Initial commit.

TRACK.CPP

@@ -0,0 +1,115 @@
+//******************************************************************
+// track.cpp
+//******************************************************************
+
+
+#include	"diablo.h"
+#pragma	hdrstop
+#include "storm/h/storm.h"
+#include	"msg.h"
+#include	"items.h"
+#include	"gendung.h"
+#include	"player.h"
+#include	"cursor.h"
+
+
+//******************************************************************
+// compiler constants
+//******************************************************************
+#define STOP_ON_MOUSEUP	0	// 0 in final
+#define TRACKING_CURSOR	0	// 1 in final
+
+
+//******************************************************************
+// private
+//******************************************************************
+	// track state on/off
+	static BOOL sgbMouseDown;
+	static BYTE sgbTrackMode;
+
+	// time tracking last performed
+	#define TRACK_START_DELAY	250	// milliseconds
+	#define TRACK_LOOP_DELAY	300	// milliseconds
+	static long sglTrackTime;
+
+
+//******************************************************************
+//******************************************************************
+void TrackMouse() {
+	// don't track if the mouse isn't down
+	if (! sgbMouseDown) return;
+
+	// don't track if the cursor is out of range
+	if (cursmx < 0) return;
+	if (cursmx >= DMAXX - 1) return;
+	if (cursmy < 0) return;
+	if (cursmy >= DMAXY - 1) return;
+
+	// don't track if the player isn't in a stand state or late walk
+	if (plr[myplr]._pVar8 <= 6 && plr[myplr]._pmode != PM_STAND) return;
+
+	// don't track if mouse still on same target
+	if (cursmx == plr[myplr]._ptargx && cursmy == plr[myplr]._ptargy) return;
+
+	// don't track if it hasn't been long enough since we last tracked
+	long lCurrTime = (long) GetTickCount();
+	long lDelta = lCurrTime - sglTrackTime;
+	if (lDelta < TRACK_LOOP_DELAY) return;
+	sglTrackTime = lCurrTime;
+
+	// track!
+	NetSendCmdLoc(TRUE,CMD_WALKXY,cursmx,cursmy);
+
+	if (! sgbTrackMode) {
+		sgbTrackMode = TRUE;
+		#if TRACKING_CURSOR
+		if (curs == GLOVE_CURS) SetCursor(TARGET_CURS);
+		#endif
+	}
+}
+
+
+//******************************************************************
+//******************************************************************
+void TrackInit(BOOL bMouseDown) {
+	// are we already in desired state?
+	if (sgbMouseDown == bMouseDown) return;
+	sgbMouseDown = bMouseDown;
+
+	if (sgbMouseDown) {
+		// indicate we haven't moved from click mode to track mode yet
+		sgbTrackMode = FALSE;
+
+		// make next track time occur after TRACK_START_DELAY
+		// instead of TRACK_LOOP_DELAY
+		sglTrackTime = (long) GetTickCount();
+		sglTrackTime += TRACK_START_DELAY;
+		sglTrackTime -= TRACK_LOOP_DELAY;
+
+		// start tracking immediately by pumping a command into queue
+		NetSendCmdLoc(TRUE,CMD_WALKXY,cursmx,cursmy);
+	}
+	else if (sgbTrackMode) {
+		// turn off track mode
+		sgbTrackMode = FALSE;
+
+		#if STOP_ON_MOUSEUP	
+		// the user clicked on a map coordinate and held the mouse down
+		// long enough to indicate tracking rather than clicking, so
+		// since the mouse is up, stop the player at current coordinate
+		NetSendCmdLoc(TRUE,CMD_WALKXY,plr[myplr]._pfutx,plr[myplr]._pfuty);
+		#endif
+
+		// restore cursor
+		#if TRACKING_CURSOR
+		if (curs == TARGET_CURS) SetCursor(GLOVE_CURS);
+		#endif
+	}
+}
+
+
+//******************************************************************
+//******************************************************************
+BOOL IsTracking() {
+	return sgbTrackMode;
+}