diff options
Diffstat (limited to 'cheat/gmod/prediction.cpp')
| -rw-r--r-- | cheat/gmod/prediction.cpp | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/cheat/gmod/prediction.cpp b/cheat/gmod/prediction.cpp new file mode 100644 index 0000000..ebfea5b --- /dev/null +++ b/cheat/gmod/prediction.cpp @@ -0,0 +1,111 @@ +#include "prediction.hpp"
+#include "hooks.hpp"
+#include "context.hpp"
+
+NAMESPACE_REGION( features )
+
+void c_prediction::predict_player( c_base_player* player ) {
+ static uintptr_t run_command_address = g_gmod.m_prediction->get_old_function< uintptr_t >( 17 );
+ static uintptr_t set_prediction_random_seed_address = ( run_command_address + 0x21 + 4 + *( uintptr_t* )( run_command_address + 0x21 ) );
+
+
+ CMoveData move_data{ };
+ auto ce = player->ce( );
+
+ float old_curtime = g_gmod.m_globals->m_curtime;
+ float old_frametime = g_gmod.m_globals->m_frametime;
+
+ int backup_tickbase = player->m_nTickBase( );
+ int backup_simtime = player->m_flSimulationTime( );
+
+
+ //random seed is already being calculated and set in createmove
+ **( uintptr_t** )( set_prediction_random_seed_address + 0xC ) = g_ctx.get_last_cmd( )->m_random_seed; //prediction seed
+ **( uintptr_t** )( run_command_address + 0x2F ) = uintptr_t( g_ctx.m_local ); //prediction player
+
+ //start prediction
+ g_gmod.m_game_movement( )->StartTrackPredictionErrors( ce );
+
+ //run prediction
+ g_gmod.m_prediction( )->SetupMove( ce, *player->get< user_cmd_t** >( 0x24B0 ), g_gmod.m_move_helper( ), &move_data );
+ g_gmod.m_game_movement( )->ProcessMovement( ce, &move_data );
+ g_gmod.m_prediction( )->FinishMove( ce, *player->get< user_cmd_t** >( 0x24B0 ), &move_data );
+
+ //finish prediction
+ g_gmod.m_game_movement( )->FinishTrackPredictionErrors( ce );
+
+ **( uintptr_t** )( set_prediction_random_seed_address + 0xC ) = 0xffffffff;
+ **( uintptr_t*** )( run_command_address + 0x2F ) = nullptr;
+
+ player->m_nTickBase( ) = backup_tickbase;
+ player->m_flSimulationTime( ) = backup_simtime;
+
+ g_gmod.m_globals->m_curtime = old_curtime;
+ g_gmod.m_globals->m_frametime = old_frametime;
+}
+
+void c_prediction::run( user_cmd_t* ucmd ) {
+ if ( !ucmd || !g_ctx.m_local || !g_ctx.m_local->is_alive( ) )
+ return;
+
+ static uintptr_t run_command_address = g_gmod.m_prediction->get_old_function< uintptr_t >( 17 );
+ static uintptr_t relative_call_addr = run_command_address + 0x21;
+ static uintptr_t set_prediction_random_seed_address = ( relative_call_addr + 4 + *( uintptr_t* )( relative_call_addr ) );
+
+ static auto sv_footsteps = g_gmod.m_cvar( )->FindVar( "sv_footsteps" );
+
+ CMoveData move_data{ };
+ IClientEntity* local_ent = g_ctx.m_local->ce( );
+
+ //backup data
+ int old_buttons = ucmd->m_buttons;
+ float old_curtime = g_gmod.m_globals->m_curtime;
+ float old_frame_time = g_gmod.m_globals->m_frametime;
+ int old_tickbase = g_ctx.m_local->m_nTickBase( );
+ int old_flags = g_ctx.m_local->m_fFlags( );
+ MoveType_t old_move_type = g_ctx.m_local->m_nMoveType( );
+ vec3_t old_velocity = g_ctx.m_local->m_vecVelocity( );
+ int old_sv_flags = sv_footsteps->m_flags;
+
+ sv_footsteps->m_flags = 0;
+ sv_footsteps->m_nvalue = 0;
+
+ //set globals
+ g_gmod.m_globals->m_curtime = g_gmod.m_globals->m_interval_per_tick * old_tickbase;
+ g_gmod.m_globals->m_frametime = g_gmod.m_globals->m_interval_per_tick;
+
+ //random seed is already being calculated and set in createmove
+ **( uintptr_t** )( set_prediction_random_seed_address + 0xC ) = ucmd->m_random_seed; //prediction seed
+ **( uintptr_t** )( run_command_address + 0x2F ) = uintptr_t( g_ctx.m_local ); //prediction player
+
+ //start prediction
+ g_gmod.m_game_movement( )->StartTrackPredictionErrors( local_ent );
+
+ //run prediction
+ g_gmod.m_prediction( )->SetupMove( local_ent, ucmd, nullptr, &move_data );
+ g_gmod.m_game_movement( )->ProcessMovement( local_ent, &move_data );
+ g_gmod.m_prediction( )->FinishMove( local_ent, ucmd, &move_data );
+
+ //finish prediction
+ g_gmod.m_game_movement( )->FinishTrackPredictionErrors( local_ent );
+
+ **( uintptr_t** )( set_prediction_random_seed_address + 0xC ) = 0xffffffff;
+ **( uintptr_t*** )( run_command_address + 0x2F ) = nullptr;
+
+ //good to have, can be used for edge jump and such
+ m_predicted_flags = g_ctx.m_local->m_fFlags( );
+
+ //restore
+ ucmd->m_buttons = old_buttons;
+ g_gmod.m_globals->m_curtime = old_curtime;
+ g_gmod.m_globals->m_frametime = old_frame_time;
+ g_ctx.m_local->m_nTickBase( ) = old_tickbase;
+ g_ctx.m_local->m_fFlags( ) = old_flags;
+ g_ctx.m_local->m_nMoveType( ) = old_move_type;
+ g_ctx.m_local->m_vecVelocity( ) = old_velocity;
+
+ sv_footsteps->m_nvalue = 1;
+ sv_footsteps->m_flags = old_sv_flags;
+}
+
+END_REGION
\ No newline at end of file |