Cyber/Assets/Scripts/Util/TextTextureRenderer.cs

82 lines
2.9 KiB
C#

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Cyber.Console;
namespace Cyber.Util {
/// <summary>
/// Renders textures that have text written on them.
/// </summary>
public class TextTextureRenderer : MonoBehaviour {
private static TextTextureRenderer Singleton;
private static Dictionary<string, Texture2D> Cache =
new Dictionary<string, Texture2D>();
/// <summary>
/// The camera the text is rendered with.
/// </summary>
public Camera Camera;
/// <summary>
/// The text that is rendered on screen.
/// </summary>
public TextMesh Text;
/// <summary>
/// Sets the singleton.
/// </summary>
public TextTextureRenderer() {
Singleton = this;
}
private Texture2D RenderText(TextTextureProperties text) {
Text.text = text.Text.Replace("\\n", "\n");
Text.fontSize = text.FontSize;
Text.characterSize = 0.5f * text.FontSize / text.Width;
RenderTexture TextTexture = RenderTexture.GetTemporary(text.Width, text.Height);
RenderTexture OldRT = Camera.targetTexture;
Camera.targetTexture = TextTexture;
Camera.backgroundColor = text.Background;
Camera.Render();
Camera.targetTexture = OldRT;
OldRT = RenderTexture.active;
Texture2D Result = new Texture2D(text.Width, text.Height);
RenderTexture.active = TextTexture;
Result.ReadPixels(new Rect(0, 0, Result.width, Result.height), 0, 0);
Result.Apply();
RenderTexture.active = OldRT;
RenderTexture.ReleaseTemporary(TextTexture);
return Result;
}
/// <summary>
/// Renders a texture and caches it so it can be used as a texture
/// for a material (like a computer screen for example).
/// </summary>
/// <returns>The text.</returns>
/// <param name="text">Text.</param>
/// <param name="forceRender">Whether the texture should be rendered
/// again even if it's cached.</param>
public static Texture2D GetText(TextTextureProperties text, bool forceRender = false) {
string Hash = CreateHash(text);
if (forceRender || !Cache.ContainsKey(Hash)) {
Cache[Hash] = Singleton.RenderText(text);
Term.Println("Created a new texture for:");
Term.Println(Hash);
Term.Println("====");
}
return Cache[Hash];
}
private static string CreateHash(TextTextureProperties text) {
return text.Text + "," + text.Width + "," + text.Height + "," +
text.FontSize + "," + text.Background.r + "," +
text.Background.g + "," + text.Background.b;
}
}
}