From 6bf5b3516f6e641a7c505bb9a105819ec8b8513b Mon Sep 17 00:00:00 2001
From: peterino2 <peterlimail47@gmail.com>
Date: Sun, 26 Oct 2025 15:50:50 -0700
Subject: [PATCH] saving

---
 projects/headless/main.zig | 102 +------------------------------------
 1 file changed, 2 insertions(+), 100 deletions(-)

diff --git a/projects/headless/main.zig b/projects/headless/main.zig
index b8559e2..45a1f1d 100644
--- a/projects/headless/main.zig
+++ b/projects/headless/main.zig
@@ -20,22 +20,16 @@ pub fn prepare(self: *@This()) !void {
         const x = e.addComponent(core.Scene).?;
         x.setMobility(.moveable);
     }
-
-    // try self.testThing();
 }
 
 pub fn tick(self: *@This(), dt: f64) void {
-    // std.Thread.sleep(1000_000);
     self.timeLeft -= dt;
 
     const start = core.getEngineTime();
-
     core.parallelJob(UpdateWorldTransformsJob{}, false, 1) catch unreachable;
 
     // wait 10 ms
-    while (core.getEngineTime() - start < 0.010) {
-        // std.Thread.sleep(10_000_000);
-    }
+    while (core.getEngineTime() - start < 0.010) { }
 
     if (self.timeLeft < 0)
         core.exitNow();
@@ -45,98 +39,6 @@ pub fn deinit(self: *@This()) void {
     self.allocator.destroy(self);
 }
 
-const Src = std.builtin.SourceLocation;
-pub fn BarrierCV(src: Src) type {
-    return struct {
-        pub const Src = src;
-
-        pub var count: u32 = 0;
-        pub var generation: u32 = 0;
-        pub var mutex: std.Thread.Mutex = .{};
-        pub var cv: std.Thread.Condition = .{};
-
-        pub fn sync(threadId: u32, barrierCount: u32) !void {
-            _ = threadId;
-
-            mutex.lock();
-            defer mutex.unlock();
-
-            count += 1;
-
-            if (count == barrierCount) {
-                // 2 second timeout
-                count = 0;
-                generation += 1;
-                cv.broadcast();
-            } else {
-                try cv.timedWait(&mutex, 1000 * 1000 * 1000 * 2);
-            }
-        }
-    };
-}
-
-pub fn BarrierSpin(src: Src) type {
-    return struct {
-        pub const Src = src;
-
-        pub var count: std.atomic.Value(u32) = std.atomic.Value(u32).init(0);
-        pub var park: std.atomic.Value(bool) = std.atomic.Value(bool).init(false);
-
-        pub fn sync(threadId: u32, barrierCount: u32) !void {
-            _ = threadId;
-
-            const c = count.fetchAdd(1, .release);
-            if (c + 1 == barrierCount) {
-                park.store(true, .release);
-                while (count.load(.acquire) > 1) {}
-                _ = count.fetchSub(1, .release);
-                park.store(false, .release);
-            } else {
-                while (park.load(.acquire) == false) {}
-                _ = count.fetchSub(1, .seq_cst);
-            }
-        }
-    };
-}
-
-pub const Barrier = BarrierSpin;
-
-const MultiJob = struct {
-    threadId: u32 = 0,
-    threadCount: u32 = 1,
-    threadName: []const u8,
-
-    pub fn func(ctx: @This(), job: *core.JobContext) void {
-        _ = job;
-        core.tracy.SetThreadName(@ptrCast(ctx.threadName.ptr));
-        ctx.loop() catch {};
-
-        if (core.getEngine().isShuttingDown()) {}
-
-        Barrier(@src()).sync(ctx.threadId, ctx.threadCount) catch unreachable;
-    }
-
-    pub fn loop(ctx: @This()) !void {
-        while (!core.getEngine().isShuttingDown()) {
-            try Barrier(@src()).sync(ctx.threadId, ctx.threadCount);
-            try ctx.tick();
-            if (ctx.threadId == 0) {
-                const z = core.tracy.ZoneN(@src(), "Thread 0 sleep");
-                defer z.End();
-                core.waitSeconds(0.01);
-            }
-        }
-    }
-
-    pub fn tick(ctx: @This()) !void {
-        const z = core.tracy.ZoneN(@src(), "MultiJob Tick");
-        defer z.End();
-        // std.Thread.sleep(100_000 * ctx.threadId);
-
-        try Barrier(@src()).sync(ctx.threadId, ctx.threadCount);
-    }
-};
-
 const UpdateWorldTransformsJob = struct {
     world: ?*anyopaque = null,
 
@@ -161,8 +63,8 @@ const UpdateWorldTransformsJob = struct {
         const denseRepr = core.Scene.SceneObjectContainer.denseItems(._repr);
 
         const z3 = core.tracy.ZoneN(@src(), "Merge Outputs");
+
         // merge outputs
-        // current a noop just iterate over the outputlist
         for (outputList.items) |outIndex| {
             if (denseRepr[outIndex].merge.cmpxchgStrong(false, true, .seq_cst, .acquire) != null) {
                 denseRepr[outIndex].transform = outputs[outIndex];