added virtual batchmaptile

makefile

 
 DEFINES   := -DBPRE -DSOFTWARE_VERSION=0
 ASFLAGS   := -mthumb
-CFLAGS    := -mthumb -mthumb-interwork -g -mcpu=arm7tdmi -fno-inline -mlong-calls -march=armv4t -Og -std=c11 -Wall -Wextra -Wunreachable-code -Isrc/include -fdiagnostics-color $(DEFINES)
+CFLAGS    := -mthumb -mthumb-interwork -g -mcpu=arm7tdmi -fno-inline -mlong-calls -march=armv4t -Og -std=c11 -Wall -Wextra -Wunreachable-code -I$(PAGB_INCLUDE) -Isrc/include -fdiagnostics-color $(DEFINES)
 GRITFLAGS := -ftc -fa
 LDFLAGS   := -z muldefs
 BLDPATH   := object

src/overworld/dyn_npc_hooks.S

+.align 2
+.text
+.thumb
+
+.global npc_spawn_hook:
+npc_spawn_hook:
+    ldrh r0, [r6, #2]
+    bl dynamic_npc_load_palette
+    lsl r1, r0, #4

src/overworld/dynamic_overworld.c

-void npc_spawn()
+#include <pokeagb/pokeagb.h>
+
+enum PalStoreType{
+    UNUSED,
+    NPC,
+    REFLECTION,
+    OTHER
+};
+
+struct PalStoreEntry{
+    enum PalStoreType type;
+    u8 reference_count;
+    u16 tag; 
+};
+
+extern struct PalStoreEntry stored_palettes[16];
+
+u8 dynamic_npc_load_palette(u16 tag)
 {
-    //placeholder for now
-}
+
+}
+

src/specials/batch_maptile.c

+#include <pokeagb/pokeagb.h>
+
+void sp_batchmaptile(void) {
+    u16 tid_from = var_8000;
+    u16 tid_to = var_8001;
+    u8 collision_from = var_8002;
+    u8 collision_to = var_8003;
+
+    for (u8 x = 0; x < virtual_map_header.width; ++x) {
+        for(u8 y = 0; y < virtual_map_header.height; ++y)
+        {
+            struct MapTile *current = &virtual_map_header.data[x + virtual_map_header.width * y];
+            if(current->tile == tid_from && current->permission == collision_from)
+            {
+                current->tile = tid_to;
+                current->permission = collision_to;
+            }
+        }
+    }
+}

src/specials/custom_specials.c

  */
 void sp_random_number();
 
+extern void sp_batchmaptile(void);
+
 
 void get_text_pointer_from_lookup();
 
 
 /* === STATICS === */
 
-static callback special_routines[7] = {
+static callback special_routines[8] = {
     met_play,
     cam_sp_move_camera,
     sp_init_script,
     debug_some_test,
     sp_dns_switch,
     sp_random_number,
-    sp_check_tileset
+    sp_check_tileset,
+    sp_batchmaptile
 };
 
 /* === IMPLEMENTATIONS === */