Template:NW4FCurve
Curve
Curves store how animations are performed over time and store the required keys and values for this. They appear in multiple animation subfiles, and their header is of 0x20 bytes size (for BFRES versions earlier than 3.4.0.0, they are of 0x1C bytes size).
Offset | Size | Type | Description | ||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0x00 | 2 | UInt16 | Flags. Sets of bits packed as xxxxxxxx xCCCKKFF.
| ||||||||||||||||||||||||||||||||||||
0x02 | 2 | UInt16 | Key count. | ||||||||||||||||||||||||||||||||||||
0x04 | 4 | UInt32 | Target type. Controls what exactly is manipulated by the curve. Differs in each subfile. | ||||||||||||||||||||||||||||||||||||
0x08 | 4 | Single | Start frame. | ||||||||||||||||||||||||||||||||||||
0x0C | 4 | Single | End frame. | ||||||||||||||||||||||||||||||||||||
0x10 | 4 | Int32 / Single | Data scale. | ||||||||||||||||||||||||||||||||||||
if BFRES version >= 3.4.0.0 | |||||||||||||||||||||||||||||||||||||||
0x14 | 4 | Single | Data delta. | ||||||||||||||||||||||||||||||||||||
0x18 | 4 | Int32 | Frame array offset. | ||||||||||||||||||||||||||||||||||||
0x1C | 4 | Int32 | Key array offset. | ||||||||||||||||||||||||||||||||||||
0x20 | End of Curve | ||||||||||||||||||||||||||||||||||||||
else | |||||||||||||||||||||||||||||||||||||||
0x14 | 4 | Int32 | Frame array offset. | ||||||||||||||||||||||||||||||||||||
0x18 | 4 | Int32 | Key array offset. | ||||||||||||||||||||||||||||||||||||
0x1C | End of Curve |
Frames
The Curve header points to a Frame array which stores values controlling at which frame a Key from the Key array is placed. Thus, the array has as many elements as specified in Key count. The data type of the frames is given in the Curve's Flags.
The end of the array is aligned to 4 bytes.
Keys
The Curve header points to a Key array which stores the values to apply on transformations or parameters which form the animation. Thus, the array has as many elements as specified in Key count, multiplied by the number of elements stored per key (depended upon the CCC Curve Type bits in the Curve Flags as described above). The type of each element is given by the KK Key Type bits in the Curve Flags.
The end of the array is aligned to 4 bytes.