From 339e921f1793083e7ec3afc986d4a7ad0e47c37b Mon Sep 17 00:00:00 2001
From: "Michael Cook (mackal)" <mcook@mackal.net>
Date: Wed, 14 Mar 2018 16:09:43 -0400
Subject: [PATCH] Add a #push command, only works on NPCs for now

---
 zone/command.cpp | 30 ++++++++++++++++++++++++++++++
 zone/command.h   |  1 +
 zone/mob.h       |  4 ++++
 3 files changed, 35 insertions(+)

diff --git a/zone/command.cpp b/zone/command.cpp
index 4ca94fcb4..3ef118934 100644
--- a/zone/command.cpp
+++ b/zone/command.cpp
@@ -67,10 +67,12 @@
 #include "titles.h"
 #include "water_map.h"
 #include "worldserver.h"
+#include "fastmath.h"
 
 extern QueryServ* QServ;
 extern WorldServer worldserver;
 extern TaskManager *taskmanager;
+extern FastMath g_Math;
 void CatchSignal(int sig_num);
 
 
@@ -306,6 +308,7 @@ int command_init(void)
 		command_add("profilereset", "- Reset profiling info", 250, command_profilereset) ||
 #endif
 
+		command_add("push", "Lets you do spell push", 150, command_push) ||
 		command_add("pvp", "[on/off] - Set your or your player target's PVP status", 100, command_pvp) ||
 		command_add("qglobal", "[on/off/view] - Toggles qglobal functionality on an NPC", 100, command_qglobal) ||
 		command_add("questerrors", "Shows quest errors.", 100, command_questerrors) ||
@@ -4052,6 +4055,33 @@ void command_unfreeze(Client *c, const Seperator *sep)
 		c->Message(0, "ERROR: Unfreeze requires a target.");
 }
 
+void command_push(Client *c, const Seperator *sep)
+{
+	Mob *t = c;
+	if (c->GetTarget() != nullptr)
+		t = c->GetTarget();
+
+	if (!sep->arg[1] || !sep->IsNumber(1)) {
+		c->Message(0, "ERROR: Must provide at least a push back.");
+		return;
+	}
+
+	float back = atof(sep->arg[1]);
+	float up = 0.0f;
+
+	if (sep->arg[2] && sep->IsNumber(2))
+		up = atof(sep->arg[2]);
+
+	if (t->IsNPC()) {
+		t->IncDeltaX(back * g_Math.FastSin(c->GetHeading()));
+		t->IncDeltaY(back * g_Math.FastCos(c->GetHeading()));
+		t->IncDeltaZ(up);
+		t->SetForcedMovement(6);
+	} else if (t->IsClient()) {
+		// TODO: send packet to push
+	}
+}
+
 void command_pvp(Client *c, const Seperator *sep)
 {
 	bool state=atobool(sep->arg[1]);
diff --git a/zone/command.h b/zone/command.h
index 580dd00ff..d3bae6c0c 100644
--- a/zone/command.h
+++ b/zone/command.h
@@ -211,6 +211,7 @@ void command_profiledump(Client *c, const Seperator *sep);
 void command_profilereset(Client *c, const Seperator *sep);
 #endif
 
+void command_push(Client *c, const Seperator *sep);
 void command_pvp(Client *c, const Seperator *sep);
 void command_qglobal(Client *c, const Seperator *sep);
 void command_qtest(Client *c, const Seperator *sep);
diff --git a/zone/mob.h b/zone/mob.h
index a160b2a45..43d8f9b59 100644
--- a/zone/mob.h
+++ b/zone/mob.h
@@ -582,6 +582,10 @@ public:
 		m_Position.z = NewPosition.z; };
 	void TryMoveAlong(float distance, float angle, bool send = true);
 	void ProcessForcedMovement();
+	inline void IncDeltaX(float in) { m_Delta.x += in; }
+	inline void IncDeltaY(float in) { m_Delta.y += in; }
+	inline void IncDeltaZ(float in) { m_Delta.z += in; }
+	inline void SetForcedMovement(int in) { ForcedMovement = in; }
 
 	//AI
 	static uint32 GetLevelCon(uint8 mylevel, uint8 iOtherLevel);