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pub use self::memory_rgba8_texture::MemoryRGBA8Texture;
pub use self::sub_texture::SubTexture;
use std::ops::{Deref, DerefMut};
pub mod sub_texture;
pub mod memory_rgba8_texture;
pub mod image_texture;
pub trait Texture {
type Pixel: Pixel;
fn width(&self) -> u32;
fn height(&self) -> u32;
fn get(&self, x: u32, y: u32) -> Option<Self::Pixel>;
fn set(&mut self, x: u32, y: u32, val: Self::Pixel);
fn get_rotated(&self, x: u32, y: u32) -> Option<Self::Pixel> {
let w = self.height();
self.get(y, w - x - 1)
}
fn is_column_transparent(&self, col: u32) -> bool {
for y in 0..self.height() {
if let Some(p) = self.get(col, y) {
if !p.is_transparent() {
return false;
}
}
}
true
}
fn is_row_transparent(&self, row: u32) -> bool {
for x in 0..self.width() {
if let Some(p) = self.get(x, row) {
if !p.is_transparent() {
return false;
}
}
}
true
}
}
pub trait Pixel: Sized {
fn is_transparent(&self) -> bool;
fn transparency() -> Option<Self>;
fn outline() -> Self;
}
impl <P: Pixel> Texture for Box<Texture<Pixel=P> + 'static> {
type Pixel = P;
fn width(&self) -> u32 {
self.deref().width()
}
fn height(&self) -> u32 {
self.deref().height()
}
fn get(&self, x: u32, y: u32) -> Option<P> {
self.deref().get(x, y)
}
fn set(&mut self, x: u32, y :u32, val: P) {
self.deref_mut().set(x, y, val);
}
}