Generate gamestate overlay table with an `include/tables/` header (#1504)

* Generate gamestate overlay table from an include/tables/ header

* GameStateIndex -> GameStateId, move to z64.h, add GameStateId enum name field to the gamestate table, adjust and improve gamestate table comment

* Shorten zeros in table definition

* Generate linker symbols, other suggested changes

* GAMESTATE_MAX -> GAMESTATE_ID_MAX like the others

1 files changed, 10 insertions, 21 deletions

diff --git a/src/code/graph.c b/src/code/graph.c
index e5309966c..3d53f891c 100644
--- a/src/code/graph.c
+++ b/src/code/graph.c
@@ -116,24 +116,15 @@ void Graph_InitTHGA(GraphicsContext* gfxCtx) {
 GameStateOverlay* Graph_GetNextGameState(GameState* gameState) {
     void* gameStateInitFunc = GameState_GetInit(gameState);
 
-    if (gameStateInitFunc == Setup_Init) {
-        return &gGameStateOverlayTable[0];
-    }
-    if (gameStateInitFunc == MapSelect_Init) {
-        return &gGameStateOverlayTable[1];
-    }
-    if (gameStateInitFunc == ConsoleLogo_Init) {
-        return &gGameStateOverlayTable[2];
-    }
-    if (gameStateInitFunc == Play_Init) {
-        return &gGameStateOverlayTable[3];
-    }
-    if (gameStateInitFunc == TitleSetup_Init) {
-        return &gGameStateOverlayTable[4];
-    }
-    if (gameStateInitFunc == FileSelect_Init) {
-        return &gGameStateOverlayTable[5];
+    // Generates code to match gameStateInitFunc to a gamestate entry and returns it if found
+#define DEFINE_GAMESTATE_INTERNAL(typeName, enumName) \
+    if (gameStateInitFunc == typeName##_Init) {       \
+        return &gGameStateOverlayTable[enumName];     \
     }
+#define DEFINE_GAMESTATE(typeName, enumName, name) DEFINE_GAMESTATE_INTERNAL(typeName, enumName)
+#include "tables/gamestate_table.h"
+#undef DEFINE_GAMESTATE
+#undef DEFINE_GAMESTATE_INTERNAL
 
     LOG_ADDRESS("game_init_func", gameStateInitFunc, "../graph.c", 696);
     return NULL;
@@ -421,16 +412,14 @@ void Graph_ThreadEntry(void* arg0) {
     GraphicsContext gfxCtx;
     GameState* gameState;
     u32 size;
-    GameStateOverlay* nextOvl;
+    GameStateOverlay* nextOvl = &gGameStateOverlayTable[GAMESTATE_SETUP];
     GameStateOverlay* ovl;
     char faultMsg[0x50];
 
-    nextOvl = &gGameStateOverlayTable[0];
-
     osSyncPrintf("グラフィックスレッド実行開始\n"); // "Start graphic thread execution"
     Graph_Init(&gfxCtx);
 
-    while (nextOvl) {
+    while (nextOvl != NULL) {
         ovl = nextOvl;
         Overlay_LoadGameState(ovl);