turtlegame/src/ui.rs

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Rust
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use crate::State;
use comfy::{
draw_rect, draw_rect_outline, screen_height, screen_to_world, screen_width,
EngineContext, Vec2, BLUE, RED
};
pub fn draw(state: &State, _engine: &EngineContext<'_>) {
// seperate fill state into smaller section for better readability
let section_count = 5;
let mut start_positon = screen_to_world(Vec2::new(screen_width(), screen_height()));
// section size in world codinates
let section_size = Vec2::new(0.5, 0.25);
start_positon.x -= 0.5 * section_size.x + 0.5 * section_size.y;
start_positon.y += 0.5 * section_size.y + 0.5 * section_size.y;
// draw fill level
{
let ghost = &state.ghost;
let percent = ghost.charge / ghost.max_charge;
let mut size = section_size;
size.y = section_size.y * section_count as f32 * percent;
let mut position = start_positon;
position.y += 0.5 * -section_size.y + 0.5 * size.y;
draw_rect(position, size, BLUE, 100);
}
// draw sections
for i in 0 .. section_count {
let mut position = start_positon;
position.y += i as f32 * section_size.y;
draw_rect_outline(position, section_size, 0.1, RED, 100);
}
}