shader_type spatial;
render_mode vertex_lighting, specular_disabled, cull_disabled;

uniform vec3 color_bright : source_color = vec3(1.0);
uniform vec3 color_dark : source_color = vec3(0.0);
uniform float pivot = 0.0;
uniform float pivot_speed = 1.0;
uniform float waves = 4.0;
uniform float wave_speed = 1.0;
uniform float wave_scale = 0.25;

const mat3 rotation[] = {mat3(1.0)};

void vertex() {
	float body = (VERTEX.x) / 2.0;

	VERTEX.z = sin(VERTEX.x * waves + TIME * wave_speed) * wave_scale * body;

	float pivot_angle = cos(TIME * pivot_speed) * 0.1 * pivot;
	mat2 rotation_matrix = mat2(
		vec2(cos(pivot_angle), -sin(pivot_angle)),
		vec2(sin(pivot_angle), cos(pivot_angle))
	);
	VERTEX.xz = rotation_matrix * VERTEX.xz;

	float color_weight = sin(VERTEX.x * waves + TIME * wave_speed);
	COLOR = vec4(mix(color_dark, color_bright, color_weight), 1.0);
	//VERTEX.z += cos(time + body) * wave;
}

void fragment() {
	ALBEDO = COLOR.rgb;
}

//void light() {
	// Called for every pixel for every light affecting the material.
	// Uncomment to replace the default light processing function with this one.
//}