Extracted JokerObject and CardObject common functionalities to SpriteObject, removing duplicate code and dangerous casts.

include/sprite.h

@@ -2,6 +2,7 @@
 #define SPRITE_H
 
 #include <tonc.h>
+#include <maxmod.h>
 
 typedef struct 
 {
@@ -11,6 +12,22 @@ typedef struct
     POINT pos;
 } Sprite;
 
+// A sprite object is a sprite that is selectable and movable in animation
+typedef struct
+{
+    Sprite* sprite;
+    FIXED tx, ty; // target position
+    FIXED x, y; // position
+    FIXED vx, vy; // velocity
+    FIXED tscale;
+    FIXED scale;
+    FIXED vscale;
+    FIXED trotation; // this never gets used so i might remove it later
+    FIXED rotation;
+    FIXED vrotation;
+    bool selected;
+} SpriteObject;
+
 // Sprite methods
 Sprite *sprite_new(u16 a0, u16 a1, u32 tid, u32 pb, int sprite_index);
 Sprite *affine_sprite_new(u16 a0, u16 a1, u32 tid, u32 pb);
@@ -28,4 +45,17 @@ INLINE void sprite_position(Sprite *sprite, int x, int y)
 void sprite_init();
 void sprite_draw();
 
+// SpriteObject methods
+SpriteObject *sprite_object_new();
+void sprite_object_destroy(SpriteObject **sprite_object);
+void sprite_object_set_sprite(SpriteObject* sprite_object, Sprite* sprite);
+void sprite_object_reset_transform(SpriteObject* sprite_object);
+void sprite_object_update(SpriteObject *sprite_object);
+void sprite_object_shake(SpriteObject* sprite_object, mm_word sound_id);
+
+void sprite_object_set_selected(SpriteObject* sprite_object, bool selected);
+bool sprite_object_is_selected(SpriteObject* sprite_object);
+Sprite* sprite_object_get_sprite(SpriteObject* sprite_object);
+
+
 #endif // SPRITE_H