public void Draw()
{
try
{
Rectanglef logicViewRect;
Vector2 upLeft = BaseGame.CoordinMgr.LogicPos(new Vector2(screenViewRect.X, screenViewRect.Y));
Vector2 upRight = BaseGame.CoordinMgr.LogicPos(new Vector2(screenViewRect.X + screenViewRect.Width, screenViewRect.Y));
Vector2 downLeft = BaseGame.CoordinMgr.LogicPos(new Vector2(screenViewRect.X, screenViewRect.Y + screenViewRect.Height));
Vector2 downRight = BaseGame.CoordinMgr.LogicPos(new Vector2(screenViewRect.X + screenViewRect.Width, screenViewRect.Y + screenViewRect.Height));
logicViewRect = MathTools.BoundBox(upLeft, upRight, downLeft, downRight);
int minX, minY, maxX, maxY;
minX = Math.Max(0, (int)((logicViewRect.X - mapSize.X) / gridScale) - 1);
minY = Math.Max(0, (int)((logicViewRect.Y - mapSize.Y) / gridScale) - 1);
maxX = (int)((logicViewRect.X + logicViewRect.Width - mapSize.X) / gridScale) + 1;
maxY = (int)((logicViewRect.Y + logicViewRect.Height - mapSize.Y) / gridScale) + 1;
foreach (SpriteBatch batch in batches)
{
batch.Begin(SpriteBlendMode.AlphaBlend, SpriteSortMode.FrontToBack, SaveStateMode.None);
}
float gridWidthInScrn = BaseGame.CoordinMgr.ScrnLengthf(gridScale);
float gridHeightInScrn = BaseGame.CoordinMgr.ScrnLengthf(gridScale);
Vector2 startPosInScrn = BaseGame.CoordinMgr.ScreenPos(new Vector2(minX * gridScale + mapSize.X, minY * gridScale + mapSize.Y));
Vector2 UnitX = Vector2.Transform(new Vector2(gridWidthInScrn, 0), BaseGame.CoordinMgr.RotaMatrixFromLogicToScrn);
Vector2 UnitY = Vector2.Transform(new Vector2(0, gridHeightInScrn), BaseGame.CoordinMgr.RotaMatrixFromLogicToScrn);
float drawScale = gridWidthInScrn / sourceWidth;
for (int y = minY; y <= maxY && y < gridHeightSum && y >= 0; y++)
{
for (int x = minX; x <= maxX && x < gridWidthSum && x >= 0; x++)
{
Vector2 drawPos = startPosInScrn + (x - minX) * UnitX + (y - minY) * UnitY;
foreach (gridData data in gridTexData[x + gridWidthSum * y])
{
batches[data.texIndex].Draw(TexList[data.texIndex], drawPos, data.sourceRect, Color.White, -BaseGame.CoordinMgr.Rota, new Vector2(0, 0), drawScale, SpriteEffects.None, 1f);
}
}
}
foreach (SpriteBatch batch in batches)
{
batch.End();
}
}
catch (Exception)
{
CreateSpriteBatches();
}
}
