示例#1
0
 private void OnApplicationQuit()
 {
     ChunkGenerator.DestroyBuffers();
     DensityFunction.DestroyBuffer();
 }
    // Update is called once per frame
    void Update()
    {
        bool valuesChanged = false;
        Ray  mouseRay      = cam.ScreenPointToRay(Input.mousePosition);

        ChangeBrushSize();

        float distance;

        if (bounds.IntersectRay(mouseRay, out distance))
        {
            if (!brush.activeSelf)
            {
                brush.SetActive(true);
            }

            ChangeBrushDistance();

            MoveBrush(mouseRay, distance);

            if (Input.GetMouseButton(0))
            {
                Vector3 center = mouseRay.GetPoint(rayDistance);
                //left click
                for (int i = 0; i < values.Length; i++)
                {
                    Vector3 diff = new Vector3(values[i].x, values[i].y, values[i].z) - center;
                    if (diff.x * diff.x + diff.y * diff.y + diff.z * diff.z < brushSize * brushSize)
                    {
                        values[i].w  += 0.01f;
                        valuesChanged = true;
                        values[i].w   = Utility.Constrain(0, 1, values[i].w);
                    }
                }
            }
            else if (Input.GetMouseButton(1))
            {
                Vector3 center = mouseRay.GetPoint(rayDistance);
                //right click
                for (int i = 0; i < values.Length; i++)
                {
                    Vector3 diff = new Vector3(values[i].x, values[i].y, values[i].z) - center;
                    if (diff.x * diff.x + diff.y * diff.y + diff.z * diff.z < brushSize * brushSize)
                    {
                        values[i].w  -= 0.01f;
                        valuesChanged = true;
                        values[i].w   = Utility.Constrain(0, 1, values[i].w);
                    }
                }
            }
        }
        else
        {
            if (brush.activeSelf)
            {
                brush.SetActive(false);
            }
        }

        if (valuesChanged)
        {
            terrainChunkData = ChunkGenerator.Generate(values, terrainSize, surfaceLevel);
            CreateChunks();
        }
        else if (valuesChangedLastFrame)
        {
            ChunkGenerator.DestroyBuffers();
        }

        valuesChangedLastFrame = valuesChanged;
    }