//==========================================
// AI_SpecialMove
// Handle special cases of crouch/jump
// If the move is resolved here, this function returns true.
//==========================================
qboolean AI_SpecialMove(edict_t *self, usercmd_t *ucmd)
{
vec3_t forward;
trace_t tr;
vec3_t boxmins, boxmaxs, boxorigin;
// Get current direction
AngleVectors( tv(0, self->s.angles[YAW], 0), forward, NULL, NULL );
//make sure we are bloqued
VectorCopy( self->s.origin, boxorigin );
VectorMA( boxorigin, 8, forward, boxorigin ); //move box by 8 to front
tr = gi.trace( self->s.origin, self->mins, self->maxs, boxorigin, self, MASK_AISOLID);
if( !tr.startsolid && tr.fraction == 1.0 ) // not bloqued
return false;
if( self->ai.pers.moveTypesMask & LINK_CROUCH || self->ai.is_swim )
{
//crouch box
VectorCopy( self->s.origin, boxorigin );
VectorCopy( self->mins, boxmins );
VectorCopy( self->maxs, boxmaxs );
boxmaxs[2] = 14; //crouched size
VectorMA( boxorigin, 8, forward, boxorigin ); //move box by 8 to front
//see if bloqued
tr = gi.trace( boxorigin, boxmins, boxmaxs, boxorigin, self, MASK_AISOLID);
if( !tr.startsolid ) // can move by crouching
{
ucmd->forwardmove = 400;
ucmd->upmove = -400;
return true;
}
}
if( self->ai.pers.moveTypesMask & LINK_JUMP && self->groundentity )
{
//jump box
VectorCopy( self->s.origin, boxorigin );
VectorCopy( self->mins, boxmins );
VectorCopy( self->maxs, boxmaxs );
VectorMA( boxorigin, 8, forward, boxorigin ); //move box by 8 to front
//
boxorigin[2] += ( boxmins[2] + AI_JUMPABLE_HEIGHT ); //put at bottom + jumpable height
boxmaxs[2] = boxmaxs[2] - boxmins[2]; //total player box height in boxmaxs
boxmins[2] = 0;
if( boxmaxs[2] > AI_JUMPABLE_HEIGHT ) //the player is smaller than AI_JUMPABLE_HEIGHT
{
boxmaxs[2] -= AI_JUMPABLE_HEIGHT;
tr = gi.trace( boxorigin, boxmins, boxmaxs, boxorigin, self, MASK_AISOLID);
if( !tr.startsolid ) //can move by jumping
{
ucmd->forwardmove = 400;
ucmd->upmove = 400;
return true;
}
}
}
//nothing worked, check for turning
return AI_CheckEyes(self, ucmd);
}
//==========================================
// AI_SpecialMove
// Handle special cases of crouch/jump
// If the move is resolved here, this function returns qtrue.
//==========================================
qboolean AI_SpecialMove( edict_t *self, usercmd_t *ucmd )
{
vec3_t forward;
trace_t tr;
vec3_t boxmins, boxmaxs, boxorigin;
// Get current direction
AngleVectors( tv( 0, self->s.angles[YAW], 0 ), forward, NULL, NULL );
// make sure we are blocked
VectorCopy( self->s.origin, boxorigin );
VectorMA( boxorigin, 8, forward, boxorigin ); //move box by 8 to front
G_Trace( &tr, self->s.origin, self->r.mins, self->r.maxs, boxorigin, self, MASK_AISOLID );
if( !tr.startsolid && tr.fraction == 1.0 ) // not blocked
return qfalse;
//ramps
if( ISWALKABLEPLANE( &tr.plane ) )
return qfalse;
if( self->ai.status.moveTypesMask & LINK_CROUCH || self->is_swim )
{
// crouch box
VectorCopy( self->s.origin, boxorigin );
VectorCopy( self->r.mins, boxmins );
VectorCopy( self->r.maxs, boxmaxs );
boxmaxs[2] = 14; // crouched size
VectorMA( boxorigin, 8, forward, boxorigin ); // move box by 8 to front
// see if blocked
G_Trace( &tr, boxorigin, boxmins, boxmaxs, boxorigin, self, MASK_AISOLID );
if( !tr.startsolid ) // can move by crouching
{
ucmd->forwardmove = 1;
ucmd->upmove = -1;
return qtrue;
}
}
if( self->ai.status.moveTypesMask & LINK_JUMP && self->groundentity )
{
// jump box
VectorCopy( self->s.origin, boxorigin );
VectorCopy( self->r.mins, boxmins );
VectorCopy( self->r.maxs, boxmaxs );
VectorMA( boxorigin, 8, forward, boxorigin ); // move box by 8 to front
//
boxorigin[2] += ( boxmins[2] + AI_JUMPABLE_HEIGHT ); // put at bottom + jumpable height
boxmaxs[2] = boxmaxs[2] - boxmins[2]; // total player box height in boxmaxs
boxmins[2] = 0;
G_Trace( &tr, boxorigin, boxmins, boxmaxs, boxorigin, self, MASK_AISOLID );
if( !tr.startsolid ) // can move by jumping
{
ucmd->forwardmove = 1;
ucmd->upmove = 1;
return qtrue;
}
}
// nothing worked, check for turning
return AI_CheckEyes( self, ucmd );
}
