Lua script works now, worked around the bug by saving the name as a std::string.

Levels/scripts/deleteRandomObject.lua

@@ -1,9 +1,8 @@
 function trigger(objectToChange)
-    print("Hello from Lua!")
+    if(not this_level) then
-    --if(not this_level) then
         print("No level found!")
         return
-    --end
+    end
     a = this_level:getObjectCount()
     rand = math.random(0, a - 1)
     this_level:deleteObject(rand)

level.cc

@@ -376,7 +376,7 @@ void Level::load() {
                 }
                 if (object != 0) {
                     if (objectToChange != 0) {
-                        Trigger trigger = Trigger(position, distance, isBigger, object, luaScript, L, objectToChange, this);
+                        Trigger trigger = Trigger(position, distance, isBigger, object, luaScript, L, objectToChange);
                         triggers.push_back(trigger);
                     }
                     else {
@@ -484,7 +484,6 @@ std::vector<Object*>* Level::getObjects() {
 
 void Level::deleteObject(int objectIndex){
     objects.erase(objects.begin() + objectIndex);
-    printf("Deleting an object.\n");
 }
 
 int Level::getObjectCount(){

trigger.cc

@@ -1,17 +1,11 @@
 #include "trigger.hh"
-#include "level.hh"
 
-Trigger::Trigger(glm::vec3 position, float distance, bool isBigger, Object* object, std::string luaScript, lua_State* L, int objectToChange, Level* level) {
+Trigger::Trigger(glm::vec3 position, float distance, bool isBigger, Object* object, std::string luaScript, lua_State* L, int objectToChange) {
     this->position=position;
     this->distance=distance;
     this->isBigger=isBigger;
     this->object=object;
-    this->triggerLuaScript=("../Levels/scripts/" + luaScript + ".lua").c_str();
+    this->luaScript="../Levels/scripts/" + luaScript + ".lua";
-    printf("Hallo\n");
-    printf(this->triggerLuaScript);
-    printf("Hallo\n");
-    printf("\n");
-    this->level = level;
     this->L = L;
     if(L == nullptr){
         printf("L is NULL in trigger!\n");
@@ -29,41 +23,14 @@ Trigger::~Trigger(){
 void Trigger::triggerUpdate(){
     if (!triggered){
         if (isBigger && (glm::distance(object->getPosition(), position) > distance)) {
-            printf(triggerLuaScript);
+            luaL_dofile(L, luaScript.c_str());
-            printf("\n");
+            luabridge::getGlobal(L, "trigger")(objectToChange);
-            printf(triggerLuaScript);
-            printf("\nTriggering\n");
-            //luaL_dofile(L, luaScript);
-            //luabridge::getGlobal(L, "trigger")(objectToChange);
             triggered = true;
         }
         else if (!isBigger && (glm::distance(object->getPosition(), position) < distance)) {
-            printf(triggerLuaScript);
+            luaL_dofile(L, luaScript.c_str());
-            printf("\n");
+            luabridge::getGlobal(L, "trigger")(objectToChange);
-            printf(triggerLuaScript);
-            printf("\nTriggering\n");
-            //luaL_dofile(L, luaScript);
-            //luabridge::getGlobal(L, "trigger")(objectToChange);
             triggered = true;
         }
     }
 }
-
-void Trigger::trigger_function_0(Level* level) {
-    if (!triggered) {
-        int rand = std::rand() % level->getObjects()->size();
-        level->getObjects()->erase(level->getObjects()->begin() + rand);
-    }
-}
-
-void Trigger::trigger_function_1(Level* level) {
-}
-
-void Trigger::trigger_function_2(Level* level) {
-}
-
-void Trigger::trigger_function_3(Level* level) {
-}
-
-void Trigger::trigger_function_4(Level* level) {
-}

trigger.hh

@@ -14,7 +14,7 @@ class Level;
 
 class Trigger {
     public:
-        Trigger(glm::vec3 position, float distance, bool isBigger, Object* object, std::string luaScript, lua_State* L, int objectToChange, Level* level);
+        Trigger(glm::vec3 position, float distance, bool isBigger, Object* object, std::string luaScript, lua_State* L, int objectToChange);
 	    Trigger();
         ~Trigger();
         void triggerUpdate();
@@ -23,16 +23,10 @@ class Trigger {
         float distance;
         bool isBigger;
         Object* object;
-        const char* triggerLuaScript;
+        std::string luaScript;
-        Level* level;
         bool triggered;
         lua_State* L;
         int objectToChange;
-        void trigger_function_0(Level* level);
-        void trigger_function_1(Level* level);
-        void trigger_function_2(Level* level);
-        void trigger_function_3(Level* level);
-        void trigger_function_4(Level* level);
 };
 
 #endif