Zh/Nav Mesh/Console commands

指令

为了加快您的工作效率，您可以将这些指令绑定至CFG脚本内。例如, Left 4 Dead (L4D)的nav_mode.cfg。 注意：区域可以等于导航网络。

导航网络（网格）生成

nav_mark_walkable

标记一个位置，以这个以这个位置进行生成导航网络（这个仅标记，需要配合nav_generate或nav_generate_incremental生成，一般用后者）。

nav_clear_walkable_marks

消除地图内所有标记点。

nav_generate

为当前地图生成导航网络并保存至磁盘。

nav_generate_incremental

在不改变现有存在nav的情况之下，增加新的导航网络。比如生成的导航网络有些地方没有被覆盖，可以利用这个填充那个部分并且不会修改原有已生成的导航网络。

Note that these new areas will have to be manually connected to the existing mesh.

nav_generate_incremental_range <integer>

设置导航网络一次生成的距离（单位？），以标记点位中心。

nav_auto_build_area

Build out high-precision areas around the edit cursor and create them.

nav_save

保存当前地图的导航网络至磁盘。

nav_analyze

分析当前已生成的导航网络并将其保存至磁盘。分析会更加精确地定义BOT（求生之路则是电脑玩家和感染者）的二阶数据，以更换规划他们的行为系统。

nav_load

为当前地图导入导航网络。

Selection commands

nav_add_to_selected_set

将当前区域添加至所选集合内，通常是光标所指位置。

nav_add_to_selected_set_by_id

将明确的导航网络ID进行选择，一般对于后期处理错误很有帮助。

nav_begin_deselecting

Start continuously removing from the selected set.

nav_end_deselecting

Stop continuously removing from the selected set.

nav_begin_selecting

选择一个批量选择开始点。

nav_end_selecting

选择一个批量选择结束点。

nav_begin_drag_deselecting

Start dragging a selection area.

nav_end_drag_deselecting

Stop dragging a selection area.

nav_begin_drag_selecting

Start dragging a selection area.

nav_end_drag_selecting

Stop dragging a selection area.

nav_toggle_in_selected_set

选择光标对准的导航网络，通常可以绑定一个按键。例如，nav_mode.cfg 在求生之路1的配置文件内，绑定按键为“z”。

nav_clear_selected_set

取消所有选择的导航网络。

nav_flood_select

Selects/highlights all nav meshes that are connected, starting with the nav mesh that the in-game gun crosshair is pointing at. This does not mean that all nav mesh areas are selected.

select_with_attribute

Selects/highlights all nav mesh areas marked with one attribute specified.

Editing commands

nav_delete

删除选择的导航网络。

nav_delete_marked

删除当前标记的区域（如果有。）

nav_split

拆分导航网络，方法是对准某个导航网络，导航网络将会出现一条线，以此条线来拆分导航网络。

nav_make_sniper_spots

Chops the marked area into disconnected sub-areas suitable for sniper spots.

nav_chop_selected

Chops all selected areas into their component 1x1 areas

nav_merge

合并导航网络，需要同高度位置且长度宽度相等。

nav_mark

标记区域或者梯子，以便后续操作。

nav_unmark

取消标记区域或者梯子。

nav_begin_area

手动创建一个导航网络的一个对角，然后以相对方向拖动鼠标以规划区域，输入“nav_end_area”完成创建。

nav_end_area

完成手动创建的导航网络。

nav_connect

连接两个导航网络。选中一个导航网络对准另一个导航网络，并输入此指令。请注意：这样做是单向连接，比如以求生之路为例，上单向连接下，则感染者可以从上下来，但是他们不会从下上去。所以如果你需要双向连接请选择两个导航网络。

nav_disconnect

取消导航网络的连接。

nav_splice

选择两个导航网络，然后输入此指令，由系统自动创建两个导航网络的空缺部分。

nav_corner_select

Select a corner of the currently marked Area. Use multiple times to access all four corners.

nav_corner_raise

升高当前选择的导航网络。

nav_corner_lower

降低当前选择的导航网络。

nav_corner_place_on_ground

将导航网络贴紧地面，通常的用于不平整的地形。

nav_begin_shift_xy

Begin shifting the Selected Set.

nav_stop_shift_xy

Finish shifting the Selected Set.

nav_simplify_selected

NAV修正命令

修改某个导航网络的属性，这样被修改的区域可以强制bot进行一些操作，比如在此区域强制下蹲，遵循某路线前进或者是禁止在此区域生成等。像是“mark CROUCH”与命令“nav_crouch”效果一致。例如，在求生之路中，有 属性列表来为求生之路的僵尸生成和电脑人控制进行应用。

mark <attribute>

标记一个区域的属性，像是CROUCH, PRECISE, NO_MOBS等。

nav_clear_attribute <attribute>

清除指定区域属性。

clear_attribute <attribute>

Clears attribute specified. If nav_clear_attribute does not work to clear an attribute specified, such as PLAYER_START, this command might work.

wipe_attributes

Clears all attributes on the selected part of the nav mesh

nav_crouch

标记此区域的BOT必须强制下蹲。

nav_fog_mark

设置选择区域雾的值。

nav_fog_pick

设置选中区域雾的值。

nav_fog_select_place

Selects all areas with the given fog place.

nav_gen_cliffs_approx

Mark cliff areas, post-processing approximation.

nav_precise

Toggles the 'don't avoid obstacles' flag used by the AI system.

nav_jump

标记此区域BOT必须跳跃。

nav_no_jump

标记此区域BOT无法跳跃。

nav_stop

标记进入此区域必须停止。

nav_walk

Toggles the 'traverse this area by walking' flag used by the AI system.

nav_run

Toggles the 'traverse this area by running' flag used by the AI system.

nav_avoid

Toggles the 'avoid this area when possible' flag used by the AI system.

nav_transient

Toggles the 'area is transient and may become blocked' flag used by the AI system.

nav_dont_hide

Toggles the 'area is not suitable for hiding spots' flag used by the AI system.

nav_stand

Toggles the 'stand while hiding' flag used by the AI system.

nav_no_hostages

Toggles the 'hostages cannot use this area' flag used by the AI system.

Place name commands

nav_use_place

If used without arguments, all available Places will be listed. If a Place argument is given, the current Place is set.

nav_place_replace

Replaces all instances of the first place with the second place.

nav_place_list

Lists all place names used in the map.

nav_toggle_place_mode

Toggle the editor into and out of Place mode. Place mode allows labelling of Area with Place names.

nav_set_place_mode

Sets the editor into or out of Place mode. Place mode allows labelling of Area with Place names.

nav_place_floodfill

Sets the Place of the Area under the cursor to the current Place, and 'flood-fills' the Place to all adjacent Areas. Flood-filling stops when it hits an Area with the same Place, or a different Place than that of the initial Area.

nav_place_pick

Sets the current Place to the Place of the Area under the cursor.

nav_toggle_place_painting

Toggles Place Painting mode. When Place Painting, pointing at an Area will 'paint' it with the current Place.

nav_mark_unnamed

Mark an Area with no Place name. Useful for finding stray areas missed when Place Painting.

其他指令

nav_check_file_consistency

Scans the maps directory and reports any missing/out-of-date navigation files.

nav_check_connectivity

Reports any areas that aren't connected to every hostage rescue zone and bomb site in the map.

nav_update_blocked

Updates the blocked/unblocked status for every nav area.

nav_check_floor

Updates the blocked/unblocked status for every nav area.

nav_check_stairs

Update the nav mesh STAIRS attribute

nav_fog_print_used

Prints out the list of fog names used in the map.

nav_fog_set

If used without arguments, all available Fog values will be listed. If a Fog argument is given, the current Fog is set.

nav_fix_playerclips

Fixup nodes marked with NAV_PLAYERCLIP.

nav_remove_unused_jump_areas

Removes jump areas with at most 1 connection to a ladder or non-jump area.

nav_strip

Strips all Hiding Spots, Approach Points, and Encounter Spots from all Areas in the mesh.

nav_warp_to_mark

Warps the player to the marked area.

nav_ladder_flip

Flips the selected ladder's direction.

nav_compress_id

Re-orders area and ladder ID's so they are continuous.

nav_show_ladder_bounds

Draws the bounding boxes of all func_ladders in the map.

nav_build_ladder

Attempts to build a nav ladder on the climbable surface under the cursor.

nav_gui

nav_trouble_report

nav_recompute_flow

nb_delete_all or nb_delete_all <group type>

Removes all NPCs in the game or, if group type is specified, removes group specified. An example group type would be Infected in L4D.

nb_move_to_cursor

Commands NPCs to move to area where the in-game gun crosshair is pointing. This command is useful in testing the movement of any infected or survivors in L4D.

Console Variables

nav_area_bgcolor R G B A

RGBA color to draw as the background color for nav areas while editing.

nav_area_max_size

Max area size created in nav generation. Default is set to 50

nav_blockers_can_affect_flow

Default is set to 1

nav_create_area_at_feet

Anchor nav_begin_area Z to editing player's feet. Default is set to 0

nav_create_place_on_ground (0 or 1)

If set to 1, nav areas will be placed flush with the ground when created by hand.

nav_coplanar_slope_limit value

Metric to determine whether adjacent walkable samples are planar and can be used to create a single planar nav area. If the dot product of two adjacent candidate's unit normals is equal to or greater than value, they are considered co-planar and can be merged. Therefore, value can range from 0 to 1.

nav_coplanar_slope_limit_displacement

Default is set to 0.7

nav_corner_adjust_adjacent

Radius used to raise/lower corners in nearby areas when raising/lowering corners. Default is set to 18

nav_debug_blocked

Default is set to 0

nav_debug_finale_area

Show extents of finale area and selected finale center. Most likely designed specifically for L4D Series. Default is set to 0

nav_displacement_test

Checks for nodes embedded in displacements (useful for in-development maps). Default is set to 10000

nav_draw_limit count

The maximum number of areas to draw in edit mode. Default is set to 500

nav_edit (0 or 1)

Set to one to interactively edit the Navigation Mesh. Set to zero to leave edit mode.

nav_generate_fixup_jump_areas

Convert obsolete jump areas into 2-way connections. Default is set to 1

nav_flood_select_tolerance

Allowable z distance of selectable areas from the start area. Default is set to 0

nav_fog_edit

Default is set to 0

nav_generate_fencetops

Autogenerate nav areas on fence and obstacle tops. Default is set to 1

nav_restart_after_analysis (0 or 1)

If set to 1, when nav nav_restart_after_analysis finishes, restart the server. Turning this off can cause crashes, but is useful for incremental generation.

nav_show_approach_points (0 or 1)

Show Approach Points in the Navigation Mesh.

nav_show_area_info duration

Duration in seconds to show nav area ID and attributes while editing

nav_show_danger (0 or 1)

Show current 'danger' levels.

nav_show_player_counts (0 or 1)

Show current player counts in each area.

nav_slope_limit Z

The ground unit normal's Z component must be greater than this for nav areas to be generated.

nav_snap_to_grid (0 or 1)

If set to 1, snap to the nav generation grid when creating new nav areas

nav_split_place_on_ground (0 or 1)

If set to 1, nav areas will be placed flush with the ground when split.

nav_quicksave (0 or 1)

Set to one to skip the time consuming phases of the analysis. Useful for data collection and testing.

See also

• Left 4 Dead 2 Level Creation
• Navigation Meshes
• Navigation Meshes (L4D)
• L4D Level Design/Nav Meshes
• L4D Level Design/Nav Flow
• L4D Level Design/Advanced Nav Editing
• nav_mode.cfg (L4D) - Essential time-saving key binds for nav mesh editing, provided by Valve