feat: add Unity 6 client with 2.5D visual system
Unity client features: - WebSocket connection via NativeWebSocket - 2.5D agent visuals with programmatic placeholder sprites - Billboard system for sprites and UI elements - Floating UI panels (name, HP, energy bars) - Speech bubble system with pop-in animation - RTS-style camera controller (WASD + scroll zoom) - Editor tools for prefab creation and scene setup Scripts: - NetworkManager: WebSocket singleton - GameManager: Agent spawning and event handling - AgentVisual: 2.5D sprite and UI creation - Billboard: Camera-facing behavior - SpeechBubble: Animated dialogue display - CameraController: RTS camera with UI input detection - UIManager: HUD and command input 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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unity-client/Assets/Scripts/AgentController.cs
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unity-client/Assets/Scripts/AgentController.cs
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using System.Collections;
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using UnityEngine;
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using UnityEngine.UI;
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using TMPro;
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using TheIsland.Models;
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using TheIsland.Network;
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namespace TheIsland.Agents
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{
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/// <summary>
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/// Controller for individual Agent prefabs.
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/// Handles UI updates, animations, and speech bubbles.
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/// </summary>
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public class AgentController : MonoBehaviour
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{
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#region UI References
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[Header("UI Elements")]
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[SerializeField] private TextMeshProUGUI nameLabel;
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[SerializeField] private TextMeshProUGUI personalityLabel;
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[SerializeField] private Slider hpBar;
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[SerializeField] private Slider energyBar;
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[SerializeField] private Image hpFill;
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[SerializeField] private Image energyFill;
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[Header("Speech Bubble")]
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[SerializeField] private GameObject speechBubble;
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[SerializeField] private TextMeshProUGUI speechText;
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[SerializeField] private float speechDuration = 5f;
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[Header("Visual Feedback")]
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[SerializeField] private Renderer characterRenderer;
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[SerializeField] private Color aliveColor = Color.white;
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[SerializeField] private Color deadColor = new Color(0.3f, 0.3f, 0.3f, 1f);
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[SerializeField] private GameObject deathOverlay;
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[Header("Animation")]
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[SerializeField] private Animator animator;
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#endregion
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#region Private Fields
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private int _agentId;
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private AgentData _currentData;
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private Coroutine _speechCoroutine;
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private Material _characterMaterial;
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#endregion
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#region Properties
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public int AgentId => _agentId;
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public AgentData CurrentData => _currentData;
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public bool IsAlive => _currentData?.IsAlive ?? false;
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#endregion
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#region Initialization
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private void Awake()
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{
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// Cache material for color changes
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if (characterRenderer != null)
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{
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_characterMaterial = characterRenderer.material;
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}
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// Hide speech bubble initially
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if (speechBubble != null)
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{
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speechBubble.SetActive(false);
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}
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// Hide death overlay initially
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if (deathOverlay != null)
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{
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deathOverlay.SetActive(false);
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}
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}
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/// <summary>
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/// Initialize the agent with server data.
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/// Called once when the agent is first spawned.
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/// </summary>
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public void Initialize(AgentData data)
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{
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_agentId = data.id;
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_currentData = data;
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// Set static labels
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if (nameLabel != null)
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{
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nameLabel.text = data.name;
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}
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if (personalityLabel != null)
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{
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personalityLabel.text = data.personality;
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}
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// Set game object name for debugging
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gameObject.name = $"Agent_{data.id}_{data.name}";
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// Apply initial stats
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UpdateStats(data);
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Debug.Log($"[AgentController] Initialized {data.name} (ID: {data.id})");
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}
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#endregion
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#region Stats Update
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/// <summary>
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/// Update the agent's visual state based on server data.
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/// </summary>
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public void UpdateStats(AgentData data)
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{
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_currentData = data;
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// Update HP bar
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if (hpBar != null)
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{
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hpBar.value = data.hp / 100f;
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UpdateBarColor(hpFill, data.hp);
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}
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// Update Energy bar
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if (energyBar != null)
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{
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energyBar.value = data.energy / 100f;
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UpdateBarColor(energyFill, data.energy, isEnergy: true);
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}
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// Handle death state
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if (!data.IsAlive)
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{
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OnDeath();
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}
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else
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{
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OnAlive();
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}
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// Trigger animation based on energy level
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UpdateAnimation();
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}
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private void UpdateBarColor(Image fillImage, int value, bool isEnergy = false)
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{
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if (fillImage == null) return;
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if (isEnergy)
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{
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// Energy: Yellow to Orange gradient
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fillImage.color = Color.Lerp(
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new Color(1f, 0.5f, 0f), // Orange (low)
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new Color(1f, 0.8f, 0f), // Yellow (high)
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value / 100f
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);
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}
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else
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{
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// HP: Red to Green gradient
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fillImage.color = Color.Lerp(
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new Color(1f, 0.2f, 0.2f), // Red (low)
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new Color(0.2f, 1f, 0.2f), // Green (high)
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value / 100f
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);
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}
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}
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private void UpdateAnimation()
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{
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if (animator == null) return;
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if (_currentData == null) return;
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// Set animator parameters based on state
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animator.SetBool("IsAlive", _currentData.IsAlive);
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animator.SetFloat("Energy", _currentData.energy / 100f);
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animator.SetFloat("HP", _currentData.hp / 100f);
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// Trigger low energy animation if starving
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if (_currentData.energy <= 20 && _currentData.IsAlive)
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{
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animator.SetBool("IsStarving", true);
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}
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else
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{
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animator.SetBool("IsStarving", false);
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}
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}
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#endregion
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#region Death Handling
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private void OnDeath()
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{
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Debug.Log($"[AgentController] {_currentData.name} has died!");
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// Change character color to gray
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if (_characterMaterial != null)
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{
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_characterMaterial.color = deadColor;
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}
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// Show death overlay
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if (deathOverlay != null)
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{
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deathOverlay.SetActive(true);
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}
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// Trigger death animation
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if (animator != null)
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{
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animator.SetTrigger("Die");
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}
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// Hide speech bubble
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HideSpeech();
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}
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private void OnAlive()
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{
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// Restore character color
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if (_characterMaterial != null)
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{
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_characterMaterial.color = aliveColor;
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}
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// Hide death overlay
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if (deathOverlay != null)
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{
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deathOverlay.SetActive(false);
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}
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}
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#endregion
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#region Speech Bubble
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/// <summary>
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/// Show speech bubble with text from LLM.
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/// Auto-hides after speechDuration seconds.
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/// </summary>
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public void ShowSpeech(string text)
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{
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if (speechBubble == null || speechText == null)
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{
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Debug.LogWarning($"[AgentController] Speech bubble not configured for {_currentData?.name}");
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return;
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}
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// Don't show speech for dead agents
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if (!IsAlive)
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{
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return;
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}
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// Stop existing speech coroutine if any
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if (_speechCoroutine != null)
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{
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StopCoroutine(_speechCoroutine);
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}
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// Set text and show bubble
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speechText.text = text;
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speechBubble.SetActive(true);
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// Start auto-hide coroutine
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_speechCoroutine = StartCoroutine(HideSpeechAfterDelay());
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Debug.Log($"[AgentController] {_currentData?.name} says: \"{text}\"");
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}
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private IEnumerator HideSpeechAfterDelay()
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{
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yield return new WaitForSeconds(speechDuration);
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HideSpeech();
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}
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public void HideSpeech()
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{
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if (speechBubble != null)
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{
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speechBubble.SetActive(false);
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}
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if (_speechCoroutine != null)
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{
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StopCoroutine(_speechCoroutine);
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_speechCoroutine = null;
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}
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}
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#endregion
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#region Interaction
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/// <summary>
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/// Called when player clicks/taps on this agent.
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/// </summary>
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public void OnClick()
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{
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if (!IsAlive)
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{
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Debug.Log($"[AgentController] Cannot interact with dead agent: {_currentData?.name}");
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return;
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}
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// Feed the agent
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NetworkManager.Instance.FeedAgent(_currentData.name);
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}
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private void OnMouseDown()
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{
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OnClick();
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}
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#endregion
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#region Cleanup
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private void OnDestroy()
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{
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// Clean up material instance
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if (_characterMaterial != null)
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{
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Destroy(_characterMaterial);
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}
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}
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#endregion
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}
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}
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