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| -rw-r--r-- | ; | 198 |
1 files changed, 0 insertions, 198 deletions
@@ -1,198 +0,0 @@ -#include "world.h" -#include "game.h" - -void initWorld(World * world) { - world->entities = NULL; - world->entitiesCount = 0; - - world->lookUp = NULL; - world->lookUpSize = 0; - - world->vacantIds = NULL; - world->vacantIdsCount = 0; -} - -void freeWorld(World * world) { - int i; - - if (world->entities == NULL) - return; - - // Close entities. - for (i = 0; i < world->entitiesCount; ++i) - closeEntity(&world->entities[i]); - - KF_FREE(world->entities); - KF_FREE(world->lookUp); - - if (world->vacantIds != NULL) - KF_FREE(world->vacantIds); -} - -// Not for direct use. -KfError pushVacantId(World * world, EntityId id) { - ++world->vacantIdsCount; - - // Allocate. - if (world->vacantIds == NULL) - world->vacantIds = (EntityId*)KF_CALLOC(1, sizeof(EntityId)); - else - world->vacantIds = (EntityId*)KF_REALLOCARRAY( - world->vacantIds, - world->vacantIdsCount, - sizeof(EntityId) - ); - - if (world->vacantIds == NULL) { - ALLOCATION_ERROR; - return KFERROR; - } - - world->vacantIds[world->vacantIdsCount - 1] = id; - return KFSUCCESS; -} - -// Not for direct use. -EntityId popVacantId(World * world) { - EntityId id; - - // Already empty. - if (world->vacantIds == NULL) - return ENTITY_ID_NONE; - - id = world->vacantIds[world->vacantIdsCount - 1]; - - // Decrease count. - --world->vacantIdsCount; - - // Free or recallocate. - if (world->vacantIdsCount == 0) { - KF_FREE(world->vacantIds); - world->vacantIds = NULL; - } else { - world->vacantIds = (EntityId*)KF_REALLOCARRAY( - world->vacantIds, - world->vacantIdsCount, - sizeof(EntityId) - ); - } - - return id; -} - -EntityId addEntityToWorld(World * world, Entity entity) { - EntityId id; - EntityId poppedId; - - // Not allocated. - if (world->entities == NULL) { - // Allocate. - world->entities = (Entity*)KF_CALLOC(1, sizeof(Entity)); - world->lookUp = (EntityId*)KF_CALLOC(1, sizeof(EntityId)); - world->entitiesCount = 1; - world->lookUpSize = 1; - - if (world->entities == NULL || world->lookUp == NULL) { - ALLOCATION_ERROR; - return ENTITY_ID_NONE; - } - - // Set entity and id. - world->entities[0] = entity; - world->lookUp[0] = 0; - return 0; - } - - ++world->entitiesCount; - - // Resize. - world->entities = (Entity*)KF_REALLOCARRAY( - world->entities, - world->entitiesCount, - sizeof(Entity) - ); - - if (world->entities == NULL) { - ALLOCATION_ERROR; - return ENTITY_ID_NONE; - } - - // Set entity. - world->entities[world->entitiesCount - 1] = entity; - - // Set look up. - poppedId = popVacantId(world); - - // Got popped id. - if (poppedId != ENTITY_ID_NONE) { - world->lookUp[poppedId] = world->entitiesCount - 1; - return poppedId; - } - - ++world->lookUpSize; - - world->lookUp = (EntityId*)KF_REALLOCARRAY( - world->lookUp, - world->lookUpSize, - sizeof(EntityId) - ); - - if (world->lookUp == NULL) { - ALLOCATION_ERROR; - return ENTITY_ID_NONE; - } - - // Set id. - id = world->lookUpSize - 1; - world->lookUp[id] = world->entitiesCount - 1; - return id; -} - -KfError removeEntityFromWorld(World * world, EntityId id) { - int i; - int pos; - - if (world->entitiesCount == 1) - return KFERROR; - - // Get position in list. - pos = world->lookUp[id]; - - if (pos == ENTITY_ID_NONE) - return KFSUCCESS; - - // Close entity. - closeEntity(&world->entities[pos]); - - // Move back entities. - for (i = pos; i < world->entitiesCount - 1; ++i) - world->entities[i] = world->entities[i + 1]; - - return KFSUCCESS; -} - -void updateWorld(World * world, Game * game) { - int i; - Entity * entity; - - for (i = 0; i < world->entitiesCount; ++i) { - entity = &world->entities[i]; - - // Call update callback. - if (entity->updateCb != NULL) - entity->updateCb(game, entity, i); - } -} - -void drawWorld(World * world, Game * game) { - int i; - Entity * entity; - - for (i = 0; i < world->entitiesCount; ++i) { - entity = &world->entities[i]; - - // Call draw callback. - if (entity->drawCb != NULL) - entity->drawCb(game, entity, i); - } -} |