                                if ( Q_irand( 0, 1 ) )
                                {
                                        chunkModel = cgs.media.chunkModels[CHUNK_ROCK1][Q_irand(0, 3)];
                                }
                                else
                                {
                                        chunkModel = cgs.media.chunkModels[CHUNK_ROCK3][Q_irand(0, 3)];
                                }
                                break;
                        case MAT_WHITE_METAL:
                                chunkModel = cgs.media.chunkModels[CHUNK_WHITE_METAL][Q_irand(0, 3)];
                                break;
                        case MAT_CRATE1://yellow multi-colored crate chunks
                                chunkModel = cgs.media.chunkModels[CHUNK_CRATE1][Q_irand(0, 3)];
                                break;
                        case MAT_CRATE2://red multi-colored crate chunks
                                chunkModel = cgs.media.chunkModels[CHUNK_CRATE2][Q_irand(0, 3)];
                                break;
                        case MAT_ELEC_METAL:
                        case MAT_GLASS_METAL:
                        case MAT_METAL://grey
                                chunkModel = cgs.media.chunkModels[CHUNK_METAL1][Q_irand(0, 3)];
                                break;
                        case MAT_METAL3:
                                if ( rand() & 1 )
                                {
                                        chunkModel = cgs.media.chunkModels[CHUNK_METAL1][Q_irand(0, 3)];
                                }
                                else
                                {
                                        chunkModel = cgs.media.chunkModels[CHUNK_METAL2][Q_irand(0, 3)];
                                }
                                break;
                        }
                }

                // It wouldn't look good to throw a bunch of RGB axis models...so make sure we have something to work with.
                if ( chunkModel )
                {
                        le = CG_AllocLocalEntity();
                        re = &le->refEntity;

                        re->hModel = chunkModel;
                        le->leType = LE_FRAGMENT;
                        le->endTime = cg.time + 1300 + random() * 900;

                        // spawn chunk roughly in the bbox of the thing...bias towards center in case thing blowing up doesn't complete fill its bbox.
                        for( j = 0; j < 3; j++ )
                        {
                                r = random() * 0.8f + 0.1f;
                                re->origin[j] = ( r * mins[j] + ( 1 - r ) * maxs[j] );
                        }
                        VectorCopy( re->origin, le->pos.trBase );

                        // Move out from center of thing, otherwise you can end up things moving across the brush in an undesirable direction.  Visually looks wrong
                        VectorSubtract( re->origin, origin, dir );
                        VectorNormalize( dir );
                        VectorScale( dir, flrand( speed * 0.5f, speed * 1.25f ) * speedMod, le->pos.trDelta );

                        // Angular Velocity
                        VectorSet( le->angles.trBase, random() * 360, random() * 360, random() * 360 );

                        le->angles.trDelta[0] = crandom();
                        le->angles.trDelta[1] = crandom();
                        le->angles.trDelta[2] = 0; // don't do roll

                        VectorScale( le->angles.trDelta, random() * 600.0f + 200.0f, le->angles.trDelta );

                        le->pos.trType = TR_GRAVITY;
                        le->angles.trType = TR_LINEAR;
                        le->pos.trTime = le->angles.trTime = cg.time;
                        le->bounceFactor = 0.2f + random() * 0.2f;
                        le->leFlags |= LEF_TUMBLE;
                        //le->ownerGentNum = owner;
                        le->leBounceSoundType = bounce; 

                        // Make sure that we have the desired start size set
                        le->radius = flrand( baseScale * 0.75f, baseScale * 1.25f );
                        re->nonNormalizedAxes = qtrue;
                        AxisCopy( axisDefault, re->axis ); // could do an angles to axis, but this is cheaper and works ok
                        for( k = 0; k < 3; k++ )
                        {
                                re->modelScale[k] = le->radius;
                        }
                        ScaleModelAxis(re);
                        /*
                        for( k = 0; k < 3; k++ )
                        {
                                VectorScale( re->axis[k], le->radius, re->axis[k] );
                        }
                        */
                }
        }
}

/*
==================
CG_ScorePlum
==================
*/
void CG_ScorePlum( int client, vec3_t org, int score ) {
        localEntity_t   *le;
        refEntity_t             *re;
        vec3_t                  angles;
        static vec3_t lastPos;

        // only visualize for the client that scored
        if (client != cg.predictedPlayerState.clientNum || cg_scorePlum.integer == 0) {
                return;
        }

        le = CG_AllocLocalEntity();
        le->leFlags = 0;
        le->leType = LE_SCOREPLUM;
        le->startTime = cg.time;
        le->endTime = cg.time + 4000;
        le->lifeRate = 1.0 / ( le->endTime - le->startTime );

        
        le->color[0] = le->color[1] = le->color[2] = le->color[3] = 1.0;
        le->radius = score;
        
        VectorCopy( org, le->pos.trBase );
        if (org[2] >= lastPos[2] - 20 && org[2] <= lastPos[2] + 20) {
                le->pos.trBase[2] -= 20;
        }

        //CG_Printf( "Plum origin %i %i %i -- %i\n", (int)org[0], (int)org[1], (int)org[2], (int)Distance(org, lastPos));
        VectorCopy(org, lastPos);


        re = &le->refEntity;

        re->reType = RT_SPRITE;
        re->radius = 16;

        VectorClear(angles);
        AnglesToAxis( angles, re->axis );
}

/*
====================
CG_MakeExplosion
====================
*/
localEntity_t *CG_MakeExplosion( vec3_t origin, vec3_t dir, 
                                                                qhandle_t hModel, int numFrames, qhandle_t shader,
                                                                int msec, qboolean isSprite, float scale, int flags )
{
        float                   ang = 0;
        localEntity_t   *ex;
        int                             offset;
        vec3_t                  tmpVec, newOrigin;

        if ( msec <= 0 ) {
                CG_Error( "CG_MakeExplosion: msec = %i", msec );
        }

        // skew the time a bit so they aren't all in sync
        offset = rand() & 63;

        ex = CG_AllocLocalEntity();
        if ( isSprite ) {
                ex->leType = LE_SPRITE_EXPLOSION; 
                ex->refEntity.rotation = rand() % 360;
                ex->radius = scale;
                VectorScale( dir, 16, tmpVec );
                VectorAdd( tmpVec, origin, newOrigin );
        } else {
                ex->leType = LE_EXPLOSION;
                VectorCopy( origin, newOrigin );

                // set axis with random rotate when necessary
                if ( !dir )
                {
                        AxisClear( ex->refEntity.axis );
                }
                else
                {
                        if ( !(flags & LEF_NO_RANDOM_ROTATE) )
                                ang = rand() % 360;
                        VectorCopy( dir, ex->refEntity.axis[0] );
                        RotateAroundDirection( ex->refEntity.axis, ang );
                }
        }

        ex->startTime = cg.time - offset;
        ex->endTime = ex->startTime + msec;
        
        // bias the time so all shader effects start correctly
        ex->refEntity.shaderTime = ex->startTime / 1000.0f;

        ex->refEntity.hModel = hModel;
        ex->refEntity.customShader = shader;
        ex->lifeRate = (float)numFrames / msec;
        ex->leFlags = flags;

        //Scale the explosion
        if (scale != 1) {
                ex->refEntity.nonNormalizedAxes = qtrue;

                VectorScale( ex->refEntity.axis[0], scale, ex->refEntity.axis[0] );
                VectorScale( ex->refEntity.axis[1], scale, ex->refEntity.axis[1] );
                VectorScale( ex->refEntity.axis[2], scale, ex->refEntity.axis[2] );
        }
        // set origin
        VectorCopy ( newOrigin, ex->refEntity.origin);
        VectorCopy ( newOrigin, ex->refEntity.oldorigin );

        ex->color[0] = ex->color[1] = ex->color[2] = 1.0;

        return ex;
}


/*
-------------------------
CG_SurfaceExplosion

Adds an explosion to a surface
-------------------------
*/

#define NUM_SPARKS              12
#define NUM_PUFFS               1
#define NUM_EXPLOSIONS  4

void CG_SurfaceExplosion( vec3_t origin, vec3_t normal, float radius, float shake_speed, qboolean smoke )
{
        localEntity_t   *le;
        //FXTrail                       *particle;
        vec3_t                  direction, new_org;
        vec3_t                  velocity                = { 0, 0, 0 };
        vec3_t                  temp_org, temp_vel;
        float                   scale, dscale;
        int                             i, numSparks;

        //Sparks
        numSparks = 16 + (random() * 16.0f);
        
        for ( i = 0; i < numSparks; i++ )
        {       
                scale = 0.25f + (random() * 2.0f);
                dscale = -scale*0.5;

/*              particle = FX_AddTrail( origin,
                                                                NULL,
                                                                NULL,
                                                                32.0f,
                                                                -64.0f,
                                                                scale,
                                                                -scale,
                                                                1.0f,
                                                                0.0f,
                                                                0.25f,
                                                                4000.0f,
                                                                cgs.media.sparkShader,
                                                                rand() & FXF_BOUNCE);
                if ( particle == NULL )
                        return;

                FXE_Spray( normal, 500, 150, 1.0f, 768 + (rand() & 255), (FXPrimitive *) particle );*/
        }

        //Smoke
        //Move this out a little from the impact surface
        VectorMA( origin,