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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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8
OpenRA.Game/Graphics/UISpriteRenderable.cs
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@@ -21,8 +21,9 @@ namespace OpenRA.Graphics
readonly int zOffset;
readonly PaletteReference palette;
readonly float scale;
readonly float alpha;
public UISpriteRenderable(Sprite sprite, WPos effectiveWorldPos, int2 screenPos, int zOffset, PaletteReference palette, float scale)
public UISpriteRenderable(Sprite sprite, WPos effectiveWorldPos, int2 screenPos, int zOffset, PaletteReference palette, float scale = 1f, float alpha = 1f)
{
this.sprite = sprite;
this.effectiveWorldPos = effectiveWorldPos;
@@ -30,6 +31,7 @@ namespace OpenRA.Graphics
this.zOffset = zOffset;
this.palette = palette;
this.scale = scale;
this.alpha = alpha;
}
// Does not exist in the world, so a world positions don't make sense
@@ -40,7 +42,7 @@ namespace OpenRA.Graphics
public PaletteReference Palette { get { return palette; } }
public int ZOffset { get { return zOffset; } }
public IPalettedRenderable WithPalette(PaletteReference newPalette) { return new UISpriteRenderable(sprite, effectiveWorldPos, screenPos, zOffset, newPalette, scale); }
public IPalettedRenderable WithPalette(PaletteReference newPalette) { return new UISpriteRenderable(sprite, effectiveWorldPos, screenPos, zOffset, newPalette, scale, alpha); }
public IRenderable WithZOffset(int newOffset) { return this; }
public IRenderable OffsetBy(WVec vec) { return this; }
public IRenderable AsDecoration() { return this; }
@@ -48,7 +50,7 @@ namespace OpenRA.Graphics
public IFinalizedRenderable PrepareRender(WorldRenderer wr) { return this; }
public void Render(WorldRenderer wr)
{
Game.Renderer.SpriteRenderer.DrawSprite(sprite, screenPos, palette, scale * sprite.Size);
Game.Renderer.SpriteRenderer.DrawSprite(sprite, screenPos, palette, scale * sprite.Size, float3.Ones, alpha);
}
public void RenderDebugGeometry(WorldRenderer wr)