Skip to main content

lerp_u8

faststep

Function lerp_u8 

Source 
pub fn lerp_u8(from: u8, to: u8, progress_permille: u16) -> u8
Expand description

Linearly interpolates between two u8 values using permille progress.

Examples found in repository?
src/modal.rs (line 112)
100    pub fn current_with_panel(&self, bounds: Rectangle, panel: Rectangle) -> Option<ModalLayer<M>> {
101        let offscreen = offscreen_offset(bounds, panel);
102
103        match self.state {
104            ModalState::Hidden => None,
105            ModalState::Visible { modal } => Some(ModalLayer::new(modal, panel, 0, DIM_ALPHA_MAX)),
106            ModalState::Showing { modal, animation } => {
107                let progress = animation.progress_permille();
108                Some(ModalLayer::new(
109                    modal,
110                    panel,
111                    lerp_i32(offscreen, 0, progress),
112                    lerp_u8(0, DIM_ALPHA_MAX, progress),
113                ))
114            }
115            ModalState::Hiding { modal, animation } => {
116                let progress = animation.progress_permille();
117                Some(ModalLayer::new(
118                    modal,
119                    panel,
120                    lerp_i32(0, offscreen, progress),
121                    lerp_u8(DIM_ALPHA_MAX, 0, progress),
122                ))
123            }
124        }
125    }