added tile block check special

.vscode/settings.json

@@ -1,6 +1,7 @@
 {
     "files.associations": {
         "filesystem": "cpp",
-        "regex": "cpp"
+        "regex": "cpp",
+        "xlocmon": "cpp"
     }
 }

bpre.sym

@@ -27,6 +27,9 @@ camera_move_and_redraw = 0x0805ACB4|1;
 calc_circle = 0x0807EE2C|1;
 random = 0x08044EC8|1;
 
+current_map_block_id_at = 0x08058E48|1;
+player_get_pos_to = 0x0805C538|1;
+
 palette_unfaded_buffer = 0x020371F8;
 palette_faded_buffer = 0x020375F8;
 current_mapheader = 0x02036DFC;

src/include/map.h

@@ -0,0 +1,63 @@
+#ifndef MAP_H_
+#define MAP_H_
+
+#include <types.h>
+
+enum map_type {
+    UNK_00,
+    VILLAGE,
+    CITY,
+    ROUTE,
+    CELLAR,
+    UNDERWATER,
+    UNK_07,
+    UNK_08,
+    INSIDE,
+    SECRET_BASE
+};
+
+struct blockset {
+    u8 is_compressed;
+    u8 is_secondary;
+    u16 padding;
+    void* tiles;
+    void* palette;
+    void* block_tiles;
+    void* funcptr;
+    void* behavior;
+};
+
+struct mapdata_header {
+    u32 width;
+    u32 height;
+    void* border;
+    void* data;
+    struct blockset* blockset_one;
+    struct blockset* blockset_two;
+    u8 border_width;
+    u8 border_height;
+    u16 unknown;
+};
+
+struct mapheader {
+    struct mapdata_header* data_header;
+    void* events;
+    void* scripts;
+    void* connections;
+    u16 music;
+    u16 mapindex;
+    u8 name;
+    u8 cave;
+    u8 weather;
+    enum map_type maptype;
+    u8 field18;
+    u8 escape_rope;
+    u8 showname;
+    u8 battletype;
+};
+
+extern struct mapheader current_mapheader;
+
+u16 current_map_block_id_at(u16 x, u16 y);
+void player_get_pos_to(u16* x, u16* y);
+#endif //MAP_H_

src/overworld/grass_animation.c

@@ -4,6 +4,7 @@
 #include <agb_debug.h>
 
 extern u16 current_map_block_role_get(u16 x, u16 y);
+void sp_check_tileset(void);
 
 void grass_step_general(struct npc_state *npc)
 {
@@ -30,6 +31,6 @@ void grass_step_elastic(struct npc_state *npc)
     current_oe_state.field_1C = 1;
 
     /* use variable to determine the oe animation to play */
-
+    sp_check_tileset();
     (void)oe_exec(4);
 }

src/specials/check_tileset.c

@@ -0,0 +1,44 @@
+/****************************************************************************
+ * Copyright (C) 2015-2017 by the SotS Team                                 *
+ *                                                                          *
+ * This file is part of Sovereign of the Skies.                             *
+ *                                                                          *
+ *   Sovereign of the Skies is free software: you can redistribute it       *
+ *   and/or modify it                                                       *
+ *   under the terms of the GNU Lesser General Public License as published  *
+ *   by the Free Software Foundation, either version 3 of the License, or   *
+ *   (at your option) any later version provided you include a copy of the  *
+ *   licence and this header.                                               *
+ *                                                                          *
+ *   Sovereign of the Skies is distributed in the hope that it will be      *
+ *   useful, but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
+ *   GNU Lesser General Public License for more details.                    *
+ *                                                                          *
+ *   You should have received a copy of the GNU Lesser General Public       *
+ *   License along with Sovereign of the Skies.                             *
+ *   If not, see <http://www.gnu.org/licenses/>.                            *
+ ****************************************************************************/
+
+ /**
+ * @file check_tileset.c
+ * @author Sturmvogel
+ * @date 21 may 2017
+ * @brief Check tileset stuff and store on last result
+ * 
+ */
+
+#include <map.h>
+#include <game_engine.h>
+#include <agb_debug.h>
+
+void sp_check_tileset(void)
+{
+    u16 x;
+    u16 y;
+    player_get_pos_to(&x, &y);
+    dprintf("reading from %d %d\n", x,y);
+    u16 block_id = current_map_block_id_at(x,y);
+    dprintf("block id: %d\n", block_id);
+    var_set(0x800D, current_map_block_id_at(x,y));
+}

src/specials/custom_specials.c

@@ -69,6 +69,8 @@ void sp_random_number();
 
 void get_text_pointer_from_lookup();
 
+void sp_check_tileset();
+
 /* === STATICS === */
 
 static callback special_routines[7] = {
@@ -78,6 +80,7 @@ static callback special_routines[7] = {
     debug_some_test,
     sp_dns_switch,
     sp_random_number,
+    sp_check_tileset
 };
 
 /* === IMPLEMENTATIONS === */