From 7e5dde1f1a6ffbba98572b7fad3a51538104c04b Mon Sep 17 00:00:00 2001 From: aap Date: Tue, 26 May 2020 11:37:46 +0200 Subject: eSurfaceType --- src/core/Cam.cpp | 28 ++++++------- src/core/Collision.cpp | 28 ++++++------- src/core/SurfaceTable.cpp | 100 ++++++++++++++++++++++----------------------- src/core/SurfaceTable.h | 57 +++++++++++++------------- src/core/TempColModels.cpp | 28 ++++++------- 5 files changed, 120 insertions(+), 121 deletions(-) (limited to 'src/core') diff --git a/src/core/Cam.cpp b/src/core/Cam.cpp index 6c79604c..247e77ce 100644 --- a/src/core/Cam.cpp +++ b/src/core/Cam.cpp @@ -504,11 +504,11 @@ CCam::ProcessSpecialHeightRoutines(void) switch(((CPhysical*)CamTargetEntity)->m_nSurfaceTouched) case SURFACE_GRASS: - case SURFACE_DIRT: - case SURFACE_DIRTTRACK: - case SURFACE_STEEL: - case SURFACE_TIRE: - case SURFACE_STONE: + case SURFACE_GRAVEL: + case SURFACE_MUD_DRY: + case SURFACE_THICK_METAL_PLATE: + case SURFACE_RUBBER: + case SURFACE_STEEP_CLIFF: OnRoad = true; if(CCullZones::PlayerNoRain()) @@ -565,9 +565,9 @@ CCam::ProcessSpecialHeightRoutines(void) if(PreviouslyFailedRoadHeightCheck && m_fCloseInPedHeightOffset < 0.0001f){ if(colPoint.surfaceB != SURFACE_TARMAC && colPoint.surfaceB != SURFACE_GRASS && - colPoint.surfaceB != SURFACE_DIRT && - colPoint.surfaceB != SURFACE_DIRTTRACK && - colPoint.surfaceB != SURFACE_STONE){ + colPoint.surfaceB != SURFACE_GRAVEL && + colPoint.surfaceB != SURFACE_MUD_DRY && + colPoint.surfaceB != SURFACE_STEEP_CLIFF){ if(m_fRoadOffSet > 1.4f) m_fRoadOffSet = 1.4f; }else{ @@ -1408,11 +1408,11 @@ CCam::Process_FollowPed(const CVector &CameraTarget, float TargetOrientation, fl bool foo = false; switch(((CPhysical*)CamTargetEntity)->m_nSurfaceTouched) case SURFACE_GRASS: - case SURFACE_DIRT: + case SURFACE_GRAVEL: case SURFACE_PAVEMENT: - case SURFACE_STEEL: - case SURFACE_TIRE: - case SURFACE_STONE: + case SURFACE_THICK_METAL_PLATE: + case SURFACE_RUBBER: + case SURFACE_STEEP_CLIFF: foo = true; if(foo) WellBufferMe(TargetHeight, &m_fCamBufferedHeight, &m_fCamBufferedHeightSpeed, 0.4f, 0.05f, false); @@ -1764,8 +1764,8 @@ CCam::WorkOutCamHeightWeeCar(CVector &TargetCoors, float TargetOrientation) else WellBufferMe(TargetZOffSet, &RoadHeightFix, &RoadHeightFixSpeed, 0.27f, 0.1f, false); - if((colpoint.surfaceB == SURFACE_DEFAULT || colpoint.surfaceB >= SURFACE_METAL6) && - colpoint.surfaceB != SURFACE_STEEL && colpoint.surfaceB != SURFACE_STONE && + if((colpoint.surfaceB == SURFACE_DEFAULT || colpoint.surfaceB >= SURFACE_CAR) && + colpoint.surfaceB != SURFACE_THICK_METAL_PLATE && colpoint.surfaceB != SURFACE_STEEP_CLIFF && RoadHeightFix > 1.4f) RoadHeightFix = 1.4f; diff --git a/src/core/Collision.cpp b/src/core/Collision.cpp index 01cc323a..23eaa8dd 100644 --- a/src/core/Collision.cpp +++ b/src/core/Collision.cpp @@ -548,18 +548,18 @@ CCollision::TestLineOfSight(const CColLine &line, const CMatrix &matrix, CColMod return false; for(i = 0; i < model.numSpheres; i++) - if(!ignoreSeeThrough || model.spheres[i].surface != SURFACE_GLASS && model.spheres[i].surface != SURFACE_SCAFFOLD) + if(!ignoreSeeThrough || model.spheres[i].surface != SURFACE_GLASS && model.spheres[i].surface != SURFACE_TRANSPARENT_CLOTH) if(TestLineSphere(newline, model.spheres[i])) return true; for(i = 0; i < model.numBoxes; i++) - if(!ignoreSeeThrough || model.boxes[i].surface != SURFACE_GLASS && model.boxes[i].surface != SURFACE_SCAFFOLD) + if(!ignoreSeeThrough || model.boxes[i].surface != SURFACE_GLASS && model.boxes[i].surface != SURFACE_TRANSPARENT_CLOTH) if(TestLineBox(newline, model.boxes[i])) return true; CalculateTrianglePlanes(&model); for(i = 0; i < model.numTriangles; i++) - if(!ignoreSeeThrough || model.triangles[i].surface != SURFACE_GLASS && model.triangles[i].surface != SURFACE_SCAFFOLD) + if(!ignoreSeeThrough || model.triangles[i].surface != SURFACE_GLASS && model.triangles[i].surface != SURFACE_TRANSPARENT_CLOTH) if(TestLineTriangle(newline, model.vertices, model.triangles[i], model.trianglePlanes[i])) return true; @@ -1179,16 +1179,16 @@ CCollision::ProcessLineOfSight(const CColLine &line, float coldist = mindist; for(i = 0; i < model.numSpheres; i++) - if(!ignoreSeeThrough || model.spheres[i].surface != SURFACE_GLASS && model.spheres[i].surface != SURFACE_SCAFFOLD) + if(!ignoreSeeThrough || model.spheres[i].surface != SURFACE_GLASS && model.spheres[i].surface != SURFACE_TRANSPARENT_CLOTH) ProcessLineSphere(newline, model.spheres[i], point, coldist); for(i = 0; i < model.numBoxes; i++) - if(!ignoreSeeThrough || model.boxes[i].surface != SURFACE_GLASS && model.boxes[i].surface != SURFACE_SCAFFOLD) + if(!ignoreSeeThrough || model.boxes[i].surface != SURFACE_GLASS && model.boxes[i].surface != SURFACE_TRANSPARENT_CLOTH) ProcessLineBox(newline, model.boxes[i], point, coldist); CalculateTrianglePlanes(&model); for(i = 0; i < model.numTriangles; i++) - if(!ignoreSeeThrough || model.triangles[i].surface != SURFACE_GLASS && model.triangles[i].surface != SURFACE_SCAFFOLD) + if(!ignoreSeeThrough || model.triangles[i].surface != SURFACE_GLASS && model.triangles[i].surface != SURFACE_TRANSPARENT_CLOTH) ProcessLineTriangle(newline, model.vertices, model.triangles[i], model.trianglePlanes[i], point, coldist); if(coldist < mindist){ @@ -1219,17 +1219,17 @@ CCollision::ProcessVerticalLine(const CColLine &line, float coldist = mindist; for(i = 0; i < model.numSpheres; i++) - if(!ignoreSeeThrough || model.spheres[i].surface != SURFACE_GLASS && model.spheres[i].surface != SURFACE_SCAFFOLD) + if(!ignoreSeeThrough || model.spheres[i].surface != SURFACE_GLASS && model.spheres[i].surface != SURFACE_TRANSPARENT_CLOTH) ProcessLineSphere(newline, model.spheres[i], point, coldist); for(i = 0; i < model.numBoxes; i++) - if(!ignoreSeeThrough || model.boxes[i].surface != SURFACE_GLASS && model.boxes[i].surface != SURFACE_SCAFFOLD) + if(!ignoreSeeThrough || model.boxes[i].surface != SURFACE_GLASS && model.boxes[i].surface != SURFACE_TRANSPARENT_CLOTH) ProcessLineBox(newline, model.boxes[i], point, coldist); CalculateTrianglePlanes(&model); TempStoredPoly.valid = false; for(i = 0; i < model.numTriangles; i++) - if(!ignoreSeeThrough || model.triangles[i].surface != SURFACE_GLASS && model.triangles[i].surface != SURFACE_SCAFFOLD) + if(!ignoreSeeThrough || model.triangles[i].surface != SURFACE_GLASS && model.triangles[i].surface != SURFACE_TRANSPARENT_CLOTH) ProcessVerticalLineTriangle(newline, model.vertices, model.triangles[i], model.trianglePlanes[i], point, coldist, &TempStoredPoly); if(coldist < mindist){ @@ -1758,15 +1758,15 @@ CCollision::DrawColModel_Coloured(const CMatrix &mat, const CColModel &colModel, b *= f; } - if(s == SURFACE_SCAFFOLD || s == SURFACE_METAL_FENCE || - s == SURFACE_BOLLARD || s == SURFACE_METAL_POLE) + if(s == SURFACE_TRANSPARENT_CLOTH || s == SURFACE_METAL_CHAIN_FENCE || + s == SURFACE_TRANSPARENT_STONE || s == SURFACE_SCAFFOLD_POLE) if(CTimer::GetFrameCounter() & 1){ r = 0; g = 0; b = 0; } - if(s > SURFACE_GATE){ + if(s > SURFACE_METAL_GATE){ r = CGeneral::GetRandomNumber(); g = CGeneral::GetRandomNumber(); b = CGeneral::GetRandomNumber(); @@ -1839,8 +1839,8 @@ CCollision::DrawColModel_Coloured(const CMatrix &mat, const CColModel &colModel, b *= f; } - if(s == SURFACE_SCAFFOLD || s == SURFACE_METAL_FENCE || - s == SURFACE_BOLLARD || s == SURFACE_METAL_POLE) + if(s == SURFACE_TRANSPARENT_CLOTH || s == SURFACE_METAL_CHAIN_FENCE || + s == SURFACE_TRANSPARENT_STONE || s == SURFACE_SCAFFOLD_POLE) if(CTimer::GetFrameCounter() & 1){ r = 0; g = 0; diff --git a/src/core/SurfaceTable.cpp b/src/core/SurfaceTable.cpp index e4f9c0cd..b1bcceb6 100644 --- a/src/core/SurfaceTable.cpp +++ b/src/core/SurfaceTable.cpp @@ -59,36 +59,36 @@ CSurfaceTable::GetAdhesionGroup(uint8 surfaceType) case SURFACE_DEFAULT: return ADHESIVE_ROAD; case SURFACE_TARMAC: return ADHESIVE_ROAD; case SURFACE_GRASS: return ADHESIVE_LOOSE; - case SURFACE_DIRT: return ADHESIVE_LOOSE; - case SURFACE_DIRTTRACK: return ADHESIVE_HARD; + case SURFACE_GRAVEL: return ADHESIVE_LOOSE; + case SURFACE_MUD_DRY: return ADHESIVE_HARD; case SURFACE_PAVEMENT: return ADHESIVE_ROAD; - case SURFACE_METAL6: return ADHESIVE_HARD; + case SURFACE_CAR: return ADHESIVE_HARD; case SURFACE_GLASS: return ADHESIVE_HARD; - case SURFACE_SCAFFOLD: return ADHESIVE_HARD; - case SURFACE_METAL_DOOR: return ADHESIVE_HARD; - case SURFACE_BILLBOARD: return ADHESIVE_HARD; - case SURFACE_STEEL: return ADHESIVE_HARD; - case SURFACE_METAL_POLE: return ADHESIVE_HARD; - case SURFACE_STREET_LIGHT: return ADHESIVE_HARD; - case SURFACE_METAL14: return ADHESIVE_HARD; - case SURFACE_METAL15: return ADHESIVE_HARD; - case SURFACE_METAL_FENCE: return ADHESIVE_HARD; - case SURFACE_FLESH: return ADHESIVE_RUBBER; + case SURFACE_TRANSPARENT_CLOTH: return ADHESIVE_HARD; + case SURFACE_GARAGE_DOOR: return ADHESIVE_HARD; + case SURFACE_CAR_PANEL: return ADHESIVE_HARD; + case SURFACE_THICK_METAL_PLATE: return ADHESIVE_HARD; + case SURFACE_SCAFFOLD_POLE: return ADHESIVE_HARD; + case SURFACE_LAMP_POST: return ADHESIVE_HARD; + case SURFACE_FIRE_HYDRANT: return ADHESIVE_HARD; + case SURFACE_GIRDER: return ADHESIVE_HARD; + case SURFACE_METAL_CHAIN_FENCE: return ADHESIVE_HARD; + case SURFACE_PED: return ADHESIVE_RUBBER; case SURFACE_SAND: return ADHESIVE_LOOSE; - case SURFACE_PUDDLE: return ADHESIVE_WET; - case SURFACE_WOOD: return ADHESIVE_ROAD; - case SURFACE_WOOD_BOX: return ADHESIVE_ROAD; - case SURFACE_WOOD_PLANK: return ADHESIVE_ROAD; - case SURFACE_TIRE: return ADHESIVE_RUBBER; - case SURFACE_HARD24: return ADHESIVE_HARD; + case SURFACE_WATER: return ADHESIVE_WET; + case SURFACE_WOOD_CRATES: return ADHESIVE_ROAD; + case SURFACE_WOOD_BENCH: return ADHESIVE_ROAD; + case SURFACE_WOOD_SOLID: return ADHESIVE_ROAD; + case SURFACE_RUBBER: return ADHESIVE_RUBBER; + case SURFACE_PLASTIC: return ADHESIVE_HARD; case SURFACE_HEDGE: return ADHESIVE_LOOSE; - case SURFACE_STONE: return ADHESIVE_LOOSE; - case SURFACE_METAL27: return ADHESIVE_HARD; - case SURFACE_METAL28: return ADHESIVE_HARD; - case SURFACE_RUBBER29: return ADHESIVE_RUBBER; - case SURFACE_LOOSE30: return ADHESIVE_LOOSE; - case SURFACE_BOLLARD: return ADHESIVE_HARD; - case SURFACE_GATE: return ADHESIVE_HARD; + case SURFACE_STEEP_CLIFF: return ADHESIVE_LOOSE; + case SURFACE_CONTAINER: return ADHESIVE_HARD; + case SURFACE_NEWS_VENDOR: return ADHESIVE_HARD; + case SURFACE_WHEELBASE: return ADHESIVE_RUBBER; + case SURFACE_CARDBOARDBOX: return ADHESIVE_LOOSE; + case SURFACE_TRANSPARENT_STONE: return ADHESIVE_HARD; + case SURFACE_METAL_GATE: return ADHESIVE_HARD; default: return ADHESIVE_ROAD; } } @@ -99,36 +99,36 @@ CSurfaceTable::GetWetMultiplier(uint8 surfaceType) switch(surfaceType){ case SURFACE_DEFAULT: case SURFACE_TARMAC: - case SURFACE_DIRTTRACK: + case SURFACE_MUD_DRY: case SURFACE_PAVEMENT: - case SURFACE_SCAFFOLD: - case SURFACE_WOOD: - case SURFACE_WOOD_BOX: - case SURFACE_WOOD_PLANK: + case SURFACE_TRANSPARENT_CLOTH: + case SURFACE_WOOD_CRATES: + case SURFACE_WOOD_BENCH: + case SURFACE_WOOD_SOLID: case SURFACE_HEDGE: - case SURFACE_LOOSE30: - case SURFACE_BOLLARD: + case SURFACE_CARDBOARDBOX: + case SURFACE_TRANSPARENT_STONE: return 1.0f - CWeather::WetRoads*0.25f; case SURFACE_GRASS: - case SURFACE_METAL6: + case SURFACE_CAR: case SURFACE_GLASS: - case SURFACE_METAL_DOOR: - case SURFACE_BILLBOARD: - case SURFACE_STEEL: - case SURFACE_METAL_POLE: - case SURFACE_STREET_LIGHT: - case SURFACE_METAL14: - case SURFACE_METAL15: - case SURFACE_METAL_FENCE: - case SURFACE_FLESH: - case SURFACE_TIRE: - case SURFACE_HARD24: - case SURFACE_STONE: - case SURFACE_METAL27: - case SURFACE_METAL28: - case SURFACE_RUBBER29: - case SURFACE_GATE: + case SURFACE_GARAGE_DOOR: + case SURFACE_CAR_PANEL: + case SURFACE_THICK_METAL_PLATE: + case SURFACE_SCAFFOLD_POLE: + case SURFACE_LAMP_POST: + case SURFACE_FIRE_HYDRANT: + case SURFACE_GIRDER: + case SURFACE_METAL_CHAIN_FENCE: + case SURFACE_PED: + case SURFACE_RUBBER: + case SURFACE_PLASTIC: + case SURFACE_STEEP_CLIFF: + case SURFACE_CONTAINER: + case SURFACE_NEWS_VENDOR: + case SURFACE_WHEELBASE: + case SURFACE_METAL_GATE: return 1.0f - CWeather::WetRoads*0.4f; default: diff --git a/src/core/SurfaceTable.h b/src/core/SurfaceTable.h index 768521bf..25b5e57d 100644 --- a/src/core/SurfaceTable.h +++ b/src/core/SurfaceTable.h @@ -1,45 +1,44 @@ #pragma once -// TODO: check this enum eSurfaceType { SURFACE_DEFAULT, SURFACE_TARMAC, SURFACE_GRASS, - SURFACE_DIRT, - SURFACE_DIRTTRACK, + SURFACE_GRAVEL, + SURFACE_MUD_DRY, SURFACE_PAVEMENT, - SURFACE_METAL6, + SURFACE_CAR, SURFACE_GLASS, - SURFACE_SCAFFOLD, - SURFACE_METAL_DOOR, // garage door - SURFACE_BILLBOARD, - SURFACE_STEEL, //? - SURFACE_METAL_POLE, // ? - SURFACE_STREET_LIGHT, - SURFACE_METAL14, - SURFACE_METAL15, - SURFACE_METAL_FENCE, - SURFACE_FLESH, + SURFACE_TRANSPARENT_CLOTH, + SURFACE_GARAGE_DOOR, + SURFACE_CAR_PANEL, + SURFACE_THICK_METAL_PLATE, + SURFACE_SCAFFOLD_POLE, + SURFACE_LAMP_POST, + SURFACE_FIRE_HYDRANT, + SURFACE_GIRDER, + SURFACE_METAL_CHAIN_FENCE, + SURFACE_PED, SURFACE_SAND, - SURFACE_PUDDLE, - SURFACE_WOOD, - SURFACE_WOOD_BOX, - SURFACE_WOOD_PLANK, - SURFACE_TIRE, - SURFACE_HARD24, + SURFACE_WATER, + SURFACE_WOOD_CRATES, + SURFACE_WOOD_BENCH, + SURFACE_WOOD_SOLID, + SURFACE_RUBBER, + SURFACE_PLASTIC, SURFACE_HEDGE, - SURFACE_STONE, - SURFACE_METAL27, - SURFACE_METAL28, - SURFACE_RUBBER29, - SURFACE_LOOSE30, - SURFACE_BOLLARD, - SURFACE_GATE, + SURFACE_STEEP_CLIFF, + SURFACE_CONTAINER, + SURFACE_NEWS_VENDOR, + SURFACE_WHEELBASE, + SURFACE_CARDBOARDBOX, + SURFACE_TRANSPARENT_STONE, + SURFACE_METAL_GATE, // These are illegal - SURFACE_SAND33, - SURFACE_ROAD34, + SURFACE_SAND_BEACH, + SURFACE_CONCRETE_BEACH, }; enum diff --git a/src/core/TempColModels.cpp b/src/core/TempColModels.cpp index 79d6252b..b4d994ec 100644 --- a/src/core/TempColModels.cpp +++ b/src/core/TempColModels.cpp @@ -65,7 +65,7 @@ CTempColModels::Initialise(void) #else for (i = 0; i < ARRAY_SIZE(s_aPedGSpheres); i++) { #endif - s_aPedSpheres[i].surface = SURFACE_FLESH; + s_aPedSpheres[i].surface = SURFACE_PED; s_aPedSpheres[i].piece = 0; } @@ -84,7 +84,7 @@ CTempColModels::Initialise(void) s_aPed2Spheres[2].center = CVector(0.0f, -0.35f, -0.9f); for (i = 0; i < ARRAY_SIZE(s_aPed2Spheres); i++) { - s_aPed2Spheres[i].surface = SURFACE_FLESH; + s_aPed2Spheres[i].surface = SURFACE_PED; s_aPed2Spheres[i].piece = 0; } @@ -105,10 +105,10 @@ CTempColModels::Initialise(void) s_aPedGSpheres[2].center = CVector(0.0f, 0.25f, -0.9f); s_aPedGSpheres[3].center = CVector(0.0f, 0.65f, -0.9f); - s_aPedGSpheres[0].surface = SURFACE_FLESH; - s_aPedGSpheres[1].surface = SURFACE_FLESH; - s_aPedGSpheres[2].surface = SURFACE_FLESH; - s_aPedGSpheres[3].surface = SURFACE_FLESH; + s_aPedGSpheres[0].surface = SURFACE_PED; + s_aPedGSpheres[1].surface = SURFACE_PED; + s_aPedGSpheres[2].surface = SURFACE_PED; + s_aPedGSpheres[3].surface = SURFACE_PED; s_aPedGSpheres[0].piece = 4; s_aPedGSpheres[1].piece = 1; s_aPedGSpheres[2].piece = 0; @@ -130,7 +130,7 @@ CTempColModels::Initialise(void) s_aDoorSpheres[2].center = CVector(0.0f, -0.6f, 0.25f); for (i = 0; i < ARRAY_SIZE(s_aDoorSpheres); i++) { - s_aDoorSpheres[i].surface = SURFACE_BILLBOARD; + s_aDoorSpheres[i].surface = SURFACE_CAR_PANEL; s_aDoorSpheres[i].piece = 0; } @@ -150,7 +150,7 @@ CTempColModels::Initialise(void) s_aBumperSpheres[3].center = CVector(-0.85f, -0.05f, 0.0f); for (i = 0; i < ARRAY_SIZE(s_aBumperSpheres); i++) { - s_aBumperSpheres[i].surface = SURFACE_BILLBOARD; + s_aBumperSpheres[i].surface = SURFACE_CAR_PANEL; s_aBumperSpheres[i].piece = 0; } @@ -170,7 +170,7 @@ CTempColModels::Initialise(void) s_aPanelSpheres[3].center = CVector(-0.15f, 0.45f, 0.0f); for (i = 0; i < ARRAY_SIZE(s_aPanelSpheres); i++) { - s_aPanelSpheres[i].surface = SURFACE_BILLBOARD; + s_aPanelSpheres[i].surface = SURFACE_CAR_PANEL; s_aPanelSpheres[i].piece = 0; } @@ -190,7 +190,7 @@ CTempColModels::Initialise(void) s_aBonnetSpheres[3].center = CVector(0.4f, 0.9f, 0.0f); for (i = 0; i < ARRAY_SIZE(s_aBonnetSpheres); i++) { - s_aBonnetSpheres[i].surface = SURFACE_BILLBOARD; + s_aBonnetSpheres[i].surface = SURFACE_CAR_PANEL; s_aBonnetSpheres[i].piece = 0; } @@ -210,7 +210,7 @@ CTempColModels::Initialise(void) s_aBootSpheres[3].center = CVector(0.4f, -0.6f, 0.0f); for (i = 0; i < ARRAY_SIZE(s_aBootSpheres); i++) { - s_aBootSpheres[i].surface = SURFACE_BILLBOARD; + s_aBootSpheres[i].surface = SURFACE_CAR_PANEL; s_aBootSpheres[i].piece = 0; } @@ -232,7 +232,7 @@ CTempColModels::Initialise(void) #else for (i = 0; i < ARRAY_SIZE(s_aBootSpheres); i++) { #endif - s_aWheelSpheres[i].surface = SURFACE_RUBBER29; + s_aWheelSpheres[i].surface = SURFACE_WHEELBASE; s_aWheelSpheres[i].piece = 0; } @@ -254,7 +254,7 @@ CTempColModels::Initialise(void) #else for (i = 0; i < ARRAY_SIZE(s_aBootSpheres); i++) { #endif - s_aBodyPartSpheres1[i].surface = SURFACE_FLESH; + s_aBodyPartSpheres1[i].surface = SURFACE_PED; s_aBodyPartSpheres1[i].piece = 0; } @@ -276,7 +276,7 @@ CTempColModels::Initialise(void) #else for (i = 0; i < ARRAY_SIZE(s_aBootSpheres); i++) { #endif - s_aBodyPartSpheres2[i].surface = SURFACE_FLESH; + s_aBodyPartSpheres2[i].surface = SURFACE_PED; s_aBodyPartSpheres2[i].piece = 0; } -- cgit v1.2.3