/*
    Hurry Curry! - a game about cooking
    Copyright (C) 2025 Hurry Curry! Contributors

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, version 3 of the License only.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.

*/
shader_type canvas_item;

uniform float blur_amount : hint_range(-2.0, 10.0);
uniform float mix_amount : hint_range(0.0, 1.0);
uniform float mix_amount_no_blur : hint_range(0.0, 1.0);
uniform vec4 color_over: source_color;
uniform sampler2D SCREEN_TEXTURE : hint_screen_texture, filter_linear_mipmap;
uniform bool enable_blur;

void fragment() {
	if (enable_blur) {
		vec4 blurred = textureLod(SCREEN_TEXTURE, SCREEN_UV, blur_amount);
    	COLOR = mix(blurred, color_over, mix_amount);
	} else {
		COLOR = mix(texture(SCREEN_TEXTURE, SCREEN_UV), color_over, mix_amount_no_blur);
	}
}