From 2c3c1f15273835923d9bd4950a19ee88a95ee0f4 Mon Sep 17 00:00:00 2001
From: Mattes D <github@xoft.cz>
Date: Thu, 11 May 2017 14:34:36 +0200
Subject: Tracer replacement (#3704)

* Replaced cTracer usage with cLineBlockTracer.

* Exported new cLineBlockTracer utility functions to Lua API.
---
 src/Bindings/DeprecatedBindings.cpp | 46 +++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

(limited to 'src/Bindings/DeprecatedBindings.cpp')

diff --git a/src/Bindings/DeprecatedBindings.cpp b/src/Bindings/DeprecatedBindings.cpp
index 0ffc58cbb..029d4edb7 100644
--- a/src/Bindings/DeprecatedBindings.cpp
+++ b/src/Bindings/DeprecatedBindings.cpp
@@ -10,6 +10,7 @@
 #include "../World.h"
 #include "../Entities/Player.h"
 #include "LuaState.h"
+#include "../Tracer.h"
 
 
 
@@ -291,6 +292,47 @@ tolua_lerror:
 
 
 
+/* method: Trace of class  cTracer */
+static int tolua_cTracer_Trace(lua_State * a_LuaState)
+{
+	// Log a deprecation warning with stacktrace:
+	cLuaState S(a_LuaState);
+	LOGWARNING("The function cTracer:Trace is obsolete, use the cLineBlockTracer instead");
+	S.LogStackTrace();
+
+	// Check params:
+	if (
+		!S.CheckParamUserType(1, "cTracer") ||
+		!S.CheckParamUserType(2, "const Vector3<float>", 3) ||
+		!S.CheckParamNumber  (4)
+	)
+	{
+		return 0;
+	}
+
+	// Read params:
+	cTracer * self;
+	Vector3d * start;
+	Vector3d * direction;
+	int distance;
+	bool lineOfSight = false;
+	if (!S.GetStackValues(1, self, start, direction, distance))
+	{
+		LOGWARNING("Cannot retrieve parameters for cTracer::Trace. Expected a cTracer (self), Vector3d, Vector3d, number and optional boolean.");
+		S.LogStackValues();
+		return 0;
+	}
+	S.GetStackValue(5, lineOfSight);
+
+	// Call and push the result:
+	S.Push(self->Trace(*start, *direction, distance, lineOfSight));
+	return 1;
+}
+
+
+
+
+
 /** function: cWorld:SetSignLines */
 static int tolua_cWorld_SetSignLines(lua_State * tolua_S)
 {
@@ -398,6 +440,10 @@ void DeprecatedBindings::Bind(lua_State * tolua_S)
 
 	tolua_function(tolua_S, "StringToMobType", tolua_AllToLua_StringToMobType00);
 
+	tolua_beginmodule(tolua_S, "cTracer");
+		tolua_function(tolua_S, "Trace", tolua_cTracer_Trace);
+	tolua_endmodule(tolua_S);
+
 	tolua_beginmodule(tolua_S, "cWorld");
 		tolua_function(tolua_S, "UpdateSign", tolua_cWorld_SetSignLines);
 	tolua_endmodule(tolua_S);
-- 
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