886 lines
24 KiB
C
886 lines
24 KiB
C
//=======================================================================
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// Copyright XashXT Group 2010 ©
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// pm_studio.c - stduio models tracing
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//=======================================================================
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#include "common.h"
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#include "studio.h"
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#include "mathlib.h"
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#include "matrix_lib.h"
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#include "pm_local.h"
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#include "world.h"
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static studiohdr_t *pm_studiohdr;
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static mplane_t pm_hitboxplanes[6]; // there a temp hitbox
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static matrix4x4 pm_studiomatrix;
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static matrix4x4 pm_studiobones[MAXSTUDIOBONES];
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typedef qboolean (*pfnTrace)( pmtrace_t *trace );
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static float trace_realfraction;
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static vec3_t trace_startmins, trace_endmins;
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static vec3_t trace_startmaxs, trace_endmaxs;
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static vec3_t trace_absmins, trace_absmaxs;
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/*
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====================
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PM_InitStudioHull
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====================
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*/
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void PM_InitStudioHull( void )
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{
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int i, side;
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mplane_t *p;
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for( i = 0; i < 6; i++ )
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{
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side = i & 1;
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// planes
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p = &pm_hitboxplanes[i];
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VectorClear( p->normal );
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if( side )
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{
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p->type = PLANE_NONAXIAL;
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p->normal[i>>1] = -1.0f;
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p->signbits = (1<<(i>>1));
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}
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else
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{
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p->type = i>>1;
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p->normal[i>>1] = 1.0f;
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p->signbits = 0;
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}
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}
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}
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/*
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====================
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PM_HullForHitbox
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====================
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*/
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static void PM_HullForHitbox( const vec3_t mins, const vec3_t maxs )
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{
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pm_hitboxplanes[0].dist = maxs[0];
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pm_hitboxplanes[1].dist = -mins[0];
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pm_hitboxplanes[2].dist = maxs[1];
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pm_hitboxplanes[3].dist = -mins[1];
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pm_hitboxplanes[4].dist = maxs[2];
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pm_hitboxplanes[5].dist = -mins[2];
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}
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/*
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===============================================================================
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STUDIO MODELS TRACING
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===============================================================================
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*/
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/*
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====================
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StudioSetUpTransform
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====================
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*/
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static void PM_StudioSetUpTransform( physent_t *pe )
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{
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float *ang, *org;
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float scale = 1.0f;
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org = pe->origin;
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ang = pe->angles;
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// FIXME: apply scale to studiomodels
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Matrix4x4_CreateFromEntity( pm_studiomatrix, org[0], org[1], org[2], -ang[PITCH], ang[YAW], ang[ROLL], scale );
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}
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/*
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====================
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StudioCalcBoneAdj
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====================
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*/
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static void PM_StudioCalcBoneAdj( float dadt, float *adj, const byte *pcontroller1, const byte *pcontroller2 )
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{
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int i, j;
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float value;
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mstudiobonecontroller_t *pbonecontroller;
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pbonecontroller = (mstudiobonecontroller_t *)((byte *)pm_studiohdr + pm_studiohdr->bonecontrollerindex);
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for( j = 0; j < pm_studiohdr->numbonecontrollers; j++ )
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{
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i = pbonecontroller[j].index;
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if( i == 4 ) continue; // ignore mouth
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if( i <= MAXSTUDIOCONTROLLERS )
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{
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// check for 360% wrapping
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if( pbonecontroller[j].type & STUDIO_RLOOP )
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{
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if( abs( pcontroller1[i] - pcontroller2[i] ) > 128 )
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{
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int a, b;
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a = (pcontroller1[j] + 128) % 256;
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b = (pcontroller2[j] + 128) % 256;
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value = ((a * dadt) + (b * (1 - dadt)) - 128) * (360.0/256.0) + pbonecontroller[j].start;
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}
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else
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{
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value = ((pcontroller1[i] * dadt + (pcontroller2[i]) * (1.0 - dadt))) * (360.0/256.0) + pbonecontroller[j].start;
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}
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}
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else
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{
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value = (pcontroller1[i] * dadt + pcontroller2[i] * (1.0 - dadt)) / 255.0;
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if( value < 0 ) value = 0;
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if( value > 1.0 ) value = 1.0;
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value = (1.0 - value) * pbonecontroller[j].start + value * pbonecontroller[j].end;
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}
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}
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switch( pbonecontroller[j].type & STUDIO_TYPES )
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{
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case STUDIO_XR:
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case STUDIO_YR:
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case STUDIO_ZR:
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adj[j] = value * (M_PI / 180.0);
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break;
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case STUDIO_X:
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case STUDIO_Y:
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case STUDIO_Z:
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adj[j] = value;
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break;
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}
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}
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}
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/*
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====================
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StudioCalcBoneQuaterion
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====================
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*/
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static void PM_StudioCalcBoneQuaterion( int frame, float s, mstudiobone_t *pbone, mstudioanim_t *panim, float *adj, float *q )
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{
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int j, k;
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vec4_t q1, q2;
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vec3_t angle1, angle2;
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mstudioanimvalue_t *panimvalue;
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for( j = 0; j < 3; j++ )
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{
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if( panim->offset[j+3] == 0 )
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{
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angle2[j] = angle1[j] = pbone->value[j+3]; // default;
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}
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else
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{
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panimvalue = (mstudioanimvalue_t *)((byte *)panim + panim->offset[j+3]);
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k = frame;
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// debug
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if( panimvalue->num.total < panimvalue->num.valid )
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k = 0;
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while( panimvalue->num.total <= k )
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{
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k -= panimvalue->num.total;
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panimvalue += panimvalue->num.valid + 1;
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// DEBUG
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if( panimvalue->num.total < panimvalue->num.valid )
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k = 0;
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}
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// Bah, missing blend!
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if( panimvalue->num.valid > k )
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{
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angle1[j] = panimvalue[k+1].value;
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if( panimvalue->num.valid > k + 1 )
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{
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angle2[j] = panimvalue[k+2].value;
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}
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else
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{
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if( panimvalue->num.total > k + 1 )
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angle2[j] = angle1[j];
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else angle2[j] = panimvalue[panimvalue->num.valid+2].value;
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}
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}
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else
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{
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angle1[j] = panimvalue[panimvalue->num.valid].value;
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if( panimvalue->num.total > k + 1 )
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{
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angle2[j] = angle1[j];
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}
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else
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{
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angle2[j] = panimvalue[panimvalue->num.valid + 2].value;
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}
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}
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angle1[j] = pbone->value[j+3] + angle1[j] * pbone->scale[j+3];
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angle2[j] = pbone->value[j+3] + angle2[j] * pbone->scale[j+3];
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}
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if( pbone->bonecontroller[j+3] != -1 )
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{
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angle1[j] += adj[pbone->bonecontroller[j+3]];
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angle2[j] += adj[pbone->bonecontroller[j+3]];
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}
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}
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if( !VectorCompare( angle1, angle2 ))
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{
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AngleQuaternion( angle1, q1 );
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AngleQuaternion( angle2, q2 );
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QuaternionSlerp( q1, q2, s, q );
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}
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else
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{
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AngleQuaternion( angle1, q );
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}
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}
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/*
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====================
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StudioCalcBonePosition
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====================
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*/
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static void PM_StudioCalcBonePosition( int frame, float s, mstudiobone_t *pbone, mstudioanim_t *panim, float *adj, float *pos )
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{
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int j, k;
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mstudioanimvalue_t *panimvalue;
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for( j = 0; j < 3; j++ )
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{
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pos[j] = pbone->value[j]; // default;
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if( panim->offset[j] != 0.0f )
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{
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panimvalue = (mstudioanimvalue_t *)((byte *)panim + panim->offset[j]);
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k = frame;
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// debug
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if( panimvalue->num.total < panimvalue->num.valid )
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k = 0;
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// find span of values that includes the frame we want
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while( panimvalue->num.total <= k )
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{
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k -= panimvalue->num.total;
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panimvalue += panimvalue->num.valid + 1;
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// DEBUG
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if( panimvalue->num.total < panimvalue->num.valid )
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k = 0;
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}
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// if we're inside the span
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if( panimvalue->num.valid > k )
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{
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// and there's more data in the span
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if( panimvalue->num.valid > k + 1 )
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{
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pos[j] += (panimvalue[k+1].value * (1.0f - s) + s * panimvalue[k+2].value) * pbone->scale[j];
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}
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else
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{
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pos[j] += panimvalue[k+1].value * pbone->scale[j];
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}
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}
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else
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{
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// are we at the end of the repeating values section and there's another section with data?
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if( panimvalue->num.total <= k + 1 )
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{
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pos[j] += (panimvalue[panimvalue->num.valid].value * (1.0f - s) + s * panimvalue[panimvalue->num.valid + 2].value) * pbone->scale[j];
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}
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else
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{
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pos[j] += panimvalue[panimvalue->num.valid].value * pbone->scale[j];
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}
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}
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}
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if( pbone->bonecontroller[j] != -1 && adj )
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{
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pos[j] += adj[pbone->bonecontroller[j]];
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}
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}
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}
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/*
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====================
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StudioCalcRotations
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====================
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*/
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static void PM_StudioCalcRotations( physent_t *pe, float pos[][3], vec4_t *q, mstudioseqdesc_t *pseqdesc, mstudioanim_t *panim, float f )
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{
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int i, frame;
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mstudiobone_t *pbone;
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float adj[MAXSTUDIOCONTROLLERS];
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float s, dadt = 1.0f; // noInterp
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if( f > pseqdesc->numframes - 1 )
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f = 0;
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else if( f < -0.01f )
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f = -0.01f;
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frame = (int)f;
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s = (f - frame);
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// add in programtic controllers
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pbone = (mstudiobone_t *)((byte *)pm_studiohdr + pm_studiohdr->boneindex);
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PM_StudioCalcBoneAdj( dadt, adj, pe->controller, pe->controller );
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for( i = 0; i < pm_studiohdr->numbones; i++, pbone++, panim++ )
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{
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PM_StudioCalcBoneQuaterion( frame, s, pbone, panim, adj, q[i] );
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PM_StudioCalcBonePosition( frame, s, pbone, panim, adj, pos[i] );
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}
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if( pseqdesc->motiontype & STUDIO_X ) pos[pseqdesc->motionbone][0] = 0.0f;
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if( pseqdesc->motiontype & STUDIO_Y ) pos[pseqdesc->motionbone][1] = 0.0f;
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if( pseqdesc->motiontype & STUDIO_Z ) pos[pseqdesc->motionbone][2] = 0.0f;
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s = 0 * ((1.0 - (f - (int)(f))) / (pseqdesc->numframes)) * 1.0f; // framerate
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if( pseqdesc->motiontype & STUDIO_LX ) pos[pseqdesc->motionbone][0] += s * pseqdesc->linearmovement[0];
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if( pseqdesc->motiontype & STUDIO_LY ) pos[pseqdesc->motionbone][1] += s * pseqdesc->linearmovement[1];
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if( pseqdesc->motiontype & STUDIO_LZ ) pos[pseqdesc->motionbone][2] += s * pseqdesc->linearmovement[2];
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}
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/*
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====================
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StudioEstimateFrame
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====================
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*/
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static float PM_StudioEstimateFrame( physent_t *pe, mstudioseqdesc_t *pseqdesc )
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{
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double f;
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if( pseqdesc->numframes <= 1 )
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f = 0;
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else f = (pe->frame * (pseqdesc->numframes - 1)) / 256.0;
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if( pseqdesc->flags & STUDIO_LOOPING )
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{
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if( pseqdesc->numframes > 1 )
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f -= (int)(f / (pseqdesc->numframes - 1)) * (pseqdesc->numframes - 1);
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if( f < 0 ) f += (pseqdesc->numframes - 1);
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}
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else
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{
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if( f >= pseqdesc->numframes - 1.001 )
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f = pseqdesc->numframes - 1.001;
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if( f < 0.0 ) f = 0.0;
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}
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return f;
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}
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/*
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====================
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StudioSlerpBones
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====================
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*/
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static void PM_StudioSlerpBones( vec4_t q1[], float pos1[][3], vec4_t q2[], float pos2[][3], float s )
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{
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int i;
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vec4_t q3;
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float s1;
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s = bound( 0.0f, s, 1.0f );
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s1 = 1.0f - s;
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for( i = 0; i < pm_studiohdr->numbones; i++ )
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{
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QuaternionSlerp( q1[i], q2[i], s, q3 );
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q1[i][0] = q3[0];
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q1[i][1] = q3[1];
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q1[i][2] = q3[2];
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q1[i][3] = q3[3];
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pos1[i][0] = pos1[i][0] * s1 + pos2[i][0] * s;
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pos1[i][1] = pos1[i][1] * s1 + pos2[i][1] * s;
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pos1[i][2] = pos1[i][2] * s1 + pos2[i][2] * s;
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}
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}
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/*
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====================
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PM_StudioGetAnim
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====================
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*/
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static mstudioanim_t *PM_StudioGetAnim( model_t *m_pSubModel, mstudioseqdesc_t *pseqdesc )
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{
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mstudioseqgroup_t *pseqgroup;
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cache_user_t *paSequences;
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size_t filesize;
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byte *buf;
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pseqgroup = (mstudioseqgroup_t *)((byte *)pm_studiohdr + pm_studiohdr->seqgroupindex) + pseqdesc->seqgroup;
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if( pseqdesc->seqgroup == 0 )
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return (mstudioanim_t *)((byte *)pm_studiohdr + pseqgroup->data + pseqdesc->animindex);
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paSequences = (cache_user_t *)m_pSubModel->submodels;
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if( paSequences == NULL )
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{
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paSequences = (cache_user_t *)Mem_Alloc( m_pSubModel->mempool, MAXSTUDIOGROUPS * sizeof( cache_user_t ));
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m_pSubModel->submodels = (void *)paSequences;
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}
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// check for already loaded
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if( !Cache_Check( m_pSubModel->mempool, ( cache_user_t *)&( paSequences[pseqdesc->seqgroup] )))
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{
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string filepath, modelname, modelpath;
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FS_FileBase( m_pSubModel->name, modelname );
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FS_ExtractFilePath( m_pSubModel->name, modelpath );
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com.snprintf( filepath, sizeof( filepath ), "%s/%s%i%i.mdl", modelpath, modelname, pseqdesc->seqgroup / 10, pseqdesc->seqgroup % 10 );
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buf = FS_LoadFile( filepath, &filesize );
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if( !buf || !filesize ) Host_Error( "CM_StudioGetAnim: can't load %s\n", modelpath );
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if( IDSEQGRPHEADER != *(uint *)buf )
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Host_Error( "PM_StudioGetAnim: %s is corrupted\n", modelpath );
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paSequences[pseqdesc->seqgroup].data = Mem_Alloc( m_pSubModel->mempool, filesize );
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Mem_Copy( paSequences[pseqdesc->seqgroup].data, buf, filesize );
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Mem_Free( buf );
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}
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return (mstudioanim_t *)((byte *)paSequences[pseqdesc->seqgroup].data + pseqdesc->animindex);
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}
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/*
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====================
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PM_StudioSetupBones
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====================
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*/
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static void PM_StudioSetupBones( physent_t *pe )
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{
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int i, oldseq;
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double f;
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mstudiobone_t *pbones;
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mstudioseqdesc_t *pseqdesc;
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mstudioanim_t *panim;
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static float pos[MAXSTUDIOBONES][3];
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static vec4_t q[MAXSTUDIOBONES];
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matrix4x4 bonematrix;
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static float pos2[MAXSTUDIOBONES][3];
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static vec4_t q2[MAXSTUDIOBONES];
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static float pos3[MAXSTUDIOBONES][3];
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static vec4_t q3[MAXSTUDIOBONES];
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static float pos4[MAXSTUDIOBONES][3];
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static vec4_t q4[MAXSTUDIOBONES];
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oldseq = pe->sequence; // TraceCode can't change sequence
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if( pe->sequence >= pm_studiohdr->numseq ) pe->sequence = 0;
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pseqdesc = (mstudioseqdesc_t *)((byte *)pm_studiohdr + pm_studiohdr->seqindex) + pe->sequence;
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f = PM_StudioEstimateFrame( pe, pseqdesc );
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panim = PM_StudioGetAnim( pe->studiomodel, pseqdesc );
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PM_StudioCalcRotations( pe, pos, q, pseqdesc, panim, f );
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if( pseqdesc->numblends > 1 )
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{
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float s;
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float dadt = 1.0f;
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panim += pm_studiohdr->numbones;
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PM_StudioCalcRotations( pe, pos2, q2, pseqdesc, panim, f );
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s = (pe->blending[0] * dadt + pe->blending[0] * ( 1.0f - dadt )) / 255.0f;
|
|
|
|
PM_StudioSlerpBones( q, pos, q2, pos2, s );
|
|
|
|
if( pseqdesc->numblends == 4 )
|
|
{
|
|
panim += pm_studiohdr->numbones;
|
|
PM_StudioCalcRotations( pe, pos3, q3, pseqdesc, panim, f );
|
|
|
|
panim += pm_studiohdr->numbones;
|
|
PM_StudioCalcRotations( pe, pos4, q4, pseqdesc, panim, f );
|
|
|
|
s = ( pe->blending[0] * dadt + pe->blending[0] * ( 1.0f - dadt )) / 255.0f;
|
|
PM_StudioSlerpBones( q3, pos3, q4, pos4, s );
|
|
|
|
s = ( pe->blending[1] * dadt + pe->blending[1] * ( 1.0f - dadt )) / 255.0f;
|
|
PM_StudioSlerpBones( q, pos, q3, pos3, s );
|
|
}
|
|
}
|
|
|
|
pbones = (mstudiobone_t *)((byte *)pm_studiohdr + pm_studiohdr->boneindex);
|
|
|
|
for( i = 0; i < pm_studiohdr->numbones; i++ )
|
|
{
|
|
Matrix4x4_FromOriginQuat( bonematrix, pos[i][0], pos[i][1], pos[i][2], q[i][0], q[i][1], q[i][2], q[i][3] );
|
|
if( pbones[i].parent == -1 )
|
|
Matrix4x4_ConcatTransforms( pm_studiobones[i], pm_studiomatrix, bonematrix );
|
|
else Matrix4x4_ConcatTransforms( pm_studiobones[i], pm_studiobones[pbones[i].parent], bonematrix );
|
|
}
|
|
|
|
pe->sequence = oldseq; // restore original value
|
|
}
|
|
|
|
static qboolean PM_StudioSetupModel( physent_t *pe )
|
|
{
|
|
model_t *mod = pe->studiomodel;
|
|
|
|
if( !mod || !mod->extradata )
|
|
return false;
|
|
|
|
pm_studiohdr = (studiohdr_t *)mod->extradata;
|
|
PM_StudioSetUpTransform( pe );
|
|
PM_StudioSetupBones( pe );
|
|
return true;
|
|
}
|
|
|
|
qboolean PM_StudioExtractBbox( model_t *mod, int sequence, float *mins, float *maxs )
|
|
{
|
|
mstudioseqdesc_t *pseqdesc;
|
|
studiohdr_t *phdr;
|
|
|
|
ASSERT( mod != NULL );
|
|
|
|
if( mod->type != mod_studio || !mod->extradata )
|
|
return false;
|
|
|
|
phdr = (studiohdr_t *)mod->extradata;
|
|
if( !phdr->numhitboxes ) return false;
|
|
|
|
pseqdesc = (mstudioseqdesc_t *)((byte *)phdr + phdr->seqindex);
|
|
|
|
if( sequence < 0 || sequence >= phdr->numseq )
|
|
return false;
|
|
|
|
VectorCopy( pseqdesc[sequence].bbmin, mins );
|
|
VectorCopy( pseqdesc[sequence].bbmax, maxs );
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
================
|
|
PM_ClipBoxToHitbox
|
|
|
|
trace hitbox
|
|
================
|
|
*/
|
|
qboolean PM_ClipBoxToHitbox( pmtrace_t *trace )
|
|
{
|
|
int i;
|
|
mplane_t *p, *clipplane;
|
|
float enterfrac, leavefrac, distfrac;
|
|
float d, d1, d2;
|
|
qboolean getout, startout;
|
|
float f;
|
|
|
|
enterfrac = -1.0f;
|
|
leavefrac = 1.0f;
|
|
clipplane = NULL;
|
|
|
|
getout = false;
|
|
startout = false;
|
|
|
|
for( i = 0; i < 6; i++ )
|
|
{
|
|
p = &pm_hitboxplanes[i];
|
|
|
|
// push the plane out apropriately for mins/maxs
|
|
if( p->type < 3 )
|
|
{
|
|
d1 = trace_startmins[p->type] - p->dist;
|
|
d2 = trace_endmins[p->type] - p->dist;
|
|
}
|
|
else
|
|
{
|
|
switch( p->signbits )
|
|
{
|
|
case 0:
|
|
d1 = p->normal[0]*trace_startmins[0] + p->normal[1]*trace_startmins[1] + p->normal[2]*trace_startmins[2] - p->dist;
|
|
d2 = p->normal[0]*trace_endmins[0] + p->normal[1]*trace_endmins[1] + p->normal[2]*trace_endmins[2] - p->dist;
|
|
break;
|
|
case 1:
|
|
d1 = p->normal[0]*trace_startmaxs[0] + p->normal[1]*trace_startmins[1] + p->normal[2]*trace_startmins[2] - p->dist;
|
|
d2 = p->normal[0]*trace_endmaxs[0] + p->normal[1]*trace_endmins[1] + p->normal[2]*trace_endmins[2] - p->dist;
|
|
break;
|
|
case 2:
|
|
d1 = p->normal[0]*trace_startmins[0] + p->normal[1]*trace_startmaxs[1] + p->normal[2]*trace_startmins[2] - p->dist;
|
|
d2 = p->normal[0]*trace_endmins[0] + p->normal[1]*trace_endmaxs[1] + p->normal[2]*trace_endmins[2] - p->dist;
|
|
break;
|
|
case 3:
|
|
d1 = p->normal[0]*trace_startmaxs[0] + p->normal[1]*trace_startmaxs[1] + p->normal[2]*trace_startmins[2] - p->dist;
|
|
d2 = p->normal[0]*trace_endmaxs[0] + p->normal[1]*trace_endmaxs[1] + p->normal[2]*trace_endmins[2] - p->dist;
|
|
break;
|
|
case 4:
|
|
d1 = p->normal[0]*trace_startmins[0] + p->normal[1]*trace_startmins[1] + p->normal[2]*trace_startmaxs[2] - p->dist;
|
|
d2 = p->normal[0]*trace_endmins[0] + p->normal[1]*trace_endmins[1] + p->normal[2]*trace_endmaxs[2] - p->dist;
|
|
break;
|
|
case 5:
|
|
d1 = p->normal[0]*trace_startmaxs[0] + p->normal[1]*trace_startmins[1] + p->normal[2]*trace_startmaxs[2] - p->dist;
|
|
d2 = p->normal[0]*trace_endmaxs[0] + p->normal[1]*trace_endmins[1] + p->normal[2]*trace_endmaxs[2] - p->dist;
|
|
break;
|
|
case 6:
|
|
d1 = p->normal[0]*trace_startmins[0] + p->normal[1]*trace_startmaxs[1] + p->normal[2]*trace_startmaxs[2] - p->dist;
|
|
d2 = p->normal[0]*trace_endmins[0] + p->normal[1]*trace_endmaxs[1] + p->normal[2]*trace_endmaxs[2] - p->dist;
|
|
break;
|
|
case 7:
|
|
d1 = p->normal[0]*trace_startmaxs[0] + p->normal[1]*trace_startmaxs[1] + p->normal[2]*trace_startmaxs[2] - p->dist;
|
|
d2 = p->normal[0]*trace_endmaxs[0] + p->normal[1]*trace_endmaxs[1] + p->normal[2]*trace_endmaxs[2] - p->dist;
|
|
break;
|
|
default:
|
|
d1 = d2 = 0; // shut up compiler
|
|
break;
|
|
}
|
|
}
|
|
|
|
if( d2 > 0 ) getout = true; // endpoint is not in solid
|
|
if( d1 > 0 ) startout = true;
|
|
|
|
// if completely in front of face, no intersection
|
|
if( d1 > 0 && d2 >= d1 )
|
|
return false;
|
|
|
|
if( d1 <= 0 && d2 <= 0 )
|
|
continue;
|
|
|
|
// crosses face
|
|
d = 1.0f / ( d1 - d2 );
|
|
f = d1 * d;
|
|
|
|
if( d > 0 )
|
|
{
|
|
// enter
|
|
if( f > enterfrac )
|
|
{
|
|
distfrac = d;
|
|
enterfrac = f;
|
|
clipplane = p;
|
|
}
|
|
}
|
|
else if( d < 0 )
|
|
{
|
|
// leave
|
|
if( f < leavefrac )
|
|
leavefrac = f;
|
|
}
|
|
}
|
|
|
|
if( !startout )
|
|
{
|
|
// original point was inside hitbox
|
|
trace->startsolid = true;
|
|
if( !getout ) trace->allsolid = true;
|
|
return true;
|
|
}
|
|
|
|
if( enterfrac - FRAC_EPSILON <= leavefrac )
|
|
{
|
|
if( enterfrac > -1.0f && enterfrac < trace_realfraction )
|
|
{
|
|
if( enterfrac < 0 )
|
|
enterfrac = 0;
|
|
trace_realfraction = enterfrac;
|
|
trace->fraction = enterfrac - DIST_EPSILON * distfrac;
|
|
VectorCopy( clipplane->normal, trace->plane.normal );
|
|
trace->plane.dist = clipplane->dist;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
================
|
|
PM_TestBoxInHitbox
|
|
|
|
test point trace in hibox
|
|
================
|
|
*/
|
|
qboolean PM_TestBoxInHitbox( pmtrace_t *trace )
|
|
{
|
|
int i;
|
|
mplane_t *p;
|
|
|
|
for( i = 0; i < 6; i++ )
|
|
{
|
|
p = &pm_hitboxplanes[i];
|
|
|
|
// push the plane out apropriately for mins/maxs
|
|
// if completely in front of face, no intersection
|
|
if( p->type < 3 )
|
|
{
|
|
if( trace_startmins[p->type] > p->dist )
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
switch( p->signbits )
|
|
{
|
|
case 0:
|
|
if( p->normal[0]*trace_startmins[0] + p->normal[1]*trace_startmins[1] + p->normal[2]*trace_startmins[2] > p->dist )
|
|
return false;
|
|
break;
|
|
case 1:
|
|
if( p->normal[0]*trace_startmaxs[0] + p->normal[1]*trace_startmins[1] + p->normal[2]*trace_startmins[2] > p->dist )
|
|
return false;
|
|
break;
|
|
case 2:
|
|
if( p->normal[0]*trace_startmins[0] + p->normal[1]*trace_startmaxs[1] + p->normal[2]*trace_startmins[2] > p->dist )
|
|
return false;
|
|
break;
|
|
case 3:
|
|
if( p->normal[0]*trace_startmaxs[0] + p->normal[1]*trace_startmaxs[1] + p->normal[2]*trace_startmins[2] > p->dist )
|
|
return false;
|
|
break;
|
|
case 4:
|
|
if( p->normal[0]*trace_startmins[0] + p->normal[1]*trace_startmins[1] + p->normal[2]*trace_startmaxs[2] > p->dist )
|
|
return false;
|
|
break;
|
|
case 5:
|
|
if( p->normal[0]*trace_startmaxs[0] + p->normal[1]*trace_startmins[1] + p->normal[2]*trace_startmaxs[2] > p->dist )
|
|
return false;
|
|
break;
|
|
case 6:
|
|
if( p->normal[0]*trace_startmins[0] + p->normal[1]*trace_startmaxs[1] + p->normal[2]*trace_startmaxs[2] > p->dist )
|
|
return false;
|
|
break;
|
|
case 7:
|
|
if( p->normal[0]*trace_startmaxs[0] + p->normal[1]*trace_startmaxs[1] + p->normal[2]*trace_startmaxs[2] > p->dist )
|
|
return false;
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// inside this hitbox
|
|
trace->fraction = trace_realfraction = 0;
|
|
trace->startsolid = trace->allsolid = true;
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
================
|
|
PM_StudioIntersect
|
|
|
|
testing for potentially intersection of trace and animation bboxes
|
|
================
|
|
*/
|
|
static qboolean PM_StudioIntersect( physent_t *pe, const vec3_t start, vec3_t mins, vec3_t maxs, const vec3_t end )
|
|
{
|
|
vec3_t trace_mins, trace_maxs;
|
|
vec3_t anim_mins, anim_maxs;
|
|
|
|
// create the bounding box of the entire move
|
|
World_MoveBounds( start, mins, maxs, end, trace_mins, trace_maxs );
|
|
|
|
if( !PM_StudioExtractBbox( pe->studiomodel, pe->sequence, anim_mins, anim_maxs ))
|
|
return false; // invalid sequence
|
|
|
|
if( !VectorIsNull( pe->angles ))
|
|
{
|
|
// expand for rotation
|
|
float max, v;
|
|
int i;
|
|
|
|
for( i = 0, max = 0.0f; i < 3; i++ )
|
|
{
|
|
v = fabs( anim_mins[i] );
|
|
if( v > max ) max = v;
|
|
v = fabs( anim_maxs[i] );
|
|
if( v > max ) max = v;
|
|
}
|
|
|
|
for( i = 0; i < 3; i++ )
|
|
{
|
|
anim_mins[i] = pe->origin[i] - max;
|
|
anim_maxs[i] = pe->origin[i] + max;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
VectorAdd( anim_mins, pe->origin, anim_mins );
|
|
VectorAdd( anim_maxs, pe->origin, anim_maxs );
|
|
}
|
|
|
|
// check intersection with trace entire move and animation bbox
|
|
return BoundsIntersect( trace_mins, trace_maxs, anim_mins, anim_maxs );
|
|
}
|
|
|
|
qboolean PM_StudioTrace( physent_t *pe, const vec3_t start, vec3_t mins, vec3_t maxs, const vec3_t end, pmtrace_t *ptr )
|
|
{
|
|
vec3_t start_l, end_l;
|
|
int i, outBone = -1;
|
|
pfnTrace StudioTrace = NULL;
|
|
|
|
// assume we didn't hit anything
|
|
Mem_Set( ptr, 0, sizeof( pmtrace_t ));
|
|
VectorCopy( end, ptr->endpos );
|
|
ptr->fraction = trace_realfraction = 1.0f;
|
|
ptr->hitgroup = -1;
|
|
ptr->ent = -1;
|
|
|
|
if( !PM_StudioIntersect( pe, start, mins, maxs, end ))
|
|
return false;
|
|
|
|
if( !PM_StudioSetupModel( pe ))
|
|
return false;
|
|
|
|
if( VectorCompare( start, end ))
|
|
StudioTrace = PM_TestBoxInHitbox;
|
|
else StudioTrace = PM_ClipBoxToHitbox;
|
|
|
|
// go to check individual hitboxes
|
|
for( i = 0; i < pm_studiohdr->numhitboxes; i++ )
|
|
{
|
|
mstudiobbox_t *phitbox = (mstudiobbox_t *)((byte*)pm_studiohdr + pm_studiohdr->hitboxindex) + i;
|
|
matrix4x4 bonemat;
|
|
|
|
// transform traceline into local bone space
|
|
Matrix4x4_Invert_Simple( bonemat, pm_studiobones[phitbox->bone] );
|
|
Matrix4x4_VectorTransform( bonemat, start, start_l );
|
|
Matrix4x4_VectorTransform( bonemat, end, end_l );
|
|
|
|
PM_HullForHitbox( phitbox->bbmin, phitbox->bbmax );
|
|
|
|
VectorAdd( start_l, mins, trace_startmins );
|
|
VectorAdd( start_l, maxs, trace_startmaxs );
|
|
VectorAdd( end_l, mins, trace_endmins );
|
|
VectorAdd( end_l, maxs, trace_endmaxs );
|
|
|
|
if( StudioTrace( ptr ))
|
|
{
|
|
outBone = phitbox->bone;
|
|
ptr->hitgroup = phitbox->group;
|
|
}
|
|
|
|
if( ptr->allsolid )
|
|
break;
|
|
}
|
|
|
|
// all hitboxes were swept, get trace result
|
|
if( outBone >= 0 )
|
|
{
|
|
vec3_t temp;
|
|
|
|
VectorCopy( ptr->plane.normal, temp );
|
|
ptr->fraction = bound( 0, ptr->fraction, 1.0f );
|
|
VectorLerp( start, ptr->fraction, end, ptr->endpos );
|
|
Matrix4x4_TransformPositivePlane( pm_studiobones[outBone], temp, ptr->plane.dist, ptr->plane.normal, &ptr->plane.dist );
|
|
return true;
|
|
}
|
|
return false;
|
|
} |