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Account for terrain height in Viewport.

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This commit is contained in:
Paul Chote
2014-11-01 18:58:16 +13:00
parent 6527ab21d7
commit 18f65552a1
1 changed files with 17 additions and 8 deletions
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25
OpenRA.Game/Graphics/Viewport.cs
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@@ -39,6 +39,8 @@ namespace OpenRA.Graphics
// Map bounds (world-px)
readonly Rectangle mapBounds;
readonly int maxGroundHeight;
// Viewport geometry (world-px)
public int2 CenterLocation { get; private set; }
@@ -96,6 +98,7 @@ namespace OpenRA.Graphics
var br = wr.ScreenPxPosition(map.CenterOfCell(Map.MapToCell(map.TileShape, new CPos(b.Right, b.Bottom))) + new WVec(511, 511, 0));
mapBounds = Rectangle.FromLTRB(tl.X, tl.Y, br.X, br.Y);
maxGroundHeight = wr.world.TileSet.MaxGroundHeight;
CenterLocation = (tl + br) / 2;
Zoom = Game.Settings.Graphics.PixelDouble ? 2 : 1;
}
@@ -144,8 +147,8 @@ namespace OpenRA.Graphics
var cbr = map.CenterOfCell(VisibleCells.BottomRight) + new WVec(512, 512, 0);
// Convert to screen coordinates
var tl = WorldToViewPx(worldRenderer.ScreenPxPosition(ctl)).Clamp(ScreenClip);
var br = WorldToViewPx(worldRenderer.ScreenPxPosition(cbr)).Clamp(ScreenClip);
var tl = WorldToViewPx(worldRenderer.ScreenPxPosition(ctl - new WVec(0, 0, ctl.Z))).Clamp(ScreenClip);
var br = WorldToViewPx(worldRenderer.ScreenPxPosition(cbr - new WVec(0, 0, cbr.Z))).Clamp(ScreenClip);
return Rectangle.FromLTRB(tl.X, tl.Y, br.X, br.Y);
}
}
@@ -156,14 +159,20 @@ namespace OpenRA.Graphics
{
if (cellsDirty)
{
// Visible rectangle in map coordinates
var map = worldRenderer.world.Map;
var ctl = Map.CellToMap(map.TileShape, map.CellContaining(worldRenderer.Position(TopLeft)));
var cbr = Map.CellToMap(map.TileShape, map.CellContaining(worldRenderer.Position(BottomRight)));
var wtl = worldRenderer.Position(TopLeft);
var wbr = worldRenderer.Position(BottomRight);
// Add a 2 cell cordon to prevent holes, then convert back to cell coordinates
var tl = map.Clamp(Map.MapToCell(map.TileShape, ctl - new CVec(2, 2)));
var br = map.Clamp(Map.MapToCell(map.TileShape, cbr + new CVec(2, 2)));
// Visible rectangle in map coordinates
var ctl = new CPos(wtl.X / 1024, wtl.Y / 1024);
var dy = map.TileShape == TileShape.Diamond ? 512 : 1024;
var cbr = new CPos((wbr.X + 1023) / 1024, (wbr.Y + dy - 1) / dy);
// Add a 1 cell cordon to prevent holes, then convert back to cell coordinates
var tl = map.Clamp(Map.MapToCell(map.TileShape, ctl - new CVec(1, 1)));
// Also need to account for height of cells in rows below the bottom
var br = map.Clamp(Map.MapToCell(map.TileShape, cbr + new CVec(1, 2 + maxGroundHeight / 2)));
cells = new CellRegion(map.TileShape, tl, br);
cellsDirty = false;