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Land SYSTEM4-rooted Godot boot

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gamer147
2026-07-20 18:13:32 -04:00
parent 7250de7fea
commit 097473fe16
18 changed files with 385 additions and 111 deletions
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53
engine/Age.Engine.Tests/CallScriptTests.cs
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@@ -9,16 +9,19 @@ public class CallScriptTests
{
// Opcodes (from build/opcodes.json): exit=0x2, call-script=0x3(argc1), mov=0x55(argc2).
// Operand types: imm=0, global-int=3, local-int=9.
private const uint OP_EXIT = 0x2, OP_CALLSCRIPT = 0x3, OP_MOV = 0x55;
private const uint OP_EXIT = 0x2, OP_CALLSCRIPT = 0x3, OP_MOV = 0x55, OP_SETTEXTURE = 0x1f9;
private sealed class NullHost : IHost
private class NullHost : IHost
{
public virtual void EnterScriptContext(string scriptName) { }
public virtual void ExitScriptContext() { }
public virtual long ResolveTextureResourceId(long resourceId) => resourceId;
public void ShowText(int o, string t) { }
public void WaitForInput() { }
public void Sleep(long duration) { }
public void FrameYield() { }
public void CreateTexture(int s, int w, int h) { }
public void SetTexture(long r, int s) { }
public virtual void SetTexture(long r, int s) { }
public void DrawTexture(int s, int sx, int sy, int w, int h, int dx, int dy) { }
public (int Width, int Height) GetTextureSize(int s) => (0, 0);
public void PlayBgm(long id) { }
@@ -32,6 +35,29 @@ public class CallScriptTests
public Script? GetById(long id) => _m.TryGetValue(id, out var s) ? s : null;
}
private sealed class ContextHost : NullHost
{
private readonly Stack<string> _contexts = new();
public List<string> Events { get; } = new();
public List<(long ResourceId, int Slot)> Textures { get; } = new();
public override void EnterScriptContext(string scriptName)
{
_contexts.Push(scriptName);
Events.Add($"enter:{scriptName}");
}
public override void ExitScriptContext()
{
Events.Add($"exit:{_contexts.Pop()}");
}
public override long ResolveTextureResourceId(long resourceId)
=> resourceId + (_contexts.Peek() == "CALLEE" ? 700 : 70);
public override void SetTexture(long resourceId, int slot) => Textures.Add((resourceId, slot));
}
// Build a Script from raw dwords via the real loader (guarantees identical decode).
private static Script Asm(OpcodeTable t, string name, params uint[] body)
{
@@ -105,4 +131,25 @@ public class CallScriptTests
vm.Run();
Assert.Equal(1, vm.Globals[0x20]); // caller's local 0 unchanged by callee's local 0
}
[Fact]
public void ScriptLocalTextureIdsFollowTheActiveNestedFrame()
{
var t = Table();
var callee = Asm(t, "CALLEE",
OP_SETTEXTURE, 0, 7, 0, 2, 0, uint.MaxValue,
OP_EXIT);
var caller = Asm(t, "CALLER",
OP_SETTEXTURE, 0, 7, 0, 1, 0, uint.MaxValue,
OP_CALLSCRIPT, 0, 5,
OP_SETTEXTURE, 0, 7, 0, 3, 0, uint.MaxValue,
OP_EXIT);
var host = new ContextHost();
var vm = new VirtualMachine(caller, t, host, null, new MapProvider(new() { [5] = callee }));
vm.Run();
Assert.Equal(new[] { (77L, 1), (707L, 2), (77L, 3) }, host.Textures);
Assert.Equal(new[] { "enter:CALLER", "enter:CALLEE", "exit:CALLEE", "exit:CALLER" }, host.Events);
}
}