Mapping/map file file format
Structure
A .map file is composed of a number of entities which contain brushes (defining geometry) and attributes (key-value pairs). Most brushes are usually found in the first "worldspawn" entity and "func_group" entities. Common brushless entities include models, lights, actor spawns and particles. Map files created using UFORadiant 1.5 have no indentation.
// entity 0
{
"classname" "worldspawn"
// brush 0
{
face_0
...
}
// brush 1
{
}
}
// entity 1
{
"classname" "some_other_entity"
"another_key" "another_value"
}
Brushes
Each brush consists of a number of faces, and a face is a "directed" plane (half-space) and texturing info. Plane is given by listing its 3 points, if these appear clockwise when viewed from a point in space, then the point is outside of the face. The polyhedron defined by a brush is an intersection of its half-spaces or you may say that a point is inside the brush if it's inside all its faces.
( x0 y0 z0 ) ( x1 y1 z1 ) ( x2 y2 z2 ) tex x_off y_off angle x_scale y_scale cont_flags surf_flags surf_value
- (x0, y0, z0) ... Points coordinates are usually integers, but can sometimes be real.
- tex is the path to the image file for the texture
- x_off y_off are coordinates for the texture on the face
- angle the angle of the texture
- x_scale y_scale the scale of the texture
- cont_flags Content flags
- surf_flags Surface flags
- surf_value E.g. the light value for surface lights
Flags are optional, if they are missing one should assume they are zero.
Attributes
One attribute is obligatory, namely "classname" that defines what an entity represents. Each class has a different set of meaningful other attributes. See the entities article for a full list.
- worldspawn
- The first entity defining world geometry and some globals.
- maxlevel
- maxteams
- func_group
- Some additional geometry.
- misc_model
- External model to be placed on map.
- model (path to a model file)
- origin
- angles
- light
- A point lamp.
- origin
- _color (note the underline)
- light
- info_human_start, info_civilian_start, info_alien_start, info_player_start
- Phalanx, civilian, alien or multiplayer spawn.
- origin
- angle
- team (only with info_player_start)
- misc_particle
- Particle generator.
- origin
- particle
Levelflags
LEVEL1 0x0100 LEVEL2 0x0200 LEVEL3 0x0400 LEVEL4 0x0800 LEVEL5 0x1000 LEVEL6 0x2000 LEVEL7 0x4000 LEVEL8 0x8000