src/core1: moved SnS to core1

umbenannt:      include/SnS.h -> include/core1/sns.h
        umbenannt:      src/core1/code_1E360.c -> src/core1/sns.c

include/core1/sns.h

@@ -0,0 +1,136 @@
+#ifndef BANJO_KAZOOIE_CORE1_SNS_H
+#define BANJO_KAZOOIE_CORE1_SNS_H
+
+/**
+ * sns sets
+ */
+// Flag set used when collecting an already-unlocked Stop 'n' Swop item in-game
+#define SNS_COLLECTED (0)
+// Flag set used when making a Stop 'n' Swop item visible and collectible in-game
+#define SNS_UNLOCKED  (1)
+
+/**
+ * sns mode (read FROM other game, or write TO other game)
+ */
+#define SNS_MODE_READ  (0)
+#define SNS_MODE_WRITE (1)
+
+/**
+ * sns item keys
+ */
+#define SNS_ITEM_COLLECTED_EggYellow (0x100)
+#define SNS_ITEM_COLLECTED_EggRed    (0x101)
+#define SNS_ITEM_COLLECTED_EggGreen  (0x102)
+#define SNS_ITEM_COLLECTED_EggBlue   (0x103)
+#define SNS_ITEM_COLLECTED_EggPink   (0x104)
+#define SNS_ITEM_COLLECTED_EggCyan   (0x105)
+#define SNS_ITEM_COLLECTED_IceKey    (0x106)
+/* 0x107 unknown */
+#define SNS_ITEM_UNLOCKED_EggYellow  (0x108)
+#define SNS_ITEM_UNLOCKED_EggRed     (0x109)
+#define SNS_ITEM_UNLOCKED_EggGreen   (0x10A)
+#define SNS_ITEM_UNLOCKED_EggBlue    (0x10B)
+#define SNS_ITEM_UNLOCKED_EggPink    (0x10C)
+#define SNS_ITEM_UNLOCKED_EggCyan    (0x10D)
+#define SNS_ITEM_UNLOCKED_IceKey     (0x10E)
+
+#define SNS_NUM_FLAGS (14)
+
+#define SNS_PAYLOAD_DATALEN (0x1C)
+#define SNS_HEADER_MAGIC    (('2B1K' << 2 | 3)) /* 0xC908C52F */
+
+enum StopNSwop_Item {
+    SNS_ITEM_NULL,
+
+    SNS_ITEM_EGG_YELLOW,
+    SNS_ITEM_EGG_RED,
+    SNS_ITEM_EGG_GREEN,
+    SNS_ITEM_EGG_BLUE,
+    SNS_ITEM_EGG_PINK,
+    SNS_ITEM_EGG_CYAN,
+    SNS_ITEM_ICE_KEY,
+
+    SNS_ITEM_length
+};
+
+struct StopNSwop_Bitfield {
+    /* Flags to record that the item is UNLOCKED and can be collected */
+    u32 uEggYellow  : 1;
+    u32 uEggRed     : 1;
+    u32 uEggGreen   : 1;
+    u32 uEggBlue    : 1;
+    u32 uEggPink    : 1;
+    u32 uEggCyan    : 1;
+    u32 uIceKey     : 1;
+
+    /* Flags to record that the item was COLLECTED */
+    u32 cEggYellow : 1;
+    u32 cEggRed    : 1;
+    u32 cEggGreen  : 1;
+    u32 cEggBlue   : 1;
+    u32 cEggPink   : 1;
+    u32 cEggCyan   : 1;
+    u32 cIceKey    : 1;
+
+    u32 : 18;
+};
+
+typedef u32 StopNSwop_Data[SNS_PAYLOAD_DATALEN];
+
+struct SnsPayload {
+    u32            magic;
+    StopNSwop_Data data;
+    u32            pad;
+    u32            checksum[2];
+};
+
+struct GlobalSave {
+    union {
+        struct StopNSwop_Bitfield sns;
+        u32                       snsw;
+    };
+    u8  UNUSED[0x18];
+    u32 crc;
+};
+
+/**
+ * Global save data area.
+ * 
+ * It's saved to the cartridge in a special area at
+ * the end of the EEPROM which is shared by all
+ * three in-game save slots.
+ * 
+ * Only the first two bytes are ever used in the
+ * game, and it's for saving the Stop 'n' Swop items.
+ */
+extern struct GlobalSave gSaveData;
+
+/**
+ * An array of keys that were read in from a payload
+ * at boot.
+ */
+extern StopNSwop_Data snsParsedKeys;
+
+extern s32 snsMinKeyToParse;
+extern s32 snsMaxKeyToParse;
+extern s32 snsParsedCurrPos;
+
+extern bool snsToRestoreItems;
+extern u32  snsBackedUpItems;
+
+// the 4 base areas that outgoing payloads are written to
+extern struct SnsPayload *snsBasePayloadPtr1;
+extern struct SnsPayload *snsBasePayloadPtr2;
+extern struct SnsPayload *snsBasePayloadPtr3;
+extern struct SnsPayload *snsBasePayloadPtr4;
+
+struct SnsPayload *snspayload_find_payload_in_ram      (void);
+struct SnsPayload *snspayload_init_new_payload         (struct SnsPayload *payload);
+
+void sns_unlock_parsed_items                           (void);
+void sns_stub                                          (void);
+
+void snspayload_append_key_to_outgoing_payload         (struct SnsPayload *payload, s32 key);
+void snspayload_calc_checksum                          (struct SnsPayload *payload);
+
+#endif