From 26f6659ec0d8f7c752d12d45cfbfd25a9da05af4 Mon Sep 17 00:00:00 2001
From: peter1138 <peter1138@openttd.org>
Date: Tue, 2 May 2006 20:17:17 +0000
Subject: (svn r4696) - NewGRF: add support for vehicle variable 0x60, count
 vehicle type occurance.

---
 newgrf_engine.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/newgrf_engine.c b/newgrf_engine.c
index 16a2f1289..519977c94 100644
--- a/newgrf_engine.c
+++ b/newgrf_engine.c
@@ -500,6 +500,18 @@ static uint32 VehicleGetVariable(const ResolverObject *object, byte variable, by
 
 		case 0x46: /* Motion counter */
 			return 0;
+
+		/* Variables which use the parameter */
+		case 0x60: /* Count consist's engine ID occurance */
+			if (v->type != VEH_Train) return v->engine_type == parameter;
+
+			{
+				uint count = 0;
+				for (; v != NULL; v = v->next) {
+					if (v->engine_type == parameter) count++;
+				}
+				return count;
+			}
 	}
 
 	/* General vehicle properties */
-- 
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