From 265c0b2ce58518127e36521785d74d796c5a1993 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Steffen=20F=C3=BCndgens?= <steffen.fuendgens@rwth-aachen.de>
Date: Fri, 13 Feb 2015 17:14:29 +0100
Subject: [PATCH] Added resetPlayer function to the level.

---
 Levels/ObjectSetups/Compositions.xml |  4 ++--
 application.cc                       |  5 +++--
 level.cc                             | 10 ++++++++-
 level.hh                             |  4 +++-
 loader.cc                            | 32 ++++++++++++++++++++++++++++
 loader.hh                            |  3 ++-
 terrain.cc                           |  1 +
 7 files changed, 52 insertions(+), 7 deletions(-)

diff --git a/Levels/ObjectSetups/Compositions.xml b/Levels/ObjectSetups/Compositions.xml
index 7792f76..14e78d0 100644
--- a/Levels/ObjectSetups/Compositions.xml
+++ b/Levels/ObjectSetups/Compositions.xml
@@ -1,7 +1,7 @@
 <!-- Rotations around the three axes are given in degrees.
     The objects are first rotated around the z-, then y- and then x-axis. -->
 
-<!-- Marble -->
+<!-- Marble: Do not change!(except for mass)-->
 <composition>
     <typeID>20</typeID>
     <ignoreHeightmap>false</ignoreHeightmap>
@@ -415,7 +415,7 @@
         <yRot>0.0</yRot>
         <zRot>0.0</zRot>
         <scale>1.5</scale>
-        <mass>0.0</mass>
+        <mass>100.0</mass>
     </object>
 </composition>
 
diff --git a/application.cc b/application.cc
index b16e9c0..e4539a7 100644
--- a/application.cc
+++ b/application.cc
@@ -14,7 +14,8 @@ void Application::init()
     std::srand(std::time(NULL));
     // choose Level             TODO: Choose this in a menu
     std::string heightmapFilePath = heightmapPath + "heightmapLvl1.png";
-    this->level = Level(heightmapFilePath);
+    std::string levelXmlFilePath = levelXmlPath + "Level1.xml";
+    this->level = Level(heightmapFilePath, levelXmlFilePath);
     level.getPhysics()->init(geometryPath);
     // Don't change this!
     ignoredMouseUpdates = 0;
@@ -31,7 +32,7 @@ void Application::init()
     // load Level
     level.load();
     Loader loader = Loader();
-    std::string levelXmlFilePath = levelXmlPath + "Level1.xml";
+    
     loader.load(levelXmlFilePath, &level, compositionsPath, scriptPath);
     graphics.init(&level);
     
diff --git a/level.cc b/level.cc
index bb3b82c..3437f42 100644
--- a/level.cc
+++ b/level.cc
@@ -1,11 +1,13 @@
 #include "level.hh"
+#include "loader.hh"
 #include <string>
 
-Level::Level(std::string heightmapFilePath){
+Level::Level(std::string heightmapFilePath, std::string xmlFilePath){
     this->terrain = Terrain(heightmapFilePath);
     // default value
     skydomeSize = 50.0f;
     physics = Physics();
+    this->xmlFilePath = xmlFilePath;
 }
 
 Level::Level() {
@@ -162,6 +164,12 @@ void Level::deleteObject(int objectIndex){
     }
 }
 
+void Level::resetPlayer(){
+    Loader loader = Loader();
+    glm::vec3 newPosition = loader.reloadPlayerPosition(xmlFilePath, this);
+    //TODO cameraCenter.setPosition(newPosition);
+}
+
 void Level::setStrength(float strength) {
     this->strength = strength;
 }
diff --git a/level.hh b/level.hh
index 69b3412..4cbdf34 100644
--- a/level.hh
+++ b/level.hh
@@ -20,7 +20,7 @@ extern "C" {
 
 class Level {
     public:
-        Level(std::string heightmapFilePath);
+        Level(std::string heightmapFilePath, std::string xmlFilePath);
         Level();
         ~Level();
         void load();
@@ -55,6 +55,7 @@ class Level {
         void addTrigger(Trigger trigger);
         lua_State* getLuaState();
         Terrain* getTerrain();
+        void resetPlayer();
     private:
         lua_State* luaState=nullptr;
         std::vector<Object*> objects;
@@ -71,6 +72,7 @@ class Level {
         Terrain terrain;
         float skydomeSize;
         float strength;
+        std::string xmlFilePath;
 };
 
 #endif
diff --git a/loader.cc b/loader.cc
index 2c49802..0dd03e9 100644
--- a/loader.cc
+++ b/loader.cc
@@ -507,6 +507,38 @@ void Loader::load(std::string filePath, Level* level, std::string compositionsPa
     }//positionConstraints
 }
 
+
+
+glm::vec3 Loader::reloadPlayerPosition(std::string filePath, Level* level){
+    XMLDocument* doc = new XMLDocument();
+    const char* xmlFile = filePath.c_str();
+    doc->LoadFile(xmlFile);
+    if (doc->ErrorID()!=0){
+        printf("Could not open ObjectSetupXml!\n");
+        exit(-1);
+    }
+    //iterate over all compositions in Level.xml
+    XMLElement* thisComposition = doc->FirstChildElement("composition");
+    for(; thisComposition; thisComposition=thisComposition->NextSiblingElement("composition")){
+        int thisType = 0;
+        errorCheck(thisComposition->FirstChildElement("typeID")->QueryIntText(&thisType));
+        if (thisType == 20){
+            float compXPos, compYOffset, compZPos;
+            errorCheck(thisComposition->FirstChildElement("xPos")->QueryFloatText(&compXPos));
+            errorCheck(thisComposition->FirstChildElement("yOffset")->QueryFloatText(&compYOffset));
+            errorCheck(thisComposition->FirstChildElement("zPos")->QueryFloatText(&compZPos));
+            compYOffset += level->getTerrain()->getHeightmap()[int(compXPos-0.5+0.5*level->getTerrain()->getHeightmapHeight())]
+                                                                        [int(compZPos-0.5+0.5*level->getTerrain()->getHeightmapWidth())];
+            glm::vec3 position = glm::vec3(compXPos, compYOffset, compZPos);
+            return position;
+        }
+    }
+    printf("Level.xml contains no player.");
+    exit(-1);
+}
+
+
+
 void Loader::errorCheck(XMLError error){
     if (error) {
         printf("XMLError: ");
diff --git a/loader.hh b/loader.hh
index 075d3be..cc0f44d 100644
--- a/loader.hh
+++ b/loader.hh
@@ -7,8 +7,9 @@
 class Loader {
     public:
         Loader();
-        void load(std::string filePath, Level* level, std::string compositionsPath, std::string scriptPath);
         void loadConfig(Application* application);
+        void load(std::string filePath, Level* level, std::string compositionsPath, std::string scriptPath);
+        glm::vec3 reloadPlayerPosition(std::string filePath, Level* level);
     private:
         void errorCheck(tinyxml2::XMLError error);
 };
diff --git a/terrain.cc b/terrain.cc
index b326ec2..acb0a11 100644
--- a/terrain.cc
+++ b/terrain.cc
@@ -82,6 +82,7 @@ void Terrain::makeTriangleMesh(){
     }
     
     ab->setDataElements(numVertices, abData);
+    delete abData;
     this->triangleMesh = std::make_shared<ACGL::OpenGL::VertexArrayObject>();
     this->triangleMesh->bind();
     this->triangleMesh->setMode(GL_TRIANGLE_STRIP);