app.py

import streamlit as st
import os, base64, shutil, random
from pathlib import Path

@st.cache_data
def load_aframe_and_extras():
    return """
    <script src="https://aframe.io/releases/1.2.0/aframe.min.js"></script>
    <script src="https://unpkg.com/[email protected]/dist/aframe-event-set-component.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/aframe-volumetric-fog@latest/dist/aframe-volumetric-fog.min.js"></script>
    <script>
    AFRAME.registerComponent('draggable', {
      init: function () {
        this.el.setAttribute('class', 'raycastable');
        this.el.setAttribute('cursor-listener', '');
        this.dragHandler = this.dragMove.bind(this);
        this.el.sceneEl.addEventListener('mousemove', this.dragHandler);
        this.el.addEventListener('mousedown', this.onDragStart.bind(this));
        this.el.addEventListener('mouseup', this.onDragEnd.bind(this));
        this.camera = document.querySelector('[camera]');
      },
      remove: function () {
        this.el.removeAttribute('cursor-listener');
        this.el.sceneEl.removeEventListener('mousemove', this.dragHandler);
      },
      onDragStart: function (evt) {
        this.isDragging = true;
        this.el.emit('dragstart');
      },
      onDragEnd: function (evt) {
        this.isDragging = false;
        this.el.emit('dragend');
      },
      dragMove: function (evt) {
        if (!this.isDragging) return;
        var camera = this.camera.getObject3D('camera');
        var worldPos = new THREE.Vector3();
        camera.getWorldPosition(worldPos);
        var worldDir = new THREE.Vector3();
        camera.getWorldDirection(worldDir);
        var camX = worldPos.x;
        var camY = worldPos.y;
        var camZ = worldPos.z;
        var dirX = worldDir.x;
        var dirY = worldDir.y;
        var dirZ = worldDir.z;
        var t = -camY / dirY;
        var moveX = camX + t * dirX;
        var moveZ = camZ + t * dirZ;
        this.el.setAttribute('position', moveX + " " + 0.0 + " " + moveZ);
      }
    });

    AFRAME.registerComponent('undulating-rotation', {
      schema: {
        amplitude: { type: 'number', default: 10 },
        frequency: { type: 'number', default: 0.3 }
      },
      init: function () {
        this.initialRotation = Math.random() * 360;
        this.time = 0;
      },
      tick: function (time, deltaTime) {
        this.time += deltaTime / 1000;
        const rotationAmount = Math.sin(this.time * this.data.frequency) * this.data.amplitude;
        this.el.setAttribute('rotation', { x: 0, y: this.initialRotation + rotationAmount, z: 0 });
      }
    });
    </script>
    """

@st.cache_data
def encode_file(file_path):
    with open(file_path, "rb") as file:
        return base64.b64encode(file.read()).decode()

@st.cache_data
def generate_tilemap(files, directory, grid_width, grid_height, bump_map_url, max_unique_models=5):
    assets = "<a-assets>"
    entities = ""
    tile_size = 1
    start_x = -(grid_width * tile_size) / 2
    start_z = -(grid_height * tile_size) / 2
    available_models = [f for f in files if f.endswith(('.obj', '.glb'))]
    available_images = [f for f in files if f.endswith(('.webp', '.png'))]
    encoded_files = {}

    unique_files = random.sample(files, min(len(files), max_unique_models))

    for file in unique_files:
        file_path = os.path.join(directory, file)
        file_type = file.split('.')[-1]
        encoded_file = encode_file(file_path)
        encoded_files[file] = encoded_file
        if file_type in ['obj', 'glb']:
            assets += f'<a-asset-item id="{Path(file).stem}" src="data:application/octet-stream;base64,{encoded_file}"></a-asset-item>'
        elif file_type in ['webp', 'png']:
            mime_type = f"image/{file_type}"
            assets += f'<img id="{Path(file).stem}" src="data:{mime_type};base64,{encoded_file}" />'

    assets += f"""
      <a-material id="ground-mat" color="#78815d" normal-map="{bump_map_url}" normal-texture-repeat="{grid_width * 2} {grid_height * 2}"></a-material>
    """
    assets += "</a-assets>"

    for i in range(grid_width):
        for j in range(grid_height):
            x = start_x + (i * tile_size)
            z = start_z + (j * tile_size)
            position = f"{x} 0 {z}"

            chosen_file = random.choice(files)
            file_type = chosen_file.split('.')[-1]
            file_stem = Path(chosen_file).stem
            rotation = f"0 0 0" # Initial rotation can be 0 for the undulation to be clearer
            amplitude = random.uniform(5, 15)
            frequency = random.uniform(0.1, 0.5)
            scale = "0.5 0.5 0.5"

            if file_type == 'obj':
                entities += f'<a-entity position="{position}" rotation="{rotation}" scale="{scale}" obj-model="obj: #{file_stem}" class="raycastable" draggable undulating-rotation="amplitude: {amplitude}; frequency: {frequency}"></a-entity>'
            elif file_type == 'glb':
                entities += f'<a-entity position="{position}" rotation="{rotation}" scale="{scale}" gltf-model="#{file_stem}" class="raycastable" draggable undulating-rotation="amplitude: {amplitude}; frequency: {frequency}"></a-entity>'
            elif file_type in ['webp', 'png']:
                if available_images:
                    random_image = random.choice(available_images)
                    image_stem = Path(random_image).stem
                    entities += f'<a-plane position="{position}" rotation="-90 0 0" width="{tile_size * 0.8}" height="{tile_size * 0.8}" material="src: #{image_stem}" class="raycastable" draggable></a-plane>'

    return assets, entities

def main():
    st.set_page_config(layout="wide")
    with st.sidebar:
        st.markdown("### 🤖 3D AI Using Claude 3.5 Sonnet for AI Pair Programming")
        st.markdown("[Open 3D Animation Toolkit](https://huggingface.co/spaces/awacke1/3d_animation_toolkit)", unsafe_allow_html=True)
        st.markdown("### ⬆️ Upload")
        uploaded_files = st.file_uploader("Add files:", accept_multiple_files=True, key="file_uploader")
        st.markdown("### 🗺️ Grid Size")
        grid_width = st.slider("Grid Width", 1, 10, 8)
        grid_height = st.slider("Grid Height", 1, 10, 5)
        st.markdown("### 🖼️ Bump Map")
        bump_map_file = st.file_uploader("Upload Bump Map (png)", type=["png"], key="bump_map_uploader")
        st.markdown("### ℹ️ Instructions")
        st.write("- Click and drag to move objects")
        st.write("- Mouse wheel to zoom")
        st.write("- Right-click and drag to rotate view")
        st.markdown("### 📁 Directory")
        directory = st.text_input("Enter path:", ".", key="directory_input")

    if not os.path.isdir(directory):
        st.sidebar.error("Invalid directory path")
        return
    file_types = ['obj', 'glb', 'webp', 'png']
    if uploaded_files:
        for uploaded_file in uploaded_files:
            file_extension = Path(uploaded_file.name).suffix.lower()[1:]
            if file_extension in file_types:
                with open(os.path.join(directory, uploaded_file.name), "wb") as f:
                    shutil.copyfileobj(uploaded_file, f)
                st.sidebar.success(f"Uploaded: {uploaded_file.name}")
            else:
                st.sidebar.warning(f"Skipped unsupported file: {uploaded_file.name}")
    files = [f for f in os.listdir(directory) if f.split('.')[-1] in file_types]

    bump_map_url = ""
    if bump_map_file:
        bump_map_bytes = bump_map_file.read()
        bump_map_base64 = base64.b64encode(bump_map_bytes).decode()
        bump_map_url = f"data:image/png;base64,{bump_map_base64}"
    elif os.path.exists(os.path.join(directory, "bump_map.png")): # Optional: Check for a default bump map
        bump_map_url = "bump_map.png"

    aframe_scene = f"""
    <a-scene embedded style="height: 600px; width: 100%;">
        {load_aframe_and_extras()}
        <a-entity id="rig" position="0 {max(grid_width, grid_height) * 0.8} {max(grid_width, grid_height) * 0.8}" rotation="-45 0 0">
            <a-camera id="camera" look-controls wasd-controls="enabled: false" cursor="rayOrigin: mouse"></a-camera>
        </a-entity>

        <a-entity volumetric-fog="density: 0.02; color: #cccccc; near: 1; far: 50; animation: property: volumetric-fog.density; to: 0.04; dur: 8000; loop: true; dir: alternate"></a-entity>

        <a-entity id="skybox">
            <a-plane position="0 0 -50" rotation="0 0 0" width="100" height="100" material="color: #87CEEB"></a-plane>
            <a-plane position="0 0 50" rotation="0 180 0" width="100" height="100" material="color: #ADD8E6"></a-plane>
            <a-plane position="50 0 0" rotation="0 90 0" width="100" height="100" material="color: #B0E0E6"></a-plane>
            <a-plane position="-50 0 0" rotation="0 -90 0" width="100" height="100" material="color: #E0FFFF"></a-plane>
            <a-plane position="0 50 0" rotation="-90 0 0" width="100" height="100" material="color: #ADD8E6"></a-plane>
            <a-plane position="0 -50 0" rotation="90 0 0" width="100" height="100" material="color: #F0F8FF"></a-plane>
        </a-entity>

        <a-plane id="ground" position="0 -0.5 0" rotation="-90 0 0" width="{grid_width}" height="{grid_height}" material="src: #ground-mat"></a-plane>

        <a-entity id="tilemap">
            {''.join(generate_tilemap(files, directory, grid_width, grid_height, bump_map_url))}
        </a-entity>

        <a-entity light="type: ambient; color: #445451"></a-entity>
        <a-entity light="type: directional; color: #FFF; intensity: 0.8" position="-1 1 2"></a-entity>
    </a-scene>
    """
    st.components.v1.html(aframe_scene, height=600)

if __name__ == "__main__":
    main()