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use stdweb::web::CanvasRenderingContext2d;
use crate::{Level, Tile};
use crate::Direction;
const SCALE_X: f64 = 8.0;
const SCALE_Y: f64 = 4.0;
pub fn render_level(canvas: &mut CanvasRenderingContext2d, level: &Level) {
let region = &level.region;
let x_offset = 20.0;
let y_offset = 20.0;
for y in 0..region.height() {
for x in 0..region.width() {
let old_width = canvas.get_line_width();
canvas.set_line_width(2.0);
canvas.set_fill_style_color("lightgrey");
let x_f = x as f64;
let y_f = y as f64;
let x_l = x_offset + (x_f * SCALE_X);
let x_r = x_offset + (x_f + 1.0) * SCALE_X;
let y_t = y_offset + (y_f * SCALE_Y);
let y_b = y_offset + (y_f + 1.0) * SCALE_Y;
let tile = region.get(x, y).unwrap();
if let Some(tile) = tile {
canvas.fill_rect(x_l, y_t, x_r - x_l, y_b - y_t);
if tile.connections & Direction::UP == 0 {
canvas.begin_path();
canvas.move_to(x_l, y_t);
canvas.line_to(x_r, y_t);
canvas.stroke();
}
if tile.connections & Direction::RIGHT == 0 {
canvas.begin_path();
canvas.move_to(x_r, y_t);
canvas.line_to(x_r, y_b);
canvas.stroke();
}
if tile.connections & Direction::DOWN == 0 {
canvas.begin_path();
canvas.move_to(x_l, y_b);
canvas.line_to(x_r, y_b);
canvas.stroke();
}
if tile.connections & Direction::LEFT == 0 {
canvas.begin_path();
canvas.move_to(x_l, y_t);
canvas.line_to(x_l, y_b);
canvas.stroke();
}
}
}
}
}
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