61 lines
1.3 KiB
Rust
61 lines
1.3 KiB
Rust
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use galactica_content::SpriteHandle;
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use galactica_util::to_radians;
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use nalgebra::{Point2, Vector2};
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use super::SpriteRect;
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use crate::{vertexbuffer::types::UiInstance, PositionAnchor, RenderState};
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pub struct SpriteImage {
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parent: SpriteHandle,
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parent_position: Point2<f32>,
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parent_size: f32,
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inner: SpriteHandle,
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mask: SpriteHandle,
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rect: SpriteRect,
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}
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impl SpriteImage {
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pub fn new(
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parent: SpriteHandle,
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parent_position: Point2<f32>,
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parent_size: f32,
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inner: SpriteHandle,
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mask: SpriteHandle,
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rect: SpriteRect,
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) -> Self {
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return Self {
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parent,
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parent_position,
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parent_size,
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inner,
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mask,
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rect,
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};
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}
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/// Add this image to the gpu sprite buffer
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pub fn push_to_buffer(&self, state: &mut RenderState) {
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let h = self.parent_size;
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let w = self.parent.aspect * h;
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let zero = Point2::new(
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self.parent_position.x - (w / 2.0),
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self.parent_position.y + (h / 2.0),
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);
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let pos = zero + Vector2::new(self.rect.pos.x * w, -self.rect.pos.y * h);
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let dim = Vector2::new(self.rect.dim.x * w, self.rect.dim.y * h);
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state.push_ui_buffer(UiInstance {
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anchor: PositionAnchor::CNw.to_int(),
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position: pos.into(),
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angle: to_radians(90.0),
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size: dim.y,
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color: [1.0, 1.0, 1.0, 1.0],
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sprite_index: self.inner.get_index(),
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mask_index: [1, self.mask.get_index()],
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});
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}
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}
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