jacob/power_play
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

pp refactor

Browse Source
This commit is contained in:
jacob 2025-08-05 17:08:51 -05:00
parent 03d4386cdc
commit a39c649dc3
5 changed files with 248 additions and 172 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/pp/pp_phys.c
View File

@ -33,9 +33,9 @@ void CreateAndUpdateContacts(PhysStepCtx *ctx, f32 elapsed_dt, u64 phys_iteratio
CLD_Shape check0_collider = check0->local_collider;
Aabb aabb = CLD_AabbFromShape(&check0_collider, check0_xf);
SpaceIter iter = space_iter_begin_aabb(space, aabb);
SpaceIter iter = BeginSpaceIterAabb(space, aabb);
SpaceEntry *space_entry;
while ((space_entry = space_iter_next(&iter)) != 0)
while ((space_entry = NextSpaceIterAabb(&iter)) != 0)
{
Entity *check1 = EntityFromId(ss, space_entry->ent);
if (!IsValidAndActive(check1)) continue;
@ -287,7 +287,7 @@ void CreateAndUpdateContacts(PhysStepCtx *ctx, f32 elapsed_dt, u64 phys_iteratio
}
#endif
}
space_iter_end(&iter);
EndSpaceIter(&iter);
}
}
@ -1249,9 +1249,9 @@ f32 DetermineEarliestToi(PhysStepCtx *ctx, f32 step_dt, f32 tolerance, u32 max_i
Aabb aabb_t1 = CLD_AabbFromShape(&e0_collider, e0_xf_t1);
Aabb combined_aabb = CLD_CombineAabb(aabb_t0, aabb_t1);
SpaceIter iter = space_iter_begin_aabb(space, combined_aabb);
SpaceIter iter = BeginSpaceIterAabb(space, combined_aabb);
SpaceEntry *entry;
while ((entry = space_iter_next(&iter)) != 0)
while ((entry = NextSpaceIterAabb(&iter)) != 0)
{
Entity *e1 = EntityFromId(ss, entry->ent);
if (!ShouldSimulate(e1)) continue;
@ -1269,7 +1269,7 @@ f32 DetermineEarliestToi(PhysStepCtx *ctx, f32 step_dt, f32 tolerance, u32 max_i
smallest_t = t;
}
}
space_iter_end(&iter);
EndSpaceIter(&iter);
}
return smallest_t;
@ -1290,14 +1290,14 @@ void UpdateAabbs(PhysStepCtx *ctx)
if (ent->local_collider.count > 0)
{
Xform xf = XformFromEntity(ent);
SpaceEntry *space_entry = space_entry_from_handle(space, ent->space_handle);
SpaceEntry *space_entry = SpaceEntryFromHandle(space, ent->space_handle);
if (!space_entry->valid)
{
space_entry = space_entry_acquire(space, ent->id);
space_entry = AcquireSpaceEntry(space, ent->id);
ent->space_handle = space_entry->handle;
}
Aabb aabb = CLD_AabbFromShape(&ent->local_collider, xf);
space_entry_update_aabb(space_entry, aabb);
UpdateSpaceEntryAabb(space_entry, aabb);
}
}
}

274
src/pp/pp_space.c
View File

@ -1,21 +1,16 @@
/* FIXME: Default space entry & cell pointers to nil */
/* Offset in bytes from start of space struct to start of entry array (assume adjacently allocated) */
#define SPACE_ENTRIES_OFFSET (sizeof(Space) + (sizeof(Space) % alignof(SpaceEntry)))
Readonly SpaceEntry _g_space_entry_nil = ZI;
Readonly SpaceCell _g_space_cell_nil = ZI;
Readonly Space _g_space_nil = ZI;
/* Accessed via NilEntity() */
Readonly SpaceEntry _g_space_entry_nil = { .valid = 0 };
Readonly SpaceCell _g_space_cell_nil = { .valid = 0 };
Readonly Space _g_space_nil = { .valid = 0 };
/* ========================== *
* Space alloc
* ========================== */
////////////////////////////////
//~ Space
/* NOTE:
* The number of bins determines how often tiles will collide in the spatial hash.
* For example, at `num_bins_sqrt` = 256 (65536 bins), tiles <1, 1>, <1, 257>, and <257, 257> will collide. */
Space *space_acquire(f32 cell_size, u32 num_bins_sqrt)
Space *AcquireSpace(f32 cell_size, u32 num_bins_sqrt)
{
Space *space;
{
@ -36,13 +31,13 @@ Space *space_acquire(f32 cell_size, u32 num_bins_sqrt)
return space;
}
void space_release(Space *space)
void ReleaseSpace(Space *space)
{
ReleaseArena(space->cell_arena);
ReleaseArena(space->entry_arena);
}
void space_reset(Space *space)
void ResetSpace(Space *space)
{
PopTo(space->entry_arena, (u64)space->entries - (u64)ArenaBase(space->entry_arena));
ResetArena(space->cell_arena);
@ -53,23 +48,25 @@ void space_reset(Space *space)
space->first_free_entry = 0;
}
Space *space_from_entry(SpaceEntry *entry)
Space *SpaceFromEntry(SpaceEntry *entry)
{
if (entry->valid)
{
if (entry->valid) {
u64 first_entry_addr = (u64)(entry - entry->handle.idx);
Space *space = (Space *)(first_entry_addr - SPACE_ENTRIES_OFFSET);
Space *space = (Space *)(first_entry_addr - SpaceEntriesOffset);
Assert(space->entries == (SpaceEntry *)first_entry_addr);
return space;
} else {
return space_nil();
}
else
{
return NilSpace();
}
}
/* ========================== *
* Cell
* ========================== */
////////////////////////////////
//~ Cell
internal Vec2I32 world_to_cell_coords(f32 cell_size, Vec2 world_pos)
Vec2I32 SpaceCellCoordsFromWorldCoords(f32 cell_size, Vec2 world_pos)
{
f32 x = world_pos.x;
f32 y = world_pos.y;
@ -78,7 +75,7 @@ internal Vec2I32 world_to_cell_coords(f32 cell_size, Vec2 world_pos)
return VEC2I32((i32)x, (i32)y);
}
internal i32 cell_coords_to_bin_index(Space *space, Vec2I32 cell_pos)
i32 SpaceBinIndexFromCellCoords(Space *space, Vec2I32 cell_pos)
{
i32 num_bins_sqrt = space->num_bins_sqrt;
@ -100,13 +97,15 @@ internal i32 cell_coords_to_bin_index(Space *space, Vec2I32 cell_pos)
return bin_index;
}
SpaceCell *space_get_cell(Space *space, Vec2I32 cell_pos)
SpaceCell *SpaceCellFromCellPos(Space *space, Vec2I32 cell_pos)
{
i32 bin_index = cell_coords_to_bin_index(space, cell_pos);
i32 bin_index = SpaceBinIndexFromCellCoords(space, cell_pos);
SpaceCellBin *bin = &space->bins[bin_index];
SpaceCell *result = space_cell_nil();
for (SpaceCell *n = bin->first_cell; n; n = n->next_in_bin) {
if (EqVec2I32(n->pos, cell_pos)) {
SpaceCell *result = NilSpaceCell();
for (SpaceCell *n = bin->first_cell; n; n = n->next_in_bin)
{
if (EqVec2I32(n->pos, cell_pos))
{
result = n;
break;
}
@ -114,34 +113,43 @@ SpaceCell *space_get_cell(Space *space, Vec2I32 cell_pos)
return result;
}
internal void space_cell_node_alloc(Vec2I32 cell_pos, SpaceEntry *entry)
void AcquireSpaceCellNode(Vec2I32 cell_pos, SpaceEntry *entry)
{
Space *space = space_from_entry(entry);
i32 bin_index = cell_coords_to_bin_index(space, cell_pos);
Space *space = SpaceFromEntry(entry);
i32 bin_index = SpaceBinIndexFromCellCoords(space, cell_pos);
SpaceCellBin *bin = &space->bins[bin_index];
/* Find existing cell */
SpaceCell *cell = 0;
for (SpaceCell *n = bin->first_cell; n; n = n->next_in_bin) {
if (EqVec2I32(n->pos, cell_pos)) {
for (SpaceCell *n = bin->first_cell; n; n = n->next_in_bin)
{
if (EqVec2I32(n->pos, cell_pos))
{
cell = n;
break;
}
}
/* Acquire new cell if necessary */
if (!cell) {
if (space->first_free_cell) {
if (!cell)
{
if (space->first_free_cell)
{
cell = space->first_free_cell;
space->first_free_cell = cell->next_free;
} else {
}
else
{
cell = PushStructNoZero(space->cell_arena, SpaceCell);
}
ZeroStruct(cell);
if (bin->last_cell) {
if (bin->last_cell)
{
bin->last_cell->next_in_bin = cell;
cell->prev_in_bin = bin->last_cell;
} else {
}
else
{
bin->first_cell = cell;
}
bin->last_cell = cell;
@ -153,10 +161,13 @@ internal void space_cell_node_alloc(Vec2I32 cell_pos, SpaceEntry *entry)
/* Acquire node */
SpaceCellNode *node;
{
if (space->first_free_cell_node) {
if (space->first_free_cell_node)
{
node = space->first_free_cell_node;
space->first_free_cell_node = node->next_free;
} else {
}
else
{
node = PushStructNoZero(space->cell_arena, SpaceCellNode);
}
ZeroStruct(node);
@ -164,44 +175,56 @@ internal void space_cell_node_alloc(Vec2I32 cell_pos, SpaceEntry *entry)
/* Insert into cell list */
node->cell = cell;
if (cell->last_node) {
if (cell->last_node)
{
cell->last_node->next_in_cell = node;
node->prev_in_cell = cell->last_node;
} else {
}
else
{
cell->first_node = node;
}
cell->last_node = node;
/* Insert into entry list */
node->entry = entry;
if (entry->last_node) {
if (entry->last_node)
{
entry->last_node->next_in_entry = node;
node->prev_in_entry = entry->last_node;
} else {
}
else
{
entry->first_node = node;
}
entry->last_node = node;
}
internal void space_cell_node_release(SpaceCellNode *n)
void ReleaseSpaceCellNode(SpaceCellNode *n)
{
SpaceCell *cell = n->cell;
SpaceEntry *entry = n->entry;
Space *space = space_from_entry(entry);
Space *space = SpaceFromEntry(entry);
SpaceCellBin *bin = cell->bin;
/* Remove from entry list */
{
SpaceCellNode *prev = n->prev_in_entry;
SpaceCellNode *next = n->next_in_entry;
if (prev) {
if (prev)
{
prev->next_in_entry = next;
} else {
}
else
{
entry->first_node = next;
}
if (next) {
if (next)
{
next->prev_in_entry = prev;
} else {
}
else
{
entry->last_node = prev;
}
}
@ -210,31 +233,44 @@ internal void space_cell_node_release(SpaceCellNode *n)
{
SpaceCellNode *prev = n->prev_in_cell;
SpaceCellNode *next = n->next_in_cell;
if (prev) {
if (prev)
{
prev->next_in_cell = next;
} else {
}
else
{
cell->first_node = next;
}
if (next) {
if (next)
{
next->prev_in_cell = prev;
} else {
}
else
{
cell->last_node = prev;
}
}
/* If cell is now empty, release it */
if (!cell->first_node && !cell->last_node) {
if (!cell->first_node && !cell->last_node)
{
/* Remove from bin */
SpaceCell *prev = cell->prev_in_bin;
SpaceCell *next = cell->next_in_bin;
if (prev) {
if (prev)
{
prev->next_in_bin = next;
} else {
}
else
{
bin->first_cell = next;
}
if (next) {
if (next)
{
next->prev_in_bin = prev;
} else {
}
else
{
bin->last_cell = prev;
}
cell->valid = 0;
@ -249,17 +285,18 @@ internal void space_cell_node_release(SpaceCellNode *n)
space->first_free_cell_node = n;
}
/* ========================== *
* Entry
* ========================== */
////////////////////////////////
//~ Entry
SpaceEntry *space_entry_from_handle(Space *space, SpaceEntryHandle handle)
SpaceEntry *SpaceEntryFromHandle(Space *space, SpaceEntryHandle handle)
{
SpaceEntry *entry = space_entry_nil();
SpaceEntry *entry = NilSpaceEntry();
if (handle.gen > 0 && handle.idx < space->num_entries_reserved) {
if (handle.gen > 0 && handle.idx < space->num_entries_reserved)
{
SpaceEntry *tmp = &space->entries[handle.idx];
if (tmp->handle.gen == handle.gen) {
if (tmp->handle.gen == handle.gen)
{
entry = tmp;
}
}
@ -267,15 +304,18 @@ SpaceEntry *space_entry_from_handle(Space *space, SpaceEntryHandle handle)
return entry;
}
SpaceEntry *space_entry_acquire(Space *space, EntityId ent)
SpaceEntry *AcquireSpaceEntry(Space *space, EntityId ent)
{
SpaceEntry *entry = 0;
SpaceEntryHandle handle = ZI;
if (space->first_free_entry) {
if (space->first_free_entry)
{
entry = space->first_free_entry;
space->first_free_entry = entry->next_free;
handle = entry->handle;
} else {
}
else
{
entry = PushStructNoZero(space->entry_arena, SpaceEntry);
handle.idx = space->num_entries_reserved;
handle.gen = 1;
@ -288,61 +328,70 @@ SpaceEntry *space_entry_acquire(Space *space, EntityId ent)
return entry;
}
void space_entry_release(SpaceEntry *entry)
void ReleaseSpaceEntry(SpaceEntry *entry)
{
/* Release nodes */
SpaceCellNode *n = entry->first_node;
while (n) {
while (n)
{
SpaceCellNode *next = n->next_in_entry;
/* TODO: More efficient batch release that doesn't care about maintaining entry list */
space_cell_node_release(n);
ReleaseSpaceCellNode(n);
n = next;
}
Space *space = space_from_entry(entry);
Space *space = SpaceFromEntry(entry);
entry->next_free = space->first_free_entry;
entry->valid = 0;
++entry->handle.gen;
space->first_free_entry = entry;
}
void space_entry_update_aabb(SpaceEntry *entry, Aabb new_aabb)
void UpdateSpaceEntryAabb(SpaceEntry *entry, Aabb new_aabb)
{
Space *space = space_from_entry(entry);
Space *space = SpaceFromEntry(entry);
f32 cell_size = space->cell_size;
Vec2I32 old_cell_p0 = VEC2I32(0, 0);
Vec2I32 old_cell_p1 = VEC2I32(0, 0);
if (entry->first_node) {
if (entry->first_node)
{
Aabb old_aabb = entry->aabb;
old_cell_p0 = world_to_cell_coords(cell_size, old_aabb.p0);
old_cell_p1 = world_to_cell_coords(cell_size, old_aabb.p1);
old_cell_p0 = SpaceCellCoordsFromWorldCoords(cell_size, old_aabb.p0);
old_cell_p1 = SpaceCellCoordsFromWorldCoords(cell_size, old_aabb.p1);
}
Vec2I32 new_cell_p0 = world_to_cell_coords(cell_size, new_aabb.p0);
Vec2I32 new_cell_p1 = world_to_cell_coords(cell_size, new_aabb.p1);
Vec2I32 new_cell_p0 = SpaceCellCoordsFromWorldCoords(cell_size, new_aabb.p0);
Vec2I32 new_cell_p1 = SpaceCellCoordsFromWorldCoords(cell_size, new_aabb.p1);
/* Release outdated nodes */
SpaceCellNode *n = entry->first_node;
while (n) {
while (n)
{
SpaceCell *cell = n->cell;
Vec2I32 cell_pos = cell->pos;
if (cell_pos.x < new_cell_p0.x || cell_pos.x > new_cell_p1.x || cell_pos.y < new_cell_p0.y || cell_pos.y > new_cell_p1.y) {
if (cell_pos.x < new_cell_p0.x || cell_pos.x > new_cell_p1.x || cell_pos.y < new_cell_p0.y || cell_pos.y > new_cell_p1.y)
{
/* Cell is outside of new AABB */
SpaceCellNode *next = n->next_in_entry;
space_cell_node_release(n);
ReleaseSpaceCellNode(n);
n = next;
} else {
}
else
{
n = n->next_in_entry;
}
}
/* Insert new nodes */
for (i32 y = new_cell_p0.y; y <= new_cell_p1.y; ++y) {
for (i32 x = new_cell_p0.x; x <= new_cell_p1.x; ++x) {
if (x != 0 && y != 0 && (x < old_cell_p0.x || x > old_cell_p1.x || y < old_cell_p0.y || y > old_cell_p1.y)) {
for (i32 y = new_cell_p0.y; y <= new_cell_p1.y; ++y)
{
for (i32 x = new_cell_p0.x; x <= new_cell_p1.x; ++x)
{
if (x != 0 && y != 0 && (x < old_cell_p0.x || x > old_cell_p1.x || y < old_cell_p0.y || y > old_cell_p1.y))
{
/* Cell is outside of old AABB */
space_cell_node_alloc(VEC2I32(x, y), entry);
AcquireSpaceCellNode(VEC2I32(x, y), entry);
}
}
}
@ -350,19 +399,19 @@ void space_entry_update_aabb(SpaceEntry *entry, Aabb new_aabb)
entry->aabb = new_aabb;
}
/* ========================== *
* Iter
* ========================== */
////////////////////////////////
//~ Iter
SpaceIter space_iter_begin_aabb(Space *space, Aabb aabb)
SpaceIter BeginSpaceIterAabb(Space *space, Aabb aabb)
{
SpaceIter iter = ZI;
f32 cell_size = space->cell_size;
iter.space = space;
iter.cell_start = world_to_cell_coords(cell_size, aabb.p0);
iter.cell_end = world_to_cell_coords(cell_size, aabb.p1);
if (iter.cell_start.x > iter.cell_end.x || iter.cell_start.y > iter.cell_end.y) {
iter.cell_start = SpaceCellCoordsFromWorldCoords(cell_size, aabb.p0);
iter.cell_end = SpaceCellCoordsFromWorldCoords(cell_size, aabb.p1);
if (iter.cell_start.x > iter.cell_end.x || iter.cell_start.y > iter.cell_end.y)
{
/* Swap cell_start & cell_end */
Vec2I32 tmp = iter.cell_start;
iter.cell_start = iter.cell_end;
@ -377,7 +426,7 @@ SpaceIter space_iter_begin_aabb(Space *space, Aabb aabb)
return iter;
}
SpaceEntry *space_iter_next(SpaceIter *iter)
SpaceEntry *NextSpaceIterAabb(SpaceIter *iter)
{
Space *space = iter->space;
Aabb iter_aabb = iter->aabb;
@ -387,36 +436,49 @@ SpaceEntry *space_iter_next(SpaceIter *iter)
i32 span = cell_end.x - cell_start.x;
SpaceCellNode *next_node = 0;
if (cell_cur.x >= cell_start.x && cell_cur.x <= cell_end.x && cell_cur.y >= cell_start.y && cell_cur.y <= cell_end.y) {
if (cell_cur.x >= cell_start.x && cell_cur.x <= cell_end.x && cell_cur.y >= cell_start.y && cell_cur.y <= cell_end.y)
{
/* Started */
Assert(iter->prev != 0);
next_node = iter->prev->next_in_cell;
} else if (cell_cur.x > cell_end.x || cell_cur.y > cell_end.y) {
}
else if (cell_cur.x > cell_end.x || cell_cur.y > cell_end.y)
{
/* Ended */
return 0;
}
for (;;) {
if (next_node) {
for (;;)
{
if (next_node)
{
SpaceEntry *entry = next_node->entry;
Aabb entry_aabb = entry->aabb;
if (CLD_TestAabb(entry_aabb, iter_aabb)) {
if (CLD_TestAabb(entry_aabb, iter_aabb))
{
break;
} else {
}
else
{
next_node = next_node->next_in_cell;
}
} else {
}
else
{
/* Reached end of cell, find next cell */
b32 nextx = (cell_cur.x + 1) <= cell_end.x;
b32 nexty = (nextx == 0) && ((cell_cur.y + 1) <= cell_end.y);
if (nextx || nexty) {
if (nextx || nexty)
{
cell_cur.x += nextx - (span * nexty);
cell_cur.y += nexty;
cell_cur.x += (cell_cur.x == 0);
cell_cur.y += (cell_cur.y == 0);
SpaceCell *cell = space_get_cell(space, cell_cur);
SpaceCell *cell = SpaceCellFromCellPos(space, cell_cur);
next_node = cell->first_node;
} else {
}
else
{
/* Reached end of iter */
cell_cur.x += 1;
cell_cur.y += 1;

119
src/pp/pp_space.h
View File

@ -1,17 +1,19 @@
typedef struct SpaceEntryHandle SpaceEntryHandle;
struct SpaceEntryHandle {
////////////////////////////////
//~ Space entry types
Struct(SpaceEntryHandle)
{
u64 idx;
u64 gen;
};
typedef struct SpaceCellNode SpaceCellNode;
typedef struct SpaceEntry SpaceEntry;
struct SpaceEntry {
Struct(SpaceEntry)
{
b32 valid;
SpaceEntryHandle handle;
SpaceCellNode *first_node;
SpaceCellNode *last_node;
struct SpaceCellNode *first_node;
struct SpaceCellNode *last_node;
Aabb aabb;
EntityId ent;
@ -19,13 +21,15 @@ struct SpaceEntry {
SpaceEntry *next_free;
};
////////////////////////////////
//~ Space cell types
/* Links a cell to a entry.
* Acts as both a node in the list of entries contained by the cell, and a node in the list of cells containing the entry. */
typedef struct SpaceCell SpaceCell;
typedef struct SpaceCellNode SpaceCellNode;
struct SpaceCellNode {
Struct(SpaceCellNode)
{
SpaceEntry *entry;
SpaceCell *cell;
struct SpaceCell *cell;
/* For list of all entries contained by cell */
SpaceCellNode *prev_in_cell;
@ -38,30 +42,32 @@ struct SpaceCellNode {
SpaceCellNode *next_free;
};
typedef struct SpaceCellBin SpaceCellBin;
typedef struct SpaceCell SpaceCell;
struct SpaceCell {
Struct(SpaceCell)
{
b32 valid;
Vec2I32 pos;
SpaceCellNode *first_node;
SpaceCellNode *last_node;
SpaceCellBin *bin;
struct SpaceCellBin *bin;
SpaceCell *prev_in_bin;
SpaceCell *next_in_bin;
SpaceCell *next_free;
};
typedef struct SpaceCellBin SpaceCellBin;
struct SpaceCellBin {
Struct(SpaceCellBin)
{
SpaceCell *first_cell;
SpaceCell *last_cell;
};
typedef struct Space Space;
struct Space {
////////////////////////////////
//~ Space types
Struct(Space)
{
b32 valid;
f32 cell_size;
@ -78,8 +84,8 @@ struct Space {
SpaceEntry *first_free_entry;
};
typedef struct SpaceIter SpaceIter;
struct SpaceIter {
Struct(SpaceIter)
{
Aabb aabb;
Space *space;
Vec2I32 cell_start;
@ -88,57 +94,66 @@ struct SpaceIter {
SpaceCellNode *prev;
};
/* ========================== *
* Nil
* ========================== */
////////////////////////////////
//~ Nil types
Inline SpaceEntry *space_entry_nil(void)
/* Offset in bytes from start of space struct to start of entry array (assume adjacently allocated) */
#define SpaceEntriesOffset (sizeof(Space) + (sizeof(Space) % alignof(SpaceEntry)))
/* Accessed via NilEntity() */
extern Readonly SpaceEntry _g_space_entry_nil;
extern Readonly SpaceCell _g_space_cell_nil;
extern Readonly Space _g_space_nil;
////////////////////////////////
//~ Nil helpers
Inline SpaceEntry *NilSpaceEntry(void)
{
extern Readonly SpaceEntry _g_space_entry_nil;
return &_g_space_entry_nil;
}
Inline SpaceCell *space_cell_nil(void)
Inline SpaceCell *NilSpaceCell(void)
{
extern Readonly SpaceCell _g_space_cell_nil;
return &_g_space_cell_nil;
}
Inline Space *space_nil(void)
Inline Space *NilSpace(void)
{
extern Readonly Space _g_space_nil;
return &_g_space_nil;
}
/* ========================== *
* Space
* ========================== */
////////////////////////////////
//~ Space
Space *space_acquire(f32 cell_size, u32 num_bins_sqrt);
void space_release(Space *space);
void space_reset(Space *space);
Space *AcquireSpace(f32 cell_size, u32 num_bins_sqrt);
void ReleaseSpace(Space *space);
void ResetSpace(Space *space);
Space *SpaceFromEntry(SpaceEntry *entry);
Space *space_from_entry(SpaceEntry *entry);
////////////////////////////////
//~ Cell
/* ========================== *
* Cell
* ========================== */
Vec2I32 SpaceCellCoordsFromWorldCoords(f32 cell_size, Vec2 world_pos);
i32 SpaceBinIndexFromCellCoords(Space *space, Vec2I32 cell_pos);
SpaceCell *SpaceCellFromCellPos(Space *space, Vec2I32 cell_pos);
void AcquireSpaceCellNode(Vec2I32 cell_pos, SpaceEntry *entry);
void ReleaseSpaceCellNode(SpaceCellNode *n);
SpaceCell *space_get_cell(Space *space, Vec2I32 cell_pos);
////////////////////////////////
//~ Entry
/* ========================== *
* Entry
* ========================== */
SpaceEntry *SpaceEntryFromHandle(Space *space, SpaceEntryHandle handle);
SpaceEntry *AcquireSpaceEntry(Space *space, EntityId ent);
void ReleaseSpaceEntry(SpaceEntry *entry);
void UpdateSpaceEntryAabb(SpaceEntry *entry, Aabb new_aabb);
SpaceEntry *space_entry_from_handle(Space *space, SpaceEntryHandle handle);
SpaceEntry *space_entry_acquire(Space *space, EntityId entity);
void space_entry_release(SpaceEntry *entry);
void space_entry_update_aabb(SpaceEntry *entry, Aabb new_aabb);
////////////////////////////////
//~ Iter
/* ========================== *
* Iter
* ========================== */
SpaceIter space_iter_begin_aabb(Space *space, Aabb aabb);
SpaceEntry *space_iter_next(SpaceIter *iter);
#define space_iter_end(i)
SpaceIter BeginSpaceIterAabb(Space *space, Aabb aabb);
SpaceEntry *NextSpaceIterAabb(SpaceIter *iter);
#define EndSpaceIter(i)

6
src/pp/pp_step.c
View File

@ -4,18 +4,18 @@
SimAccel AcquireSimAccel(void)
{
SimAccel accel = ZI;
accel.space = space_acquire(SPACE_CELL_SIZE, SPACE_CELL_BINS_SQRT);
accel.space = AcquireSpace(SPACE_CELL_SIZE, SPACE_CELL_BINS_SQRT);
return accel;
}
void ReleaseSimAccel(SimAccel *accel)
{
space_release(accel->space);
ReleaseSpace(accel->space);
}
void ResetSimAccel(Snapshot *ss, SimAccel *accel)
{
space_reset(accel->space);
ResetSpace(accel->space);
/* Reset ent space handles */
for (u64 sim_ent_index = 0; sim_ent_index < ss->num_ents_reserved; ++sim_ent_index)

3
src/pp/pp_step.h
View File

@ -12,8 +12,7 @@ Struct(SimAccel)
////////////////////////////////
//~ Step ctx
typedef struct SimStepCtx SimStepCtx;
struct SimStepCtx
Struct(SimStepCtx)
{
b32 is_master;
SimAccel *accel;