[gd_scene load_steps=4 format=3]

[ext_resource type="PackedScene" path="res://scenes/arena_base.tscn" id="1_base"]

[sub_resource type="Shader" id="Shader_stars"]
code = "shader_type sky;

// Procedural starfield: sparse hash-based stars over near-black space, with a
// faint blue nebula glow toward the horizon.
void sky() {
	vec3 dir = EYEDIR;
	vec3 col = vec3(0.01, 0.012, 0.02);
	col += vec3(0.02, 0.03, 0.08) * pow(1.0 - abs(dir.y), 3.0);
	vec3 cell = floor(dir * 300.0);
	float h = fract(sin(dot(cell, vec3(12.9898, 78.233, 45.164))) * 43758.5453);
	if (h > 0.998) {
		vec3 in_cell = fract(dir * 300.0) - 0.5;
		float star = smoothstep(0.4, 0.0, length(in_cell));
		col += vec3(star * (0.5 + fract(h * 999.0)));
	}
	COLOR = col;
}
"

[sub_resource type="ShaderMaterial" id="ShaderMaterial_stars"]
shader = SubResource("Shader_stars")

[node name="Arena" instance=ExtResource("1_base")]
sky_material = SubResource("ShaderMaterial_stars")