61 lines
1.9 KiB
Rust
61 lines
1.9 KiB
Rust
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use std::collections::HashMap;
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use wgpu::{Device, Buffer};
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use crate::render::{create_circle_vertices, create_sphere_vertices, Geometry, Shape, Vertex};
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use wgpu::util::DeviceExt;
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pub struct GeometryManager {
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pub geometries: HashMap<Shape, Geometry>,
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}
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impl GeometryManager {
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pub fn new(device: &Device) -> Self {
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let mut geometries = HashMap::new();
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// Circle
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let (circle_vertices, circle_indices) = create_circle_vertices(512, 0.5, [0.5, 0.5, 0.5]);
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geometries.insert(
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Shape::Circle,
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Self::create_geometry(device, &circle_vertices, &circle_indices),
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);
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// Sphere
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let (sphere_vertices, sphere_indices) = create_sphere_vertices(32, 32, 0.5, [0.5, 0.5, 0.5]);
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geometries.insert(
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Shape::Sphere,
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Self::create_geometry(device, &sphere_vertices, &sphere_indices),
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);
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// Füge hier beliebige weitere Shapes hinzu
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Self { geometries }
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}
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pub fn get(&self, shape: &Shape) -> Option<&Geometry> {
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self.geometries.get(shape)
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}
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pub fn shapes(&self) -> impl Iterator<Item = Shape> + '_ {
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self.geometries.keys().copied()
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}
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fn create_geometry(device: &Device, vertices: &[Vertex], indices: &[u16]) -> Geometry {
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let vertex_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
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label: Some("Vertex Buffer"),
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contents: bytemuck::cast_slice(vertices),
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usage: wgpu::BufferUsages::VERTEX,
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});
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let index_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
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label: Some("Index Buffer"),
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contents: bytemuck::cast_slice(indices),
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usage: wgpu::BufferUsages::INDEX,
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});
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Geometry {
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vertex_buffer,
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index_buffer,
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index_count: indices.len() as u32,
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}
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}
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}
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