private void DoInitRenderProperty()
{
var minPosX = float.MaxValue;
var minPosY = float.MaxValue;
var maxPosX = float.MinValue;
var maxPosY = float.MinValue;
var tileWidthInUnit = (float)mMapMeta.tileWidthInPixel / mRenderSetting.pixelsPreUnit;
var tileHeightInUnit = (float)mMapMeta.tileHeightInPixel / mRenderSetting.pixelsPreUnit;
mAllNeedRenderTileList = new List <ITU_RenderTileData>();
mLayerMeta.chunkList.ForEach(chunk =>
{
for (var index = 0; index < chunk.data.Length; index++)
{
var gid = chunk.data[index];
//为0的砖块则表示不需要渲染
if (gid == 0)
{
continue;
}
var renderTileData = new ITU_RenderTileData();
renderTileData.x = chunk.startX + index % chunk.width;
renderTileData.y = chunk.startY + (int)Mathf.Ceil(index / chunk.width);
ITU_TsxRootMeta _tilesetMeta;
ITU_TsxEachTileMeta _eachTileMeta;
ITU_Utils.GetTileMetaByGid(mMapMeta, gid, out _tilesetMeta, out _eachTileMeta);
_tilesetMeta.isUesdInRender = true;
renderTileData.tileMeta = _eachTileMeta;
mAllNeedRenderTileList.Add(renderTileData);
Vector2 nowPos;
ITU_MathUtils.TileTopCorner2World(renderTileData.x, renderTileData.y, tileWidthInUnit, tileHeightInUnit, mMapMeta.IsIsoStaggered(), out nowPos);
minPosX = Mathf.Min(minPosX, nowPos.x);
minPosY = Mathf.Min(minPosY, nowPos.y);
maxPosX = Mathf.Max(maxPosX, nowPos.x);
maxPosY = Mathf.Max(maxPosY, nowPos.y);
}
});
//左上和右下两个Bound是左边点向两边个扩充2.5个Tile,.5是为了让坐标点在中心. 2个Tile是增大Bound防止周围Tile未渲染
//因为后续渲染会检测空Tile,所以区间扩充大一些没有关系
mLeftTopCornerBound = new Vector2(minPosX - tileWidthInUnit * 2.5f, maxPosY + tileHeightInUnit * mRenderSetting.renderChunkSize * 2.5f);
mRightBottomCornerBound = new Vector2(maxPosX + tileWidthInUnit * 2.5f, minPosY - tileHeightInUnit * mRenderSetting.renderChunkSize * 2.5f);
//此值不准确,只是为了大概显示一下进度条,防止界面卡顿导致以为是死机
var xNum = Mathf.CeilToInt(Math.Abs(mRightBottomCornerBound.x - mLeftTopCornerBound.x) / (mRenderSetting.renderChunkSize * tileWidthInUnit));
var yNum = Mathf.CeilToInt(Math.Abs(mRightBottomCornerBound.y - mLeftTopCornerBound.y) / (mRenderSetting.renderChunkSize * tileHeightInUnit * 0.5f));
mMaxMayRenderChunkNum = (xNum + 4) * (yNum + 4);
}
private void DoPushTile(int _posX, int _posY, ITU_TsxEachTileMeta _tileMeta)
{
var tileWidthInUnit = (float)mMapMeta.tileWidthInPixel / mRenderSetting.pixelsPreUnit;
var tileHeighInUnit = (float)mMapMeta.tileHeightInPixel / mRenderSetting.pixelsPreUnit;
var halfTileWidthInUnit = tileWidthInUnit / 2;
var tilesetHeightInUnit = (float)_tileMeta.tileHeightInPixel / mRenderSetting.pixelsPreUnit;
Vector2 topCenterPos;
ITU_MathUtils.TileTopCorner2World(_posX, _posY, tileWidthInUnit, tileHeighInUnit,
mMapMeta.orientation == ITU_TmxRootMeta.ORIENTAION_STAGGERED, out topCenterPos);
var bottomCenterPos = new Vector2(topCenterPos.x, topCenterPos.y - tileHeighInUnit);
var v2 = new Vector3(bottomCenterPos.x - halfTileWidthInUnit, bottomCenterPos.y, 0);
var v1 = new Vector3(bottomCenterPos.x + halfTileWidthInUnit, bottomCenterPos.y + tilesetHeightInUnit, 0);
var v0 = new Vector3(v2.x, v1.y, 0);
var v3 = new Vector3(v1.x, v2.y, 0);
mVertices.Add(v0);
mUVList.Add(_tileMeta.uv_p0);
var indexV0 = mVertices.Count - 1;
mVertices.Add(v1);
mUVList.Add(_tileMeta.uv_p1);
var indexV1 = mVertices.Count - 1;
mVertices.Add(v2);
mUVList.Add(_tileMeta.uv_p2);
var indexV2 = mVertices.Count - 1;
mVertices.Add(v3);
mUVList.Add(_tileMeta.uv_p3);
var indexV3 = mVertices.Count - 1;
mTriangles.Add(indexV0);
mTriangles.Add(indexV1);
mTriangles.Add(indexV2);
mTriangles.Add(indexV2);
mTriangles.Add(indexV1);
mTriangles.Add(indexV3);
var tileIndex = new Vector2Int(_posX, _posY);
mAllExtensionList.ForEach(x => x.OnRenderTile(tileIndex, topCenterPos, tileWidthInUnit, tileHeighInUnit, mLayerMeta, _tileMeta));
}
public void HandleMapPropertyAndObject()
{
if (mMapMeta == null)
{
Debug.LogError("ITU_Facade not load any map, please call LoadTxmFile function first");
return;
}
//Begin
mAllExtensionList.ForEach(x =>
{
x.SetRenderSetting(mRenderSetting);
x.SetTmxMapMeta(mMapMeta);
x.HandleMapPropertyAndObjectBegin();
});
//Map
mAllExtensionList.ForEach(x =>
{
if (mMapMeta.property != null)
{
x.HandleMapProperty(mMapMeta.property);
}
});
//Layer
mAllExtensionList.ForEach(x =>
{
mMapMeta.layerList.ForEach(layer =>
{
if (layer.property != null)
{
x.HandleLayerProperty(layer, layer.property);
}
});
});
//Object
mAllExtensionList.ForEach(x => { mMapMeta.objectList.ForEach(x.HandleMapObject); });
var pixelsPreUnit = mRenderSetting != null ? mRenderSetting.pixelsPreUnit : 100;
var tileWidthInUnit = (float)mMapMeta.tileWidthInPixel / pixelsPreUnit;
var tileHeightInUnit = (float)mMapMeta.tileHeightInPixel / pixelsPreUnit;
//Tile
mAllExtensionList.ForEach(x =>
{
mMapMeta.layerList.ForEach(layer =>
{
layer.chunkList.ForEach(chunk =>
{
for (var index = 0; index < chunk.data.Length; index++)
{
var gid = chunk.data[index];
//为0的砖块则表示不需要渲染
if (gid == 0)
{
continue;
}
var tileMeta = ITU_Utils.GetTileMetaByGid(mMapMeta, gid);
if (tileMeta != null && !tileMeta.property.IsEmpty())
{
var tileX = chunk.startX + index % chunk.width;
var tileY = chunk.startY + (int)Mathf.Ceil(index / chunk.width);
Vector2 topPos;
ITU_MathUtils.TileTopCorner2World(tileX, tileY, tileWidthInUnit, tileHeightInUnit, mMapMeta.IsIsoStaggered(), out topPos);
x.HandelTileWithProperty(new Vector2Int(tileX, tileY), topPos, tileWidthInUnit, tileHeightInUnit, layer, tileMeta);
}
}
});
});
});
//Finish
mAllExtensionList.ForEach(x => { x.HandleMapPropertyAndObjectFinish(); });
}
private void DoRenderLayer()
{
//以最小点向左上移动两个Chunk大小区域为起点,逐行扫描每个Chunk,直到Chunk的TopTile 大于MaxTile为止
//这样进行Chunk渲染保证了正确的渲染顺序,右压左,下压上.(每个Chunk之内的Tile渲染也需要按此顺序)
var tileWidthInUnit = (float)mMapMeta.tileWidthInPixel / mRenderSetting.pixelsPreUnit;
var tileHeightInUnit = (float)mMapMeta.tileHeightInPixel / mRenderSetting.pixelsPreUnit;
var chunkIndex = 0;
var renderStep = mRenderSetting.renderChunkSize;
var isStaggered = mMapMeta.IsIsoStaggered();
Vector2Int startPos;
ITU_MathUtils.World2Tile(mLeftTopCornerBound.x, mLeftTopCornerBound.y, tileWidthInUnit, tileHeightInUnit, mMapMeta.IsIsoStaggered(), out startPos);
//IsometricMathUtils.GetNowTileLeftTopTileWithStep(startPos.x, startPos.y, renderStep * 2, isStaggered, out startPos);
var isTurnLeft = true;
var lineFistTile = startPos;
var nowPointTile = lineFistTile;
while (true)
{
//渲染一行
while (true)
{
//nowPointTile默认指向的是当前渲染Chunk的TopTile
//此Tile向左下方移动chunkSize大小则为当前Chunk的最左侧Tile
Vector2Int chunkMinLeftTile;
ITU_MathUtils.GetNowTileLeftBottomTileWithStep(nowPointTile.x, nowPointTile.y, renderStep, isStaggered, out chunkMinLeftTile);
Vector2 chunkCheckPos;
ITU_MathUtils.TileTopCorner2World(chunkMinLeftTile.x, chunkMinLeftTile.y, tileWidthInUnit, tileHeightInUnit, isStaggered, out chunkCheckPos);
//应该是上角点减去 tileWidthInUnit/2即可.此处只是为了容错.
if (chunkCheckPos.x - tileWidthInUnit > mRightBottomCornerBound.x)
{
break;
}
var isDrawChunk = TryToRenderChunk(nowPointTile, mRenderSetting.renderChunkSize, chunkIndex);
chunkIndex = isDrawChunk ? chunkIndex + 1 : chunkIndex;
ITU_MathUtils.GetNowTileRightTileWithStep(nowPointTile.x, nowPointTile.y, renderStep, isStaggered, out nowPointTile);
}
//移动到下一行
if (isTurnLeft)
{
ITU_MathUtils.GetNowTileLeftBottomTileWithStep(lineFistTile.x, lineFistTile.y, renderStep, isStaggered, out lineFistTile);
}
else
{
ITU_MathUtils.GetNowTileRightBottomTileWithStep(lineFistTile.x, lineFistTile.y, renderStep, isStaggered, out lineFistTile);
}
nowPointTile = lineFistTile;
isTurnLeft = !isTurnLeft;
Vector2 bottomCheckPos;
ITU_MathUtils.TileTopCorner2World(nowPointTile.x, nowPointTile.y, tileWidthInUnit, tileHeightInUnit, isStaggered, out bottomCheckPos);
//Unity坐标是反向的,所以要反向检测
if (bottomCheckPos.y < mRightBottomCornerBound.y)
{
break;
}
}
}