[8200] | 1 | /* |
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| 2 | orxonox - the future of 3D-vertical-scrollers |
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[8812] | 3 | |
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[8200] | 4 | Copyright (C) 2004 orx |
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[8812] | 5 | |
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[8200] | 6 | This program is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 2, or (at your option) |
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| 9 | any later version. |
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[8812] | 10 | |
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[8200] | 11 | ### File Specific: |
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| 12 | main-programmer: Patrick Boenzli |
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| 13 | co-programmer: ... |
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| 14 | */ |
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| 15 | |
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| 16 | #define DEBUG_SPECIAL_MODULE DEBUG_MODULE_COLLISION_REACTION |
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| 17 | |
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| 18 | #include "collision.h" |
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| 19 | #include "collision_event.h" |
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| 20 | |
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| 21 | #include "physics_interface.h" |
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| 22 | |
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| 23 | #include "world_entity.h" |
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| 24 | #include "cr_physics_ground_walk.h" |
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| 25 | |
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[8288] | 26 | #include <vector> |
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| 27 | |
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[8824] | 28 | #include "debug.h" |
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| 29 | |
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[8796] | 30 | #include "aabb.h" |
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| 31 | |
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[8200] | 32 | using namespace std; |
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| 33 | |
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| 34 | |
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| 35 | /** |
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| 36 | * standard constructor |
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| 37 | */ |
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| 38 | CRPhysicsGroundWalk::CRPhysicsGroundWalk () |
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[8724] | 39 | : CollisionReaction() |
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[8200] | 40 | { |
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[8203] | 41 | this->setClassID(CL_CR_PHYSICS_GROUND_WALK, "CRPhysicsGroundWalk"); |
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[8200] | 42 | } |
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| 43 | |
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| 44 | |
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| 45 | /** |
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| 46 | * standard deconstructor |
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| 47 | */ |
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| 48 | CRPhysicsGroundWalk::~CRPhysicsGroundWalk () |
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[8724] | 49 | {} |
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[8200] | 50 | |
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| 51 | |
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| 52 | /** |
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| 53 | * caluculates and applys the reaction to a specific collision |
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| 54 | * @param collision the collision |
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| 55 | */ |
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| 56 | void CRPhysicsGroundWalk::reactToCollision(Collision* collision) |
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| 57 | { |
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[8334] | 58 | CollisionEvent* ce = collision->getCollisionEvents().front(); |
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| 59 | Vector normal = ce->getGroundNormal(); |
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[8724] | 60 | // normal.normalize(); |
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[8288] | 61 | |
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| 62 | // put it back |
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[8724] | 63 | // PRINTF(0)("putting it back to lastPos: \n"); |
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| 64 | // this->lastPositions[0].debug(); |
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| 65 | // PRINTF(0)("current pos:\n"); |
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| 66 | // collision->getEntityB()->getAbsCoor().debug(); |
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[8323] | 67 | |
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[8836] | 68 | float height; |
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[8796] | 69 | AABB* box = collision->getEntityB()->getModelAABB(); |
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[8836] | 70 | WorldEntity* entity = collision->getEntityB(); |
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[8812] | 71 | |
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[8836] | 72 | float CR_MAX_WALK_HEIGHT = 2.0f; |
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| 73 | |
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[8834] | 74 | if( box != NULL) |
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| 75 | { |
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[8812] | 76 | |
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[8834] | 77 | Vector collPos = collision->getEntityB()->getAbsCoor() + box->center - ce->getCollisionPosition(); |
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[8836] | 78 | height = collPos.y - box->halfLength[1]; |
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[8834] | 79 | |
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[8836] | 80 | PRINTF(0)("height: %f , model height: %f\n", height, box->halfLength[1]); |
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| 81 | PRINTF(0)(" ground normal: %f, %f, %f\n", normal.x, normal.y, normal.z); |
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| 82 | |
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| 83 | // object is beneath the plane (ground) |
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| 84 | if( height < 0.0f) |
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| 85 | { |
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| 86 | entity->shiftCoor(Vector(0,-height,0)); |
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| 87 | } |
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| 88 | |
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| 89 | |
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[8834] | 90 | } |
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| 91 | |
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[8836] | 92 | |
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| 93 | |
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| 94 | |
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| 95 | |
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[8834] | 96 | #if 0 |
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[8824] | 97 | if( box != NULL) |
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[8796] | 98 | height = ( ce->getCollisionPosition() - collision->getEntityB()->getAbsCoor() )*(-1.0f) ; |
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| 99 | else |
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| 100 | height = ce->getCollisionPosition() - collision->getEntityB()->getAbsCoor() ; |
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[8724] | 101 | |
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| 102 | |
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[8824] | 103 | if( box != NULL) { |
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[8724] | 104 | |
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[8824] | 105 | |
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[8796] | 106 | if(ce->getCollisionPosition().x <= 0.9 && ce->getGroundNormal().len() <= 1.4f) { |
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| 107 | collision->getEntityB()->setAbsCoor(collision->getEntityB()->getLastAbsCoor()); |
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| 108 | return; |
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| 109 | } |
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| 110 | if(ce->getCollisionPosition().z <= 0.9 && ce->getGroundNormal().len() <= 1.4f) { |
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| 111 | collision->getEntityB()->setAbsCoor(collision->getEntityB()->getLastAbsCoor()); |
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| 112 | return; |
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| 113 | } |
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[8724] | 114 | |
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[8796] | 115 | if(ce->getGroundNormal().len() <= 0.1f) { |
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| 116 | collision->getEntityB()->setAbsCoor(collision->getEntityB()->getLastAbsCoor()); |
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| 117 | return; |
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| 118 | } |
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[8812] | 119 | |
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| 120 | |
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[8796] | 121 | if(ce->getGroundNormal().len() >= 1.4f) { |
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[8724] | 122 | downspeed++; |
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| 123 | collision->getEntityB()->setAbsCoor(collision->getEntityB()->getAbsCoor() + Vector(0.0,-0.08*downspeed,0.0)); |
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[8796] | 124 | return; |
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[8724] | 125 | } |
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| 126 | |
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[8796] | 127 | |
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| 128 | if(height.y > box->halfLength[1] + 0.0f ) // Above ground |
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[8724] | 129 | { |
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[8812] | 130 | if(height.y < box->halfLength[1] + 2.3f) // Snap in |
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[8796] | 131 | { |
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| 132 | downspeed = 0; |
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| 133 | collision->getEntityB()->setAbsCoor(collision->getEntityB()->getAbsCoor() - Vector(0.0,height.y - box->halfLength[1] - 0.0f,0.0)); |
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| 134 | } else |
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| 135 | { |
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| 136 | downspeed++; |
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| 137 | collision->getEntityB()->setAbsCoor(collision->getEntityB()->getAbsCoor() + Vector(0.0,-0.08*downspeed,0.0)); |
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| 138 | } |
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| 139 | |
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[8724] | 140 | } |
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[8796] | 141 | else { |
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| 142 | if(height.y < box->halfLength[1] + 0.0f /* && height.y > - 55.0f*/) // below ground |
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| 143 | { |
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| 144 | //if(downspeed <= 0) downspeed =1; |
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[8836] | 145 | collision->getEntityB()->setAbsCoor(collision->getEntityB()->getAbsCoor() + Vector(0.0, -height.y + box->halfLength[1] + 2.0f,0.0)); |
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[8796] | 146 | //collision->getEntityB()->setVelocity(Vector(0.0,0.0,0.0)); |
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| 147 | downspeed = 0; |
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| 148 | } |
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[8724] | 149 | |
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[8796] | 150 | } |
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[8724] | 151 | |
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[8796] | 152 | }// if(box!= NULL) |
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[8834] | 153 | #endif |
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[8724] | 154 | /* |
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[8341] | 155 | PRINTF(0)("Collision with Ground: \n"); |
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| 156 | collision->getEntityB()->getAbsCoor().debug(); |
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[8724] | 157 | collision->getEntityB()->setVelocity(Vector()); |
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| 158 | collision->getEntityB()->setAbsCoor(this->lastPositions[1]); |
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[8341] | 159 | |
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[8724] | 160 | */ |
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[8812] | 161 | |
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[8256] | 162 | } |
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[8200] | 163 | |
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[8256] | 164 | |
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| 165 | |
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[8724] | 166 | |
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[8256] | 167 | /** |
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| 168 | * use this to do some collision offline calculations, only called for bContinuousPoll == true |
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| 169 | */ |
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| 170 | void CRPhysicsGroundWalk::update(WorldEntity* owner) |
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| 171 | { |
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[8337] | 172 | for( int i = 9; i > 0; i--) { |
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[8336] | 173 | this->lastPositions[i] = this->lastPositions[i-1]; |
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[8724] | 174 | // PRINTF(0)("lastPosition[%i]: %f, %f, %f\n", i, lastPositions[i].x, lastPositions[i].y, lastPositions[i].z); |
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[8337] | 175 | } |
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[8336] | 176 | this->lastPositions[0] = owner->getAbsCoor(); |
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[8200] | 177 | } |
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| 178 | |
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[8256] | 179 | |
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