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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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28
OpenRA.Mods.Common/Traits/Buildings/FootprintPlaceBuildingPreview.cs
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@@ -51,8 +51,8 @@ namespace OpenRA.Mods.Common.Traits
readonly FootprintPlaceBuildingPreviewInfo info;
readonly IPlaceBuildingDecorationInfo[] decorations;
readonly int2 topLeftScreenOffset;
readonly Sprite buildOk;
readonly Sprite buildBlocked;
readonly Sprite validTile, blockedTile;
readonly float validAlpha, blockedAlpha;
public FootprintPlaceBuildingPreviewPreview(WorldRenderer wr, ActorInfo ai, FootprintPlaceBuildingPreviewInfo info, TypeDictionary init)
{
@@ -66,10 +66,21 @@ namespace OpenRA.Mods.Common.Traits
var tileset = world.Map.Tileset.ToLowerInvariant();
if (world.Map.Rules.Sequences.HasSequence("overlay", "build-valid-{0}".F(tileset)))
buildOk = world.Map.Rules.Sequences.GetSequence("overlay", "build-valid-{0}".F(tileset)).GetSprite(0);
{
var validSequence = world.Map.Rules.Sequences.GetSequence("overlay", "build-valid-{0}".F(tileset));
validTile = validSequence.GetSprite(0);
validAlpha = validSequence.GetAlpha(0);
}
else
buildOk = world.Map.Rules.Sequences.GetSequence("overlay", "build-valid").GetSprite(0);
buildBlocked = world.Map.Rules.Sequences.GetSequence("overlay", "build-invalid").GetSprite(0);
{
var validSequence = world.Map.Rules.Sequences.GetSequence("overlay", "build-valid");
validTile = validSequence.GetSprite(0);
validAlpha = validSequence.GetAlpha(0);
}
var blockedSequence = world.Map.Rules.Sequences.GetSequence("overlay", "build-invalid");
blockedTile = blockedSequence.GetSprite(0);
blockedAlpha = blockedSequence.GetAlpha(0);
}
protected virtual void TickInner() { }
@@ -84,11 +95,12 @@ namespace OpenRA.Mods.Common.Traits
if ((c.Value & filter) == 0)
continue;
var tile = (c.Value & PlaceBuildingCellType.Invalid) != 0 ? buildBlocked : buildOk;
var tile = (c.Value & PlaceBuildingCellType.Invalid) != 0 ? blockedTile : validTile;
var sequenceAlpha = (c.Value & PlaceBuildingCellType.Invalid) != 0 ? blockedAlpha : 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);
}
}