107 lines
4.2 KiB
C#
107 lines
4.2 KiB
C#
using System;
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using TrueCraft.API.Logic;
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using Microsoft.Xna.Framework.Graphics;
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using Microsoft.Xna.Framework;
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using TrueCraft.Core.Logic.Blocks;
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namespace TrueCraft.Client.Rendering.Blocks
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{
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public class WheatRenderer : BlockRenderer
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{
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static WheatRenderer()
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{
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BlockRenderer.RegisterRenderer(CropsBlock.BlockID, new WheatRenderer());
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}
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private Vector2[][] Textures;
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public WheatRenderer()
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{
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var textureMap = new Vector2(8, 5);
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Textures = new Vector2[8][];
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for (int i = 0; i < 8; i++)
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{
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Textures[i] = new[]
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{
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textureMap + Vector2.UnitX + Vector2.UnitY,
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textureMap + Vector2.UnitY,
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textureMap,
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textureMap + Vector2.UnitX,
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};
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for (int j = 0; j < Textures[i].Length; j++)
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Textures[i][j] *= new Vector2(16f / 256f);
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textureMap += new Vector2(1, 0);
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}
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}
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public override VertexPositionNormalColorTexture[] Render(BlockDescriptor descriptor, Vector3 offset,
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VisibleFaces faces, Tuple<int, int> textureMap, int indiciesOffset, out int[] indicies)
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{
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// Wheat is rendered by rendering the four vertical faces of a cube, then moving them
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// towards the middle. We also render a second set of four faces so that you can see
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// each face from the opposite side (to avoid culling)
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var texture = Textures[0];
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if (descriptor.Metadata < Textures.Length)
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texture = Textures[descriptor.Metadata];
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indicies = new int[4 * 2 * 6];
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var verticies = new VertexPositionNormalColorTexture[4 * 2 * 6];
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int[] _indicies;
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var center = new Vector3(-0.5f, -0.5f, -0.5f);
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for (int _side = 0; _side < 4; _side++) // Y faces are the last two in the CubeFace enum, so we can just iterate to 4
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{
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var side = (CubeFace)_side;
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var quad = CreateQuad(side, center, texture, 0, indiciesOffset, out _indicies, Color.White);
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if (side == CubeFace.NegativeX || side == CubeFace.PositiveX)
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{
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for (int i = 0; i < quad.Length; i++)
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{
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quad[i].Position.X *= 0.5f;
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quad[i].Position += offset;
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}
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}
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else
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{
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for (int i = 0; i < quad.Length; i++)
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{
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quad[i].Position.Z *= 0.5f;
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quad[i].Position += offset;
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}
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}
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Array.Copy(quad, 0, verticies, _side * 4, 4);
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Array.Copy(_indicies, 0, indicies, _side * 6, 6);
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}
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indiciesOffset += 4 * 6;
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for (int _side = 0; _side < 4; _side++)
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{
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var side = (CubeFace)_side;
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var quad = CreateQuad(side, center, texture, 0, indiciesOffset, out _indicies, Color.White);
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if (side == CubeFace.NegativeX || side == CubeFace.PositiveX)
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{
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for (int i = 0; i < quad.Length; i++)
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{
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quad[i].Position.X *= 0.5f;
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quad[i].Position.X = -quad[i].Position.X;
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quad[i].Position += offset;
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}
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}
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else
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{
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for (int i = 0; i < quad.Length; i++)
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{
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quad[i].Position.Z *= 0.5f;
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quad[i].Position.Z = -quad[i].Position.Z;
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quad[i].Position += offset;
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}
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}
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Array.Copy(quad, 0, verticies, _side * 4 + 4 * 4, 4);
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Array.Copy(_indicies, 0, indicies, _side * 6 + 6 * 4, 6);
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}
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for (int i = 0; i < verticies.Length; i++)
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{
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verticies[i].Position.Y -= 1 / 16f;
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verticies[i].Position -= center;
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}
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return verticies;
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}
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}
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} |