495 lines
9.4 KiB
495 lines
9.4 KiB
/* |
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cl_events.c - client-side event system implementation |
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Copyright (C) 2011 Uncle Mike |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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*/ |
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#include "common.h" |
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#include "client.h" |
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#include "event_flags.h" |
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#include "net_encode.h" |
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#include "con_nprint.h" |
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/* |
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=============== |
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CL_ResetEvent |
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=============== |
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*/ |
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void CL_ResetEvent( event_info_t *ei ) |
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{ |
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ei->index = 0; |
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memset( &ei->args, 0, sizeof( ei->args )); |
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ei->fire_time = 0.0; |
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ei->flags = 0; |
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} |
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/* |
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============= |
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CL_CalcPlayerVelocity |
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compute velocity for a given client |
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============= |
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*/ |
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void CL_CalcPlayerVelocity( int idx, vec3_t velocity ) |
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{ |
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clientdata_t *pcd; |
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vec3_t delta; |
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double dt; |
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VectorClear( velocity ); |
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if( idx <= 0 || idx > cl.maxclients ) |
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return; |
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if( idx == cl.playernum + 1 ) |
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{ |
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pcd = &cl.frames[cl.parsecountmod].clientdata; |
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VectorCopy( pcd->velocity, velocity ); |
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} |
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else |
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{ |
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dt = clgame.entities[idx].curstate.animtime - clgame.entities[idx].prevstate.animtime; |
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if( dt != 0.0 ) |
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{ |
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VectorSubtract( clgame.entities[idx].curstate.velocity, clgame.entities[idx].prevstate.velocity, delta ); |
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VectorScale( delta, 1.0 / dt, velocity ); |
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} |
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else |
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{ |
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VectorCopy( clgame.entities[idx].curstate.velocity, velocity ); |
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} |
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} |
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} |
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/* |
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============= |
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CL_DescribeEvent |
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============= |
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*/ |
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void CL_DescribeEvent( int slot, int flags, const char *eventname ) |
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{ |
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int idx = (slot & 31); |
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con_nprint_t info; |
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if( !eventname || !cl_showevents->value ) |
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return; |
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// mark reliable as green and unreliable as red |
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if( FBitSet( flags, FEV_RELIABLE )) |
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VectorSet( info.color, 0.0f, 1.0f, 0.0f ); |
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else VectorSet( info.color, 1.0f, 0.0f, 0.0f ); |
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info.time_to_live = 0.5f; |
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info.index = idx; |
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Con_NXPrintf( &info, "%i %f %s", slot, cl.time, eventname ); |
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} |
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/* |
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============= |
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CL_SetEventIndex |
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============= |
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*/ |
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void CL_SetEventIndex( const char *szEvName, int ev_index ) |
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{ |
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cl_user_event_t *ev; |
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int i; |
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if( !szEvName || !*szEvName ) |
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return; // ignore blank names |
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// search event by name to link with |
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for( i = 0; i < MAX_EVENTS; i++ ) |
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{ |
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ev = clgame.events[i]; |
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if( !ev ) break; |
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if( !Q_stricmp( ev->name, szEvName )) |
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{ |
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ev->index = ev_index; |
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return; |
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} |
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} |
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} |
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/* |
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============= |
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CL_EventIndex |
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============= |
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*/ |
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word CL_EventIndex( const char *name ) |
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{ |
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int i; |
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if( !COM_CheckString( name )) |
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return 0; |
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for( i = 1; i < MAX_EVENTS && cl.event_precache[i][0]; i++ ) |
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{ |
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if( !Q_stricmp( cl.event_precache[i], name )) |
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return i; |
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} |
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return 0; |
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} |
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/* |
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============= |
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CL_RegisterEvent |
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============= |
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*/ |
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void CL_RegisterEvent( int lastnum, const char *szEvName, pfnEventHook func ) |
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{ |
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cl_user_event_t *ev; |
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if( lastnum == MAX_EVENTS ) |
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return; |
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// clear existing or allocate new one |
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if( !clgame.events[lastnum] ) |
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clgame.events[lastnum] = Mem_Calloc( cls.mempool, sizeof( cl_user_event_t )); |
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else memset( clgame.events[lastnum], 0, sizeof( cl_user_event_t )); |
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ev = clgame.events[lastnum]; |
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// NOTE: ev->index will be set later |
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Q_strncpy( ev->name, szEvName, MAX_QPATH ); |
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ev->func = func; |
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} |
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/* |
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============= |
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CL_FireEvent |
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============= |
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*/ |
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qboolean CL_FireEvent( event_info_t *ei, int slot ) |
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{ |
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cl_user_event_t *ev; |
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const char *name; |
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int i, idx; |
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if( !ei || !ei->index ) |
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return false; |
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// get the func pointer |
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for( i = 0; i < MAX_EVENTS; i++ ) |
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{ |
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ev = clgame.events[i]; |
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if( !ev ) |
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{ |
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idx = bound( 1, ei->index, ( MAX_EVENTS - 1 )); |
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Con_Reportf( S_ERROR "CL_FireEvent: %s not precached\n", cl.event_precache[idx] ); |
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break; |
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} |
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if( ev->index == ei->index ) |
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{ |
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if( ev->func ) |
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{ |
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CL_DescribeEvent( slot, ei->flags, cl.event_precache[ei->index] ); |
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ev->func( &ei->args ); |
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return true; |
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} |
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name = cl.event_precache[ei->index]; |
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Con_Reportf( S_ERROR "CL_FireEvent: %s not hooked\n", name ); |
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break; |
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} |
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} |
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return false; |
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} |
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/* |
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============= |
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CL_FireEvents |
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called right before draw frame |
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============= |
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*/ |
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void CL_FireEvents( void ) |
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{ |
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event_state_t *es; |
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event_info_t *ei; |
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int i; |
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es = &cl.events; |
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for( i = 0; i < MAX_EVENT_QUEUE; i++ ) |
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{ |
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ei = &es->ei[i]; |
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if( ei->index == 0 ) |
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continue; |
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// delayed event! |
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if( ei->fire_time && ( ei->fire_time > cl.time )) |
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continue; |
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CL_FireEvent( ei, i ); |
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// zero out the remaining fields |
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CL_ResetEvent( ei ); |
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} |
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} |
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/* |
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============= |
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CL_FindEvent |
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find first empty event |
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============= |
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*/ |
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event_info_t *CL_FindEmptyEvent( void ) |
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{ |
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int i; |
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event_state_t *es; |
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event_info_t *ei; |
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es = &cl.events; |
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// look for first slot where index is != 0 |
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for( i = 0; i < MAX_EVENT_QUEUE; i++ ) |
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{ |
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ei = &es->ei[i]; |
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if( ei->index != 0 ) |
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continue; |
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return ei; |
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} |
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// no slots available |
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return NULL; |
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} |
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/* |
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============= |
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CL_FindEvent |
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replace only unreliable events |
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============= |
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*/ |
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event_info_t *CL_FindUnreliableEvent( void ) |
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{ |
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event_state_t *es; |
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event_info_t *ei; |
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int i; |
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es = &cl.events; |
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for ( i = 0; i < MAX_EVENT_QUEUE; i++ ) |
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{ |
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ei = &es->ei[i]; |
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if( ei->index != 0 ) |
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{ |
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// it's reliable, so skip it |
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if( FBitSet( ei->flags, FEV_RELIABLE )) |
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continue; |
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} |
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return ei; |
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} |
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// this should never happen |
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return NULL; |
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} |
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/* |
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============= |
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CL_QueueEvent |
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============= |
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*/ |
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void CL_QueueEvent( int flags, int index, float delay, event_args_t *args ) |
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{ |
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event_info_t *ei; |
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// find a normal slot |
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ei = CL_FindEmptyEvent(); |
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if( !ei ) |
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{ |
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if( FBitSet( flags, FEV_RELIABLE )) |
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{ |
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ei = CL_FindUnreliableEvent(); |
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} |
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if( !ei ) return; |
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} |
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ei->index = index; |
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ei->packet_index = 0; |
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ei->fire_time = delay ? (cl.time + delay) : 0.0f; |
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ei->flags = flags; |
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ei->args = *args; |
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} |
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/* |
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============= |
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CL_ParseReliableEvent |
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============= |
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*/ |
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void CL_ParseReliableEvent( sizebuf_t *msg ) |
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{ |
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int event_index; |
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event_args_t nullargs, args; |
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float delay = 0.0f; |
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memset( &nullargs, 0, sizeof( nullargs )); |
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event_index = MSG_ReadUBitLong( msg, MAX_EVENT_BITS ); |
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if( MSG_ReadOneBit( msg )) |
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delay = (float)MSG_ReadWord( msg ) * (1.0f / 100.0f); |
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// reliable events not use delta-compression just null-compression |
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MSG_ReadDeltaEvent( msg, &nullargs, &args ); |
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if( args.entindex > 0 && args.entindex <= cl.maxclients ) |
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args.angles[PITCH] *= -3.0f; |
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CL_QueueEvent( FEV_RELIABLE|FEV_SERVER, event_index, delay, &args ); |
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} |
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/* |
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============= |
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CL_ParseEvent |
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============= |
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*/ |
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void CL_ParseEvent( sizebuf_t *msg ) |
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{ |
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int event_index; |
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int i, num_events; |
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int packet_index; |
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event_args_t nullargs, args; |
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entity_state_t *state; |
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float delay; |
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memset( &nullargs, 0, sizeof( nullargs )); |
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memset( &args, 0, sizeof( args )); |
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num_events = MSG_ReadUBitLong( msg, 5 ); |
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// parse events queue |
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for( i = 0 ; i < num_events; i++ ) |
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{ |
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event_index = MSG_ReadUBitLong( msg, MAX_EVENT_BITS ); |
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if( MSG_ReadOneBit( msg )) |
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packet_index = MSG_ReadUBitLong( msg, cls.legacymode ? MAX_LEGACY_ENTITY_BITS : MAX_ENTITY_BITS ); |
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else packet_index = -1; |
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if( MSG_ReadOneBit( msg )) |
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{ |
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MSG_ReadDeltaEvent( msg, &nullargs, &args ); |
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} |
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if( MSG_ReadOneBit( msg )) |
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delay = (float)MSG_ReadWord( msg ) * (1.0f / 100.0f); |
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else delay = 0.0f; |
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if( packet_index != -1 ) |
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{ |
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frame_t *frame = &cl.frames[cl.parsecountmod]; |
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if( packet_index < frame->num_entities ) |
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{ |
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state = &cls.packet_entities[(frame->first_entity+packet_index)%cls.num_client_entities]; |
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args.entindex = state->number; |
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if( VectorIsNull( args.origin )) |
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VectorCopy( state->origin, args.origin ); |
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if( VectorIsNull( args.angles )) |
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VectorCopy( state->angles, args.angles ); |
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COM_NormalizeAngles( args.angles ); |
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if( state->number > 0 && state->number <= cl.maxclients ) |
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{ |
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args.angles[PITCH] *= -3.0f; |
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CL_CalcPlayerVelocity( state->number, args.velocity ); |
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args.ducking = ( state->usehull == 1 ); |
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} |
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} |
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else |
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{ |
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if( args.entindex != 0 ) |
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{ |
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if( args.entindex > 0 && args.entindex <= cl.maxclients ) |
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args.angles[PITCH] /= -3.0f; |
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} |
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} |
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// Place event on queue |
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CL_QueueEvent( FEV_SERVER, event_index, delay, &args ); |
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} |
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} |
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} |
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/* |
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============= |
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CL_PlaybackEvent |
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============= |
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*/ |
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void CL_PlaybackEvent( int flags, const edict_t *pInvoker, word eventindex, float delay, float *origin, |
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float *angles, float fparam1, float fparam2, int iparam1, int iparam2, int bparam1, int bparam2 ) |
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{ |
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event_args_t args; |
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if( FBitSet( flags, FEV_SERVER )) |
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return; |
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// first check event for out of bounds |
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if( eventindex < 1 || eventindex > MAX_EVENTS ) |
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{ |
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Con_DPrintf( S_ERROR "CL_PlaybackEvent: invalid eventindex %i\n", eventindex ); |
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return; |
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} |
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// check event for precached |
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if( !CL_EventIndex( cl.event_precache[eventindex] )) |
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{ |
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Con_DPrintf( S_ERROR "CL_PlaybackEvent: event %i was not precached\n", eventindex ); |
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return; |
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} |
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SetBits( flags, FEV_CLIENT ); // it's a client event |
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ClearBits( flags, FEV_NOTHOST|FEV_HOSTONLY|FEV_GLOBAL ); |
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if( delay < 0.0f ) delay = 0.0f; // fixup negative delays |
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memset( &args, 0, sizeof( args )); |
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VectorCopy( origin, args.origin ); |
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VectorCopy( angles, args.angles ); |
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VectorCopy( cl.simvel, args.velocity ); |
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args.entindex = cl.playernum + 1; |
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args.ducking = ( cl.local.usehull == 1 ); |
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args.fparam1 = fparam1; |
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args.fparam2 = fparam2; |
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args.iparam1 = iparam1; |
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args.iparam2 = iparam2; |
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args.bparam1 = bparam1; |
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args.bparam2 = bparam2; |
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CL_QueueEvent( flags, eventindex, delay, &args ); |
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}
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