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Used to "untie" properties used by shaders

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Signed-off-by: Vivian Meazza <vivian.meazza@lineone.net>
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Vivian Meazza 2011-12-01 22:31:26 +00:00
parent f12068fe7c
commit 022c0fe433
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Nasal/weather-utility.nas Normal file
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##########
#this utility is a workaround for the fact that a shader uses listeners which cannot
# be used with a tied property
#
#does what it says on the tin
var clamp = func(v, min, max) { v < min ? min : v > max ? max : v }
#set global variables
var Amp = 1.0;
var Angle = 35.0;
var DAngle = 20.0;
var Freq = 0.01;
var Factor = 0.0004;
var Sharp = 1.0;
#add control properies for waves
wave_amp_Node = props.globals.getNode("/environment/wave/amp" , 1);
wave_amp_Node.setDoubleValue(Amp);
wave_freq_Node = props.globals.getNode("/environment/wave/freq" , 1);
wave_freq_Node.setDoubleValue(Freq);
wave_sharp_Node = props.globals.getNode("/environment/wave/sharp" , 1);
wave_sharp_Node.setDoubleValue(Sharp);
wave_angle_Node = props.globals.getNode("/environment/wave/angle" , 1);
wave_angle_Node.setDoubleValue(Angle);
wave_factor_Node = props.globals.getNode("/environment/wave/factor" , 1);
wave_factor_Node.setDoubleValue(Factor);
wave_factor_Node = props.globals.getNode("/environment/wave/dangle" , 1);
wave_factor_Node.setDoubleValue(DAngle);
props.globals.initNode("/environment/sea/surface/wind-speed-kt", 0, "DOUBLE");
props.globals.initNode("/environment/sea/surface/wind-from-east-fps", 0, "DOUBLE");
props.globals.initNode("/environment/sea/surface/wind-from-north-fps", 0, "DOUBLE");
props.globals.initNode("/environment/sea/surface/wind-from-deg", 0, "DOUBLE");
props.globals.initNode("/environment/sea/surface/config/enabled", 0, "DOUBLE");
#object rotation values
props.globals.initNode("/orientation/model/heading-deg", 0, "DOUBLE");
props.globals.initNode("/orientation/model/pitch-deg", 0, "DOUBLE");
props.globals.initNode("/orientation/model/roll-deg", 0, "DOUBLE");
var initialize = func {
wind_from_east_Node = props.globals.getNode("/environment/config/boundary/entry[0]/wind-from-east-fps", 1);
wind_from_east_Node.setDoubleValue(0);
wind_from_north_Node = props.globals.getNode("/environment/config/boundary/entry[0]/wind-from-north-fps", 1);
wind_from_north_Node.setDoubleValue(0);
wind_from_Node = props.globals.getNode("/environment/config/boundary/entry[0]/wind-from-heading-deg", 1);
wind_from_Node.setDoubleValue(0);
wind_speed_Node = props.globals.getNode("/environment/config/boundary/entry[0]/wind-speed-kt", 1);
wind_speed_Node.setDoubleValue(0);
wind_status_Node = props.globals.getNode("/environment/config/enabled", 1);
wind_status_Node.setBoolValue(1);
ground_vis_Node = props.globals.getNode("/environment/ground-visibility-m", 1);
ground_vis_Node.setDoubleValue(500);
ground_thick_Node = props.globals.getNode("/environment/ground-haze-thickness-m" , 1);
ground_thick_Node.setDoubleValue(300);
ground_term_Node = props.globals.getNode("/environment/terminator-relative-position-m" , 1);
ground_term_Node.setDoubleValue(60000);
# ################## listeners ####################
#
setlistener("/environment/sea/surface/wind-speed-kt", func (n) {
var wind = 0;
var amp = 0;
var angle = 0;
var dangle = 0;
var freq = 0;
var factor = 0;
var sharp = 0;
wind = n.getValue();
amp = Amp + 0.02 * wind;
amp = clamp(amp, 1.0, 2.0);
setprop("/environment/wave/amp", amp);
angle = Angle + 0.2 * wind;
setprop("/environment/wave/angle", angle);
dangle = DAngle - 0.4 * wind;
setprop("/environment/wave/dangle", dangle);
freq = Freq + 0.0008 * wind;
freq = clamp(freq, 0.01, 0.015);
setprop("/environment/wave/freq", freq);
factor = Factor - 0.00001 * wind;
factor = clamp(factor, 0.0001, 0.0004);
setprop("/environment/wave/factor", factor);
sharp = Sharp + 0.02 * wind;
sharp = clamp(sharp, 1.0, 2.0);
setprop("/environment/wave/sharp", sharp);
},
1,
0);# end listener
print("weather util initialized ...");
loop();
}# end init
var loop = func {
var value = getprop("/environment/config/boundary/entry[0]/wind-from-east-fps");
setprop("/environment/sea/surface/wind-from-east-fps", value);
# print("wind-from-east-fps ", getprop("/environment/sea/surface/wind-from-east-fps"));
value = getprop("/environment/config/boundary/entry[0]/wind-from-north-fps");
setprop("/environment/sea/surface/wind-from-north-fps", value);
# print("wind-from-north-fps ", getprop("/environment/sea/surface/wind-from-north-fps"));
value = getprop("/environment/config/boundary/entry[0]/wind-from-heading-deg");
setprop("/environment/sea/surface/wind-from-deg", value);
# print("wind-from-deg ", getprop("/environment/sea/surface/wind-from-deg"));
value = getprop("/environment/config/boundary/entry[0]/wind-speed-kt");
setprop("/environment/sea/surface/wind-speed-kt", value);
# print("wind-speed-kt ", getprop("/environment/sea/surface/wind-speed-kt"));
value = getprop("/environment/config/enabled");
setprop("/environment/sea/config/enabled", value);
# print("wind-speed-kt ", getprop("/environment/config/enabled"));
# orientation fix
#orientation
value = getprop("/orientation/heading-deg") or 0.0;
setprop("/orientation/model/heading-deg", value);
value = getprop("/orientation/pitch-deg") or 0.0;
setprop("/orientation/model/pitch-deg", value);
value = getprop("/orientation/roll-deg") or 0.0;
setprop("/orientation/model/roll-deg", value);
settimer(loop,0);
}
# Fire it up
setlistener("sim/signals/fdm-initialized", initialize);
# end