From 1c790cc19e92d8ad9d74c637de51175159f6bdd2 Mon Sep 17 00:00:00 2001
From: Alexander Pickering <alex@cogarr.net>
Date: Sat, 29 Sep 2018 16:16:42 -0400
Subject: Added a raytest methods for physics

Added a phys.raytest(vector3 from, vector3 to) :: boolean hasHit
---
 src/client/lua_api/load_phys.cpp | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/client/lua_api/load_phys.cpp b/src/client/lua_api/load_phys.cpp
index 23bb22a..0a4889b 100644
--- a/src/client/lua_api/load_phys.cpp
+++ b/src/client/lua_api/load_phys.cpp
@@ -8,16 +8,37 @@ extern "C" {
   #include <lualib.h>
 }
 #include <irrlicht.h>
-
 #include "../callbackhandeler.hpp"
 #include "phys/cbphysbox.hpp"
 #include "phys/bphysmodel.hpp"
+#include <btBulletDynamicsCommon.h>
+#include <btBulletCollisionCommon.h>
+//#include <shared/phys/physcommon.hpp>
+#include <shared/lua_api/common.hpp>
 
 using namespace irr;
 using namespace gui;
 using namespace core;
 
 extern IrrlichtDevice* device;
+extern btDiscreteDynamicsWorld* World;
+extern btBroadphaseInterface *BroadPhase;
+
+//raytest({from},{to},{mins},{maxes}) :: hashit
+int raytest(lua_State *L){
+	double fx,fy,fz;
+	double tx,ty,tz;
+	popvector3d(L, &fx, &fy, &fz);
+	popvector3d(L, &tx, &ty, &tz);
+
+	btVector3 from(fx, fy, fz);
+	btVector3 to(tx, ty, tz);
+	btCollisionWorld::RayResultCallback *res = new btDiscreteDynamicsWorld::ClosestRayResultCallback(from, to);
+	World->rayTest(from,to,*res);
+
+	lua_pushboolean(L,res->hasHit());
+	return 1;
+}
 
 void load_physfuncs(lua_State* L){
 	lua_newtable(L);//{}
@@ -26,4 +47,9 @@ void load_physfuncs(lua_State* L){
 	cbphysbox_register(L);
 	
 	bphysmodel_register(L,device);
+
+	lua_getglobal(L,"phys");//{}
+	lua_pushcfunction(L,raytest);//{},raytest()
+	lua_setfield(L,-2,"raytest");//{}
+	lua_pop(L,1);
 }
-- 
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