game-string: introduce uthash-powered game string table

include/libtrx/game/game_string.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#define GS_DEFINE(id, value) GameString_Define(#id, value);
+#define GS(id) GameString_Get(#id)
+#define GS_ID(id) (#id)
+
+typedef const char *GAME_STRING_ID;
+
+void GameString_Define(const char *key, const char *value);
+bool GameString_IsKnown(const char *key);
+const char *GameString_Get(const char *key);
+void GameString_Clear(void);

meson.build

@@ -7,11 +7,11 @@ project(
   ],
 )
 
-fs = import('fs')
 staticdeps = get_option('staticdeps')
 tr_version = get_option('tr_version')
 gfx_gl_default_backend = get_option('gfx_gl_default_backend')
 
+fs = import('fs')
 c_compiler = meson.get_compiler('c')
 relative_dir = fs.relative_to(meson.current_source_dir(), meson.global_build_root())
 build_opts = [
@@ -33,6 +33,8 @@ if host_machine.system() == 'darwin'
   staticdeps = false
 endif
 
+uthash = subproject('uthash', default_options: ['warning_level=0'])
+
 null_dep = dependency('', required: false)
 dep_avcodec = dependency('libavcodec', static: staticdeps)
 dep_avformat = dependency('libavformat', static: staticdeps)
@@ -64,6 +66,7 @@ sources = [
   'src/enum_str.c',
   'src/filesystem.c',
   'src/game/items.c',
+  'src/game/game_string.c',
   'src/gfx/2d/2d_renderer.c',
   'src/gfx/2d/2d_surface.c',
   'src/gfx/3d/3d_renderer.c',
@@ -102,6 +105,7 @@ dependencies = [
   dep_swscale,
   dep_zlib,
   dep_opengl,
+  uthash.get_variable('uthash_dep'),
 ]
 
 if dep_backtrace.found() and host_machine.system() == 'linux'

src/game/game_string.c

@@ -0,0 +1,56 @@
+#include "game/game_string.h"
+
+#include "memory.h"
+#include <uthash.h>
+
+typedef struct {
+    char *key;
+    char *value;
+    UT_hash_handle hh;
+} STRING_TABLE_ENTRY;
+
+static STRING_TABLE_ENTRY *m_StringTable = NULL;
+
+void GameString_Define(const char *key, const char *value)
+{
+    STRING_TABLE_ENTRY *entry;
+
+    HASH_FIND_STR(m_StringTable, key, entry);
+    if (entry == NULL) {
+        entry = (STRING_TABLE_ENTRY *)Memory_Alloc(sizeof(STRING_TABLE_ENTRY));
+        entry->key = Memory_DupStr(key);
+        entry->value = Memory_DupStr(value);
+        HASH_ADD_KEYPTR(
+            hh, m_StringTable, entry->key, strlen(entry->key), entry);
+    } else {
+        Memory_Free(entry->value);
+        entry->value = Memory_DupStr(value);
+    }
+}
+
+bool GameString_IsKnown(const char *key)
+{
+    STRING_TABLE_ENTRY *entry;
+    HASH_FIND_STR(m_StringTable, key, entry);
+    return entry != NULL;
+}
+
+const char *GameString_Get(const char *key)
+{
+    STRING_TABLE_ENTRY *entry;
+    HASH_FIND_STR(m_StringTable, key, entry);
+    return entry ? entry->value : NULL;
+}
+
+void GameString_Clear(void)
+{
+    STRING_TABLE_ENTRY *entry, *tmp;
+
+    HASH_ITER(hh, m_StringTable, entry, tmp)
+    {
+        HASH_DEL(m_StringTable, entry);
+        Memory_Free(entry->key);
+        Memory_Free(entry->value);
+        Memory_Free(entry);
+    }
+}

subprojects/uthash.wrap

@@ -0,0 +1,11 @@
+[wrap-file]
+directory = uthash-2.3.0
+source_url = https://github.com/troydhanson/uthash/archive/v2.3.0.tar.gz
+source_filename = uthash-2.3.0.tar.gz
+source_hash = e10382ab75518bad8319eb922ad04f907cb20cccb451a3aa980c9d005e661acc
+patch_filename = uthash_2.3.0-1_patch.zip
+patch_url = https://wrapdb.mesonbuild.com/v2/uthash_2.3.0-1/get_patch
+patch_hash = d0b7cf9788c3735ee6a08bb649c58be1f5fad4b95e50e7681cbdf44882da9d7e
+
+[provide]
+uthash = uthash_dep