These functions check whether a key has been pressed alone.

[rustbasic]

These functions check whether a key has been pressed alone.

Add Functions :

modifiers_not_pressed()
key_pressed_only()
key_down_only()
key_down_exclusive()

For Test Code :

            if ui.input(|i| i.modifiers_not_pressed()) {
                ui.label("i.modifiers_not_pressed() : true");
            } else {
                ui.label("i.modifiers_not_pressed() : false");
            }

            if ui.input(|i| i.key_pressed(Key::A)) {
                ui.label("i.key_pressed(Key::A) : true");
            } else {
                ui.label("i.key_pressed(Key::A) : false");
            }

            if ui.input(|i| i.key_pressed_only(Key::A)) {
                ui.label("i.key_pressed_only(Key::A) : true");
            } else {
                ui.label("i.key_pressed_only(Key::A) : false");
            }

            if ui.input(|i| i.key_down(Key::A)) {
                ui.label("i.key_down(Key::A) : true");
            } else {
                ui.label("i.key_down(Key::A) : false");
            }

            if ui.input(|i| i.key_down_only(Key::A)) {
                ui.label("i.key_down_only(Key::A) : true");
            } else {
                ui.label("i.key_down_only(Key::A) : false");
            }

            if ui.input(|i| i.key_down_exclusive(Key::A)) {
                ui.label("i.key_down_exclusive(Key::A) : true");
            } else {
                ui.label("i.key_down_exclusive(Key::A) : false");
            }

[bircni]

if one day key_pressed might be modified -we could easily forget this - fix this using the function here, too

pub fn key_pressed_only(&self, desired_key: Key) -> bool {
        key_pressed(desired_key) && self.modifiers_not_pressed()
}

[bircni]

Same as above:

pub fn key_down_exclusive(&self, desired_key: Key) -> bool {
       key_down(desired_key) && self.keys_down.len() == 1
}

[bircni]

As mentioned above:

pub fn key_down_only(&self, desired_key: Key) -> bool {
    key_down(desired_key) && self.modifiers_not_pressed()
    }