From f1f4082f62c53196ac1cdb512fe1dafdbf8946a0 Mon Sep 17 00:00:00 2001
From: TheXaman <48356183+TheXaman@users.noreply.github.com>
Date: Mon, 13 Dec 2021 19:24:19 +0100
Subject: [PATCH] added footprints

---
 include/constants/pokemon_debug.h |  3 ++-
 include/pokedex.h                 |  4 +++
 src/pokemon_debug.c               | 44 +++++++++++++++++++++++++++++++
 3 files changed, 50 insertions(+), 1 deletion(-)

diff --git a/include/constants/pokemon_debug.h b/include/constants/pokemon_debug.h
index e9e1a58a3..26d757fe3 100644
--- a/include/constants/pokemon_debug.h
+++ b/include/constants/pokemon_debug.h
@@ -28,7 +28,8 @@
 #define WIN_INSTRUCTIONS 1
 #define WIN_BOTTOM_LEFT 2
 #define WIN_BOTTOM_RIGHT 3
-#define WIN_END 4
+#define WIN_FOOTPRINT 4
+#define WIN_END 5
 
 //Battle backgrounds
 #define MAP_BATTLE_SCENE_NORMAL       0
diff --git a/include/pokedex.h b/include/pokedex.h
index 49063f6b1..703b9ab8d 100644
--- a/include/pokedex.h
+++ b/include/pokedex.h
@@ -4,6 +4,10 @@
 extern u8 gUnusedPokedexU8;
 extern void (*gPokedexVBlankCB)(void);
 
+#if P_ENABLE_DEBUG == TRUE
+extern const u8 *const gMonFootprintTable[];
+#endif
+
 enum
 {
     DEX_MODE_HOENN,
diff --git a/src/pokemon_debug.c b/src/pokemon_debug.c
index 9f0135be1..a2438453f 100644
--- a/src/pokemon_debug.c
+++ b/src/pokemon_debug.c
@@ -21,6 +21,7 @@
 #include "overworld.h"
 #include "palette.h"
 #include "palette_util.h"
+#include "pokedex.h"
 #include "pokemon.h"
 #include "pokemon_animation.h"
 #include "pokemon_debug.h"
@@ -136,6 +137,16 @@ static const struct WindowTemplate sPokemonDebugWindowTemplate[] =
         .paletteNum = 0xF,
         .baseBlock = 1 + 30 + 60 + 30
     },
+    [WIN_FOOTPRINT] =
+    {
+        .bg = 0,
+        .tilemapLeft = 27,
+        .tilemapTop = 14,
+        .width = 2,
+        .height = 2,
+        .paletteNum = 0xF,
+        .baseBlock = 1 + 30 + 60 + 30 + 150,
+    },
     DUMMY_WIN_TEMPLATE,
 };
 
@@ -750,6 +761,31 @@ static void LoadAndCreateEnemyShadowSpriteCustom(struct PokemonDebugMenu *data,
     gSprites[data->frontShadowSpriteId].invisible = FALSE;
 }
 
+//Tile functions (footprints)
+static void DrawFootprintCustom(u8 windowId, u16 species)
+{
+    u8 footprint[32 * 4] = {0};
+    const u8 * footprintGfx = gMonFootprintTable[species];
+    u32 i, j, tileIdx = 0;
+
+    if (footprintGfx != NULL)
+    {
+        for (i = 0; i < 32; i++)
+        {
+            u8 tile = footprintGfx[i];
+            for (j = 0; j < 4; j++)
+            {
+                u8 value = ((tile >> (2 * j)) & 1 ? 2 : 0);
+                if (tile & (2 << (2 * j)))
+                    value |= 0x20;
+                footprint[tileIdx] = value;
+                tileIdx++;
+            }
+        }
+    }
+    CopyToWindowPixelBuffer(windowId, footprint, sizeof(footprint), 0);
+}
+
 //Battle background functions
 static void LoadBattleBg(u8 battleBgType, u8 battleTerrain)
 {
@@ -1050,6 +1086,10 @@ void CB2_Debug_Pokemon(void)
             //BattleNg Name
             PrintBattleBgName(taskId);
 
+            //Footprint
+            DrawFootprintCustom(WIN_FOOTPRINT, species);
+            CopyWindowToVram(WIN_FOOTPRINT, COPYWIN_GFX);
+
             gMain.state++;
             break;
         case 4:
@@ -1406,6 +1446,10 @@ static void ReloadPokemonSprites(struct PokemonDebugMenu *data)
 
     //Arrow invisibility
     SetArrowInvisibility(data);
+
+    //Footprint
+    DrawFootprintCustom(WIN_FOOTPRINT, species);
+    CopyWindowToVram(WIN_FOOTPRINT, COPYWIN_GFX);
 }
 
 static void Exit_Debug_Pokemon(u8 taskId)