diff --git a/src/game.c b/src/game.c
index 841fcb2031..5bc158bb28 100644
--- a/src/game.c
+++ b/src/game.c
@@ -129,6 +129,75 @@ const draw_rain_func draw_rain_function[] = {
 	&draw_heavy_rain	// Heavy rain 
 };
 
+
+void sub_0x684027(int left, int top, int width, int height, int ebp, int edi, int esi){
+ int eax = left, ebx = top, ecx = width, edx = height;
+ ebp = RCT2_ADDRESS(0x9AC010,uint32)[ebp];
+ RCT2_GLOBAL(0xee7854,uint32) = eax;
+ RCT2_GLOBAL(0xee7858,uint32) = ebx;
+ RCT2_GLOBAL(0xee785C,uint32) = ecx;
+ RCT2_GLOBAL(0xee7860,uint32) = edx;
+ eax = *((uint8*)ebp);
+ ebx = *((uint8*)(ebp+1));
+ RCT2_GLOBAL(0xEE7864,uint32) = eax;
+ eax--;
+ ebx--;
+ RCT2_GLOBAL(0xEE7868,uint32) = eax;
+ RCT2_GLOBAL(0xEE786C,uint32) = ebx;
+ edi &= eax;
+ esi &= ebx;
+ RCT2_GLOBAL(0xEE7870,uint32) = edi;
+ ebp+=2;
+ ebx = RCT2_GLOBAL(0x9ABDD4,uint16);
+ ebx += RCT2_GLOBAL(0x9ABDD0,uint16);
+ RCT2_GLOBAL(0xEE7874,uint32) = ebx;
+ ebx *= top;
+ ebx += left;
+ ecx = esi;
+ edi = RCT2_GLOBAL(0x9AC00C,uint32);
+ edi <<= 2;
+ esi = RCT2_GLOBAL(0x9ABDC8,uint32);
+ edi += 0xEDF850;
+
+ //loop at 6840A4
+ int al = *((uint8*)(ecx*2+ebp));
+ if (al == 0xFF) continue;
+ if (RCT2_GLOBAL(0x9AC00C,uint32) > 0x1F38) continue;
+ //push ebx
+ //push ecx
+ eax -= RCT2_GLOBAL(0xEE7870,uint32);
+ edx = RCT2_GLOBAL(0xEE785C,uint32);
+ eax &= RCT2_GLOBAL(0xEE7868,uint32);
+ edx += ebx;
+ ebx += eax;
+ if (ebx >= edx)continue;
+ int ah = *((uint8*)(ecx*2+ebp+1));
+ ecx = RCT2_GLOBAL(0xEE7864,uint32);
+
+ //inner loop
+ al = ah;
+ int old_al = al;
+ al = *((uint8*)(esi+ebx));
+ *((uint8*)(esi+ebx)) = old_al;
+ RCT2_GLOBAL(0x9AC00C,uint32)++;
+ ebx <<= 8;
+ ebx |= al;
+ *(uint32*)edi = ebx;
+ ebx >>= 8;
+ edi += 4;
+ ebx += ecx;
+ if (ebx < edx) inner loop;
+
+ //pop ecx
+ //pop ebx
+ ecx++;
+ ebx += RCT2_GLOBAL(0xEE7874,uint32);
+ ecx &= RCT2_GLOBAL(0xEE786C,uint32);
+ RCT2_GLOBAL(0xEE7860,uint32)--;
+ if (RCT2_GLOBAL(0xEE7860,uint32)!= 0) loop;
+ 
+}
+
 /**
 *
 *  rct2: 0x006ED801