From f57f8013ddd5aedeca922f8da91133914af5f573 Mon Sep 17 00:00:00 2001
From: Christian Speckner <christian.speckner@mayflower.de>
Date: Mon, 5 Feb 2018 00:21:31 +0100
Subject: [PATCH] Improve playfield collisions during hblank.

---
 src/machine/stella/tia/Tia.ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/machine/stella/tia/Tia.ts b/src/machine/stella/tia/Tia.ts
index a2df99ce..4e44beb1 100644
--- a/src/machine/stella/tia/Tia.ts
+++ b/src/machine/stella/tia/Tia.ts
@@ -752,6 +752,10 @@ class Tia implements VideoOutputInterface {
 
                 break;
         }
+
+        if (this._extendedHblank && this._hctr > 67) {
+            this._playfield.tick(this._hctr - 68 + this._xDelta);
+        }
     }
 
     private _tickHframe() {
@@ -789,6 +793,8 @@ class Tia implements VideoOutputInterface {
         // Reset the counters
         this._hctr = 0;
 
+        this._playfield.tick(0);
+
         if (!this._movementInProgress) {
             this._linesSinceChange++;
         }
@@ -1084,7 +1090,7 @@ namespace Tia {
     }
 
     export class TrapPayload {
-        constructor(public reason: TrapReason, public tia: Tia, public message?: string) {}
+        constructor(public reason: TrapReason, public tia: Tia, public message?: string) { }
     }
 }