public static void BuildForChunk(tk2dTileMap tileMap, SpriteChunk chunk, ColorChunk colorChunk, bool useColor, bool skipPrefabs, int baseX, int baseY)
{
List <Vector3> meshVertices = new List <Vector3>();
List <Color> meshColors = new List <Color>();
List <Vector2> meshUvs = new List <Vector2>();
List <Vector2> meshUv2s = new List <Vector2>();
//List<int> meshIndices = new List<int>();
int[] spriteIds = chunk.spriteIds;
Vector3 tileSize = tileMap.data.tileSize;
int spriteCount = tileMap.SpriteCollectionInst.spriteDefinitions.Length;
Object[] tilePrefabs = tileMap.data.tilePrefabs;
tk2dSpriteDefinition firstSprite = tileMap.SpriteCollectionInst.FirstValidDefinition;
bool buildNormals = (firstSprite != null && firstSprite.normals != null && firstSprite.normals.Length > 0);
bool generateUv2 = tileMap.data.generateUv2;
var colorMode = tileMap.data.colorMode;
Color32 clearColor = (useColor && tileMap.ColorChannel != null)?tileMap.ColorChannel.clearColor:Color.white;
// revert to no color mode (i.e. fill with clear color) when there isn't a color channel, or it is empty
if (colorChunk == null || colorChunk.colors.Length == 0)
{
useColor = false;
}
int x0, x1, dx;
int y0, y1, dy;
BuilderUtil.GetLoopOrder(tileMap.data.sortMethod,
tileMap.partitionSizeX, tileMap.partitionSizeY,
out x0, out x1, out dx,
out y0, out y1, out dy);
float xOffsetMult = 0.0f, yOffsetMult = 0.0f;
tileMap.data.GetTileOffset(out xOffsetMult, out yOffsetMult);
List <int>[] meshIndices = new List <int> [tileMap.SpriteCollectionInst.materials.Length];
for (int j = 0; j < meshIndices.Length; ++j)
{
meshIndices[j] = new List <int>();
}
int colorChunkSize = tileMap.partitionSizeX + 1;
for (int y = y0; y != y1; y += dy)
{
float xOffset = ((baseY + y) & 1) * xOffsetMult;
for (int x = x0; x != x1; x += dx)
{
int spriteId = spriteIds[y * tileMap.partitionSizeX + x];
int tile = BuilderUtil.GetTileFromRawTile(spriteId);
bool flipH = BuilderUtil.IsRawTileFlagSet(spriteId, tk2dTileFlags.FlipX);
bool flipV = BuilderUtil.IsRawTileFlagSet(spriteId, tk2dTileFlags.FlipY);
bool rot90 = BuilderUtil.IsRawTileFlagSet(spriteId, tk2dTileFlags.Rot90);
Vector3 currentPos = new Vector3(tileSize.x * (x + xOffset), tileSize.y * y, 0);
if (tile < 0 || tile >= spriteCount)
{
continue;
}
if (skipPrefabs && tilePrefabs[tile])
{
continue;
}
var sprite = tileMap.SpriteCollectionInst.spriteDefinitions[tile];
int baseVertex = meshVertices.Count;
for (int v = 0; v < sprite.positions.Length; ++v)
{
Vector3 flippedPos = BuilderUtil.ApplySpriteVertexTileFlags(tileMap, sprite, sprite.positions[v], flipH, flipV, rot90);
if (useColor && colorChunk != null)
{
Color tileColorx0y0 = colorChunk.colors[y * colorChunkSize + x];
Color tileColorx1y0 = colorChunk.colors[y * colorChunkSize + x + 1];
Color tileColorx0y1 = colorChunk.colors[(y + 1) * colorChunkSize + x];
Color tileColorx1y1 = colorChunk.colors[(y + 1) * colorChunkSize + (x + 1)];
switch (colorMode)
{
case tk2dTileMapData.ColorMode.Interpolate:
{
Vector3 centeredSpriteVertex = flippedPos - sprite.untrimmedBoundsData[0];
Vector3 alignedSpriteVertex = centeredSpriteVertex + tileMap.data.tileSize * 0.5f;
float tileColorX = Mathf.Clamp01(alignedSpriteVertex.x / tileMap.data.tileSize.x);
float tileColorY = Mathf.Clamp01(alignedSpriteVertex.y / tileMap.data.tileSize.y);
Color color = Color.Lerp(
Color.Lerp(tileColorx0y0, tileColorx1y0, tileColorX),
Color.Lerp(tileColorx0y1, tileColorx1y1, tileColorX),
tileColorY);
meshColors.Add(color);
break;
}
case tk2dTileMapData.ColorMode.Solid:
{
meshColors.Add(tileColorx0y0);
break;
}
}
}
else
{
meshColors.Add(clearColor);
}
if (generateUv2)
{
if (sprite.normalizedUvs.Length == 0)
{
meshUv2s.Add(Vector2.zero);
}
else
{
meshUv2s.Add(sprite.normalizedUvs[v]);
}
}
meshVertices.Add(currentPos + flippedPos);
meshUvs.Add(sprite.uvs[v]);
}
bool reverseIndices = false; // flipped?
if (flipH)
{
reverseIndices = !reverseIndices;
}
if (flipV)
{
reverseIndices = !reverseIndices;
}
List <int> indices = meshIndices[sprite.materialId];
for (int i = 0; i < sprite.indices.Length; ++i)
{
int j = reverseIndices ? (sprite.indices.Length - 1 - i) : i;
indices.Add(baseVertex + sprite.indices[j]);
}
}
}
if (chunk.mesh == null)
{
chunk.mesh = tk2dUtil.CreateMesh();
}
chunk.mesh.Clear();
chunk.mesh.vertices = meshVertices.ToArray();
chunk.mesh.uv = meshUvs.ToArray();
if (generateUv2)
{
chunk.mesh.uv2 = meshUv2s.ToArray();
}
chunk.mesh.colors = meshColors.ToArray();
List <Material> materials = new List <Material>();
int materialId = 0;
int subMeshCount = 0;
foreach (var indices in meshIndices)
{
if (indices.Count > 0)
{
materials.Add(tileMap.SpriteCollectionInst.materialInsts[materialId]);
subMeshCount++;
}
materialId++;
}
if (subMeshCount > 0)
{
chunk.mesh.subMeshCount = subMeshCount;
chunk.gameObject.GetComponent <Renderer>().materials = materials.ToArray();
int subMeshId = 0;
foreach (var indices in meshIndices)
{
if (indices.Count > 0)
{
chunk.mesh.SetTriangles(indices.ToArray(), subMeshId);
subMeshId++;
}
}
}
chunk.mesh.RecalculateBounds();
if (buildNormals)
{
chunk.mesh.RecalculateNormals();
}
var meshFilter = chunk.gameObject.GetComponent <MeshFilter>();
meshFilter.sharedMesh = chunk.mesh;
}
// Builds an unoptimized mesh for this chunk
static void BuildLocalMeshForChunk(tk2dTileMap tileMap, SpriteChunk chunk, int baseX, int baseY, ref Vector2[] vertices, ref int[] indices)
{
List <Vector2> verts = new List <Vector2>();
List <int> inds = new List <int>();
Vector2[] boxPos = new Vector2[4]; // used for box collider
int[] boxInds = { 0, 1, 1, 2, 2, 3, 3, 0 };
int[] boxIndsFlipped = { 0, 3, 3, 2, 2, 1, 1, 0 };
int spriteCount = tileMap.SpriteCollectionInst.spriteDefinitions.Length;
Vector2 tileSize = new Vector3(tileMap.data.tileSize.x, tileMap.data.tileSize.y);
var tilePrefabs = tileMap.data.tilePrefabs;
float xOffsetMult = 0.0f, yOffsetMult = 0.0f;
tileMap.data.GetTileOffset(out xOffsetMult, out yOffsetMult);
var chunkData = chunk.spriteIds;
for (int y = 0; y < tileMap.partitionSizeY; ++y)
{
float xOffset = ((baseY + y) & 1) * xOffsetMult;
for (int x = 0; x < tileMap.partitionSizeX; ++x)
{
int spriteId = chunkData[y * tileMap.partitionSizeX + x];
int spriteIdx = BuilderUtil.GetTileFromRawTile(spriteId);
Vector2 currentPos = new Vector2(tileSize.x * (x + xOffset), tileSize.y * y);
if (spriteIdx < 0 || spriteIdx >= spriteCount)
{
continue;
}
if (tilePrefabs[spriteIdx])
{
continue;
}
bool flipH = BuilderUtil.IsRawTileFlagSet(spriteId, tk2dTileFlags.FlipX);
bool flipV = BuilderUtil.IsRawTileFlagSet(spriteId, tk2dTileFlags.FlipY);
bool rot90 = BuilderUtil.IsRawTileFlagSet(spriteId, tk2dTileFlags.Rot90);
bool reverseIndices = false;
if (flipH)
{
reverseIndices = !reverseIndices;
}
if (flipV)
{
reverseIndices = !reverseIndices;
}
tk2dSpriteDefinition spriteData = tileMap.SpriteCollectionInst.spriteDefinitions[spriteIdx];
int baseVertexIndex = verts.Count;
if (spriteData.colliderType == tk2dSpriteDefinition.ColliderType.Box)
{
Vector3 origin = spriteData.colliderVertices[0];
Vector3 extents = spriteData.colliderVertices[1];
Vector3 min = origin - extents;
Vector3 max = origin + extents;
boxPos[0] = new Vector2(min.x, min.y);
boxPos[1] = new Vector2(max.x, min.y);
boxPos[2] = new Vector2(max.x, max.y);
boxPos[3] = new Vector2(min.x, max.y);
for (int i = 0; i < 4; ++i)
{
verts.Add(BuilderUtil.ApplySpriteVertexTileFlags(tileMap, spriteData, boxPos[i], flipH, flipV, rot90) + currentPos);
}
int[] boxIndices = reverseIndices ? boxIndsFlipped : boxInds;
for (int i = 0; i < 8; ++i)
{
inds.Add(baseVertexIndex + boxIndices[i]);
}
}
else if (spriteData.colliderType == tk2dSpriteDefinition.ColliderType.Mesh)
{
foreach (tk2dCollider2DData dat in spriteData.edgeCollider2D)
{
baseVertexIndex = verts.Count;
foreach (Vector2 pos in dat.points)
{
verts.Add(BuilderUtil.ApplySpriteVertexTileFlags(tileMap, spriteData, pos, flipH, flipV, rot90) + currentPos);
}
int numVerts = dat.points.Length;
if (reverseIndices)
{
for (int i = numVerts - 1; i > 0; --i)
{
inds.Add(baseVertexIndex + i);
inds.Add(baseVertexIndex + i - 1);
}
}
else
{
for (int i = 0; i < numVerts - 1; ++i)
{
inds.Add(baseVertexIndex + i);
inds.Add(baseVertexIndex + i + 1);
}
}
}
foreach (tk2dCollider2DData dat in spriteData.polygonCollider2D)
{
baseVertexIndex = verts.Count;
foreach (Vector2 pos in dat.points)
{
verts.Add(BuilderUtil.ApplySpriteVertexTileFlags(tileMap, spriteData, pos, flipH, flipV, rot90) + currentPos);
}
int numVerts = dat.points.Length;
if (reverseIndices)
{
for (int i = numVerts; i > 0; --i)
{
inds.Add(baseVertexIndex + (i % numVerts));
inds.Add(baseVertexIndex + i - 1);
}
}
else
{
for (int i = 0; i < numVerts; ++i)
{
inds.Add(baseVertexIndex + i);
inds.Add(baseVertexIndex + (i + 1) % numVerts);
}
}
}
}
}
}
vertices = verts.ToArray();
indices = inds.ToArray();
}
// Builds an unoptimized mesh for this chunk
static void BuildLocalMeshForChunk(tk2dTileMap tileMap, SpriteChunk chunk, int baseX, int baseY, ref Vector3[] vertices, ref int[] indices)
{
List <Vector3> vertexList = new List <Vector3>();
List <int> indexList = new List <int>();
int spriteCount = tileMap.SpriteCollectionInst.spriteDefinitions.Length;
Vector3 tileSize = tileMap.data.tileSize;
var tilePrefabs = tileMap.data.tilePrefabs;
float xOffsetMult = 0.0f, yOffsetMult = 0.0f;
tileMap.data.GetTileOffset(out xOffsetMult, out yOffsetMult);
var chunkData = chunk.spriteIds;
for (int y = 0; y < tileMap.partitionSizeY; ++y)
{
float xOffset = ((baseY + y) & 1) * xOffsetMult;
for (int x = 0; x < tileMap.partitionSizeX; ++x)
{
int spriteId = chunkData[y * tileMap.partitionSizeX + x];
int spriteIdx = BuilderUtil.GetTileFromRawTile(spriteId);
Vector3 currentPos = new Vector3(tileSize.x * (x + xOffset), tileSize.y * y, 0);
if (spriteIdx < 0 || spriteIdx >= spriteCount)
{
continue;
}
if (tilePrefabs[spriteIdx])
{
continue;
}
bool flipH = BuilderUtil.IsRawTileFlagSet(spriteId, tk2dTileFlags.FlipX);
bool flipV = BuilderUtil.IsRawTileFlagSet(spriteId, tk2dTileFlags.FlipY);
bool rot90 = BuilderUtil.IsRawTileFlagSet(spriteId, tk2dTileFlags.Rot90);
bool reverseIndices = false;
if (flipH)
{
reverseIndices = !reverseIndices;
}
if (flipV)
{
reverseIndices = !reverseIndices;
}
var spriteData = tileMap.SpriteCollectionInst.spriteDefinitions[spriteIdx];
int baseVertexIndex = vertexList.Count;
if (spriteData.colliderType == tk2dSpriteDefinition.ColliderType.Box)
{
Vector3 origin = spriteData.colliderVertices[0];
Vector3 extents = spriteData.colliderVertices[1];
Vector3 min = origin - extents;
Vector3 max = origin + extents;
Vector3[] pos = new Vector3[8];
pos[0] = new Vector3(min.x, min.y, min.z);
pos[1] = new Vector3(min.x, min.y, max.z);
pos[2] = new Vector3(max.x, min.y, min.z);
pos[3] = new Vector3(max.x, min.y, max.z);
pos[4] = new Vector3(min.x, max.y, min.z);
pos[5] = new Vector3(min.x, max.y, max.z);
pos[6] = new Vector3(max.x, max.y, min.z);
pos[7] = new Vector3(max.x, max.y, max.z);
for (int i = 0; i < 8; ++i)
{
Vector3 flippedPos = BuilderUtil.ApplySpriteVertexTileFlags(tileMap, spriteData, pos[i], flipH, flipV, rot90);
vertexList.Add(flippedPos + currentPos);
}
// int[] indicesBack = { 0, 1, 2, 2, 1, 3, 6, 5, 4, 7, 5, 6, 3, 7, 6, 2, 3, 6, 4, 5, 1, 4, 1, 0 };
int[] indicesFwd = { 2, 1, 0, 3, 1, 2, 4, 5, 6, 6, 5, 7, 6, 7, 3, 6, 3, 2, 1, 5, 4, 0, 1, 4 };
var srcIndices = indicesFwd;
for (int i = 0; i < srcIndices.Length; ++i)
{
int j = reverseIndices ? (srcIndices.Length - 1 - i) : i;
indexList.Add(baseVertexIndex + srcIndices[j]);
}
}
else if (spriteData.colliderType == tk2dSpriteDefinition.ColliderType.Mesh)
{
for (int i = 0; i < spriteData.colliderVertices.Length; ++i)
{
Vector3 flippedPos = BuilderUtil.ApplySpriteVertexTileFlags(tileMap, spriteData, spriteData.colliderVertices[i], flipH, flipV, rot90);
vertexList.Add(flippedPos + currentPos);
}
var srcIndices = spriteData.colliderIndicesFwd;
for (int i = 0; i < srcIndices.Length; ++i)
{
int j = reverseIndices ? (srcIndices.Length - 1 - i) : i;
indexList.Add(baseVertexIndex + srcIndices[j]);
}
}
}
}
vertices = vertexList.ToArray();
indices = indexList.ToArray();
}
public static void BuildPolygonCollidersForChunk(tk2dTileMap tileMap, SpriteChunk chunk, int baseX, int baseY)
{
// Clear colliders
EdgeCollider2D[] edgeColliders = chunk.gameObject.GetComponents <EdgeCollider2D>();
foreach (var ec in edgeColliders)
{
tk2dUtil.DestroyImmediate(ec);
}
chunk.edgeColliders.Clear();
PolygonCollider2D[] polyColliders = chunk.gameObject.GetComponents <PolygonCollider2D>();
foreach (var pc in polyColliders)
{
tk2dUtil.DestroyImmediate(pc);
}
Vector2[] boxPos = new Vector2[4]; // used for box collider
List <List <Vector2> > paths = new List <List <Vector2> >();
int spriteCount = tileMap.SpriteCollectionInst.spriteDefinitions.Length;
Vector2 tileSize = new Vector3(tileMap.data.tileSize.x, tileMap.data.tileSize.y);
var tilePrefabs = tileMap.data.tilePrefabs;
float xOffsetMult = 0.0f, yOffsetMult = 0.0f;
tileMap.data.GetTileOffset(out xOffsetMult, out yOffsetMult);
List <Vector2> cachedPoints = new List <Vector2>();
var chunkData = chunk.spriteIds;
for (int y = 0; y < tileMap.partitionSizeY; ++y)
{
float xOffset = ((baseY + y) & 1) * xOffsetMult;
for (int x = 0; x < tileMap.partitionSizeX; ++x)
{
int spriteId = chunkData[y * tileMap.partitionSizeX + x];
int spriteIdx = BuilderUtil.GetTileFromRawTile(spriteId);
Vector2 currentPos = new Vector2(tileSize.x * (x + xOffset), tileSize.y * y);
if (spriteIdx < 0 || spriteIdx >= spriteCount)
{
continue;
}
if (tilePrefabs[spriteIdx])
{
continue;
}
bool flipH = BuilderUtil.IsRawTileFlagSet(spriteId, tk2dTileFlags.FlipX);
bool flipV = BuilderUtil.IsRawTileFlagSet(spriteId, tk2dTileFlags.FlipY);
bool rot90 = BuilderUtil.IsRawTileFlagSet(spriteId, tk2dTileFlags.Rot90);
bool reverseIndices = false;
if (flipH)
{
reverseIndices = !reverseIndices;
}
if (flipV)
{
reverseIndices = !reverseIndices;
}
tk2dSpriteDefinition spriteData = tileMap.SpriteCollectionInst.spriteDefinitions[spriteIdx];
if (spriteData.colliderType == tk2dSpriteDefinition.ColliderType.Box)
{
Vector3 origin = spriteData.colliderVertices[0];
Vector3 extents = spriteData.colliderVertices[1];
Vector3 min = origin - extents;
Vector3 max = origin + extents;
boxPos[0] = new Vector2(min.x, min.y);
boxPos[1] = new Vector2(max.x, min.y);
boxPos[2] = new Vector2(max.x, max.y);
boxPos[3] = new Vector2(min.x, max.y);
List <Vector2> thisList = new List <Vector2>();
int start = reverseIndices ? 3 : 0;
int end = reverseIndices ? -1 : 4;
int inc = reverseIndices ? -1 : 1;
for (int i = start; i != end; i += inc)
{
thisList.Add(BuilderUtil.ApplySpriteVertexTileFlags(tileMap, spriteData, boxPos[i], flipH, flipV, rot90) + currentPos);
}
paths.Add(thisList);
}
else if (spriteData.colliderType == tk2dSpriteDefinition.ColliderType.Mesh)
{
cachedPoints.Clear();
List <Vector2> points = new List <Vector2>();
foreach (tk2dCollider2DData dat in spriteData.polygonCollider2D)
{
foreach (Vector2 pos in dat.points)
{
cachedPoints.Add(BuilderUtil.ApplySpriteVertexTileFlags(tileMap, spriteData, pos, flipH, flipV, rot90) + currentPos);
}
int numVerts = dat.points.Length;
if (reverseIndices)
{
for (int i = cachedPoints.Count - 1; i >= 0; --i)
{
points.Add(cachedPoints[i]);
}
}
else
{
for (int i = 0; i < numVerts; ++i)
{
points.Add(cachedPoints[i]);
}
}
}
paths.Add(points);
}
}
}
int numPathsPerObject = 64;
int startPath = 0;
int pathsRemaining = paths.Count;
while (pathsRemaining > 0)
{
int pathsThisRound = Mathf.Min(numPathsPerObject, pathsRemaining);
PolygonCollider2D newPc = chunk.gameObject.AddComponent <PolygonCollider2D>();
newPc.pathCount = pathsThisRound;
for (int i = 0; i < pathsThisRound; ++i)
{
newPc.SetPath(i, paths[startPath + i].ToArray());
}
startPath += pathsThisRound;
pathsRemaining -= pathsThisRound;
}
}