decompile fldeff_emotion.c (#69)

* decompile fldeff_emotion.c

* formatting

* remove unnecessary << 24

* spaces

1 files changed, 82 insertions, 0 deletions

diff --git a/src/fldeff_emotion.c b/src/fldeff_emotion.c
new file mode 100644
index 000000000..06eb7bd9e
--- /dev/null
+++ b/src/fldeff_emotion.c
@@ -0,0 +1,82 @@
+#include "global.h"
+#include "sprite.h"
+#include "fieldmap.h"
+
+extern u32 gUnknown_0202FF84[];
+
+extern struct SpriteTemplate gSpriteTemplate_839B510;
+extern struct SpriteTemplate gSpriteTemplate_839B528;
+
+bool8 TryGetFieldObjectIdByLocalIdAndMap(u8, u8, u8, u8 *);
+
+void FieldEffectStop(struct Sprite *sprite, u16 a2);
+void sub_8084894(struct Sprite *sprite, u16 a2, u8 a3);
+void objc_exclamation_mark_probably(struct Sprite *sprite);
+
+u8 FldEff_ExclamationMarkIcon1(void)
+{
+    u8 spriteId = CreateSpriteAtEnd(&gSpriteTemplate_839B510, 0, 0, 0x53);
+
+    if (spriteId != 64)
+        sub_8084894(&gSprites[spriteId], 0, 0);
+    
+    return 0;
+}
+
+u8 FldEff_ExclamationMarkIcon2(void)
+{
+    u8 spriteId = CreateSpriteAtEnd(&gSpriteTemplate_839B510, 0, 0, 0x52);
+
+    if (spriteId != 64)
+        sub_8084894(&gSprites[spriteId], 33, 1);
+    
+    return 0;
+}
+
+u8 FldEff_HeartIcon(void)
+{
+    u8 spriteId = CreateSpriteAtEnd(&gSpriteTemplate_839B528, 0, 0, 0x52);
+
+    if (spriteId != 64)
+        sub_8084894(&gSprites[spriteId], 46, 0);
+    
+    return 0;
+}
+
+void sub_8084894(struct Sprite *sprite, u16 a2, u8 a3)
+{
+    sprite->oam.priority = 1;
+    sprite->coordOffsetEnabled = 1;
+    
+    sprite->data0 = gUnknown_0202FF84[0];
+    sprite->data1 = gUnknown_0202FF84[1];
+    sprite->data2 = gUnknown_0202FF84[2];
+    sprite->data3 = -5;
+    sprite->data7 = a2;
+    
+    StartSpriteAnim(sprite, a3);
+}
+
+void objc_exclamation_mark_probably(struct Sprite *sprite)
+{
+    u8 mapObjId;
+
+    if (TryGetFieldObjectIdByLocalIdAndMap(sprite->data0, sprite->data1, sprite->data2, &mapObjId)
+     || sprite->animEnded)
+    {
+        FieldEffectStop(sprite, (u8)sprite->data7);
+    }
+    else
+    {
+        struct Sprite *mapObjSprite = &gSprites[gMapObjects[mapObjId].spriteId];
+        sprite->data4 += sprite->data3;
+        sprite->pos1.x = mapObjSprite->pos1.x;
+        sprite->pos1.y = mapObjSprite->pos1.y - 16;
+        sprite->pos2.x = mapObjSprite->pos2.x;
+        sprite->pos2.y = mapObjSprite->pos2.y + sprite->data4;
+        if (sprite->data4)
+            sprite->data3++;
+        else
+            sprite->data3 = 0;
+    }
+}
\ No newline at end of file