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- add some documentation

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- reset values
This commit is contained in:
mfranz 2007-02-10 23:47:02 +00:00
parent 3831675000
commit 7763462f24
1 changed files with 39 additions and 9 deletions
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48
Nasal/dynamic_view.nas
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@ -1,6 +1,37 @@
# Dynamic Cockpit View manager. Tries to simulate the pilot's most likely
# deliberate view direction. Doesn't consider forced view changes due to
# acceleration.
#
# To override the default recipes, put something like this into one of
# your aircraft's Nasal files:
#
# dynamic_view.register(func {
# # me.default_plane(); # uncomment one of these if you want
# # me.default_helicopter(); # to base your code on the defaults
#
# # positive values rotate (deg) or move (m)
# me.heading_offset = ... # left
# me.pitch_offset = ... # up
# me.roll_offset = ... # right
# me.x_offset = ... # right (transversal axis)
# me.y_offset = ... # up (vertical axis)
# me.z_offset = ... # back/aft (longitudinal axis)
# me.fov_offset = ... # zoom out (field of view)
# });
#
# All offsets are by default 0, and you only need to set them if they should
# be non-zero. The registered function is called for each frame and the respective
# view parameters are set accordingly. The function can access all internal
# variables of the ViewManager class, such as me.roll, me.pitch, etc., and it
# can, of course, also use module variables from the file where it's defined.
#
# The following commands move smoothly to a fixed view position and back.
# All values are relative to aircraft origin (absolute), not relative to
# the default cockpit view position. The field-of-view argument is optional.
#
# dynamic_view.lookat(hdg, pitch, roll, x, y, z [, fov=55]);
# dynamic_view.resume();
var sin = func(a) { math.sin(a * math.pi / 180.0) }
@ -136,15 +167,6 @@ var ViewManager = {
m.last_heading = m.headingN.getValue();
m.size_factor = getprop("/sim/chase-distance-m") / -25;
m.heading = m.target_heading = 0;
m.pitch = m.target_pitch = 0;
m.roll = m.target_roll = 0;
m.x_offset = m.x = m.target_x = 0;
m.y_offset = m.y = m.target_y = 0;
m.z_offset = m.z = m.target_z = 0;
m.fov = m.target_fov = 0;
m.fov_offset = 0;
# "lookat" blending
m.blendN = props.globals.getNode("/sim/view/dynamic/blend", 1);
m.blendN.setDoubleValue(0);
@ -159,6 +181,14 @@ var ViewManager = {
return m;
},
reset : func {
me.heading_offset = me.heading = me.target_heading = 0;
me.pitch_offset = me.pitch = me.target_pitch = 0;
me.roll_offset = me.roll = me.target_roll = 0;
me.x_offset = me.x = me.target_x = 0;
me.y_offset = me.y = me.target_y = 0;
me.z_offset = me.z = me.target_z = 0;
me.fov_offset = me.fov = me.target_fov = 0;
interpolate(me.blendN);
me.blendN.setDoubleValue(0);
foreach (var a; me.axes) {