reset-2d.py

TWO2_SHADER_STARTER = """/// ***************************** ///
/// THIS IS THE DEFAULT 2D SHADER ///
/// You can always get back to this with `python3 scripts/reset-2d.py` ///
/// ***************************** ///

#import bevy_sprite::mesh2d_view_bindings::globals 
#import shadplay::shader_utils::common::{NEG_HALF_PI, shader_toy_default, rotate2D, TWO_PI}
#import bevy_render::view::View
#import bevy_sprite::mesh2d_vertex_output::VertexOutput

@group(0) @binding(0) var<uniform> view: View;

const SPEED:f32 = 1.0;

@fragment
fn fragment(in: VertexOutput) -> @location(0) vec4<f32> {
    // ensure our uv coords match shadertoy/the-lil-book-of-shaders
    var uv = in.uv;
    uv = (uv * 2.0) - 1.0;
    let resolution = view.viewport.zw;
    let t = globals.time * SPEED;
    uv.x *= resolution.x / resolution.y;
    uv *= rotate2D(NEG_HALF_PI);

    return vec4f(shader_toy_default(t, uv), 0.3);
}    
    
"""

# Define the file path
file_path = "./assets/shaders/myshader_2d.wgsl"

# Open the file in write mode and replace its contents
with open(file_path, "w") as file:
    file.write(TWO2_SHADER_STARTER)

print(f"Content in {file_path} has been replaced with the provided shader code.")