public Mesh CreateColliderMesh()
{
// We use the currentLayer ID to order them on the Z axis.
// Be aware that on the collider mesh it depends on the freezeColliderLayers
// variable, this way you can avoid having colliders on different z axis.
int currentLayerID = 0;
// UsedVertices is used to maintain a count of the vertices between
// layers so when you call renderTriangles, it nows where to start.
int usedVertices = 0;
TileSet tileset = null;
List<Vector3> vertices = new List<Vector3> ();
List<int> triangles = new List<int> ();
Mesh mesh = new Mesh ();
XmlDocument xmldoc = new XmlDocument ();
xmldoc.Load (new StringReader (tilemap.text));
XmlNodeList nodelist = xmldoc.DocumentElement.ChildNodes;
// Works the almost the same way as the createMesh method (builds the
// tileset and layer objects, then builds the mesh with those
// but only checks on the collision names plus it doesn't build model
// uv since its not neccesary.
foreach (XmlNode outerNode in nodelist) {
switch (outerNode.Name) {
case "tileset":
if (outerNode.Attributes ["name"].InnerText.IndexOf ("Collision") != -1) {
XmlNode imageNode = outerNode.SelectSingleNode ("image");
int firstGID = int.Parse (outerNode.Attributes ["firstgid"].InnerText);
int width = int.Parse (outerNode.Attributes ["tilewidth"].InnerText);
int height = int.Parse (outerNode.Attributes ["tileheight"].InnerText);
int imageWidth = int.Parse (imageNode.Attributes ["width"].InnerText);
int imageheight = int.Parse (imageNode.Attributes ["height"].InnerText);
tileset = new TileSet (firstGID, width, height, imageWidth, imageheight);
// On the TMX editor, we set some attributes on our collider tiles so when parsing the
// tileset, we'll be adding them to our tileset object.
foreach (XmlNode innerNode in outerNode.ChildNodes) {
if (innerNode.Name == "tile") {
int tileID = 0;
if (int.TryParse (innerNode.Attributes ["id"].InnerText, out tileID)) {
XmlNode propertyNodes = innerNode.SelectSingleNode ("properties");
foreach (XmlNode propertyNode in propertyNodes) {
if (propertyNode.Attributes ["name"].InnerText == "col") {
tileset.AddCollision (tileID, propertyNode.Attributes ["value"].InnerText);
}
}
}
}
}
}
break;
case "layer":
if (outerNode.Attributes ["name"].InnerText.IndexOf ("collision_") != -1) {
XmlNode dataNode = outerNode.SelectSingleNode ("data");
int layerWidth = int.Parse (outerNode.Attributes ["width"].InnerText);
int layerHeight = int.Parse (outerNode.Attributes ["height"].InnerText);
string csvData = dataNode.InnerText;
Layer currentLayer = new Layer (tileset, csvData, currentLayerID, layerWidth, layerHeight);
vertices.AddRange (currentLayer.renderColVertices ());
triangles.AddRange (currentLayer.renderTriangles (usedVertices, usedVertices + currentLayer.vertexCount));
usedVertices += currentLayer.vertexCount;
// In case we freeze the layers on collider they wont move on the z axis.
}
if (!freezeLayersOnCollider)
currentLayerID++;
break;
case "objectgroup":
if (outerNode.Attributes ["name"].InnerText.IndexOf ("CollisionObjects") != -1) {
foreach (XmlNode objectNode in outerNode.ChildNodes) {
int colliderWidth = 0;
int colliderHeight = 0;
if (objectNode.Attributes.GetNamedItem ("width") != null) {
colliderWidth = int.Parse (objectNode.Attributes ["width"].InnerText);
colliderHeight = int.Parse (objectNode.Attributes ["height"].InnerText);
}
int colliderX = int.Parse (objectNode.Attributes ["x"].InnerText);
int colliderY = int.Parse (objectNode.Attributes ["y"].InnerText);
colliderX += (colliderWidth / 2 + 16);
colliderY = - (colliderY + colliderHeight / 2);
GameObject newCollider = null;
if (objectNode.HasChildNodes) {
// Can be polyline, ellipse or polygon, as boxes have no child.
string objectType = objectNode.FirstChild.Name;
Debug.Log ("Has children: " + objectType);
switch (objectType) {
case "ellipse":
newCollider = CreateEllipseCollider (colliderX, colliderY, colliderWidth, colliderHeight);
break;
case "polyline":
XmlNode polylineData = objectNode.FirstChild;
newCollider = CreatePolylineCollider (polylineData, colliderX, colliderY);
break;
case "polygon":
default:
break;
}
} else {
// Box
newCollider = CreateBoxCollider (colliderX, colliderY, colliderWidth, colliderHeight);
}
if (newCollider != null) {
if (transform.FindChild ("Colliders") == null) {
GameObject colliderContainer = new GameObject ("Colliders");
colliderContainer.transform.parent = gameObject.transform;
}
newCollider.transform.parent = transform.FindChild ("Colliders").transform;
}
}
}
break;
}
}
mesh.vertices = vertices.ToArray ();
mesh.triangles = triangles.ToArray ();
return mesh;
}
public Mesh CreateColliderMesh()
{
// We use the currentLayer ID to order them on the Z axis.
// Be aware that on the collider mesh it depends on the freezeColliderLayers
// variable, this way you can avoid having colliders on different z axis.
int currentLayerID = 0;
// UsedVertices is used to maintain a count of the vertices between
// layers so when you call renderTriangles, it nows where to start.
int usedVertices = 0;
TileSet tileset = null;
List <Vector3> vertices = new List <Vector3> ();
List <int> triangles = new List <int> ();
Mesh mesh = new Mesh();
XmlDocument xmldoc = new XmlDocument();
xmldoc.Load(new StringReader(tilemap.text));
XmlNodeList nodelist = xmldoc.DocumentElement.ChildNodes;
// Works the almost the same way as the createMesh method (builds the
// tileset and layer objects, then builds the mesh with those
// but only checks on the collision names plus it doesn't build model
// uv since its not neccesary.
foreach (XmlNode outerNode in nodelist)
{
switch (outerNode.Name)
{
case "tileset":
if (outerNode.Attributes ["name"].InnerText.IndexOf("Collision") != -1)
{
XmlNode imageNode = outerNode.SelectSingleNode("image");
int firstGID = int.Parse(outerNode.Attributes ["firstgid"].InnerText);
int width = int.Parse(outerNode.Attributes ["tilewidth"].InnerText);
int height = int.Parse(outerNode.Attributes ["tileheight"].InnerText);
int imageWidth = int.Parse(imageNode.Attributes ["width"].InnerText);
int imageheight = int.Parse(imageNode.Attributes ["height"].InnerText);
tileset = new TileSet(firstGID, width, height, imageWidth, imageheight);
// On the TMX editor, we set some attributes on our collider tiles so when parsing the
// tileset, we'll be adding them to our tileset object.
foreach (XmlNode innerNode in outerNode.ChildNodes)
{
if (innerNode.Name == "tile")
{
int tileID = 0;
if (int.TryParse(innerNode.Attributes ["id"].InnerText, out tileID))
{
XmlNode propertyNodes = innerNode.SelectSingleNode("properties");
foreach (XmlNode propertyNode in propertyNodes)
{
if (propertyNode.Attributes ["name"].InnerText == "col")
{
tileset.AddCollision(tileID, propertyNode.Attributes ["value"].InnerText);
}
}
}
}
}
}
break;
case "layer":
if (outerNode.Attributes ["name"].InnerText.IndexOf("collision_") != -1)
{
XmlNode dataNode = outerNode.SelectSingleNode("data");
int layerWidth = int.Parse(outerNode.Attributes ["width"].InnerText);
int layerHeight = int.Parse(outerNode.Attributes ["height"].InnerText);
string csvData = dataNode.InnerText;
Layer currentLayer = new Layer(tileset, csvData, currentLayerID, layerWidth, layerHeight);
vertices.AddRange(currentLayer.renderColVertices());
triangles.AddRange(currentLayer.renderTriangles(usedVertices, usedVertices + currentLayer.vertexCount));
usedVertices += currentLayer.vertexCount;
// In case we freeze the layers on collider they wont move on the z axis.
}
if (!freezeLayersOnCollider)
{
currentLayerID++;
}
break;
case "objectgroup":
if (outerNode.Attributes ["name"].InnerText.IndexOf("CollisionObjects") != -1)
{
foreach (XmlNode objectNode in outerNode.ChildNodes)
{
int colliderWidth = 0;
int colliderHeight = 0;
if (objectNode.Attributes.GetNamedItem("width") != null)
{
colliderWidth = int.Parse(objectNode.Attributes ["width"].InnerText);
colliderHeight = int.Parse(objectNode.Attributes ["height"].InnerText);
}
int colliderX = int.Parse(objectNode.Attributes ["x"].InnerText);
int colliderY = int.Parse(objectNode.Attributes ["y"].InnerText);
colliderX += (colliderWidth / 2 + 16);
colliderY = -(colliderY + colliderHeight / 2);
GameObject newCollider = null;
if (objectNode.HasChildNodes)
{
// Can be polyline, ellipse or polygon, as boxes have no child.
string objectType = objectNode.FirstChild.Name;
Debug.Log("Has children: " + objectType);
switch (objectType)
{
case "ellipse":
newCollider = CreateEllipseCollider(colliderX, colliderY, colliderWidth, colliderHeight);
break;
case "polyline":
XmlNode polylineData = objectNode.FirstChild;
newCollider = CreatePolylineCollider(polylineData, colliderX, colliderY);
break;
case "polygon":
default:
break;
}
}
else
{
// Box
newCollider = CreateBoxCollider(colliderX, colliderY, colliderWidth, colliderHeight);
}
if (newCollider != null)
{
if (transform.FindChild("Colliders") == null)
{
GameObject colliderContainer = new GameObject("Colliders");
colliderContainer.transform.parent = gameObject.transform;
}
newCollider.transform.parent = transform.FindChild("Colliders").transform;
}
}
}
break;
}
}
mesh.vertices = vertices.ToArray();
mesh.triangles = triangles.ToArray();
return(mesh);
}
