C#

<br />
                rtIncomeLogg.AppendText(inData);<br />
<br />
                if (AUTOSCROLL)<br />
                {<br />
                    rtIncomeLogg.HideSelection = false;<br />
                    rtIncomeLogg.Select(rtIncomeLogg.TextLength, 0);<br />
                }<br />

<br />
using System;<br />
using MTV3D65;<br />
<br />
namespace Template<br />
{<br />
<br />
	/// <summary><br />
	/// Summary description for Grass.<br />
	/// </summary><br />
	public class GrassFactory<br />
	{<br />
<br />
		const float LandScapeSize = 256 * 8;   //the size of the landscape<br />
		const float GrassNumber = 200;         //the number of grassmeshes on a tile<br />
		const float NumberOfTiles = 12; <br />
<br />
		private int i;<br />
		private int x;<br />
		private int y;<br />
		private GrassType[,,] Grass;<br />
		private TVMesh[] GrassMeshes = new TVMesh[4];  //number of mesh types (grass, busg, rock...)<br />
<br />
		<br />
		//These variables are used internally. Don't f*** with them. :)<br />
		private float CamTilePosX;<br />
		private float CamTilePosY;<br />
		private float Distance;<br />
		private float DistX;<br />
		private float DistZ;<br />
		private float TranspDistance;<br />
		private float Transparency;<br />
		private float OneTileSize;<br />
		private float Denominator;<br />
		private float Transp2;<br />
<br />
		TVGlobals Globals;<br />
		TVEngine TV;<br />
<br />
<br />
		public GrassFactory(TVLandscape Land, TVScene Scene)<br />
		{<br />
			Globals = new TVGlobals();<br />
			TV = new TVEngine();<br />
<br />
			float PosX;<br />
			float PosZ;<br />
			float MeshRandom;<br />
			Random random = new Random();<br />
			<br />
			GrassType[,,] Grass = new GrassType[(int)NumberOfTiles, (int)NumberOfTiles, (int)GrassNumber];<br />
			  <br />
			OneTileSize = LandScapeSize / NumberOfTiles;<br />
			  <br />
			GrassMeshes[0] = Scene.CreateBillboard(Globals.GetTex("Tree01"), 0, 0, 0, 8, 4, "", true);<br />
			GrassMeshes[1] = Scene.CreateBillboard(Globals.GetTex("Tree02"), 0, 0, 0, 5, 6, "", true);<br />
			GrassMeshes[2] = Scene.CreateBillboard(Globals.GetTex("Tree03"), 0, 0, 0, 4, 7, "", true);<br />
			GrassMeshes[3] = Scene.CreateBillboard(Globals.GetTex("Tree04"), 0, 0, 0, 3, 2, "", true);<br />
			GrassMeshes[0].SetCollisionEnable(false);<br />
			GrassMeshes[1].SetCollisionEnable(false);<br />
			GrassMeshes[2].SetCollisionEnable(false);<br />
			GrassMeshes[3].SetCollisionEnable(false);<br />
			  <br />
			for (y = 0; y < (NumberOfTiles - 1); y++) <br />
			{<br />
				for (x = 0; x < (NumberOfTiles - 1); x++) <br />
				{<br />
					//Grass[x, y, 0].MeshType = (int)GrassNumber;   //IMPORTANT: this holds the number of meshes on this tile!!!! I know it's ugly but it works.<br />
					for (i = 1; i < GrassNumber; i++) <br />
					{<br />
						TV.AddToLog("X:" + x + " Y:" + y + " i:" + i);<br />
<br />
						PosX = OneTileSize * x + (float)random.NextDouble() * OneTileSize;<br />
						PosZ = OneTileSize * y + (float)random.NextDouble() * OneTileSize;<br />
						MeshRandom = (float)random.NextDouble();<br />
						Grass[x, y, i].Position.x = PosX;<br />
						Grass[x, y, i].Position.y = Land.GetHeight(PosX, PosZ);<br />
						Grass[x, y, i].Position.z = PosZ;<br />
						Grass[x, y, i].ColorR = 0.9f;<br />
						Grass[x, y, i].ColorG = 0.9f;<br />
						Grass[x, y, i].ColorB = 0.8f;<br />
						Grass[x, y, i].Size = Globals.Vector((float)random.NextDouble() * 0.4f + 0.8f, (float)random.NextDouble() * 0.4f + 0.8f, (float)random.NextDouble() * 0.4f + 0.8f);<br />
			          <br />
						if (MeshRandom > 0.2) <br />
						{      //Type of mesh<br />
							Grass[x, y, i].MeshType = 0;<br />
						}<br />
						else if (MeshRandom > 0.15) <br />
						{<br />
							Grass[x, y, i].MeshType = 1;<br />
						}<br />
						else if (MeshRandom > 0.1) <br />
						{<br />
							Grass[x, y, i].MeshType = 2;<br />
						}<br />
						else<br />
						{<br />
							Grass[x, y, i].MeshType = 3;<br />
						}<br />
					}<br />
				}<br />
			}<br />
			  <br />
			TranspDistance = OneTileSize * 0.9f;  //this is the range of transparent area. 0.9999: the meshes pop up, 0:everything is transparent at least a bit<br />
			  <br />
			Denominator = 1 / ((OneTileSize * OneTileSize) - (TranspDistance * TranspDistance)); //needed for calculation speedup<br />
			Transp2 = TranspDistance * TranspDistance;   //needed for calculation speedup<br />
		}<br />
<br />
		public void Render(MTV3D65.TV_3DVECTOR CamPos)  //this tells what tiles should be rendered. Campos is the camera's position vector<br />
		{<br />
			GrassMeshes[0].Enable(true);<br />
			GrassMeshes[1].Enable(true);<br />
			GrassMeshes[2].Enable(true);<br />
			GrassMeshes[3].Enable(true);<br />
			CamTilePosX = (CamPos.x - OneTileSize / 2) / OneTileSize;<br />
			CamTilePosY = (CamPos.z - OneTileSize / 2) / OneTileSize;<br />
<br />
			DrawSurround(CamTilePosX, CamTilePosY, CamPos);<br />
<br />
			if (CamTilePosX - 1 >= 0 && CamTilePosY - 1 >= 0) <br />
				DrawSurround(CamTilePosX - 1, CamTilePosY - 1, CamPos);<br />
			<br />
			if (CamTilePosY - 1 >= 0) <br />
				DrawSurround( CamTilePosX, CamTilePosY - 1, CamPos);<br />
		<br />
			if (CamTilePosX + 1 < NumberOfTiles && CamTilePosY - 1 >= 0) <br />
				DrawSurround( CamTilePosX + 1, CamTilePosY - 1, CamPos);<br />
			<br />
			if (CamTilePosX - 1 >= 0 && CamTilePosY + 1 < NumberOfTiles) <br />
				DrawSurround( CamTilePosX - 1, CamTilePosY + 1, CamPos);<br />
			<br />
			if (CamTilePosY + 1 < NumberOfTiles) <br />
				DrawSurround( CamTilePosX, CamTilePosY + 1, CamPos);<br />
			<br />
			if (CamTilePosX + 1 < NumberOfTiles) <br />
				DrawSurround( CamTilePosX + 1, CamTilePosY, CamPos);<br />
			<br />
			if (CamTilePosX + 1 < NumberOfTiles && CamTilePosY + 1 < NumberOfTiles) <br />
				DrawSurround( CamTilePosX + 1, CamTilePosY + 1, CamPos);<br />
			<br />
			if (CamTilePosX - 1 >= 0) <br />
				DrawSurround( CamTilePosX - 1, CamTilePosY, CamPos);<br />
			<br />
			GrassMeshes[0].Enable(false);<br />
			GrassMeshes[1].Enable(false);<br />
			GrassMeshes[2].Enable(false);<br />
			GrassMeshes[3].Enable(false);<br />
		}<br />
		<br />
		private void DrawSurround(float x, float y, MTV3D65.TV_3DVECTOR CamPos)<br />
		{<br />
			for (i = 1; i < Grass[(int)x, (int)y, 0].MeshType; i++) <br />
			{<br />
				GrassMeshes[Grass[(int)x, (int)y, i].MeshType].SetPosition(Grass[(int)x, (int)y, i].Position.x, Grass[(int)x, (int)y, i].Position.y, Grass[(int)x, (int)y, i].Position.z);<br />
				GrassMeshes[Grass[(int)x, (int)y, i].MeshType].SetScale(Grass[(int)x, (int)y, i].Size.x, Grass[(int)x, (int)y, i].Size.y, Grass[(int)x, (int)y, i].Size.z);    //you may disable this line to gain a few (5-6) FPS<br />
				DistX = Grass[(int)x, (int)y, i].Position.x - CamPos.x;<br />
				DistZ = Grass[(int)x, (int)y, i].Position.z - CamPos.z;<br />
				Distance = (DistX * DistX + DistZ * DistZ);<br />
<br />
				if (Distance > Transp2) <br />
				{<br />
					Transparency = 1 - ((Distance - Transp2) * Denominator);<br />
					if (Transparency > 0) <br />
					{<br />
						GrassMeshes[Grass[(int)x, (int)y, i].MeshType].SetColor(Globals.RGBA(Grass[(int)x, (int)y, i].ColorR, Grass[(int)x, (int)y, i].ColorG, Grass[(int)x, (int)y, i].ColorB, Transparency));<br />
						GrassMeshes[Grass[(int)x, (int)y, i].MeshType].Render();<br />
					}<br />
				}<br />
				else<br />
				{<br />
					GrassMeshes[Grass[(int)x, (int)y, i].MeshType].SetColor(Globals.RGBA(Grass[(int)x, (int)y, i].ColorR, Grass[(int)x, (int)y, i].ColorG, Grass[(int)x, (int)y, i].ColorB, 1));<br />
					GrassMeshes[Grass[(int)x, (int)y, i].MeshType].Render();<br />
				}<br />
					<br />
			}<br />
		}<br />
	}<br />
}<br />

<br />
using System;<br />
using MTV3D65;<br />
<br />
namespace Template<br />
{<br />
	/// <summary><br />
	/// Summary description for GrassType.<br />
	/// </summary><br />
	public class GrassType<br />
	{<br />
<br />
		public int MeshType;<br />
		public MTV3D65.TV_3DVECTOR Position;<br />
		public MTV3D65.TV_3DVECTOR Size;   //maybe you don't need this<br />
		public float ColorR;<br />
		public float ColorG;<br />
		public float ColorB;<br />
<br />
		public GrassType()<br />
		{<br />
			MeshType = 0;<br />
			Position = new TV_3DVECTOR();<br />
			Size = new TV_3DVECTOR();<br />
			ColorR = 0;<br />
			ColorG = 0;<br />
			ColorR = 0;<br />
		}<br />
	}<br />
}<br />