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--- file_formats:lev [2007/10/31 00:25]
+++ file_formats:lev [2007/10/31 00:25] (current)
@@ Line 1: / Line 1: @@
+=====LEV File Specification=====
+====Main Header====
+bytes:  size of the level file header \\
+bytes: (with 3 bytes of padding) that describes the version number of the header \\
+bytes: Unknown/Unused \\
+bytes: A 32 bit integer that refers to the position in the file where some now obsolete data is. \\
+bytes: Unknown/Unused \\
+bytes: A 32 bit integer that refers to the position in the file where the navigation data is. \\
+===Map Data Header===
+byte: size of the file header \\
+bytes: An 8 bit integer (with 3 bytes of padding) that describes the version number of the header \\
+bytes: A 64 bit integer that describes how many Unique IDs for things that have been used. \\
+bytes: width (32 bit integer) \\
+bytes: height (32 bit integer) \\
+byte: A Boolean which is always true  \\
+====Map Data====
+bytes: A "palette" of themes that can be on the height field \\
+bytes: Ambient Sound Version. 3 = Global, 0 = Use Heightmap Sound \\
+bytes: The number of sound themes that are available. \\
+bytes: A "palette" of sound atmosphere themes that can be on the height field. \\
+bytes: A checksum. this exists only if the map header pad byte 2 is 9
+loop of number of sound themes - 1
+  uint string length
+  char[string length] string
+endloop
+===HeightMap===
+Then, the real meat of the file: the heightfield data. (Width+1)*(Height+1)
+(read in above) cells are written out. A cell consists of the following data:
+bytes: A 32 bit integer that's the size of the cell being written (should always be the same for every cell). \\
+bytes: An 8 bit integerthat describes the version number of the cell \\
+bytes: A 32 bit floating point number that's the height of the ground at that point divided by 2048. \\
+byte: Should be 0. \\
+bytes: These are actually an array of 3 single bytes. Each byte refers to a ground theme in the palette defined in the header. \\
+bytes: A 2 element array that contains the strength of the ground themes in the previous array. The 2 numbers should add up to 255 (less if 3 themes are used). \\
+byte: A Boolean that specifies whether the hero can walk on the ground at this point. \\
+byte: A Boolean that specifies whether the camera is allowed to pass over the ground at this point. \\
+byte: Sound Theme \\
+byte: Should be 0. \\
+byte: Boolean that specifies whether this cell is a shore point \\
+byte: Unknown/Unused \\
+===Sound Map===
+There then follows a Width*Height amount of cells. These cells
+have the following format:
+bytes: A 32 bit integer that's the size of the cell being written. \\
+byte: An 8 bit integer that describes the version number of the cell \\
+bytes: A 3 element array with each byte referring to a sound atmosphere theme in the palette defined in the header. \\
+bytes: A 2 element array that contains the strength of the sound atmosphere themes in the previous array. The 2 numbers should add up to 255 (less if 3 themes are used) \\
+byte: A sound theme palette index. \\
+=====Navigation Data=====
+====Main Header====
+bytes - Start of Navigation Data \\
+bytes - Number of Navigation Sections \\
+[Section Names] \\
+<code>
+bytes - String Length
+[String Length] String
+bytes - Start of Section's Navigation Data
+</code>
+[/Section Names]
+====Section Header====
+bytes - Size \\
+bytes - Version \\
+bytes - Level Width \\
+bytes - Level Height \\
+bytes - Unknown //Number of levels, see navigation nodes//  \\
+bytes - Number Interactive Nodes \\
+[[lev#Interactive Nodes|[Interactive Nodes]]] //Location of Interactive Items//\\
+bytes - Number of SubSets \\
+bytes - Number of Level Nodes \\
+[[lev#Level Nodes|[Level Nodes]]] //Walkable Area layered by accuracy// \\
+===Interactive Nodes===
+bytes - X coord \\
+bytes - Y coord \\
+bytes - SubSet \\
+===Level Nodes===
+A Subset has 7 Layers (0-6), each defining blocks of walkable area. \\
+Layer 0 = 32 X 32 \\
+Layer 1 = 16 X 16 \\
+Layer 2 = 8 X 8 \\
+Layer 3 = 4 X 4 \\
+Layer 4 = 2 X 2 \\
+Layer 5 = 1 X 1 \\
+Layer 6 = 0.5 X 0.5 \\
+==Standard and Root Nodes==
+**//00 00 00 00//** \\
+**//00 01 00 00//** \\
+<code>
+struct NAV_STANDARD_NODE {
+  BYTE unknown
+  BYTE ROOT
+  BYTE unknown
+  BYTE END
+  BYTE	Layer; //0-6
+  BYTE	SubSet;
+  FLOAT	X Coord;
+  FLOAT	Y Coord;
+  DWORD	NodeID;
+  DWORD	ChildNode;  //Top Right
+  DWORD	ChildNode;  //Top Left
+  DWORD	ChildNode;  //Bottom Right
+  DWORD	ChildNode;  //Bottom Left
+};
+</code>
+==Navigation Nodes==
+**//00 00 00 01//** \\
+**//00 01 00 01//** \\
+<code>
+struct NAV_NODE {
+  BYTE unknown
+  BYTE ROOT
+  BYTE unknown
+  BYTE END
+  BYTE	Layer; //0-6
+  BYTE	SubSet;
+  FLOAT	X Coord;
+  FLOAT	Y Coord;
+  DWORD	NodeID;
+  DWORD	Level;                     //Represents some sort of z level attribute
+  BYTE	Unknown;                   //So far, Subset 0 = 0 or 128, SubSet 1+ = 64
+  DWORD	NumberNodes;
+  DWORD	AdjacentNode[NumberNodes]; //Adjanent navigation or exit nodes
+};
+</code>
+==Exit Node==
+**//01 00 00 01//** \\
+**//01 00 01 01//** \\
+<code>
+struct EXIT_NODE {
+  BYTE unknown
+  BYTE ROOT
+  BYTE unknown
+  BYTE END
+  BYTE	Layer; //0-6
+  BYTE	SubSet;
+  FLOAT	X Coord;
+  FLOAT	Y Coord;
+  DWORD	NodeID;
+  DWORD	Level;                     //Represents some sort of z level attribute
+  BYTE	Unknown;                   //So far, Subset 0 = 0 or 128, SubSet 1+ = 64
+  DWORD	NumberNodes;
+  DWORD	AdjacentNode[NumberNodes]; //Adjanent navigation or exit nodes
+  DWORD	NumberUIDs;
+  QWORD	TNG_UID[NumberUIDs];        // Stripped UID to create the real uid add 18446741874686296064 to this value
+};
+</code>
+==Blank Node==
+**//00 01 01//** \\
+<code>
+struct BLANK_NODE {
+  BYTE unknown;
+  BYTE ROOT;
+  BYTE unknown;
+};
+</code>

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