first commit

.gitattributes

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+# Normalize EOL for all files that Git considers text files.
+* text=auto eol=lf

.gitignore

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+# Godot 4+ specific ignores
+.godot/

icon.svg

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+<svg height="128" width="128" xmlns="http://www.w3.org/2000/svg"><rect x="2" y="2" width="124" height="124" rx="14" fill="#363d52" stroke="#212532" stroke-width="4"/><g transform="scale(.101) translate(122 122)"><g fill="#fff"><path d="M105 673v33q407 354 814 0v-33z"/><path fill="#478cbf" d="m105 673 152 14q12 1 15 14l4 67 132 10 8-61q2-11 15-15h162q13 4 15 15l8 61 132-10 4-67q3-13 15-14l152-14V427q30-39 56-81-35-59-83-108-43 20-82 47-40-37-88-64 7-51 8-102-59-28-123-42-26 43-46 89-49-7-98 0-20-46-46-89-64 14-123 42 1 51 8 102-48 27-88 64-39-27-82-47-48 49-83 108 26 42 56 81zm0 33v39c0 276 813 276 813 0v-39l-134 12-5 69q-2 10-14 13l-162 11q-12 0-16-11l-10-65H447l-10 65q-4 11-16 11l-162-11q-12-3-14-13l-5-69z"/><path d="M483 600c3 34 55 34 58 0v-86c-3-34-55-34-58 0z"/><circle cx="725" cy="526" r="90"/><circle cx="299" cy="526" r="90"/></g><g fill="#414042"><circle cx="307" cy="532" r="60"/><circle cx="717" cy="532" r="60"/></g></g></svg>

icon.svg.import

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+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://csyjb53nj0273"
+path="res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://icon.svg"
+dest_files=["res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
+svg/scale=1.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false

main.tscn

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+[gd_scene load_steps=3 format=3 uid="uid://bmh3d4xt71wx5"]
+
+[ext_resource type="Shader" uid="uid://brqn8rgcnleng" path="res://stairs.gdshader" id="1_ig7tw"]
+
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_ig7tw"]
+shader = ExtResource("1_ig7tw")
+shader_parameter/step_count = 168
+shader_parameter/inner = 101
+shader_parameter/pixel_size = 121
+shader_parameter/highlight = 0
+shader_parameter/grid_thickness = 0.125
+shader_parameter/offset = 0.0
+
+[node name="Main" type="Control"]
+layout_mode = 3
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+
+[node name="ColorRect" type="ColorRect" parent="."]
+material = SubResource("ShaderMaterial_ig7tw")
+custom_minimum_size = Vector2(128, 128)
+layout_mode = 1
+anchors_preset = 8
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+offset_left = -324.0
+offset_top = -324.0
+offset_right = 324.0
+offset_bottom = 324.0
+grow_horizontal = 2
+grow_vertical = 2

project.godot

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+; Engine configuration file.
+; It's best edited using the editor UI and not directly,
+; since the parameters that go here are not all obvious.
+;
+; Format:
+;   [section] ; section goes between []
+;   param=value ; assign values to parameters
+
+config_version=5
+
+[application]
+
+config/name="stairs"
+config/features=PackedStringArray("4.4")
+config/icon="res://icon.svg"

stairs.gdshader

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+shader_type canvas_item;
+uniform int step_count = 168;
+uniform int inner = 101;
+uniform int pixel_size = 121;
+uniform int highlight = 0;
+uniform float grid_thickness = 0.125;
+uniform float offset = 0.0;
+
+float mask(float inner_radius, float outer_radius, vec2 p) {
+	if (inner_radius < length(p) && length(p) < outer_radius) {
+		return 1.0;
+	} else {
+		return 0.0;
+	}
+}
+
+float f(vec2 uv, vec2 p) {
+	
+	float angle = atan(p.y, p.x) / PI / 2.0 + 0.5 + offset/float(step_count);
+	float color = round(angle * float(step_count)) / float(step_count);
+
+
+	return color;
+}
+
+float grid_mask(vec2 uv) {
+	float x = mod(uv.x*float(pixel_size), 1.0);
+	float y = mod(uv.y*float(pixel_size), 1.0);
+	return step(grid_thickness, x)* step(grid_thickness, y);
+}
+
+void fragment() {
+	vec2 p = UV - vec2(0.5, 0.5);
+	p = round(p * float(pixel_size)) / float(pixel_size);
+	
+	float color = f(UV, p);
+	//color *= edge_mask(UV, vec2(0.002, 0.002));
+	vec3 chroma = vec3(color, color, color);
+	int i = int(color * float(step_count));
+	if (i == highlight) {
+		chroma = vec3(0.0, 1.0, 0.0);
+	} else if (i % 2 == 0) {
+		chroma = vec3(0.3, 0.3, 0.3);
+	} else if (i % 2 == 1) {
+		chroma = vec3(0.6, 0.6, 0.6);
+	}
+	chroma *= grid_mask(UV);
+	chroma *= mask(float(inner) / float(pixel_size * 2), 0.5, p);
+	COLOR = vec4(chroma, 1.0);
+	
+}
+
+//void light() {
+//	// Called for every pixel for every light affecting the CanvasItem.
+//	// Uncomment to replace the default light processing function with this one.
+//}

stairs.gdshader.uid

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+uid://brqn8rgcnleng