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Fix AE001H spritesheet animation

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This commit is contained in:
gamer147
2026-07-11 20:37:26 -04:00
parent 2a49a0697c
commit ca562da209
9 changed files with 93 additions and 51 deletions
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18
engine/Age.Engine.Tests/AnimInterpolatorTests.cs
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@@ -8,7 +8,7 @@ public class AnimInterpolatorTests
{
var g = new GfxState();
g.SetSurface(1, resId: 5, colorKey: -1);
g.BindDraw(handle, 1, 0, 0, 256, 64, 100, 100); // 256x64 sheet, base pos (100,100)
g.BindDraw(handle, 1, 0, 0, 64, 64, 100, 100); // one 64x64 cell, base pos (100,100)
return g;
}
@@ -24,22 +24,24 @@ public class AnimInterpolatorTests
public void SrcRect_StaticCell_SelectsSubRect()
{
var g = VisibleObj(0x100);
g.SetSrcRect(0x100, gridW: 4, gridH: 1, cell: 2, period: 0); // static cell 2 of 4 across 256px
g.SetSrcRect(0x100, frameCount: 4, columns: 4, cell: 2, period: 0);
var ro = g.SnapshotVisibleObjects(0).Single();
Assert.Equal(128, ro.SrcX); // cell 2 * 64
Assert.Equal(64, ro.W);
}
[Fact]
public void SrcRect_Animated_PingPongsCellAcrossGrid()
public void SrcRect_Animated_AdvancesOneCellPerPeriodAndWraps()
{
var g = VisibleObj(0x100);
g.SetSrcRect(0x100, gridW: 4, gridH: 1, cell: 0, period: 1000);
g.SetSrcRect(0x100, frameCount: 4, columns: 4, cell: 0, period: 100);
g.SnapshotVisibleObjects(0); // seeds start=0
var half = g.SnapshotVisibleObjects(500).Single();
Assert.Equal(192, half.SrcX); // t=1 -> last cell (3) * 64
var back = g.SnapshotVisibleObjects(1000).Single();
Assert.Equal(0, back.SrcX); // ping-ponged back to cell 0
var second = g.SnapshotVisibleObjects(100).Single();
Assert.Equal(64, second.SrcX);
var fourth = g.SnapshotVisibleObjects(300).Single();
Assert.Equal(192, fourth.SrcX);
var wrapped = g.SnapshotVisibleObjects(400).Single();
Assert.Equal(0, wrapped.SrcX);
}
[Fact]