//Original written by; https://github.com/XansiVA

animations {
    workspace-switch {
        spring damping-ratio=0.80 stiffness=523 epsilon=0.0001
    }
window-open {
    duration-ms 700
    curve "ease-out-expo"
    custom-shader r"
    vec4 line_expand(vec3 coords_geo, vec3 size_geo) {
        float progress = niri_clamped_progress;
        
        // Add extra easing on top of the curve
        float eased_progress = progress * progress * (3.0 - 2.0 * progress); // smoothstep
        
        // Calculate the center of the window
        float window_center_y = size_geo.y * 0.5;
        
        // Current pixel's Y position
        float pixel_y = coords_geo.y * size_geo.y;
        
        // Distance from center
        float dist_from_center = abs(pixel_y - window_center_y);
        
        // How much of the window should be visible
        float visible_radius = (size_geo.y * 0.5) * eased_progress;
        
        // If outside visible area, hide it
        if (dist_from_center > visible_radius) {
            return vec4(0.0);
        }
        
        // Draw a bright line at the expanding edges (top and bottom)
        float edge_thickness = 3.0;
        bool at_edge = abs(dist_from_center - visible_radius) < edge_thickness;
        
        // Show the pixel
        vec3 coords_tex = niri_geo_to_tex * coords_geo;
        vec4 color = texture2D(niri_tex, coords_tex.st);
        
        // Make the edge line bright white
        if (at_edge && eased_progress < 0.99) {
            color.rgb = mix(color.rgb, vec3(1.0, 1.0, 1.0), 0.8);
        }
        
        return color;
    }
    vec4 open_color(vec3 coords_geo, vec3 size_geo) {
        return line_expand(coords_geo, size_geo);
    }"
}

    
   window-close {
    duration-ms 500
    curve "ease-out-expo"
    custom-shader r"
    vec4 line_collapse(vec3 coords_geo, vec3 size_geo) {
        float progress = niri_clamped_progress;
        
        // Add extra easing on top of the curve
        float eased_progress = progress * progress * (3.0 - 2.0 * progress); // smoothstep
        
        // Reverse the progress so it goes from full to line
        float reversed_progress = 1.0 - eased_progress;
        
        // Calculate the center of the window
        float window_center_y = size_geo.y * 0.5;
        
        // Current pixel's Y position
        float pixel_y = coords_geo.y * size_geo.y;
        
        // Distance from center
        float dist_from_center = abs(pixel_y - window_center_y);
        
        // How much of the window should be visible (shrinking)
        float visible_radius = (size_geo.y * 0.5) * reversed_progress;
        
        // If outside visible area, hide it
        if (dist_from_center > visible_radius) {
            return vec4(0.0);
        }
        
        // Draw a bright line at the collapsing edges
        float edge_thickness = 2.0;
        bool at_edge = abs(dist_from_center - visible_radius) < edge_thickness;
        
        // Show the pixel
        vec3 coords_tex = niri_geo_to_tex * coords_geo;
        vec4 color = texture2D(niri_tex, coords_tex.st);
        
        // Make the edge line bright white
        if (at_edge && reversed_progress > 0.01) {
            color.rgb = mix(color.rgb, vec3(1.0, 1.0, 1.0), 0.8);
        }
        
        return color;
    }
    vec4 close_color(vec3 coords_geo, vec3 size_geo) {
        return line_collapse(coords_geo, size_geo);
    }"
}

    
    horizontal-view-movement {
        spring damping-ratio=0.85 stiffness=423 epsilon=0.0001
    }
    window-movement {
        spring damping-ratio=0.75 stiffness=323 epsilon=0.0001
    }
    window-resize {
        custom-shader r"
            vec4 resize_color(vec3 coords_curr_geo, vec3 size_curr_geo) {
                vec3 coords_tex_next = niri_geo_to_tex_next * coords_curr_geo;
                vec4 color = texture2D(niri_tex_next, coords_tex_next.st);
                return color;
            }
        "
    }
    config-notification-open-close {
        spring damping-ratio=0.95 stiffness=923 epsilon=0.02
    }
    screenshot-ui-open {
        duration-ms 300
        curve "ease-out-quad"
    }
    overview-open-close {
        spring damping-ratio=0.85 stiffness=800 epsilon=0.0001
    }
}