62 lines
1.8 KiB
Text
62 lines
1.8 KiB
Text
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# door: class for objects moving at constant speed, with the ability to
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# reverse moving direction at any point. Appropriate for doors, canopies, etc.
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#
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# SYNOPSIS:
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# door.new(<property>, <swingtime> [, <startpos>]);
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#
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# property ... parent property (available as door.base)
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# swingtime ... time in seconds for full movement (0 -> 1)
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# startpos ... initial position (default: 0)
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#
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# PROPERTIES:
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# <property>/position-norm (type="double")
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# <property>/enabled (type="bool")
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#
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# EXAMPLE:
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# canopy = aircraft.door.new("sim/model/foo/canopy", 5);
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# canopy.open();
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#
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door = {
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new : func {
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d = { parents: [door] };
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d.base = props.globals.getNode(arg[0], 1);
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d.pos = d.base.getNode("position-norm", 1);
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d.enabled = d.base.getNode("enabled", 1);
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d.enabled.setBoolValue(1);
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d.swingtime = arg[1];
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pos = if (size(arg) > 2 and arg[2] != nil) { arg[2] } else { 0 };
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d.pos.setDoubleValue(pos);
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d.target = pos < 0.5;
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return d;
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},
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# door.enable(bool) -> set <property>/enabled
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enable : func { me.enabled.setBoolValue(arg[0]) },
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# door.setpos(double) -> set <property>/position-norm without movement
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setpos : func { me.pos.setValue(arg[0]); me.target = arg[0] < 0.5 },
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# double door.getpos() -> return current position as double
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getpos : func { me.pos.getValue() },
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# door.close() -> move to closed state
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close : func { me.move(0) },
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# door.open() -> move to open state
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open : func { me.move(1) },
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# door.toggle() -> move to farther away end position
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# (0 -> 1, 1 -> 0, 0.3 -> 1, 0.6 -> 0)
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toggle : func { me.move(me.target) },
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# door.move(double) -> move to arbitrary position
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move : func {
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time = abs(me.getpos() - arg[0]) * me.swingtime;
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interpolate(me.pos, arg[0], time);
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me.target = !me.target;
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},
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};
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