diff options
Diffstat (limited to 'core/io/resource.cpp')
| -rw-r--r-- | core/io/resource.cpp | 52 |
1 files changed, 42 insertions, 10 deletions
diff --git a/core/io/resource.cpp b/core/io/resource.cpp index efa622d976..91a1386965 100644 --- a/core/io/resource.cpp +++ b/core/io/resource.cpp @@ -33,6 +33,7 @@ #include "core/core_string_names.h" #include "core/io/file_access.h" #include "core/io/resource_loader.h" +#include "core/math/math_funcs.h" #include "core/object/script_language.h" #include "core/os/os.h" #include "scene/main/node.h" //only so casting works @@ -94,12 +95,43 @@ String Resource::get_path() const { return path_cache; } -void Resource::set_subindex(int p_sub_index) { - subindex = p_sub_index; +String Resource::generate_scene_unique_id() { + // Generate a unique enough hash, but still user-readable. + // If it's not unique it does not matter because the saver will try again. + OS::Date date = OS::get_singleton()->get_date(); + OS::Time time = OS::get_singleton()->get_time(); + uint32_t hash = hash_djb2_one_32(OS::get_singleton()->get_ticks_usec()); + hash = hash_djb2_one_32(date.year, hash); + hash = hash_djb2_one_32(date.month, hash); + hash = hash_djb2_one_32(date.day, hash); + hash = hash_djb2_one_32(time.hour, hash); + hash = hash_djb2_one_32(time.minute, hash); + hash = hash_djb2_one_32(time.second, hash); + hash = hash_djb2_one_32(Math::rand(), hash); + + static constexpr uint32_t characters = 5; + static constexpr uint32_t char_count = ('z' - 'a'); + static constexpr uint32_t base = char_count + ('9' - '0'); + String id; + for (uint32_t i = 0; i < characters; i++) { + uint32_t c = hash % base; + if (c < char_count) { + id += String::chr('a' + c); + } else { + id += String::chr('0' + (c - char_count)); + } + hash /= base; + } + + return id; +} + +void Resource::set_scene_unique_id(const String &p_id) { + scene_unique_id = p_id; } -int Resource::get_subindex() const { - return subindex; +String Resource::get_scene_unique_id() const { + return scene_unique_id; } void Resource::set_name(const String &p_name) { @@ -350,8 +382,8 @@ bool Resource::is_translation_remapped() const { #ifdef TOOLS_ENABLED //helps keep IDs same number when loading/saving scenes. -1 clears ID and it Returns -1 when no id stored -void Resource::set_id_for_path(const String &p_path, int p_id) { - if (p_id == -1) { +void Resource::set_id_for_path(const String &p_path, const String &p_id) { + if (p_id == "") { ResourceCache::path_cache_lock.write_lock(); ResourceCache::resource_path_cache[p_path].erase(get_path()); ResourceCache::path_cache_lock.write_unlock(); @@ -362,15 +394,15 @@ void Resource::set_id_for_path(const String &p_path, int p_id) { } } -int Resource::get_id_for_path(const String &p_path) const { +String Resource::get_id_for_path(const String &p_path) const { ResourceCache::path_cache_lock.read_lock(); if (ResourceCache::resource_path_cache[p_path].has(get_path())) { - int result = ResourceCache::resource_path_cache[p_path][get_path()]; + String result = ResourceCache::resource_path_cache[p_path][get_path()]; ResourceCache::path_cache_lock.read_unlock(); return result; } else { ResourceCache::path_cache_lock.read_unlock(); - return -1; + return ""; } } #endif @@ -414,7 +446,7 @@ Resource::~Resource() { HashMap<String, Resource *> ResourceCache::resources; #ifdef TOOLS_ENABLED -HashMap<String, HashMap<String, int>> ResourceCache::resource_path_cache; +HashMap<String, HashMap<String, String>> ResourceCache::resource_path_cache; #endif RWLock ResourceCache::lock; |