doylet/feely_pona
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fp: Improve the A* situation, but its not quite fixed yet

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doyle 2023-09-23 17:38:10 +10:00
parent a8f5aa41a5
commit 1062e138d6
1 changed files with 17 additions and 1 deletions
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18
feely_pona_game.cpp
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@ -481,7 +481,8 @@ static Dqn_Slice<Dqn_V2I> FP_Game_AStarPathFind(FP_Game *game,
DQN_DEFER { Dqn_DSMap_Deinit(&astar_info); };
// NOTE: Enumerate the entities that are collidable ============================================
auto zone_enum_collidables = Dqn_Profiler_BeginZoneWithIndex(DQN_STRING8("FP_Update: A* enumerate collidables"), FP_ProfileZone_FPUpdate_AStarEnumerateCollidables);
bool dest_tile_is_non_traversable = false;
auto zone_enum_collidables = Dqn_Profiler_BeginZoneWithIndex(DQN_STRING8("FP_Update: A* enumerate collidables"), FP_ProfileZone_FPUpdate_AStarEnumerateCollidables);
for (FP_GameEntityIterator it = {}; FP_Game_DFSPreOrderWalkEntityTree(game, &it, game->root_entity); ) {
FP_GameEntity const *walk_entity = it.entity;
if (entity == walk_entity->handle)
@ -502,6 +503,9 @@ static Dqn_Slice<Dqn_V2I> FP_Game_AStarPathFind(FP_Game *game,
FP_GameAStarNode *node = Dqn_DSMap_MakeKeyU64(&astar_info, tile_u64).value;
node->non_traversable = true;
node->tile = Dqn_V2I_InitNx2(x, y);
if (node->tile == dest_tile)
dest_tile_is_non_traversable = true;
}
}
}
@ -556,6 +560,16 @@ static Dqn_Slice<Dqn_V2I> FP_Game_AStarPathFind(FP_Game *game,
Dqn_DSMapResult<FP_GameAStarNode> next_cost_result = Dqn_DSMap_MakeKeyU64(&astar_info, next_tile_u64);
next_cost_result.value->tile = next_tile;
// NOTE: We got as close as possible, we know it's impossible to
// reach, we will stop here.
// TODO(doyle): Doesn't work in the general case, what if there's a
// 2 consecutive blocks that are not traversable, we will never
// realise that
if (dest_tile == next_tile && dest_tile_is_non_traversable) {
Dqn_FArray_Clear(&frontier);
break;
}
if (next_cost_result.value->non_traversable)
continue;
@ -599,6 +613,7 @@ static Dqn_Slice<Dqn_V2I> FP_Game_AStarPathFind(FP_Game *game,
}
Dqn_Profiler_EndZone(zone_astar_expand);
#if 0
TELY_Renderer *renderer = &platform->renderer;
for (uint32_t old_index = 1 /*Sentinel*/; old_index < astar_info.occupied; old_index++) {
Dqn_DSMapSlot<FP_GameAStarNode> const *slot = astar_info.slots + old_index;
@ -606,6 +621,7 @@ static Dqn_Slice<Dqn_V2I> FP_Game_AStarPathFind(FP_Game *game,
Dqn_V2 pos = FP_Game_TilePosToWorldPos(game, node->tile) + (game->tile_size * .5f);
TELY_Render_CircleColourV4(renderer, pos, 4.f, TELY_RenderShapeMode_Fill, TELY_COLOUR_BLUE_CADET_V4);
}
#endif
Dqn_usize slice_size = 0;
for (Dqn_V2I it = last_successful_tile; it != src_tile; slice_size++) {