1 files changed, 142 insertions, 0 deletions
diff --git a/src/hexen/p_tick.c b/src/hexen/p_tick.c
new file mode 100644
index 00000000..a4bdb2cf
--- /dev/null
+++ b/src/hexen/p_tick.c
@@ -0,0 +1,142 @@
+
+//**************************************************************************
+//**
+//** p_tick.c : Heretic 2 : Raven Software, Corp.
+//**
+//** $RCSfile: p_tick.c,v $
+//** $Revision: 1.5 $
+//** $Date: 95/10/08 21:53:00 $
+//** $Author: bgokey $
+//**
+//**************************************************************************
+
+// HEADER FILES ------------------------------------------------------------
+
+#include "h2def.h"
+#include "p_local.h"
+
+// MACROS ------------------------------------------------------------------
+
+// TYPES -------------------------------------------------------------------
+
+// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
+
+// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
+
+// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
+
+static void RunThinkers(void);
+
+// EXTERNAL DATA DECLARATIONS ----------------------------------------------
+
+// PUBLIC DATA DEFINITIONS -------------------------------------------------
+
+int leveltime;
+int TimerGame;
+thinker_t thinkercap; // The head and tail of the thinker list
+
+// PRIVATE DATA DEFINITIONS ------------------------------------------------
+
+// CODE --------------------------------------------------------------------
+
+//==========================================================================
+//
+// P_Ticker
+//
+//==========================================================================
+
+void P_Ticker(void)
+{
+	int i;
+
+	if(paused)
+	{
+		return;
+	}
+	for(i = 0; i < MAXPLAYERS; i++)
+	{
+		if(playeringame[i])
+		{
+			P_PlayerThink(&players[i]);
+		}
+	}
+	if(TimerGame)
+	{
+		if(!--TimerGame)
+		{
+			G_Completed(P_TranslateMap(P_GetMapNextMap(gamemap)), 0);
+		}
+	}
+	RunThinkers();
+	P_UpdateSpecials();
+	P_AnimateSurfaces();
+	leveltime++;
+}
+
+//==========================================================================
+//
+// RunThinkers
+//
+//==========================================================================
+
+static void RunThinkers(void)
+{
+	thinker_t *currentthinker;
+
+	currentthinker = thinkercap.next;
+	while(currentthinker != &thinkercap)
+	{
+		if(currentthinker->function == (think_t)-1)
+		{ // Time to remove it
+			currentthinker->next->prev = currentthinker->prev;
+			currentthinker->prev->next = currentthinker->next;
+			Z_Free(currentthinker);
+		}
+		else if(currentthinker->function)
+		{
+			currentthinker->function(currentthinker);
+		}
+		currentthinker = currentthinker->next;
+	}
+}
+
+//==========================================================================
+//
+// P_InitThinkers
+//
+//==========================================================================
+
+void P_InitThinkers(void)
+{
+	thinkercap.prev = thinkercap.next  = &thinkercap;
+}
+
+//==========================================================================
+//
+// P_AddThinker
+//
+// Adds a new thinker at the end of the list.
+//
+//==========================================================================
+
+void P_AddThinker(thinker_t *thinker)
+{
+	thinkercap.prev->next = thinker;
+	thinker->next = &thinkercap;
+	thinker->prev = thinkercap.prev;
+	thinkercap.prev = thinker;
+}
+
+//==========================================================================
+//
+// P_RemoveThinker
+//
+// Deallocation is lazy -- it will not actually be freed until its
+// thinking turn comes up.
+//
+//==========================================================================
+
+void P_RemoveThinker(thinker_t *thinker)
+{
+	thinker->function = (think_t)-1;
+}