94 lines
3.4 KiB
C#
94 lines
3.4 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using Cyber.Console;
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namespace Cyber.Util {
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/// <summary>
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/// Renders textures that have text written on them.
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/// </summary>
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public class TextTextureRenderer : MonoBehaviour {
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private static TextTextureRenderer Singleton;
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private static Dictionary<string, Texture2D> Cache =
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new Dictionary<string, Texture2D>();
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/// <summary>
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/// The camera the text is rendered with.
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/// </summary>
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public Camera Camera;
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/// <summary>
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/// The text that is rendered on screen.
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/// </summary>
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public TextMesh Text;
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/// <summary>
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/// Sets the singleton.
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/// </summary>
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public TextTextureRenderer() {
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Singleton = this;
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}
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private Texture2D RenderText(TextTextureProperties text) {
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float Scale = 2.0f / text.Width;
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Text.text = text.Text.Replace("\\n", "\n");
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Text.fontSize = text.FontSize;
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Text.characterSize = text.FontSize * Scale * 0.25f;
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RenderTexture TextTexture = RenderTexture.GetTemporary(text.Width, text.Height);
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RenderTexture OldRT = Camera.targetTexture;
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float OffsetX = -text.Width / 2f;
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float OffsetY = -text.Height / 2f;
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if (text.Centered) {
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OffsetX = 0;
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Text.anchor = TextAnchor.UpperCenter;
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} else {
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Text.anchor = TextAnchor.UpperLeft;
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}
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Camera.orthographicSize = 1.0f * text.Height / text.Width;
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Camera.targetTexture = TextTexture;
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Camera.backgroundColor = text.Background;
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Camera.transform.localPosition = new Vector3(
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-(text.OffsetX + OffsetX) * Scale,
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(text.OffsetY + OffsetY) * Scale);
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Camera.Render();
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Camera.targetTexture = OldRT;
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OldRT = RenderTexture.active;
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Texture2D Result = new Texture2D(text.Width, text.Height);
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RenderTexture.active = TextTexture;
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Result.ReadPixels(new Rect(0, 0, Result.width, Result.height), 0, 0);
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Result.Apply();
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RenderTexture.active = OldRT;
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RenderTexture.ReleaseTemporary(TextTexture);
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return Result;
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}
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/// <summary>
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/// Renders a texture and caches it so it can be used as a texture
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/// for a material (like a computer screen for example).
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/// </summary>
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/// <returns>The text.</returns>
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/// <param name="text">Text.</param>
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/// <param name="forceRender">Whether the texture should be rendered
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/// again even if it's cached.</param>
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public static Texture2D GetText(TextTextureProperties text, bool forceRender = false) {
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string Hash = CreateHash(text);
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if (forceRender || !Cache.ContainsKey(Hash)) {
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Cache[Hash] = Singleton.RenderText(text);
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}
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return Cache[Hash];
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}
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private static string CreateHash(TextTextureProperties text) {
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return text.Text + "," + text.OffsetX + "," + text.OffsetY + "," +
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text.Width + "," + text.Height + "," +
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text.FontSize + "," + text.Background.r + "," +
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text.Background.g + "," + text.Background.b;
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}
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}
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} |