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#include "shared/pch.hh"
#include "shared/world/voxel_registry.hh"
#include "core/math/crc64.hh"
std::unordered_map<std::string, world::VoxelInfoBuilder> world::voxel_registry::builders = {};
std::unordered_map<std::string, voxel_id> world::voxel_registry::names = {};
std::vector<std::shared_ptr<world::VoxelInfo>> world::voxel_registry::voxels = {};
world::VoxelInfoBuilder::VoxelInfoBuilder(const char* name, voxel_type type, bool animated, bool blending)
{
prototype.name = name;
prototype.type = type;
prototype.animated = animated;
prototype.blending = blending;
switch(type) {
case voxel_type::CUBE:
prototype.textures.resize(static_cast<std::size_t>(voxel_face::CUBE__NR));
break;
case voxel_type::CROSS:
prototype.textures.resize(static_cast<std::size_t>(voxel_face::CROSS__NR));
break;
case voxel_type::MODEL:
// Custom models should use a different texture
// resource management that is not a voxel atlas
// TODO: actually implement custom models lol
prototype.textures.resize(0);
break;
default:
// Something really bad should happen if we end up here.
// The outside code would static_cast an int to VoxelType
// and possibly fuck a lot of things up to cause this
spdlog::critical("voxel_registry: {}: unknown voxel type {}", name, static_cast<int>(type));
std::terminate();
}
// Physics properties
prototype.touch_type = voxel_touch::SOLID;
prototype.touch_values = glm::fvec3(0.0f, 0.0f, 0.0f);
prototype.surface = voxel_surface::DEFAULT;
// Things set in future by item_def
prototype.item_pick = NULL_ITEM_ID;
}
world::VoxelInfoBuilder& world::VoxelInfoBuilder::add_texture_default(const char* texture)
{
default_texture.paths.push_back(texture);
return *this;
}
world::VoxelInfoBuilder& world::VoxelInfoBuilder::add_texture(voxel_face face, const char* texture)
{
const auto index = static_cast<std::size_t>(face);
prototype.textures[index].paths.push_back(texture);
return *this;
}
world::VoxelInfoBuilder& world::VoxelInfoBuilder::set_touch(voxel_touch type, const glm::fvec3& values)
{
prototype.touch_type = type;
prototype.touch_values = values;
return *this;
}
world::VoxelInfoBuilder& world::VoxelInfoBuilder::set_surface(voxel_surface surface)
{
prototype.surface = surface;
return *this;
}
voxel_id world::VoxelInfoBuilder::build(void) const
{
const auto it = world::voxel_registry::names.find(prototype.name);
if(it != world::voxel_registry::names.cend()) {
spdlog::warn("voxel_registry: cannot build {}: name already present", prototype.name);
return it->second;
}
std::size_t state_count;
switch(prototype.type) {
case voxel_type::CUBE:
case voxel_type::CROSS:
case voxel_type::MODEL:
state_count = 1;
break;
default:
// Something really bad should happen if we end up here.
// The outside code would static_cast an int to VoxelType
// and possibly fuck a lot of things up to cause this
spdlog::critical("voxel_registry: {}: unknown voxel type {}", prototype.name, static_cast<int>(prototype.type));
std::terminate();
}
if((world::voxel_registry::voxels.size() + state_count) >= MAX_VOXEL_ID) {
spdlog::critical("voxel_registry: voxel registry overflow");
std::terminate();
}
auto new_info = std::make_shared<VoxelInfo>();
new_info->name = prototype.name;
new_info->type = prototype.type;
new_info->animated = prototype.animated;
new_info->blending = prototype.blending;
new_info->textures.resize(prototype.textures.size());
for(std::size_t i = 0; i < prototype.textures.size(); ++i) {
if(prototype.textures[i].paths.empty()) {
new_info->textures[i].paths = default_texture.paths;
new_info->textures[i].cached_offset = SIZE_MAX;
new_info->textures[i].cached_plane = SIZE_MAX;
}
else {
new_info->textures[i].paths = prototype.textures[i].paths;
new_info->textures[i].cached_offset = SIZE_MAX;
new_info->textures[i].cached_plane = SIZE_MAX;
}
}
// Physics properties
new_info->touch_type = prototype.touch_type;
new_info->touch_values = prototype.touch_values;
new_info->surface = prototype.surface;
// Things set in future by item_def
new_info->item_pick = prototype.item_pick;
// Base voxel identifier offset
new_info->base_voxel = world::voxel_registry::voxels.size() + 1;
for(std::size_t i = 0; i < state_count; ++i)
world::voxel_registry::voxels.push_back(new_info);
world::voxel_registry::names.insert_or_assign(new_info->name, new_info->base_voxel);
return new_info->base_voxel;
}
world::VoxelInfoBuilder& world::voxel_registry::construct(const char* name, voxel_type type, bool animated, bool blending)
{
const auto it = world::voxel_registry::builders.find(name);
if(it != world::voxel_registry::builders.cend()) {
return it->second;
}
else {
return world::voxel_registry::builders.emplace(name, VoxelInfoBuilder(name, type, animated, blending)).first->second;
}
}
world::VoxelInfo* world::voxel_registry::find(const char* name)
{
const auto it = world::voxel_registry::names.find(name);
if(it != world::voxel_registry::names.cend()) {
return world::voxel_registry::find(it->second);
}
else {
return nullptr;
}
}
world::VoxelInfo* world::voxel_registry::find(const voxel_id voxel)
{
if((voxel != NULL_VOXEL_ID) && (voxel <= world::voxel_registry::voxels.size())) {
return world::voxel_registry::voxels[voxel - 1].get();
}
else {
return nullptr;
}
}
void world::voxel_registry::purge(void)
{
world::voxel_registry::builders.clear();
world::voxel_registry::names.clear();
world::voxel_registry::voxels.clear();
}
std::uint64_t world::voxel_registry::calcualte_checksum(void)
{
std::uint64_t result = 0;
for(const std::shared_ptr<VoxelInfo>& info : world::voxel_registry::voxels) {
result = math::crc64(info->name, result);
result += static_cast<std::uint64_t>(info->type);
result += static_cast<std::uint64_t>(info->base_voxel);
result += info->blending ? 256 : 1;
}
return result;
}
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