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A320-family/Nasal/Libraries/zoom-views.nas
2020-04-27 09:58:38 -04:00

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# Distance Zooming
# Copyright (c) 2020 Josh Davidson (Octal450)
# Based on PropertyRule file by onox
var distance = 0;
var min_dist = 0;
var max_dist = 0;
var canChangeZOffset = 0;
var decStep = -0.5;
var incStep = 0.5;
var viewName = "XX";
var fovZoom = func(d) {
viewName = getprop("sim/current-view/name");
canChangeZOffset = getprop("sim/current-view/type") == "lookat" and viewName != "Tower View" and viewName != "Tower View AGL" and viewName != "Fly-By View" and viewName != "Chase View" and viewName != "Chase View Without Yaw" and viewName != "Walk View" and viewName != "Walker Orbit View";
if (getprop("sim/current-view/z-offset-m") <= -20) {
decStep = -2;
} else {
decStep = -1;
}
if (getprop("sim/current-view/z-offset-m") < -20) { # Not a typo, the conditions are different
incStep = 2;
} else {
incStep = 1;
}
if (d == -1) {
if (canChangeZOffset) {
distance = getprop("sim/current-view/z-offset-m");
min_dist = getprop("sim/current-view/z-offset-min-m");
distance = math.round(std.min(-min_dist, distance + incStep) / incStep, 0.1) * incStep;
setprop("sim/current-view/z-offset-m", distance);
gui.popupTip(sprintf("%d meters", abs(distance)));
} else {
view.decrease();
}
} else if (d == 1) {
if (canChangeZOffset) {
distance = getprop("sim/current-view/z-offset-m");
max_dist = getprop("sim/current-view/z-offset-max-m");
distance = math.round(std.max(-max_dist, distance + decStep) / decStep, 0.1) * decStep;
setprop("sim/current-view/z-offset-m", distance);
gui.popupTip(sprintf("%d meters", abs(distance)));
} else {
view.increase();
}
} else if (d == 0) {
if (canChangeZOffset) {
setprop("sim/current-view/z-offset-m", getprop("sim/current-view/z-offset-default") * -1);
gui.popupTip(sprintf("%d meters", getprop("sim/current-view/z-offset-default")));
} else {
setprop("sim/current-view/field-of-view", getprop("sim/view/config/default-field-of-view-deg"));
gui.popupTip(sprintf("FOV: %.1f", getprop("sim/current-view/field-of-view")))
}
}
}