tileset animation routines

g3headers

@@ -1 +1 @@
-Subproject commit e4bae938451a8cf98b0175876872107ada2d7842
+Subproject commit cb245518f41d5d508f7c1e70e7b751a2ae4546e8

patches/hooks.asm

@@ -106,6 +106,11 @@ _call_via_r1 equ 0x081E3BAC
     bx r3
     .pool
 
+.org 0x0806E568
+    ldr r3, =var_get_hack|1
+    bx r3
+    .pool
+
 .org 0x0806E680
     ldr r1, =flag_set_hack|1
     bx r1

sots-private

@@ -1 +1 @@
-Subproject commit 7d71ecc8ff4f5bf88e8568320f0311a4a15b3ed0
+Subproject commit ad49274282816597ff3b487345aba78c68354212

src/overworld/tileset_animation/main_animator.c

@@ -0,0 +1,52 @@
+#include <pokeagb/pokeagb.h>
+#include <tileset_animation/smoke.h>
+
+struct TilesetAnimation {
+    u16 tile_start;
+    u16 frame_lenght;
+    u16 tile_length;
+    u16 frame_count;
+    const void *image;
+};
+
+const struct TilesetAnimation hesperia_second_animations[] = {
+    {0x114, 7, 4, 5, smokeTiles}, {0, 0, 0, 0, (void *)0xFFFFFFFF},
+};
+
+void animate_from_structure(const struct TilesetAnimation *anim, u16 tile_skip, u16 current_frame) {
+    void *vram_address = (void *)(0x06000000 + (tile_skip * 0x20));
+    u8 current_animation = 0;
+    while (anim[current_animation].image != (void*)0xFFFFFFFF) {
+        void *current_vram = vram_address + (0x20 * anim[current_animation].tile_start);
+        u16 max_frame = anim[current_animation].frame_lenght * anim[current_animation].frame_count;
+        current_frame = current_frame % max_frame;
+        current_frame /= anim[current_animation].frame_lenght;
+        memcpy(current_vram,
+               anim[current_animation].image + (0x20 * anim[current_animation].tile_length * current_frame),
+               anim[current_animation].tile_length * 0x20);
+        current_animation++;
+    }
+}
+
+void main_animator(u16 current_frame) {
+    (void)current_frame;
+}
+
+extern struct MapBlockset maptileset128;
+extern struct MapBlockset maptileset0;
+
+void main_second_animator(u16 current_frame) {
+    animate_from_structure(hesperia_second_animations, 0x280, current_frame);
+}
+
+void main_animator_init(void) {
+    blockset_one_current_tile = 0;
+    blockset_one_max_tile = 0x280;
+    blockset_one_animator = main_animator;
+}
+
+void main_second_animator_init(void) {
+    blockset_two_current_tile = 0;
+    blockset_two_max_tile = 0x100;
+    blockset_two_animator = main_second_animator;
+}

src/savefile/flag_manipulation.c

@@ -100,6 +100,13 @@ void flag_set_hack(u16 flag) {
     }
 }
 
+u16 var_get_hack(u16 var) {
+    u16 *ptr = var_access(var);
+    if (ptr != NULL)
+        return *ptr;
+    return var;
+}
+
 bool var_set_hack(u16 var, u16 val) {
     u16 *ptr = var_access(var);
     if (ptr != NULL) {
@@ -110,10 +117,9 @@ bool var_set_hack(u16 var, u16 val) {
     return false;
 }
 
-bool var_set_script_hack(struct ScriptEnvironment *env)
-{
+bool var_set_script_hack(struct ScriptEnvironment *env) {
     u16 var = script_read_halfword(env);
     u16 val = script_read_halfword(env);
-    var_set_hack(var,val);
+    var_set_hack(var, val);
     return 0;
 }