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Add Alpha support to sequences.

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Alpha can specify a single value for the sequence
or values for each frame in the sequence.

AlphaFade: True can be specified to linearly fade
to transparent over the length of the animation.
This commit is contained in:
Paul Chote
2021-01-31 23:24:12 +00:00
committed by teinarss
parent 445d943549
commit 0975102e92
23 changed files with 189 additions and 78 deletions
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29
OpenRA.Mods.D2k/Traits/Buildings/D2kActorPreviewPlaceBuildingPreview.cs
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@@ -45,9 +45,8 @@ namespace OpenRA.Mods.D2k.Traits
{
readonly D2kActorPreviewPlaceBuildingPreviewInfo info;
readonly bool checkUnsafeTiles;
readonly Sprite buildOk;
readonly Sprite buildUnsafe;
readonly Sprite buildBlocked;
readonly Sprite validTile, unsafeTile, blockedTile;
readonly float validAlpha, unsafeAlpha, blockedAlpha;
readonly CachedTransform<CPos, List<CPos>> unpathableCells;
public D2kActorPreviewPlaceBuildingPreviewPreview(WorldRenderer wr, ActorInfo ai, D2kActorPreviewPlaceBuildingPreviewInfo info, TypeDictionary init)
@@ -61,9 +60,17 @@ namespace OpenRA.Mods.D2k.Traits
var techTree = init.Get<OwnerInit>().Value(world).PlayerActor.Trait<TechTree>();
checkUnsafeTiles = info.RequiresPrerequisites.Any() && techTree.HasPrerequisites(info.RequiresPrerequisites);
buildOk = sequences.GetSequence("overlay", "build-valid").GetSprite(0);
buildUnsafe = sequences.GetSequence("overlay", "build-unsafe").GetSprite(0);
buildBlocked = sequences.GetSequence("overlay", "build-invalid").GetSprite(0);
var validSequence = sequences.GetSequence("overlay", "build-valid");
validTile = validSequence.GetSprite(0);
validAlpha = validSequence.GetAlpha(0);
var unsafeSequence = sequences.GetSequence("overlay", "build-unsafe");
unsafeTile = unsafeSequence.GetSprite(0);
unsafeAlpha = unsafeSequence.GetAlpha(0);
var blockedSequence = sequences.GetSequence("overlay", "build-invalid");
blockedTile = blockedSequence.GetSprite(0);
blockedAlpha = blockedSequence.GetAlpha(0);
var buildingInfo = ai.TraitInfo<BuildingInfo>();
unpathableCells = new CachedTransform<CPos, List<CPos>>(topLeft => buildingInfo.OccupiedTiles(topLeft).ToList());
@@ -81,14 +88,14 @@ namespace OpenRA.Mods.D2k.Traits
if ((c.Value & filter) == 0)
continue;
var tile = (c.Value & PlaceBuildingCellType.Invalid) != 0 ? buildBlocked :
(checkUnsafeTiles && candidateSafeTiles.Contains(c.Key) && info.UnsafeTerrainTypes.Contains(wr.World.Map.GetTerrainInfo(c.Key).Type))
? buildUnsafe : buildOk;
var isUnsafe = checkUnsafeTiles && candidateSafeTiles.Contains(c.Key) && info.UnsafeTerrainTypes.Contains(wr.World.Map.GetTerrainInfo(c.Key).Type);
var tile = (c.Value & PlaceBuildingCellType.Invalid) != 0 ? blockedTile : isUnsafe ? unsafeTile : validTile;
var sequenceAlpha = (c.Value & PlaceBuildingCellType.Invalid) != 0 ? blockedAlpha : isUnsafe ? unsafeAlpha : validAlpha;
var pos = wr.World.Map.CenterOfCell(c.Key);
var offset = new WVec(0, 0, topLeftPos.Z - pos.Z);
var alpha = (c.Value & PlaceBuildingCellType.LineBuild) != 0 ? info.LineBuildFootprintAlpha : info.FootprintAlpha;
yield return new SpriteRenderable(tile, pos, offset, -511, palette, 1f, alpha, float3.Ones, TintModifiers.IgnoreWorldTint, true);
var traitAlpha = (c.Value & PlaceBuildingCellType.LineBuild) != 0 ? info.LineBuildFootprintAlpha : info.FootprintAlpha;
yield return new SpriteRenderable(tile, pos, offset, -511, palette, 1f, sequenceAlpha * traitAlpha, float3.Ones, TintModifiers.IgnoreWorldTint, true);
}
}
}