private void AlignPlantToTerrain(Landscape terrain, PlantUnit plant)
{
var translation = new Vector3(plant.Translation.X, terrain.getLandscapeHeight(plant.Translation.X + _meshCenter.X,
plant.Translation.Z + _meshCenter.Z), plant.Translation.Z);
plant.Translation = translation;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="Translation">Value of grass translation </param>
/// <param name="Rotation">Value of grass rotation </param>
/// <param name="Scale">Value of grass scaling </param>
/// <param name="textureID">Texture ID param</param>
/// <param name="previous">Previous plant for wind loop value</param>
public PlantUnit(Vector3 Translation, Vector3 Rotation, Vector3 Scale, uint textureID,
PlantUnit previous)
{
this.Translation = Translation;
this.Scale = Scale;
this.WindLoop = previous != null ? previous.WindLoop : Convert.ToSingle(new Random().NextDouble() * 360.0f);
this.textureID = textureID;
}
public static void AddBuilderUserAttribute(PlantUnit plant, VAO buffer, Int32 plantsCountBeforeAddition)
{
float windS = 0.0f, tSampler = 0.0f;
float[,] matrixColumn1 = new float[1, 4];
float[,] matrixColumn2 = new float[1, 4];
float[,] matrixColumn3 = new float[1, 4];
float[,] matrixColumn4 = new float[1, 4];
var modelMatrix = Matrix4.Identity;
modelMatrix *= Matrix4.CreateRotationY(plant.Rotation.Y);
modelMatrix *= Matrix4.CreateScale(plant.Scale);
modelMatrix *= Matrix4.CreateTranslation(plant.Translation);
matrixColumn1[0, 0] = modelMatrix[0, 0];
matrixColumn1[0, 1] = modelMatrix[0, 1];
matrixColumn1[0, 2] = modelMatrix[0, 2];
matrixColumn1[0, 3] = modelMatrix[0, 3];
matrixColumn2[0, 0] = modelMatrix[1, 0];
matrixColumn2[0, 1] = modelMatrix[1, 1];
matrixColumn2[0, 2] = modelMatrix[1, 2];
matrixColumn2[0, 3] = modelMatrix[1, 3];
matrixColumn3[0, 0] = modelMatrix[2, 0];
matrixColumn3[0, 1] = modelMatrix[2, 1];
matrixColumn3[0, 2] = modelMatrix[2, 2];
matrixColumn3[0, 3] = modelMatrix[2, 3];
matrixColumn4[0, 0] = modelMatrix[3, 0];
matrixColumn4[0, 1] = modelMatrix[3, 1];
matrixColumn4[0, 2] = modelMatrix[3, 2];
matrixColumn4[0, 3] = modelMatrix[3, 3];
windS = plant.WindLoop;
tSampler = plant.textureID;
IntPtr singleAttributeOffset = new IntPtr(sizeof(float) * plantsCountBeforeAddition);
IntPtr singleAttributeValueSize = new IntPtr(sizeof(float));
IntPtr vectorAttributeOffset = new IntPtr(sizeof(float) * matrixColumn1.Length * plantsCountBeforeAddition);
IntPtr vectorAttributeValueSize = new IntPtr(sizeof(float) * matrixColumn1.Length);
VAOManager.AddUserSingleAttribute(buffer, 0, windS, singleAttributeOffset, singleAttributeValueSize);
VAOManager.AddUserSingleAttribute(buffer, 1, tSampler, singleAttributeOffset, singleAttributeValueSize);
VAOManager.AddUserVectorAttribute(buffer, 0, matrixColumn1, vectorAttributeOffset, vectorAttributeValueSize);
VAOManager.AddUserVectorAttribute(buffer, 1, matrixColumn2, vectorAttributeOffset, vectorAttributeValueSize);
VAOManager.AddUserVectorAttribute(buffer, 2, matrixColumn3, vectorAttributeOffset, vectorAttributeValueSize);
VAOManager.AddUserVectorAttribute(buffer, 3, matrixColumn4, vectorAttributeOffset, vectorAttributeValueSize);
}
public void add(PlantUnit plant, Landscape terrain = null)
{
//AlignPlantToTerrain(terrain, plant);
// TODO : assemble buffer first or if it's already assembled just add new values to buffer
if (_bufferAssembled)
{
//PlantUserAttributeBuilder.AddBuilderUserAttribute(plant, _buffer, _plants.Count);
}
else
{
this._bufferAssembled = true;
}
this._plants.Add(plant);
}
