PirateTreasureHunt/scenes/Water.tscn

[gd_scene load_steps=5 format=2]

[ext_resource path="res://assets/water.png" type="Texture" id=1]
[ext_resource path="res://scenes/water.gd" type="Script" id=2]

[sub_resource type="Shader" id=1]
code = "shader_type canvas_item;

uniform vec2 tiled_factor = vec2(5.0, 5.0);
uniform float aspect_ratio = 0.5;
uniform float wave_speed = 0.4;

vec4 fragment_tiled_voronoi(vec2 uv) {
	vec2 tiled_uvs = uv * tiled_factor;
	tiled_uvs.y *= aspect_ratio;
	
	vec2 i_st = floor(tiled_uvs);
	vec2 f_st = fract(tiled_uvs);

	vec2 point = vec2 (0.2, 0.2);
	
	
	vec2 diff = point - f_st;
	float dist = length(diff);
	
	return vec4(1.0, 0., 0., 1.0);
}
/*
void fragment_old() {
	vec2 tiled_uvs = UV * tiled_factor;
	tiled_uvs.y *= aspect_ratio;
	
	vec2 uv_offset = vec2(0., 0.);
//	uv_offset.x = sin(TIME * wave_speed);
//	uv_offset.y = cos(TIME * wave_speed);
	
	tiled_uvs = tiled_uvs;
	
	vec2 uv_repeat = tiled_uvs;
	uv_repeat.x = uv_repeat.x - round(uv_repeat.x) + 0.5;
	uv_repeat.y = uv_repeat.y - round(uv_repeat.y) + 0.5;

	vec2 points[5];
	points[0] = vec2(0.83,0.75);
    points[1] = vec2(0.60,0.07);
    points[2] = vec2(0.28,0.64);
    points[3] =  vec2(0.31,0.26);

	float m_dist = 1.;
	for (int i = 0; i < 5; i++) {
		float dist = distance (uv_repeat, points[i]);
		m_dist = min(m_dist, dist);
	}

	COLOR = vec4(uv_repeat, 0., 1.);
	COLOR = vec4(m_dist, m_dist, m_dist, 1.0);
//	COLOR = texture(TEXTURE, uv_repeat);
}
*/

vec2 rand(vec2 co){
    return vec2(
		fract(sin(dot(co.xy ,vec2(12.9898,78.233))) * 43758.5453),
		fract(sin(dot(co.yx ,vec2(12.9898,78.233))) * 43758.5453));
}

void fragment() {
	vec2 tiled_uvs = UV * tiled_factor;
	tiled_uvs.y *= aspect_ratio;
	
	vec2 i_st = floor(tiled_uvs);
	vec2 f_st = fract(tiled_uvs);
	
	float m_dist = 1.;
	for (int y = -1; y <= 1; y++) {
		for (int x = -1; x <= 1; x++) {
			vec2 neighbour = vec2(float(x), float(y));
			
			vec2 point = rand (i_st + neighbour);
			point = 0.5 + 0.5 * sin(TIME * 1. + 6.2831 * point);
			
			vec2 diff = neighbour + point - f_st;
			float dist = length(diff);
			m_dist = min(m_dist, dist);
		}
	}

	vec4 blue_color = vec4(0.04, 0.33, 1.0, 1.);
	vec4 m_dist_color = vec4(m_dist, m_dist, m_dist, 1.);
	float exponent = 4.;
	vec4 color = blue_color + 0.5 * pow(m_dist_color, vec4(exponent, exponent, exponent, 1.));
//	vec4 color = 
//	color += 1.0 - m_dist;

	COLOR = vec4(color);
}"

[sub_resource type="ShaderMaterial" id=2]
shader = SubResource( 1 )
shader_param/tiled_factor = Vector2( 300, 300 )
shader_param/aspect_ratio = 0.647
shader_param/wave_speed = 0.4

[node name="Water" type="Node2D"]

[node name="water" type="Sprite" parent="."]
material = SubResource( 2 )
position = Vector2( -0.00827694, 0 )
scale = Vector2( 0.444957, 0.287887 )
texture = ExtResource( 1 )
script = ExtResource( 2 )

[connection signal="item_rect_changed" from="water" to="water" method="calculate_aspect_ratio"]