//from Cubiquity class' ClickToDestroy. generate a cube to go flying:
void ExplodeVoxel(int xPos, int yPos, int zPos)
{
// Set up a material which we will apply to the cubes which we spawn to replace destroyed voxels.
if (diffuseMap != null)
{
List <string> keywords = new List <string> {
"DIFFUSE_TEXTURE_ON"
};
fakeVoxelMaterial.shaderKeywords = keywords.ToArray();
fakeVoxelMaterial.SetTexture("_DiffuseMap", diffuseMap);
}
fakeVoxelMaterial.SetTexture("_NormalMap", volume.GetComponent <ColoredCubesVolumeRenderer>().material.GetTexture("_NormalMap"));
fakeVoxelMaterial.SetFloat("_NoiseStrength", volume.GetComponent <ColoredCubesVolumeRenderer>().material.GetFloat("_NoiseStrength"));
// Get the current color of the voxel
QuantizedColor color = volume.data.GetVoxel(xPos, yPos, zPos);
// Check the alpha to determine whether the voxel is visible.
if (color.alpha > 127)
{
Vector3i voxel = new Vector3i(xPos, yPos, zPos);
if (IsSurfaceVoxel(xPos, yPos, zPos))
{
GameObject cube = GameObject.CreatePrimitive(PrimitiveType.Cube);
cube.AddComponent <Rigidbody>();
cube.transform.parent = volume.transform;
cube.transform.localPosition = new Vector3(xPos, yPos, zPos);
cube.transform.localRotation = Quaternion.identity;
cube.transform.localScale = new Vector3(0.9f, 0.9f, 0.9f);
cube.GetComponent <Renderer>().material = fakeVoxelMaterial;
cube.GetComponent <Renderer>().material.SetColor("_CubeColor", (Color32)color);
cube.GetComponent <Renderer>().material.SetVector("_CubePosition", new Vector4(xPos, yPos, zPos, 0.0f));
Vector3 explosionForce = cube.transform.position - new Vector3(xPos, yPos, zPos);
// These are basically random values found through experimentation.
// They just add a bit of twist as the cubes explode which looks nice
float xTorque = (xPos * 1436523.4f) % 56.0f;
float yTorque = (yPos * 56143.4f) % 43.0f;
float zTorque = (zPos * 22873.4f) % 38.0f;
Vector3 up = new Vector3(0.0f, 2.0f, 0.0f);
cube.GetComponent <Rigidbody>().AddTorque(xTorque, yTorque, zTorque);
cube.GetComponent <Rigidbody>().AddForce((explosionForce.normalized + up) * 100.0f);
// Cubes are just a temporary visual effect, and we delete them after a few seconds.
float lifeTime = Random.Range(8.0f, 12.0f);
Destroy(cube, lifeTime);
}
}
}
// Use this for initialization
void Start()
{
mapPosition = transform.position;
//get terrain
volume = GetComponent <ColoredCubesVolume>();
data = volume.data;
fakeVoxelMaterial = Resources.Load("Materials/FakeColoredCubes", typeof(Material)) as Material;
diffuseMap = volume.GetComponent <ColoredCubesVolumeRenderer>().material.GetTexture("_DiffuseMap");
}
void DestroyVoxels(int xPos, int yPos, int zPos, int range)
{
// Set up a material which we will apply to the cubes which we spawn to replace destroyed voxels.
Material fakeVoxelMaterial = Resources.Load("Materials/FakeColoredCubes", typeof(Material)) as Material;
Texture diffuseMap = coloredCubesVolume.GetComponent <ColoredCubesVolumeRenderer>().material.GetTexture("_DiffuseMap");
if (diffuseMap != null)
{
List <string> keywords = new List <string> {
"DIFFUSE_TEXTURE_ON"
};
fakeVoxelMaterial.shaderKeywords = keywords.ToArray();
fakeVoxelMaterial.SetTexture("_DiffuseMap", diffuseMap);
}
fakeVoxelMaterial.SetTexture("_NormalMap", coloredCubesVolume.GetComponent <ColoredCubesVolumeRenderer>().material.GetTexture("_NormalMap"));
fakeVoxelMaterial.SetFloat("_NoiseStrength", coloredCubesVolume.GetComponent <ColoredCubesVolumeRenderer>().material.GetFloat("_NoiseStrength"));
// Initialise outside the loop, but we'll use it later.
Vector3 pos = new Vector3(xPos, yPos, zPos);
int rangeSquared = range * range;
// Later on we will be deleting some voxels, but we'll also be looking at the neighbours of a voxel.
// This interaction can have some unexpected results, so it is best to first make a list of voxels we
// want to delete and then delete them later in a separate pass.
List <Vector3i> voxelsToDelete = new List <Vector3i>();
// Iterage over every voxel in a cubic region defined by the received position (the center) and
// the range. It is quite possible that this will be hundreds or even thousands of voxels.
for (int z = zPos - range; z < zPos + range; z++)
{
for (int y = yPos - range; y < yPos + range; y++)
{
for (int x = xPos - range; x < xPos + range; x++)
{
// Compute the distance from the current voxel to the center of our explosion.
int xDistance = x - xPos;
int yDistance = y - yPos;
int zDistance = z - zPos;
// Working with squared distances avoids costly square root operations.
int distSquared = xDistance * xDistance + yDistance * yDistance + zDistance * zDistance;
// We're iterating over a cubic region, but we want our explosion to be spherical. Therefore
// we only further consider voxels which are within the required range of our explosion center.
// The corners of the cubic region we are iterating over will fail the following test.
if (distSquared < rangeSquared)
{
// Get the current color of the voxel
QuantizedColor color = coloredCubesVolume.data.GetVoxel(x, y, z);
// Check the alpha to determine whether the voxel is visible.
if (color.alpha > 127)
{
Vector3i voxel = new Vector3i(x, y, z);
voxelsToDelete.Add(voxel);
if (IsSurfaceVoxel(x, y, z))
{
GameObject cube = GameObject.CreatePrimitive(PrimitiveType.Cube);
cube.AddComponent <Rigidbody>();
cube.transform.parent = coloredCubesVolume.transform;
cube.transform.localPosition = new Vector3(x, y, z);
cube.transform.localRotation = Quaternion.identity;
cube.transform.localScale = new Vector3(0.9f, 0.9f, 0.9f);
cube.GetComponent <Renderer>().material = fakeVoxelMaterial;
cube.GetComponent <Renderer>().material.SetColor("_CubeColor", (Color32)color);
cube.GetComponent <Renderer>().material.SetVector("_CubePosition", new Vector4(x, y, z, 0.0f));
Vector3 explosionForce = cube.transform.position - pos;
// These are basically random values found through experimentation.
// They just add a bit of twist as the cubes explode which looks nice
float xTorque = (x * 1436523.4f) % 56.0f;
float yTorque = (y * 56143.4f) % 43.0f;
float zTorque = (z * 22873.4f) % 38.0f;
Vector3 up = new Vector3(0.0f, 2.0f, 0.0f);
cube.GetComponent <Rigidbody>().AddTorque(xTorque, yTorque, zTorque);
cube.GetComponent <Rigidbody>().AddForce((explosionForce.normalized + up) * 100.0f);
// Cubes are just a temporary visual effect, and we delete them after a few seconds.
float lifeTime = Random.Range(8.0f, 12.0f);
Destroy(cube, lifeTime);
}
}
}
}
}
}
foreach (Vector3i voxel in voxelsToDelete) // Loop through List with foreach
{
coloredCubesVolume.data.SetVoxel(voxel.x, voxel.y, voxel.z, new QuantizedColor(0, 0, 0, 0));
}
}