1. **State the problem:** Calculate the size of the struct `SaveBuffer` given the sizes and counts of its components.
2. **Given data:**
- `COURSE_STAGES_COUNT = 15`
- `NUM_SAVE_FILES = 4` (from enum `SaveFileIndex`)
3. **Analyze each struct size:**
- `SaveFile` contains:
- `u8 capLevel` (1 byte)
- `u8 capArea` (1 byte)
- `Vec3s capPos` (3 shorts, each 2 bytes, total 6 bytes)
- `u32 flags` (4 bytes)
- `u8 courseStars[92]` (92 bytes)
- `u8 courseCoinScores[COURSE_STAGES_COUNT]` (15 bytes)
- `SaveBlockSignature signature` (size unknown, assume $S$ bytes)
Calculate size of `SaveFile` without signature:
$$1 + 1 + 6 + 4 + 92 + 15 = 119 \text{ bytes}$$
So,
$$\text{Size of SaveFile} = 119 + S$$
4. `MainMenuSaveData` contains:
- `u32 coinScoreAges[NUM_SAVE_FILES]` (4 elements × 4 bytes = 16 bytes)
- `u16 soundMode` (2 bytes)
- `SaveBlockSignature signature` ($S$ bytes)
Calculate size without signature:
$$16 + 2 = 18 \text{ bytes}$$
So,
$$\text{Size of MainMenuSaveData} = 18 + S$$
5. `SaveBuffer` contains:
- `files[NUM_SAVE_FILES]` (4 × size of `SaveFile`)
- `menuData` (size of `MainMenuSaveData`)
Calculate total size:
$$4 \times (119 + S) + (18 + S) = 4 \times 119 + 4S + 18 + S = 476 + 5S + 18 = 494 + 5S$$
6. **Final formula:**
$$\boxed{\text{Size of SaveBuffer} = 494 + 5 \times S \text{ bytes}}$$
where $S$ is the size in bytes of `SaveBlockSignature`. Without knowing $S$, this is the most precise answer.
If you provide the size of `SaveBlockSignature`, substitute it into the formula to get the exact size.
Savebuffer Size 223423
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