#include "stdafx.h"
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Functions | |
| void | DoCollisions (CWorld *ThisWorld) |
| check for collisions | |
| void | Collide (CWorld *ThisWorld, CObject *ObjA, CObject *ObjB) |
| process collision results | |
| int | InitCollision (void) |
| initialize collision detection system | |
| int | loadInteractionMatrix (int *matrix, const char *filename) |
| load interaction matrix from disk | |
| int | getInteraction (int matrixID, int typeID_A, int typeID_B) |
| get object interaction response code | |
| void | ProcessTileCollisions (CWorld *ThisWorld) |
| check for collisions between players and tile objects | |
Variables | |
| int | collisionInteract [INTERACTION_MATRIX_SIZE *INTERACTION_MATRIX_SIZE] |
| int | damageInteract [INTERACTION_MATRIX_SIZE *INTERACTION_MATRIX_SIZE] |
| int | effectInteract [INTERACTION_MATRIX_SIZE *INTERACTION_MATRIX_SIZE] |
Process the results of a collision between two objects passed in as references. This function uses a matrix-lookup approach to determine the appropriate response to any particular collision, examining each object's 'iType' member variable and using it as an index in to the interaction matrix. This scheme is used three times in order to retrieve the appropriate responses for collision, damage, and effects (such as equipping the player with a certain weapon).
Definition at line 102 of file collision.cpp.
References GameLogicDamage(), GameLogicEquip(), getInteraction(), CObject::iHealth, CObject::iType, MATRIXID_COLLISION, MATRIXID_DAMAGE, MATRIXID_EFFECT, PhysicsDampedCollision(), PhysicsElasticCollision(), PhysicsReflect(), PhysicsStop(), PlaySound(), RESPONSE_COL_DAMPED, RESPONSE_COL_ELASTIC, RESPONSE_COL_REFLECT_A, RESPONSE_COL_REFLECT_B, RESPONSE_COL_REFLECT_BOTH, RESPONSE_COL_STOP_A, RESPONSE_COL_STOP_B, RESPONSE_COL_STOP_BOTH, RESPONSE_DMG_A, RESPONSE_DMG_B, RESPONSE_DMG_BOTH, RESPONSE_DMG_KILL_A, RESPONSE_DMG_KILL_B, RESPONSE_DMG_KILL_BOTH, RESPONSE_EFF_EQUIP_A, RESPONSE_EFF_EQUIP_B, RESPONSE_NULL, and SOUNDID_BOUNCE.
Referenced by DoCollisions().
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| void DoCollisions | ( | CWorld * | ThisWorld | ) |
Check the game world's objects for object pairs which are colliding with each other. If they are, pass the objects as references to a routine which will process the interaction between the two objects.
Definition at line 43 of file collision.cpp.
References CObject::bCheckedForCollision, Collide(), CObject::fBBBottom, CObject::fBBLeft, CObject::fBBRight, CObject::fBBTop, CWorld::iNumCollisions, CObject::Next, CWorld::Objects, CObject::Position, Vector::x, and Vector::y.
Referenced by PlayGame().
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| int getInteraction | ( | int | matrixID, | |
| int | typeID_A, | |||
| int | typeID_B | |||
| ) |
This function looks up the interaction response code in a matrix structure for a given game object pair. The matrixID parameter specifies which type of response should be retrieved; collision, damage, and effect responses.
Definition at line 276 of file collision.cpp.
References collisionInteract, damageInteract, DAS_ERROR, effectInteract, INTERACTION_MATRIX_SIZE, MATRIXID_COLLISION, MATRIXID_DAMAGE, and MATRIXID_EFFECT.
Referenced by Collide().
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| int InitCollision | ( | void | ) |
Initialize the collision detection system. Loads the object interaction matrices from disk, and performs any needed setup on the collision detection engine.
Definition at line 212 of file collision.cpp.
References collisionInteract, damageInteract, DAS_ERROR, effectInteract, and loadInteractionMatrix().
Referenced by main().
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| int loadInteractionMatrix | ( | int * | matrix, | |
| const char * | filename | |||
| ) |
Load data from an interaction matrix file stored on disk. The interaction matrix can hold information about collision response, damage taken, and other effects that occur when two objects come in contact with each other.
Definition at line 230 of file collision.cpp.
References DAS_ERROR, and INTERACTION_MATRIX_SIZE.
Referenced by InitCollision().
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| void ProcessTileCollisions | ( | CWorld * | ThisWorld | ) |
This function check all players against the tile objects they're 'standing' on and processes collision events based on the particular type of tile the player is on. This function employs a timer routine in order to only periodically apply the collision effect.
Definition at line 303 of file collision.cpp.
References CWorld::AddEffect(), CELL_SIZE, EFFECTID_PSYSTEM, CObject::fBBBottom, CObject::fBBLeft, CObject::fBBRight, CObject::fBBTop, CTile::iDamage, CObject::iHealth, CTile::iTileEffect, MAP_SIZE, NUM_PLAYERS, PI, CWorld::Player, PlaySound(), CObject::Position, CEffect::PSys, PSystem::SetColor(), SOUNDID_BURNING, TILE_EFFECT_DAMAGE, TILE_EFFECT_TIMER, TILE_SOUND_TIMER, CWorld::tiles, Vector::x, and Vector::y.
Referenced by PlayGame().
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| int collisionInteract[INTERACTION_MATRIX_SIZE *INTERACTION_MATRIX_SIZE] |
| int damageInteract[INTERACTION_MATRIX_SIZE *INTERACTION_MATRIX_SIZE] |
| int effectInteract[INTERACTION_MATRIX_SIZE *INTERACTION_MATRIX_SIZE] |
Copyright Windsor Schmidt 2006 - All rights reserved.