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Convert shroud calculations and rendering to PPos.

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This commit is contained in:
Paul Chote
2015-04-01 20:03:51 +01:00
parent e8794032e0
commit 86ba26e013
10 changed files with 161 additions and 165 deletions
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63
OpenRA.Mods.Common/Traits/World/ShroudRenderer.cs
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@@ -91,11 +91,11 @@ namespace OpenRA.Mods.Common.Traits
readonly CellLayer<TileInfo> tileInfos;
readonly Sprite[] fogSprites, shroudSprites;
readonly HashSet<CPos> cellsDirty = new HashSet<CPos>();
readonly HashSet<CPos> cellsAndNeighborsDirty = new HashSet<CPos>();
readonly HashSet<PPos> cellsDirty = new HashSet<PPos>();
readonly HashSet<PPos> cellsAndNeighborsDirty = new HashSet<PPos>();
Shroud currentShroud;
Func<MPos, bool> visibleUnderShroud, visibleUnderFog;
Func<PPos, bool> visibleUnderShroud, visibleUnderFog;
TerrainSpriteLayer shroudLayer, fogLayer;
public ShroudRenderer(World world, ShroudRendererInfo info)
@@ -158,20 +158,22 @@ namespace OpenRA.Mods.Common.Traits
// This includes the region outside the visible area to cover any sprites peeking outside the map
foreach (var uv in w.Map.AllCells.MapCoords)
{
var screen = wr.ScreenPosition(w.Map.CenterOfCell(uv.ToCPos(map)));
var pos = w.Map.CenterOfCell(uv.ToCPos(map));
var screen = wr.ScreenPosition(pos - new WVec(0, 0, pos.Z));
var variant = (byte)Game.CosmeticRandom.Next(info.ShroudVariants.Length);
tileInfos[uv] = new TileInfo(screen, variant);
}
DirtyCells(map.AllCells);
// Dirty the whole projected space
DirtyCells(map.AllCells.MapCoords.Select(uv => (PPos)uv));
// All tiles are visible in the editor
if (w.Type == WorldType.Editor)
visibleUnderShroud = _ => true;
else
visibleUnderShroud = map.Contains;
visibleUnderShroud = puv => map.Contains(puv);
visibleUnderFog = map.Contains;
visibleUnderFog = puv => map.Contains(puv);
var shroudSheet = shroudSprites[0].Sheet;
if (shroudSprites.Any(s => s.Sheet != shroudSheet))
@@ -193,25 +195,25 @@ namespace OpenRA.Mods.Common.Traits
fogLayer = new TerrainSpriteLayer(w, wr, fogSheet, fogBlend, wr.Palette(info.FogPalette), false);
}
Edges GetEdges(MPos uv, Func<MPos, bool> isVisible)
Edges GetEdges(PPos puv, Func<PPos, bool> isVisible)
{
if (!isVisible(uv))
if (!isVisible(puv))
return notVisibleEdges;
var cell = uv.ToCPos(map);
var cell = ((MPos)puv).ToCPos(map);
// If a side is shrouded then we also count the corners.
var edge = Edges.None;
if (!isVisible((cell + new CVec(0, -1)).ToMPos(map))) edge |= Edges.Top;
if (!isVisible((cell + new CVec(1, 0)).ToMPos(map))) edge |= Edges.Right;
if (!isVisible((cell + new CVec(0, 1)).ToMPos(map))) edge |= Edges.Bottom;
if (!isVisible((cell + new CVec(-1, 0)).ToMPos(map))) edge |= Edges.Left;
if (!isVisible((PPos)(cell + new CVec(0, -1)).ToMPos(map))) edge |= Edges.Top;
if (!isVisible((PPos)(cell + new CVec(1, 0)).ToMPos(map))) edge |= Edges.Right;
if (!isVisible((PPos)(cell + new CVec(0, 1)).ToMPos(map))) edge |= Edges.Bottom;
if (!isVisible((PPos)(cell + new CVec(-1, 0)).ToMPos(map))) edge |= Edges.Left;
var ucorner = edge & Edges.AllCorners;
if (!isVisible((cell + new CVec(-1, -1)).ToMPos(map))) edge |= Edges.TopLeft;
if (!isVisible((cell + new CVec(1, -1)).ToMPos(map))) edge |= Edges.TopRight;
if (!isVisible((cell + new CVec(1, 1)).ToMPos(map))) edge |= Edges.BottomRight;
if (!isVisible((cell + new CVec(-1, 1)).ToMPos(map))) edge |= Edges.BottomLeft;
if (!isVisible((PPos)(cell + new CVec(-1, -1)).ToMPos(map))) edge |= Edges.TopLeft;
if (!isVisible((PPos)(cell + new CVec(1, -1)).ToMPos(map))) edge |= Edges.TopRight;
if (!isVisible((PPos)(cell + new CVec(1, 1)).ToMPos(map))) edge |= Edges.BottomRight;
if (!isVisible((PPos)(cell + new CVec(-1, 1)).ToMPos(map))) edge |= Edges.BottomLeft;
// RA provides a set of frames for tiles with shrouded
// corners but unshrouded edges. We want to detect this
@@ -222,7 +224,7 @@ namespace OpenRA.Mods.Common.Traits
return info.UseExtendedIndex ? edge ^ ucorner : edge & Edges.AllCorners;
}
void DirtyCells(IEnumerable<CPos> cells)
void DirtyCells(IEnumerable<PPos> cells)
{
cellsDirty.UnionWith(cells);
}
@@ -244,38 +246,37 @@ namespace OpenRA.Mods.Common.Traits
}
else
{
visibleUnderShroud = map.Contains;
visibleUnderFog = map.Contains;
visibleUnderShroud = puv => map.Contains(puv);
visibleUnderFog = puv => map.Contains(puv);
}
currentShroud = shroud;
var dirty = map.ProjectedCellBounds
.SelectMany(puv => map.Unproject(puv).Select(uv => uv.ToCPos(map)));
DirtyCells(dirty);
DirtyCells(map.ProjectedCellBounds);
}
// We need to update newly dirtied areas of the shroud.
// Expand the dirty area to cover the neighboring cells, since shroud is affected by neighboring cells.
foreach (var cell in cellsDirty)
foreach (var uv in cellsDirty)
{
cellsAndNeighborsDirty.Add(cell);
cellsAndNeighborsDirty.Add(uv);
var cell = ((MPos)uv).ToCPos(map);
foreach (var direction in CVec.Directions)
cellsAndNeighborsDirty.Add(cell + direction);
cellsAndNeighborsDirty.Add((PPos)(cell + direction).ToMPos(map));
}
foreach (var cell in cellsAndNeighborsDirty)
foreach (var puv in cellsAndNeighborsDirty)
{
var uv = cell.ToMPos(map.TileShape);
var uv = (MPos)puv;
if (!tileInfos.Contains(uv))
continue;
var tileInfo = tileInfos[uv];
var shroudSprite = GetSprite(shroudSprites, GetEdges(uv, visibleUnderShroud), tileInfo.Variant);
var shroudSprite = GetSprite(shroudSprites, GetEdges(puv, visibleUnderShroud), tileInfo.Variant);
var shroudPos = tileInfo.ScreenPosition;
if (shroudSprite != null)
shroudPos += shroudSprite.Offset - 0.5f * shroudSprite.Size;
var fogSprite = GetSprite(fogSprites, GetEdges(uv, visibleUnderFog), tileInfo.Variant);
var fogSprite = GetSprite(fogSprites, GetEdges(puv, visibleUnderFog), tileInfo.Variant);
var fogPos = tileInfo.ScreenPosition;
if (fogSprite != null)
fogPos += fogSprite.Offset - 0.5f * fogSprite.Size;