doylet/feely_pona
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Add hp, Add attack collision detection, Add destroy on death

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This commit is contained in:
Joshalosh 2023-09-26 22:34:42 +10:00 committed by doylet
parent 589d56dd82
commit 5e441e1a13
3 changed files with 34 additions and 0 deletions
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30
feely_pona.cpp
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@ -816,6 +816,36 @@ void FP_Update(TELY_Platform *platform, FP_Game *game, TELY_PlatformInput *input
}
}
// NOTE: Attack collisions =================================================================
{
// NOTE: Check if there's an active attack box
if (entity->attack_box_size.x != 0 && entity->attack_box_size.y != 0) {
Dqn_Rect entity_attack_box = {};
// NOTE: Convert from centre origin to top-left origin
entity_attack_box.pos = entity->local_pos + entity->attack_box_offset - (entity->attack_box_size * 0.5f);
entity_attack_box.size = entity->attack_box_size;
for (FP_GameEntityIterator target_it = {}; FP_Game_DFSPreOrderWalkEntityTree(game, &target_it, game->root_entity);) {
FP_GameEntity *target = target_it.entity;
if (target->handle == entity->handle)
continue;
// TODO(josh): This check should be updated based on an entity attackable flag
if (target->flags & FP_GameEntityFlag_Attackable) {
Dqn_Rect target_world_hit_box = FP_Game_CalcEntityWorldHitBox(game, target->handle);
if (Dqn_Rect_Intersects(entity_attack_box, target_world_hit_box)) {
target->hp -= 1;
if (target->hp <= 0) {
FP_Game_DeleteEntity(game, target->handle);
}
}
}
}
}
}
// NOTE: Move entity by mouse ==============================================================
if (game->active_entity == entity->handle && entity->flags & FP_GameEntityFlag_MoveByMouse) {
if (entity->flags & FP_GameEntityFlag_MoveByMouse) {

2
feely_pona_entity.cpp
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@ -44,11 +44,13 @@ static FP_GameEntityHandle FP_Entity_CreateSmoochie(FP_Game *game, Dqn_V2 pos, D
va_end(args);
entity->type = FP_EntityType_Smoochie;
entity->hp = 3;
entity->local_pos = pos;
entity->sprite_height.meters = 1.6f;
entity->local_hit_box_size = Dqn_V2_InitNx2(0.4f, 1.6f) * FP_Game_MetersToPixels(game);
FP_Entity_AddDebugEditorFlags(game, entity->handle);
entity->flags |= FP_GameEntityFlag_NonTraversable;
entity->flags |= FP_GameEntityFlag_Attackable;
return result;
}

2
feely_pona_game.h
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@ -15,6 +15,7 @@ enum FP_GameEntityFlag
FP_GameEntityFlag_MobSpawner = 1 << 7,
FP_GameEntityFlag_MobSpawnerWaypoint = 1 << 8,
FP_GameEntityFlag_AggrosWhenNearTerry = 1 << 9,
FP_GameEntityFlag_Attackable = 1 << 9,
};
enum FP_GameShapeType
@ -118,6 +119,7 @@ struct FP_GameEntity
uint64_t spawn_cap;
uint64_t flags;
uint64_t hp;
FP_GameDirection direction;
Dqn_V2 local_pos;
Dqn_f64 alive_time_s;