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Fixed level saving and loading

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This commit is contained in:
James Bulman
2025-10-06 19:36:41 +01:00
parent c4cf8f532b
commit c1fb705f68
3 changed files with 132 additions and 83 deletions
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193
code/game/impl/world.c
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@@ -32,7 +32,7 @@ void ProcessEvents(SDL_Event *event, World *world)
{
PlayerInput(event, &world->player);
if(event->type == SDL_EVENT_KEY_DOWN && event->key.key == SDLK_F5){
SaveWorld(world->arena, world);
SaveWorld(world);
}
if(event->type == SDL_EVENT_KEY_DOWN && event->key.key == SDLK_F6){
LoadWorld(world->arena, world);
@@ -50,7 +50,7 @@ void RenderWorld(World *world, D_Context *draw) {
);
}
}
for (int i = 0; i < world->propCount; i++) {
for (U32 i = 0; i < world->propCount; i++) {
if(world->props[i].area == world->player.currentArea) {
D_Rect(
draw,
@@ -75,93 +75,142 @@ void RenderWorld(World *world, D_Context *draw) {
D_Rect(draw, world->player.pos.x, world->player.pos.y, .texture = 1);
}
void SaveWorld(M_Arena *arena, World *world) {
printf("Saving world\n");
#define WRITE(v) FS_FileWrite(file, &(v), sizeof(v), offset); offset += sizeof(v)
#define WRITEN(v, n) FS_FileWrite(file, v, (n) * sizeof(*(v)), offset); offset += ((n) * sizeof(*(v)))
void SaveWorld(World *world) {
printf("--- Saving World ---\n");
printf(" - %d props\n", world->propCount);
printf(" - %d hitboxes\n", world->hitboxCount);
OS_Handle file = FS_FileOpen(S("world.sgdat"), FS_ACCESS_WRITE);
U32 offset = 0;
for(int i = 0; i < WORLD_TILE_TYPE_MAX; i++) {
FS_FileWrite(file, &world->tileTypes[i].tag.count, sizeof(S64), offset);
offset += sizeof(S64);
FS_FileWrite(file, world->tileTypes[i].tag.data, world->tileTypes[i].tag.count, offset);
offset += sizeof(U8) * world->tileTypes[i].tag.count;
FS_FileWrite(file, &world->tileTypes[i].rotation, sizeof(F32), offset);
offset += sizeof(F32);
}
for(int i = 0; i < WORLD_PROP_TYPE_MAX; i++) {
FS_FileWrite(file, &world->propTypes[i].tag.count, sizeof(S64), offset);
offset += sizeof(S64);
FS_FileWrite(file, world->propTypes[i].tag.data, world->propTypes[i].tag.count, offset);
offset += sizeof(U8) * world->propTypes[i].tag.count;
FS_FileWrite(file, &world->propTypes[i].scale, sizeof(F32), offset);
offset += sizeof(F32);
U64 offset = 0;
for (U32 i = 0; i < WORLD_TILE_TYPE_MAX; i++) {
World_Tile *tile = &world->tileTypes[i];
WRITE(tile->tag.count);
WRITEN(tile->tag.data, tile->tag.count);
WRITE(tile->rotation);
}
FS_FileWrite(file, world->propTypes, sizeof(World_PropType)*WORLD_PROP_TYPE_MAX, offset);
offset += sizeof(World_PropType)*WORLD_PROP_TYPE_MAX;
for (U32 i = 0; i < WORLD_PROP_TYPE_MAX; i++) {
World_PropType *type = &world->propTypes[i];
FS_FileWrite(file, &world->propCount, sizeof(U32), offset);
offset += sizeof(U32);
WRITE(type->tag.count);
WRITEN(type->tag.data, type->tag.count);
WRITE(type->scale);
}
FS_FileWrite(file, world->props, sizeof(World_Prop)*WORLD_PROP_MAX, offset);
offset += sizeof(World_Prop)*WORLD_PROP_MAX;
WRITE(world->propCount);
WRITEN(world->props, WORLD_PROP_MAX);
FS_FileWrite(file, &world->hitboxCount, sizeof(U32), offset);
offset += sizeof(U32);
WRITE(world->hitboxCount);
WRITEN(world->hitboxes, WORLD_HITBOX_MAX);
FS_FileWrite(file, world->hitboxes, sizeof(AABB)*WORLD_HITBOX_MAX, offset);
offset += sizeof(AABB)*WORLD_HITBOX_MAX;
FS_FileWrite(file, world->map, sizeof(U32)*WORLD_MAP_MAX, offset);
offset += sizeof(U32)*WORLD_MAP_MAX;
WRITEN(world->map, WORLD_MAP_MAX);
FS_FileClose(file);
printf("Saved world :)\n");
printf("--- World Saved ---\n");
}
void LoadWorld(M_Arena *arena, World *world) {
printf("loading world\n");
OS_Handle file = FS_FileOpen(S("world.sgdat"), FS_ACCESS_READ);
U32 offset = 0;
printf("--- Loading World ---\n");
world->tileTypes = M_ArenaPush(arena, World_Tile, .count=WORLD_TILE_TYPE_MAX);
for(int i = 0; i < WORLD_TILE_TYPE_MAX; i++) {
FS_FileRead(file, &world->tileTypes[i].tag.count, sizeof(S64), offset);
offset += sizeof(S64);
world->tileTypes[i].tag.data = M_ArenaPush(arena, U8, .count=world->tileTypes[i].tag.count);
FS_FileRead(file, world->tileTypes[i].tag.data, world->tileTypes[i].tag.count, offset);
offset += sizeof(U8) * world->tileTypes[i].tag.count;
FS_FileRead(file, &world->tileTypes[i].rotation, sizeof(F32), offset);
offset += sizeof(F32);
}
world->propTypes = M_ArenaPush(arena, World_PropType, .count=WORLD_PROP_TYPE_MAX);
for(int i = 0; i < WORLD_PROP_TYPE_MAX; i++) {
FS_FileRead(file, &world->propTypes[i].tag.count, sizeof(S64), offset);
offset += sizeof(S64);
world->propTypes[i].tag.data = M_ArenaPush(arena, U8, .count=world->propTypes[i].tag.count);
FS_FileRead(file, world->propTypes[i].tag.data, world->propTypes[i].tag.count, offset);
offset += sizeof(U8) * world->propTypes[i].tag.count;
FS_FileRead(file, &world->propTypes[i].scale, sizeof(F32), offset);
offset += sizeof(F32);
}
M_TempScope(0, 0) {
Str8 data = FS_ReadEntireFile(temp.arena, S("world.sgdat"));
FS_FileRead(file, &world->propCount, sizeof(U32), offset);
offset += sizeof(U32);
U8 *base = data.data;
world->props = M_ArenaPush(arena, World_Prop, .count=WORLD_PROP_MAX);
FS_FileRead(file, world->props, sizeof(World_Prop)*WORLD_PROP_MAX, offset);
offset += sizeof(World_Prop)*world->propCount;
// Load tile types
//
world->tileTypes = M_ArenaPush(arena, World_Tile, .count = WORLD_TILE_TYPE_MAX);
for (U32 it = 0; it < WORLD_TILE_TYPE_MAX; ++it) {
World_Tile *type = &world->tileTypes[it];
FS_FileRead(file, &world->hitboxCount, sizeof(U32), offset);
offset += sizeof(U32);
Str8 name;
name.count = *(S64 *) base;
name.data = base + 8;
world->hitboxes = M_ArenaPush(arena, AABB, .count=WORLD_HITBOX_MAX);
FS_FileRead(file, world->hitboxes, sizeof(AABB)*WORLD_HITBOX_MAX, offset);
offset += sizeof(AABB)*world->hitboxCount;
base += 8;
base += name.count;
world->map = M_ArenaPush(arena, U32, .count=WORLD_MAP_MAX);
FS_FileRead(file, world->map, sizeof(U32)*WORLD_MAP_MAX, offset);
offset += sizeof(U32)*WORLD_MAP_MAX;
if (name.count != 0) {
// Means we likely got a vaild tag
type->tag = Str8_Copy(arena, name);
type->rotation = *(F32 *) base;
}
FS_FileClose(file);
printf("loaded world\n");
base += 4;
}
// Load prop types
//
world->propTypes = M_ArenaPush(arena, World_PropType, .count = WORLD_PROP_TYPE_MAX);
for (U32 it = 0; it < WORLD_PROP_TYPE_MAX; ++it) {
World_PropType *type = &world->propTypes[it];
Str8 name;
name.count = *(S64 *) base;
name.data = base + 8;
base += 8;
base += name.count;
if (name.count != 0) {
type->tag = Str8_Copy(arena, name);
type->scale = *(F32 *) base;
}
base += 4;
}
// Prop locations
{
U32 n_props = *(U32 *) base; base += 4;
World_Prop *props = (World_Prop *) base;
world->propCount = n_props;
world->props = M_ArenaPush(arena, World_Prop, .count = WORLD_PROP_MAX);
M_CopySize(world->props, props, n_props * sizeof(World_Prop));
base += (WORLD_PROP_MAX * sizeof(World_Prop));
}
// Hitboxes
//
{
U32 n_hitbox = *(U32 *) base; base += 4;
AABB *boxes = (AABB *) base;
world->hitboxCount = n_hitbox;
world->hitboxes = M_ArenaPush(arena, AABB, .count = WORLD_HITBOX_MAX);
M_CopySize(world->hitboxes, boxes, n_hitbox * sizeof(AABB));
base += (WORLD_HITBOX_MAX * sizeof(AABB));
}
// Map
//
{
U32 *__map = (U32 *) base;
world->map = M_ArenaPush(arena, U32, .count = WORLD_MAP_MAX);
M_CopySize(world->map, __map, WORLD_MAP_MAX * sizeof(U32));
base += (WORLD_MAP_MAX * sizeof(U32));
}
if (base != (data.data + data.count)) {
printf("--- OFFSET MISMATCH ---\n");
}
printf(" - %d props\n", world->propCount);
printf(" - %d hitboxes\n", world->hitboxCount);
printf("--- Loaded World ---\n");
}
}