From e5ff1d3d4bc01d98b12d05f9cb85457c7f15c424 Mon Sep 17 00:00:00 2001 From: IronClawTrem Date: Tue, 6 Aug 2019 02:17:23 +0100 Subject: first commit --- src/cgame/cg_attachment.c | 404 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 404 insertions(+) create mode 100644 src/cgame/cg_attachment.c (limited to 'src/cgame/cg_attachment.c') diff --git a/src/cgame/cg_attachment.c b/src/cgame/cg_attachment.c new file mode 100644 index 0000000..0d3c8ea --- /dev/null +++ b/src/cgame/cg_attachment.c @@ -0,0 +1,404 @@ +/* +=========================================================================== +Copyright (C) 2000-2006 Tim Angus + +This file is part of Tremulous. + +Tremulous is free software; you can redistribute it +and/or modify it under the terms of the GNU General Public License as +published by the Free Software Foundation; either version 2 of the License, +or (at your option) any later version. + +Tremulous is distributed in the hope that it will be +useful, but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with Tremulous; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +=========================================================================== +*/ + +// cg_attachment.c -- an abstract attachment system + +#include "cg_local.h" + +/* +=============== +CG_AttachmentPoint + +Return the attachment point +=============== +*/ +qboolean CG_AttachmentPoint( attachment_t *a, vec3_t v ) +{ + centity_t *cent; + + if( !a ) + return qfalse; + + // if it all breaks, then use the last point we know was correct + VectorCopy( a->lastValidAttachmentPoint, v ); + + switch( a->type ) + { + case AT_STATIC: + if( !a->staticValid ) + return qfalse; + + VectorCopy( a->origin, v ); + break; + + case AT_TAG: + if( !a->tagValid ) + return qfalse; + + AxisCopy( axisDefault, a->re.axis ); + CG_PositionRotatedEntityOnTag( &a->re, &a->parent, + a->model, a->tagName ); + VectorCopy( a->re.origin, v ); + break; + + case AT_CENT: + if( !a->centValid ) + return qfalse; + + if( a->centNum == cg.predictedPlayerState.clientNum ) + { + // this is smoother if it's the local client + VectorCopy( cg.predictedPlayerState.origin, v ); + } + else + { + cent = &cg_entities[ a->centNum ]; + VectorCopy( cent->lerpOrigin, v ); + } + break; + + case AT_PARTICLE: + if( !a->particleValid ) + return qfalse; + + if( !a->particle->valid ) + { + a->particleValid = qfalse; + return qfalse; + } + else + VectorCopy( a->particle->origin, v ); + break; + + default: + CG_Printf( S_COLOR_RED "ERROR: Invalid attachmentType_t in attachment\n" ); + break; + } + + if( a->hasOffset ) + VectorAdd( v, a->offset, v ); + + VectorCopy( v, a->lastValidAttachmentPoint ); + + return qtrue; +} + +/* +=============== +CG_AttachmentDir + +Return the attachment direction +=============== +*/ +qboolean CG_AttachmentDir( attachment_t *a, vec3_t v ) +{ + vec3_t forward; + centity_t *cent; + + if( !a ) + return qfalse; + + switch( a->type ) + { + case AT_STATIC: + return qfalse; + break; + + case AT_TAG: + if( !a->tagValid ) + return qfalse; + + VectorCopy( a->re.axis[ 0 ], v ); + break; + + case AT_CENT: + if( !a->centValid ) + return qfalse; + + cent = &cg_entities[ a->centNum ]; + AngleVectors( cent->lerpAngles, forward, NULL, NULL ); + VectorCopy( forward, v ); + break; + + case AT_PARTICLE: + if( !a->particleValid ) + return qfalse; + + if( !a->particle->valid ) + { + a->particleValid = qfalse; + return qfalse; + } + else + VectorCopy( a->particle->velocity, v ); + break; + + default: + CG_Printf( S_COLOR_RED "ERROR: Invalid attachmentType_t in attachment\n" ); + break; + } + + VectorNormalize( v ); + return qtrue; +} + +/* +=============== +CG_AttachmentAxis + +Return the attachment axis +=============== +*/ +qboolean CG_AttachmentAxis( attachment_t *a, vec3_t axis[ 3 ] ) +{ + centity_t *cent; + + if( !a ) + return qfalse; + + switch( a->type ) + { + case AT_STATIC: + return qfalse; + break; + + case AT_TAG: + if( !a->tagValid ) + return qfalse; + + AxisCopy( a->re.axis, axis ); + break; + + case AT_CENT: + if( !a->centValid ) + return qfalse; + + cent = &cg_entities[ a->centNum ]; + AnglesToAxis( cent->lerpAngles, axis ); + break; + + case AT_PARTICLE: + return qfalse; + break; + + default: + CG_Printf( S_COLOR_RED "ERROR: Invalid attachmentType_t in attachment\n" ); + break; + } + + return qtrue; +} + +/* +=============== +CG_AttachmentVelocity + +If the attachment can have velocity, return it +=============== +*/ +qboolean CG_AttachmentVelocity( attachment_t *a, vec3_t v ) +{ + if( !a ) + return qfalse; + + if( a->particleValid && a->particle->valid ) + { + VectorCopy( a->particle->velocity, v ); + return qtrue; + } + else if( a->centValid ) + { + centity_t *cent = &cg_entities[ a->centNum ]; + + VectorCopy( cent->currentState.pos.trDelta, v ); + return qtrue; + } + + return qfalse; +} + +/* +=============== +CG_AttachmentCentNum + +If the attachment has a centNum, return it +=============== +*/ +int CG_AttachmentCentNum( attachment_t *a ) +{ + if( !a || !a->centValid ) + return -1; + + return a->centNum; +} + +/* +=============== +CG_Attached + +If the attachment is valid, return qtrue +=============== +*/ +qboolean CG_Attached( attachment_t *a ) +{ + if( !a ) + return qfalse; + + return a->attached; +} + +/* +=============== +CG_AttachToPoint + +Attach to a point in space +=============== +*/ +void CG_AttachToPoint( attachment_t *a ) +{ + if( !a || !a->staticValid ) + return; + + a->type = AT_STATIC; + a->attached = qtrue; +} + +/* +=============== +CG_AttachToCent + +Attach to a centity_t +=============== +*/ +void CG_AttachToCent( attachment_t *a ) +{ + if( !a || !a->centValid ) + return; + + a->type = AT_CENT; + a->attached = qtrue; +} + +/* +=============== +CG_AttachToTag + +Attach to a model tag +=============== +*/ +void CG_AttachToTag( attachment_t *a ) +{ + if( !a || !a->tagValid ) + return; + + a->type = AT_TAG; + a->attached = qtrue; +} + +/* +=============== +CG_AttachToParticle + +Attach to a particle +=============== +*/ +void CG_AttachToParticle( attachment_t *a ) +{ + if( !a || !a->particleValid ) + return; + + a->type = AT_PARTICLE; + a->attached = qtrue; +} + +/* +=============== +CG_SetAttachmentPoint +=============== +*/ +void CG_SetAttachmentPoint( attachment_t *a, vec3_t v ) +{ + if( !a ) + return; + + VectorCopy( v, a->origin ); + a->staticValid = qtrue; +} + +/* +=============== +CG_SetAttachmentCent +=============== +*/ +void CG_SetAttachmentCent( attachment_t *a, centity_t *cent ) +{ + if( !a || !cent ) + return; + + a->centNum = cent->currentState.number; + a->centValid = qtrue; +} + +/* +=============== +CG_SetAttachmentTag +=============== +*/ +void CG_SetAttachmentTag( attachment_t *a, refEntity_t parent, + qhandle_t model, char *tagName ) +{ + if( !a ) + return; + + a->parent = parent; + a->model = model; + strncpy( a->tagName, tagName, MAX_STRING_CHARS ); + a->tagValid = qtrue; +} + +/* +=============== +CG_SetAttachmentParticle +=============== +*/ +void CG_SetAttachmentParticle( attachment_t *a, particle_t *p ) +{ + if( !a ) + return; + + a->particle = p; + a->particleValid = qtrue; +} + +/* +=============== +CG_SetAttachmentOffset +=============== +*/ +void CG_SetAttachmentOffset( attachment_t *a, vec3_t v ) +{ + if( !a ) + return; + + VectorCopy( v, a->offset ); + a->hasOffset = qtrue; +} -- cgit