79 lines
No EOL
3.4 KiB
Rust
79 lines
No EOL
3.4 KiB
Rust
use vulkanalia::prelude::v1_0::*;
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use cgmath::{vec3, ElementWise};
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use crate::vertex::{self, Facing};
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use crate::scene::Scene;
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use crate::primitives::drawable::Drawable;
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#[derive(Clone, Debug, PartialEq)]
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pub struct Quad{
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pub pos1: vertex::Vec3,
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pub pos2: vertex::Vec3,
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pub pos3: vertex::Vec3,
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pub pos4: vertex::Vec3,
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pub raster_pos: cgmath::Vector2<u32>,
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pub size: cgmath::Vector2<u32>,
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pub volume_index: u32,
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pub facing: Facing,
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}
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impl Drawable for Quad {
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fn draw(& self, topology: &vk::PrimitiveTopology, start_index: usize, scene: &mut Scene) {
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if *topology == vk::PrimitiveTopology::TRIANGLE_LIST {
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// 0 top left far
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scene.rt_vertices.push(vertex::RTVertex::new(
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vec3(self.pos1.x as f32, self.pos1.y as f32, self.pos1.z as f32),
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 0, y: 0}),
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self.volume_index,
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self.facing,
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self.raster_pos,
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 1, y: 1}),
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));
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// 1 top right far
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scene.rt_vertices.push(vertex::RTVertex::new(
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vec3(self.pos2.x as f32, self.pos2.y as f32, self.pos2.z as f32),
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 0, y: 1}),
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self.volume_index,
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self.facing,
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self.raster_pos,
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 1, y: 1}),
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));
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// 2 top left near
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scene.rt_vertices.push(vertex::RTVertex::new(
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vec3(self.pos3.x as f32, self.pos3.y as f32, self.pos3.z as f32),
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 1, y: 1}),
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self.volume_index,
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self.facing,
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self.raster_pos,
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 1, y: 1}),
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));
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// 3 top right near
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scene.rt_vertices.push(vertex::RTVertex::new(
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vec3(self.pos4.x as f32, self.pos4.y as f32, self.pos4.z as f32),
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 1, y: 0}),
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self.volume_index,
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self.facing,
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self.raster_pos,
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 1, y: 1}),
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));
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// change node order while preserving texture coordinates
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if [Facing::Top].contains(&self.facing) {
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scene.indices_rt.push(start_index as u32 + 0);
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scene.indices_rt.push(start_index as u32 + 1);
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scene.indices_rt.push(start_index as u32 + 2);
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scene.indices_rt.push(start_index as u32 + 2);
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scene.indices_rt.push(start_index as u32 + 3);
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scene.indices_rt.push(start_index as u32 + 0);
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} else {
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scene.indices_rt.push(start_index as u32 + 2);
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scene.indices_rt.push(start_index as u32 + 1);
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scene.indices_rt.push(start_index as u32 + 0);
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scene.indices_rt.push(start_index as u32 + 0);
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scene.indices_rt.push(start_index as u32 + 3);
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scene.indices_rt.push(start_index as u32 + 2);
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}
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}
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}
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} |