Struct Buttons

Source

pub struct Buttons { /* private fields */ }

Implementations§

Source §

pub const fn bits(&self) -> u8

Returns the underlying bits of the bitmask.

Source

pub const fn all_bits() -> Self

Returns a bitmask that contains all values.

This will include bits that do not have any flags. Use ::all_flags() if you only want to use flags.

Source

pub const fn all_flags() -> Self

Returns a bitmask that contains all flags.

Source

pub const fn is_all_bits(&self) -> bool

Returns true if the bitmask contains all values.

This will check for bits == !0, use .is_all_flags() if you only want to check for all flags

Source

pub const fn is_all_flags(&self) -> bool

Returns true if the bitmask contains all flags.

This will fail if any unused bit is set, consider using .truncate() first.

Source

pub const fn all() -> Self

👎Deprecated: Please use the ::all_bits() constructor

Returns a bitmask that contains all values.

This will include bits that do not have any flags. Use ::all_flags() if you only want to use flags.

Source

pub const fn is_all(&self) -> bool

👎Deprecated: Please use the .is_all_bits() method

Returns true if the bitmask contains all values.

This will check for bits == !0, use .is_all_flags() if you only want to check for all flags

Source

pub const fn full() -> Self

👎Deprecated: Please use the ::all_flags() constructor

Returns a bitmask that contains all flags.

Source

pub const fn is_full(&self) -> bool

👎Deprecated: Please use the .is_all_flags() method

Returns true if the bitmask contains all flags.

This will fail if any unused bit is set, consider using .truncate() first.

Source

pub const fn none() -> Self

Returns a bitmask that does not contain any values.

Source

pub const fn is_none(&self) -> bool

Returns true if the bitmask does not contain any values.

Source

pub const fn truncate(&self) -> Self

Returns a bitmask that only has bits corresponding to flags

Source

pub const fn intersects(&self, other: Self) -> bool

Returns true if self intersects with any value in other, or if other does not contain any values.

This is equivalent to (self & other) != 0 || other == 0.

Source

pub const fn contains(&self, other: Self) -> bool

Returns true if self contains all values of other.

This is equivalent to (self & other) == other.

Examples found in repository ?

examples/mandelbrot.rs (line 179)

174    fn update(&mut self, _delta: f32) {
175        let button_state = PLAYDATE.system.get_button_state();
176        let prev_scale = self.scale;
177        let prev_center = self.center;
178        // Scale
179        if button_state.current.contains(Buttons::A) {
180            self.scale /= 1.1;
181        } else if button_state.current.contains(Buttons::B) {
182            self.scale *= 1.1
183        }
184        if !PLAYDATE.system.is_crank_docked() {
185            let crank = PLAYDATE.system.get_crank_change();
186            if crank > 0.0 {
187                self.scale /= 1.05;
188            } else if crank < 0.0 {
189                self.scale *= 1.05;
190            }
191        }
192        // Move
193        if button_state.current.contains(Buttons::Up) {
194            self.center.im += 10.0 * self.scale
195        } else if button_state.current.contains(Buttons::Down) {
196            self.center.im -= 10.0 * self.scale
197        }
198        if button_state.current.contains(Buttons::Left) {
199            self.center.re -= 10.0 * self.scale
200        } else if button_state.current.contains(Buttons::Right) {
201            self.center.re += 10.0 * self.scale
202        }
203        if prev_center != self.center || prev_scale != self.scale {
204            self.draw_frame();
205        }
206        // Draw metadata
207        self.draw_meta();
208        // Draw FPS
209        PLAYDATE.system.draw_fps(vec2![0, 0]);
210    }