shader_type spatial;

render_mode unshaded, cull_disabled;

//uniform bool active = false;
//uniform vec4 flash_color: source_color = vec4(1.0, 0.2, 0.2, 1.0);
//uniform sampler2D tex: source_color;
uniform sampler2D tex : source_color, filter_nearest;

uniform vec4 blink_color : source_color = vec4(1.0, 0.2, 0.2, 1.0);
uniform float blink_intensity = 0.0;
uniform float teleport_progress = 0.0;
uniform float scanline_density = 50.0;

void fragment() {
	
	vec4 color = texture(tex, UV);

	// Apply blink effect based on alpha
	color = mix(color, blink_color, blink_intensity * color.a);
	
	// Scanline effect: horizontal lines that control alpha
	float scanline = mod(UV.y * scanline_density, 1.0);
	float cutoff = smoothstep(0.0, 1.0, UV.y - teleport_progress);
	float alpha_multiplier = step(scanline, cutoff);
	color.a *= alpha_multiplier;

	// Determine final output
	/*if (active) {
		ALBEDO = flash_color.rgb;
	} else {
		ALBEDO = color.rgb;
	}*/
	ALBEDO = color.rgb;
	ALPHA = color.a;
	/*
	if (active) {
		vec4 color = texture(tex, UV);
		ALPHA = color.a;
		ALBEDO = vec3(flash_color.r, flash_color.g, flash_color.b);
	} else {
		vec4 color = texture(tex, UV);
		ALPHA = color.a;
		ALBEDO = vec3(color.r, color.g, color.b);
	}*/
}