Struct agb::display::object::Tag

pub struct Tag { /* private fields */ }

A sequence of sprites from aseprite.

Implementations

impl Tag

pub fn sprites(&self) -> &'static [Sprite]

The individual sprites that make up the animation themselves.

pub const fn sprite(&self, idx: usize) -> &'static Sprite

A single sprite referred to by index in the animation sequence.

Examples found in repository

examples/sprites.rs (line 85)

fn all_tags(gfx: &OamManaged) {
    let mut input = agb::input::ButtonController::new();
    let mut objs = Vec::new();

    for (i, v) in TAG_MAP.values().enumerate() {
        let x = (i % 7) as i32;
        let y = (i / 7) as i32;
        let sprite = v.sprite(0);
        let (size_x, size_y) = sprite.size().to_width_height();
        let (size_x, size_y) = (size_x as i32, size_y as i32);
        let mut obj = gfx.object_sprite(sprite);
        obj.show();
        obj.set_position((x * 32 + 16 - size_x / 2, y * 32 + 16 - size_y / 2).into());
        objs.push((obj, v));
    }

    let mut count = 0;
    let mut image = 0;

    let vblank = agb::interrupt::VBlank::get();

    loop {
        vblank.wait_for_vblank();

        input.update();

        if input.is_just_pressed(agb::input::Button::A) {
            break;
        }

        count += 1;

        if count % 5 == 0 {
            image += 1;
            for (obj, tag) in objs.iter_mut() {
                obj.set_sprite(gfx.sprite(tag.animation_sprite(image)));
            }
            gfx.commit();
        }
    }
}

pub fn animation_sprite(&self, idx: usize) -> &'static Sprite

A sprite that follows the animation sequence. For instance, in aseprite tags can be specified to animate:

• Forward
• Backward
• Ping pong

This takes the animation type in account and returns the correct sprite following these requirements.

Examples found in repository

examples/sprites.rs (line 113)

fn all_tags(gfx: &OamManaged) {
    let mut input = agb::input::ButtonController::new();
    let mut objs = Vec::new();

    for (i, v) in TAG_MAP.values().enumerate() {
        let x = (i % 7) as i32;
        let y = (i / 7) as i32;
        let sprite = v.sprite(0);
        let (size_x, size_y) = sprite.size().to_width_height();
        let (size_x, size_y) = (size_x as i32, size_y as i32);
        let mut obj = gfx.object_sprite(sprite);
        obj.show();
        obj.set_position((x * 32 + 16 - size_x / 2, y * 32 + 16 - size_y / 2).into());
        objs.push((obj, v));
    }

    let mut count = 0;
    let mut image = 0;

    let vblank = agb::interrupt::VBlank::get();

    loop {
        vblank.wait_for_vblank();

        input.update();

        if input.is_just_pressed(agb::input::Button::A) {
            break;
        }

        count += 1;

        if count % 5 == 0 {
            image += 1;
            for (obj, tag) in objs.iter_mut() {
                obj.set_sprite(gfx.sprite(tag.animation_sprite(image)));
            }
            gfx.commit();
        }
    }
}