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1 files changed, 305 insertions, 0 deletions

diff --git a/gmod/autowall.cpp b/gmod/autowall.cpp
new file mode 100644
index 0000000..d94afbc
--- /dev/null
+++ b/gmod/autowall.cpp
@@ -0,0 +1,305 @@
+#include <algorithm>

+

+#include "autowall.hpp"

+#include "settings.hpp"

+#include "context.hpp"

+#include "math.hpp"

+

+namespace features

+{

+	bool c_autowall::is_armored( c_base_player* ent, int armor_value, int hitgroup ) {

+		if ( armor_value <= 0 ) return false;

+

+		switch ( hitgroup ) {

+		case HITGROUP_GENERIC:

+		case HITGROUP_CHEST:

+		case HITGROUP_STOMACH:

+		case HITGROUP_LEFTARM:

+		case HITGROUP_RIGHTARM:

+			return true;

+		case HITGROUP_HEAD:

+			return ent->m_bHasHelmet( );

+		}

+

+		return false;

+	}

+

+	void c_autowall::trace_line( const vec3_t& start, const vec3_t& end, unsigned mask, void* ignore, CGameTrace* tr ) {

+		CTraceFilter filter;

+		Ray_t		 ray;

+

+		filter.pSkip = ignore;

+		ray.Init( start, end );

+

+		g_csgo.m_trace( )->TraceRay( ray, mask, &filter, tr );

+	}

+

+	void c_autowall::scale_damage( c_base_player* ent, int hitgroup, float weapon_armor_ratio, float& damage ) {

+		float multiplier;

+		float armor_ratio;

+		float new_damage;

+		int armor;

+

+		auto get_hitgroup_mul = []( int hitgroup ) {

+			switch ( hitgroup ) {

+			case HITGROUP_HEAD:

+				return 4.f;

+			case HITGROUP_STOMACH:

+				return 1.25f;

+			case HITGROUP_LEFTLEG:

+			case HITGROUP_RIGHTLEG:

+				return 0.75f;

+			}

+

+			return 1.0f;

+		};

+

+		multiplier = get_hitgroup_mul( hitgroup );

+		damage *= multiplier;

+		armor = ent->m_ArmorValue( );

+

+		if ( is_armored( ent, armor, hitgroup ) ) {

+			armor_ratio = weapon_armor_ratio * 0.5f;

+			new_damage = damage * armor_ratio;

+			if ( hitgroup != HITGROUP_HEAD && damage - damage * armor_ratio * 0.5f > armor ) {

+				new_damage = damage - armor * 2.0f;

+			}

+

+			damage = new_damage;

+		}

+	}

+	

+	bool c_autowall::is_breakable( IClientEntity* ent ) {

+		static auto is_breakable_ptr = pattern::first_code_match( g_csgo.m_chl.dll( ), xors( "55 8B EC 51 56 8B F1 85 F6 74 68 83 BE" ) );

+

+		auto& v2 = *reinterpret_cast< uint8_t* >( uintptr_t( ent ) + 0x27c );

+		uint8_t backup_value = v2;

+

+		auto clientclass = ent->GetClientClass( );

+		if( clientclass->m_class_id != CFuncBrush && clientclass->m_class_id != CBaseDoor )

+			v2 = 2;

+

+		auto is_breakable_fn = reinterpret_cast< bool( __thiscall* )( void* ) >( is_breakable_ptr );

+

+		bool is_breakable = is_breakable_fn( ent );

+		v2 = backup_value;

+

+		return is_breakable;

+	}

+

+	bool c_autowall::trace_to_exit( vec3_t start, vec3_t& dir, vec3_t& out_end, CGameTrace& tr, CGameTrace* exit_trace ) {

+		float dist = 0.f;

+		CTraceFilter filter;

+		Ray_t ray, ray_2;

+

+		while( dist <= 90.f ) {

+			dist += 4.f;

+

+			out_end = start + dir * dist;

+

+			int contents = g_csgo.m_trace( )->GetPointContents( out_end, MASK_SHOT_HULL | CONTENTS_HITBOX );

+

+			if( contents & MASK_SHOT_HULL && !( contents & CONTENTS_HITBOX ) )

+				continue;

+

+			ray.Init( out_end, out_end - dir * 4.f );

+			g_csgo.m_trace( )->TraceRay( ray, MASK_SHOT_HULL | CONTENTS_HITBOX, 0, exit_trace );

+

+			if( exit_trace->startsolid && exit_trace->surface.flags & SURF_HITBOX ) {

+				filter.pSkip = exit_trace->m_pEnt;

+

+				ray_2.Init( out_end, start );

+				g_csgo.m_trace( )->TraceRay( ray, MASK_SHOT_HULL, &filter, exit_trace );

+

+				if( exit_trace->DidHit( ) && !exit_trace->startsolid ) {

+					out_end = exit_trace->endpos;

+					return true;

+				}

+			}

+			else if( !exit_trace->DidHit( ) || exit_trace->startsolid ) {

+				if( tr.m_pEnt && tr.m_pEnt->GetIndex( ) ) {

+					if( is_breakable( tr.m_pEnt ) )

+						return true;

+

+					start = tr.endpos;

+				}

+			}

+			else if( ( ( exit_trace->surface.flags >> 7 ) & 1 ) && !( ( tr.surface.flags >> 7 ) & 1 ) )

+				continue;

+			else if( exit_trace->plane.normal.dot( dir ) <= 1.0f ) {

+				auto fraction = exit_trace->fraction * 4.0f;

+				out_end = out_end - dir * fraction;

+

+				return true;

+			}

+		}

+

+		return false;

+	}

+

+	bool c_autowall::handle_bullet_penetration( weapon_info_t* wpn_data, fire_bullet_data_t& data ) {

+		surfacedata_t* enter_surface_data = g_csgo.m_phys_props( )->GetSurfaceData( data.enter_trace.surface.surfaceProps );

+		int enter_material = enter_surface_data->game.material;

+		float enter_surf_penetration_mod = enter_surface_data->game.penetrationmodifier;

+

+		data.trace_length += data.enter_trace.fraction * data.trace_length_remaining;

+		data.current_damage *= static_cast<float>( pow( wpn_data->range_modifier, data.trace_length * 0.002 ) );

+

+		if( data.trace_length > 3000.f || enter_surf_penetration_mod < 0.1f )

+			data.penetrate_count = 0;

+

+		if( data.penetrate_count <= 0 )

+			return false;

+

+		vec3_t dummy;

+		CGameTrace trace_exit;

+		if( !trace_to_exit( data.enter_trace.endpos, data.direction, dummy, data.enter_trace, &trace_exit ) )

+			return false;

+

+		surfacedata_t* exit_surface_data = g_csgo.m_phys_props( )->GetSurfaceData( trace_exit.surface.surfaceProps );

+

+		int exit_material = exit_surface_data->game.material;

+		float exit_surf_penetration_mod = exit_surface_data->game.penetrationmodifier;

+

+		float final_damage_modifier = 0.16f;

+		float combined_penetration_modifier = 0.0f;

+

+		if( ( data.enter_trace.contents & CONTENTS_GRATE ) != 0 || enter_material == 89 || enter_material == 71 ) {

+			combined_penetration_modifier = 3.0f;

+			final_damage_modifier = 0.05f;

+		}

+		else {

+			combined_penetration_modifier = ( enter_surf_penetration_mod + exit_surf_penetration_mod ) * 0.5f;

+		}

+

+		if( enter_material == exit_material ) {

+			if( exit_material == 87 || exit_material == 85 )

+				combined_penetration_modifier = 3.0f;

+			else if( exit_material == 76 )

+				combined_penetration_modifier = 2.0f;

+		}

+

+		float modifier = fmaxf( 0.f, 1.0f / combined_penetration_modifier );

+		float taken_damage = ( data.current_damage * final_damage_modifier ) + modifier * 3.0f * fmaxf( 0.0f,

+			( float )( 3.0 / ( wpn_data->penetration ) ) * 1.25f );

+		float thickness = ( trace_exit.endpos - data.enter_trace.endpos ).lengthsqr( );

+

+		thickness *= modifier;

+		thickness *= 0.041666668f;

+

+		float lost_damage = fmaxf( 0.0f, taken_damage + thickness );

+

+		if( lost_damage > data.current_damage )

+			return false;

+

+		if( lost_damage >= 0.0f )

+			data.current_damage -= lost_damage;

+

+		if( data.current_damage < 1.0f )

+			return false;

+

+		data.src = trace_exit.endpos;

+		data.penetrate_count--;

+

+		return true;

+	}

+

+	bool c_autowall::fire_bullet( c_base_player* shooter, c_base_player* target, weapon_info_t* wep_data, fire_bullet_data_t& data, bool ent_check, bool scale ) {

+		data.penetrate_count	= 4;

+		data.trace_length		= 0.f;

+

+		if ( !wep_data )	

+			return false;

+

+		data.current_damage = ( float )( wep_data->damage );

+

+		while ( data.penetrate_count > 0 && data.current_damage > 1.0f ) {

+			if ( !ent_check ) {

+				data.trace_length_remaining = data.length_to_end - data.trace_length;

+			}

+			else {

+				data.trace_length_remaining = wep_data->range - data.trace_length;

+			}

+

+			vec3_t end = data.src + data.direction * data.trace_length_remaining;

+			trace_line( data.src, end, MASK_SHOT | CONTENTS_GRATE, shooter, &data.enter_trace );

+

+			util::clip_trace_to_player( target->ce( ), data.src, end + data.direction * 40.f, MASK_SHOT | CONTENTS_GRATE, &data.filter, &data.enter_trace );

+

+			if ( data.enter_trace.fraction == 1.0f ) {

+				if ( !ent_check ) {

+					data.trace_length += data.enter_trace.fraction * data.trace_length_remaining;

+					data.current_damage *= std::pow( wep_data->range_modifier, data.trace_length * 0.002f );

+

+					if( scale )

+						scale_damage( target, HITGROUP_HEAD, wep_data->armor_ratio, data.current_damage );

+					return true;

+				}

+

+				break;

+			}

+

+

+			if ( data.enter_trace.hitgroup <= HITGROUP_RIGHTLEG && data.enter_trace.hitgroup >= HITGROUP_HEAD

+				&& data.enter_trace.m_pEnt == target->ce( ) ) {

+				data.trace_length += data.enter_trace.fraction * data.trace_length_remaining;

+				data.current_damage *= std::pow( wep_data->range_modifier, data.trace_length * 0.002f );

+

+				auto enemy = ( c_base_player* )( data.enter_trace.m_pEnt );

+				auto cl = enemy->ce( )->GetClientClass( );

+				if ( cl->m_class_id != CCSPlayer ) {

+					return false;

+				}

+

+				if ( shooter->m_iTeamNum( ) == enemy->m_iTeamNum( ) && !g_settings.rage.friendlies ) {

+					return false;

+				}

+

+				if( scale )

+					scale_damage( enemy, data.enter_trace.hitgroup, wep_data->armor_ratio, data.current_damage );

+

+				return true;

+			}

+

+			if ( !handle_bullet_penetration( wep_data, data ) )

+				break;

+		}

+

+		return false;

+	}

+

+	float c_autowall::run( c_base_player* shooter, c_base_player* target, const vec3_t& end, bool ent_check ) {

+		if ( !shooter || !target ) {

+			return 0.f;

+		}

+

+		auto wep = shooter->get_weapon( );

+		if ( !wep ) {

+			return 0.f;

+		}

+

+		fire_bullet_data_t data;

+		data.src = shooter->m_vecOrigin( );

+		data.filter.pSkip = shooter;

+

+		if ( shooter == g_ctx.m_local ) {

+			data.src += shooter->m_vecViewOffset( );

+		}

+		else {

+			data.src += 72.f;

+		}

+

+		data.length_to_end = ( end - data.src ).length( );

+

+		vec3_t angles = math::vector_angles( data.src, end );

+		data.direction = math::angle_vectors( angles );

+

+		data.direction.normalize_vector( );

+

+		if ( fire_bullet( shooter, target, wep->get_wpn_info( ), data, ent_check ) ) {

+			return data.current_damage;

+		}

+

+		return 0.f;

+	}

+}