Finished coolant mod trial

src/CMakeLists.txt

@@ -369,6 +369,7 @@ set(BASE_SOURCES
     object/interface/flying_object.h
     object/interface/fragile_object.h
     object/interface/interactive_object.h
+    object/interface/liquid_container_object.h
     object/interface/jet_flying_object.h
     object/interface/jostleable_object.h
     object/interface/movable_object.h
@@ -426,12 +427,15 @@ set(BASE_SOURCES
     object/subclass/base_robot.h
     object/subclass/base_vehicle.cpp
     object/subclass/base_vehicle.h
+    object/subclass/bucket.cpp
     object/subclass/exchange_post.cpp
     object/subclass/exchange_post.h
     object/subclass/shielder.cpp
     object/subclass/shielder.h
     object/subclass/static_object.cpp
     object/subclass/static_object.h
+    object/subclass/water_pump.cpp
+    object/subclass/water_pump.h
     object/task/task.cpp
     object/task/task.h
     object/task/taskadvance.cpp

src/common/error.h

@@ -77,6 +77,8 @@ enum Error
     ERR_RESEARCH_ENERGY   = 321,      //!<  more energy
     ERR_RESEARCH_TYPE     = 322,      //!<  the wrong type of battery
     ERR_RESEARCH_ALREADY  = 323,      //!<  research already done
+    ERR_RESEARCH_NEED_COOLANT = 324,  //!<  need coolant
+    ERR_RESEARCH_MORE_COOLANT = 325,  //!<  need more coolant
     ERR_ENERGY_NULL       = 330,      //!<  no energy underground
     ERR_ENERGY_LOW        = 331,      //!<  not enough energy
     ERR_ENERGY_EMPTY      = 332,      //!<  lack of metal

src/common/restext.cpp

@@ -567,6 +567,8 @@ void InitializeRestext()
     stringsObject[OBJECT_APOLLO4]      = TR("Remains of Apollo mission");
     stringsObject[OBJECT_APOLLO5]      = TR("Remains of Apollo mission");
     stringsObject[OBJECT_APOLLO2]      = TR("Lunar Roving Vehicle");
+    stringsObject[OBJECT_WATERPUMP]    = TR("Water pump");
+    stringsObject[OBJECT_BUCKET]       = TR("Bucket");
 
 
 
@@ -614,6 +616,8 @@ void InitializeRestext()
     stringsErr[ERR_RESEARCH_ENERGY] = TR("Not enough energy");
     stringsErr[ERR_RESEARCH_TYPE]   = TR("Inappropriate cell type");
     stringsErr[ERR_RESEARCH_ALREADY]= TR("Research program already performed");
+    stringsErr[ERR_RESEARCH_NEED_COOLANT] = TR("No coolant cell");
+    stringsErr[ERR_RESEARCH_MORE_COOLANT] = TR("Not enough coolant");
     stringsErr[ERR_ENERGY_NULL]     = TR("No energy in the subsoil");
     stringsErr[ERR_ENERGY_LOW]      = TR("Not enough energy yet");
     stringsErr[ERR_ENERGY_EMPTY]    = TR("No titanium to transform");

src/graphics/engine/camera.cpp

@@ -924,7 +924,8 @@ void CCamera::IsCollisionFix(Math::Vector &eye, Math::Vector lookat)
              type == OBJECT_ANT     ||
              type == OBJECT_SPIDER  ||
              type == OBJECT_BEE     ||
-             type == OBJECT_WORM )  continue;
+             type == OBJECT_WORM    ||
+             type == OBJECT_BUCKET  )  continue;
 
         Math::Sphere objSphere = obj->GetCameraCollisionSphere();
         Math::Vector objPos = objSphere.pos;

src/graphics/engine/oldmodelmanager.cpp

@@ -57,7 +57,18 @@ bool COldModelManager::LoadModel(const std::string& fileName, bool mirrored, int
         if (!stream.is_open())
             throw CModelIOException(std::string("Could not open file '") + fileName + "'");
 
+        std::string::size_type extension_index = fileName.find_last_of('.');
+        if (extension_index == std::string::npos)
+            throw CModelIOException(std::string("Filename '") + fileName + "' has no extension");
+
+        std::string extension = fileName.substr(extension_index + 1);
+
+        if (extension == "mod")
             model = ModelInput::Read(stream, ModelFormat::Old);
+        else if (extension == "txt")
+            model = ModelInput::Read(stream, ModelFormat::Text);
+        else
+            throw CModelIOException(std::string("Filename '") + fileName + "' has unknown extension");
     }
     catch (const CModelIOException& e)
     {

src/level/parser/parserparam.cpp

@@ -533,6 +533,8 @@ ObjectType CLevelParserParam::ToObjectType(std::string value)
     if (value == "Me"                ) return OBJECT_HUMAN;
     if (value == "Tech"              ) return OBJECT_TECH;
     if (value == "MissionController" ) return OBJECT_CONTROLLER;
+    if (value == "WaterPump"         ) return OBJECT_WATERPUMP;
+    if (value == "Bucket"            ) return OBJECT_BUCKET;
     return static_cast<ObjectType>(Cast<int>(value, "object"));
 }
 
@@ -730,6 +732,8 @@ const std::string CLevelParserParam::FromObjectType(ObjectType value)
     if (value == OBJECT_HUMAN       ) return "Me";
     if (value == OBJECT_TECH        ) return "Tech";
     if (value == OBJECT_CONTROLLER  ) return "MissionController";
+    if (value == OBJECT_WATERPUMP   ) return "WaterPump";
+    if (value == OBJECT_BUCKET      ) return "Bucket";
     return boost::lexical_cast<std::string>(static_cast<int>(value));
 }
 

src/object/auto/autoresearch.cpp

@@ -33,6 +33,8 @@
 #include "object/old_object.h"
 
 #include "object/interface/powered_object.h"
+#include "object/interface/liquid_container_object.h"
+#include "object/interface/slotted_object.h"
 
 #include "sound/sound.h"
 
@@ -127,6 +129,12 @@ Error CAutoResearch::StartAction(int param)
     {
         return ERR_RESEARCH_ENERGY;
     }
+    CObject* coolantObj = dynamic_cast<CSlottedObject*>(m_object)->GetSlotContainedObject(0);
+    if (coolantObj == nullptr || !coolantObj->Implements(ObjectInterfaceType::LiquidContainer))
+        return ERR_RESEARCH_NEED_COOLANT;
+    CLiquidContainerObject *coolantAsLiq = dynamic_cast<CLiquidContainerObject*>(coolantObj);
+    if (coolantAsLiq->GetLiquidAmount() < 1.0f || coolantAsLiq->GetLiquidType() != LiquidType::WATER)
+        return ERR_RESEARCH_MORE_COOLANT;
 
     float time = SEARCH_TIME;
     if ( m_research == RESEARCH_TANK   )  time *= 0.3f;
@@ -221,7 +229,11 @@ bool CAutoResearch::EventProcess(const Event &event)
         FireStopUpdate(m_progress, true);  // flashes
         if ( m_progress < 1.0f )
         {
-            if ( m_object->GetPower() == nullptr || !m_object->GetPower()->Implements(ObjectInterfaceType::PowerContainer) )  // more battery?
+            CObject* coolantObj = dynamic_cast<CSlottedObject*>(m_object)->GetSlotContainedObject(0);
+
+            if ( m_object->GetPower() == nullptr || !m_object->GetPower()->Implements(ObjectInterfaceType::PowerContainer)  // more battery?
+              || coolantObj == nullptr || !coolantObj->Implements(ObjectInterfaceType::LiquidContainer) // coolant cell removed?
+              || dynamic_cast<CLiquidContainerObject*>(coolantObj)->GetLiquidType() != LiquidType::WATER)
             {
                 SetBusy(false);
                 UpdateInterface();
@@ -233,6 +245,7 @@ bool CAutoResearch::EventProcess(const Event &event)
             }
             power = dynamic_cast<CPowerContainerObject*>(m_object->GetPower());
             power->SetEnergyLevel(1.0f-m_progress);
+            dynamic_cast<CLiquidContainerObject*>(coolantObj)->SetLiquid(LiquidType::WATER, 1.0f - m_progress);
 
             if ( m_lastParticle+m_engine->ParticleAdapt(0.05f) <= m_time )
             {

src/object/interface/liquid_container_object.h

@@ -0,0 +1,56 @@
+/*
+ * This file is part of the Colobot: Gold Edition source code
+ * Copyright (C) 2001-2018, Daniel Roux, EPSITEC SA & TerranovaTeam
+ * http://epsitec.ch; http://colobot.info; http://github.com/colobot
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see http://gnu.org/licenses
+ */
+
+#pragma once
+
+#include "object/object_interface_type.h"
+#include <assert.h>
+
+enum class LiquidType {
+    EMPTY,
+    WATER
+};
+
+/**
+ * \class CLiquidContainerObject
+ * \brief Interface for buckets
+ */
+class CLiquidContainerObject
+{
+protected:
+    LiquidType m_liquidType = LiquidType::EMPTY;
+    float m_liquidAmount = 0.0f;
+public:
+    explicit CLiquidContainerObject(ObjectInterfaceTypes& types)
+    {
+        types[static_cast<int>(ObjectInterfaceType::LiquidContainer)] = true;
+    }
+    virtual ~CLiquidContainerObject()
+    {}
+
+    void SetLiquid(LiquidType type, float level) {
+        assert(level >= 0.0f && level <= 1.0f);
+        assert(type != LiquidType::EMPTY || level == 0.0f);
+        m_liquidType = (level == 0.0f ? LiquidType::EMPTY : type);
+        m_liquidAmount = level;
+    }
+
+    LiquidType GetLiquidType() const {return m_liquidType;}
+    float GetLiquidAmount() const {return m_liquidAmount;}
+};

src/object/interface/slotted_object.h

@@ -0,0 +1,53 @@
+/*
+ * This file is part of the Colobot: Gold Edition source code
+ * Copyright (C) 2001-2018, Daniel Roux, EPSITEC SA & TerranovaTeam
+ * http://epsitec.ch; http://colobot.info; http://github.com/colobot
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see http://gnu.org/licenses
+ */
+
+#pragma once
+
+#include "object/object_interface_type.h"
+#include "math/vector.h"
+
+class CObject;
+
+/**
+ * \class CSlottedObject
+ * \brief Interface for objects that hold other objects
+ */
+class CSlottedObject
+{
+public:
+    explicit CSlottedObject(ObjectInterfaceTypes& types)
+    {
+        types[static_cast<int>(ObjectInterfaceType::Slotted)] = true;
+    }
+    virtual ~CSlottedObject()
+    {}
+
+    //! Get number of slots. Valid slot numbers are 0 up to GetNumSlots()-1. Using invalid slot numbers in the other functions will crash the game.
+    virtual int GetNumSlots() = 0;
+    //! Get relative position of a slot.
+    virtual Math::Vector GetSlotPosition(int slotNum) = 0;
+    //! Get relative angle (in radians) where robot should be positioned when inserting into a slot.
+    virtual float GetSlotAngle(int slotNum) = 0;
+    //! Get the maximum angular distance from the ideal angle (in radians) where robot should be positioned when inserting into a slot.
+    virtual float GetSlotAcceptanceAngle(int slotNum) = 0;
+    //! Get object contained in a slot.
+    virtual CObject *GetSlotContainedObject(int slotNum) = 0;
+    //! Set object contained in a slot.
+    virtual void SetSlotContainedObject(int slotNum, CObject *object) = 0;
+};

src/object/object.h

@@ -211,6 +211,7 @@ public:
     //! \todo It will work like this for now but later I'd like to refactor this to something more manageable ~krzys_h
     virtual bool IsBulletWall() { return false; }
 
+
 protected:
     //! Transform crash sphere by object's world matrix
     virtual void TransformCrashSphere(Math::Sphere& crashSphere) = 0;

src/object/object_factory.cpp

@@ -46,6 +46,7 @@
 #include "object/subclass/base_building.h"
 #include "object/subclass/base_robot.h"
 #include "object/subclass/exchange_post.h"
+#include "object/subclass/water_pump.h"
 #include "object/subclass/shielder.h"
 #include "object/subclass/static_object.h"
 
@@ -87,6 +88,13 @@ CObjectUPtr CObjectFactory::CreateObject(const ObjectCreateParams& params)
         case OBJECT_INFO:
             return CExchangePost::Create(params, m_oldModelManager, m_engine);
 
+        case OBJECT_WATERPUMP:
+            return CreateObjectWaterPump(params, m_oldModelManager, m_modelManager, m_engine);
+
+        case OBJECT_BUCKET:
+            std::unique_ptr<CObject> CreateObjectBucket(const ObjectCreateParams&, Gfx::COldModelManager*, Gfx::CEngine*);
+            return CreateObjectBucket(params, m_oldModelManager, m_engine);
+
         case OBJECT_PORTICO:
         case OBJECT_BASE:
         case OBJECT_DERRICK:

src/object/object_factory.h

@@ -45,6 +45,8 @@ struct ObjectCreateParams;
 
 using CObjectUPtr = std::unique_ptr<CObject>;
 
+std::unique_ptr<CObject> CreateObjectBucket(const ObjectCreateParams &params, Gfx::COldModelManager *modelManager, Gfx::CEngine *graphicsEngine);
+
 class CObjectFactory
 {
 public:

src/object/object_interface_type.h

@@ -54,6 +54,8 @@ enum class ObjectInterfaceType
     Shielded, //!< objects that can be destroyed after the shield goes down to 0
     ShieldedAutoRegen, //!< shielded objects with auto shield regeneration
     Old, //!< old objects, TODO: remove once no longer necessary
+    LiquidContainer, //!< liquid container
+    Slotted, //!< objects that can carry other objects (in their gripper, power cell slot, or other slots)
     Max //!< maximum value (for getting number of items in enum)
 };
 

src/object/object_type.h

@@ -230,6 +230,8 @@ enum ObjectType
     OBJECT_APOLLO4          = 903,  //!< ApolloModule
     OBJECT_APOLLO5          = 904,  //!< ApolloAntenna
     OBJECT_HOME1            = 910,  //!< Home
+    OBJECT_WATERPUMP        = 920,  //!< WaterPump
+    OBJECT_BUCKET           = 921,  //!< Bucket
 
     OBJECT_MAX              = 1000  //!< number of values
 };

src/object/old_object.cpp

@@ -747,7 +747,8 @@ void COldObject::SetType(ObjectType type)
         m_type == OBJECT_RESEARCH ||
         m_type == OBJECT_ENERGY   ||
         m_type == OBJECT_LABO     ||
-        m_type == OBJECT_NUCLEAR   )
+        m_type == OBJECT_NUCLEAR  ||
+        m_type == OBJECT_WATERPUMP)
     {
         m_implementedInterfaces[static_cast<int>(ObjectInterfaceType::Powered)] = true;
     }
@@ -772,6 +773,7 @@ void COldObject::SetType(ObjectType type)
          m_type == OBJECT_SPIDER   ||
          m_type == OBJECT_BEE      ||
          m_type == OBJECT_TEEN28    )
+        // TODO OBJECT_BUCKET
     {
         m_implementedInterfaces[static_cast<int>(ObjectInterfaceType::Damageable)] = true;
         m_implementedInterfaces[static_cast<int>(ObjectInterfaceType::Destroyable)] = true;
@@ -3204,13 +3206,15 @@ float COldObject::GetLightningHitProbability()
          m_type == OBJECT_NUCLEAR  ||
          m_type == OBJECT_PARA     ||
          m_type == OBJECT_SAFE     ||
-         m_type == OBJECT_HUSTON   )  // building?
+         m_type == OBJECT_HUSTON   ||
+         m_type == OBJECT_WATERPUMP)  // building?
     {
         return 1.0f;
     }
     if ( m_type == OBJECT_METAL    ||
          m_type == OBJECT_POWER    ||
-         m_type == OBJECT_ATOMIC   ) // resource?
+         m_type == OBJECT_ATOMIC   ||
+         m_type == OBJECT_BUCKET   ) // resource?
     {
         return 0.3f;
     }

src/object/subclass/base_building.cpp

@@ -18,6 +18,7 @@
  */
 
 #include "object/subclass/base_building.h"
+#include "object/interface/slotted_object.h"
 
 #include "common/make_unique.h"
 
@@ -47,6 +48,41 @@
 #include "object/auto/autotower.h"
 #include "object/auto/autovault.h"
 
+class CResearchLab : public CBaseBuilding, public CSlottedObject {
+public:
+    CResearchLab(int id)
+        : CBaseBuilding(id, OBJECT_RESEARCH)
+        , CSlottedObject(m_implementedInterfaces)
+    {
+
+    }
+
+    CObject *m_extraSlotObject = nullptr;
+
+    virtual int GetNumSlots() override {
+        return 1;
+    }
+    virtual Math::Vector GetSlotPosition(int slotNum) override {
+        assert(slotNum == 0);
+        return Math::Vector(-7.5f, 3.0f, 0.0f); // opposite the power cell slot
+    }
+    virtual float GetSlotAngle(int slotNum) override {
+        assert(slotNum == 0);
+        return Math::PI; // 180 degrees
+    }
+    virtual float GetSlotAcceptanceAngle(int slotNum) override {
+        assert(slotNum == 0);
+        return 45.0f*Math::PI/180.0f; // up to 45 degree offset is allowed, in either direction
+    }
+    virtual CObject *GetSlotContainedObject(int slotNum) override {
+        assert(slotNum == 0);
+        return m_extraSlotObject;
+    }
+    virtual void SetSlotContainedObject(int slotNum, CObject *object) override {
+        assert(slotNum == 0);
+        m_extraSlotObject = object;
+    }
+};
 
 CBaseBuilding::CBaseBuilding(int id, ObjectType type)
     : COldObject(id)
@@ -62,7 +98,7 @@ std::unique_ptr<CBaseBuilding> CBaseBuilding::Create(
     Gfx::COldModelManager* modelManager,
     Gfx::CEngine* engine)
 {
-    auto obj = MakeUnique<CBaseBuilding>(params.id, params.type);
+    auto obj = (params.type == OBJECT_RESEARCH ? MakeUnique<CResearchLab>(params.id) : MakeUnique<CBaseBuilding>(params.id, params.type));
 
     obj->SetTeam(params.team);
 
@@ -272,7 +308,7 @@ std::unique_ptr<CBaseBuilding> CBaseBuilding::Create(
 
     if ( params.type == OBJECT_RESEARCH )
     {
-        modelManager->AddModelReference("search1.mod", false, rank, params.team);
+        modelManager->AddModelReference("search1_with_water.txt", false, rank, params.team);
         obj->SetPosition(params.pos);
         obj->SetRotationY(params.angle);
         obj->SetFloorHeight(0.0f);

src/object/subclass/bucket.cpp

@@ -0,0 +1,112 @@
+/*
+ * This file is part of the Colobot: Gold Edition source code
+ * Copyright (C) 2001-2020, Daniel Roux, EPSITEC SA & TerranovaTeam
+ * http://epsitec.ch; http://colobot.info; http://github.com/colobot
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see http://gnu.org/licenses
+ */
+
+#include "object/object.h"
+#include "object/old_object.h"
+#include "object/interface/liquid_container_object.h"
+
+#include "object/object_factory.h"
+
+#include "graphics/engine/engine.h"
+#include "graphics/engine/oldmodelmanager.h"
+
+#include "common/make_unique.h"
+
+#include "level/parser/parserexceptions.h"
+#include "level/parser/parserline.h"
+#include "level/parser/parserparam.h"
+
+#include "object/object_create_params.h"
+
+#include <boost/lexical_cast.hpp>
+
+class CBucket
+     : public COldObject
+     , public CLiquidContainerObject
+{
+    LiquidType m_displayedLiquidType = LiquidType::EMPTY;
+    float m_displayedLiquidAmount = -100; // force initial update
+public:
+    CBucket(int id)
+        : COldObject(id)
+        , CLiquidContainerObject(m_implementedInterfaces)
+    {
+        SetType(OBJECT_BUCKET);
+        m_implementedInterfaces[static_cast<int>(ObjectInterfaceType::Transportable)] = true;
+    }
+
+    bool EventProcess(const Event& event) override {
+        if (!COldObject::EventProcess(event))
+            return false;
+
+        if (event.type == EVENT_FRAME && (m_displayedLiquidType != m_liquidType || !Math::IsEqual(m_displayedLiquidAmount, m_liquidAmount, 0.003f))) {
+            UpdateTextureMapping();
+            m_displayedLiquidType = m_liquidType;
+            m_displayedLiquidAmount = m_liquidAmount;
+        }
+
+        return true;
+    }
+
+private:
+    void UpdateTextureMapping() {
+        Gfx::Material mat;
+        mat.diffuse = Gfx::Color(1.0f, 1.0f, 1.0f);  // white
+        mat.ambient = Gfx::Color(0.5f, 0.5f, 0.5f);
+
+        int type = static_cast<int>(m_liquidType) - 1;
+        if(type > 0) type--; // don't use a texture slot for EMPTY liquid type, just reuse whatever liquid comes first
+        float vcoord = (type + 0.5f) / 128.0f;
+
+        // Y coordinate ranges from 0 to 2.
+        // If m_liquidAmount is 0, u coordinate ranges from 0 to 0.5.
+        // If m_liquidAmount is 1, u coordinate ranges from 0.5 to 1.
+        // In any case, v is a constant depending on the liquid type.
+        // The highest u coordinate needs to be at the lowest Y coordinate.
+
+        m_engine->ChangeTextureMapping(m_objectPart[0].object,
+                                       mat, Gfx::ENG_RSTATE_PART3, "objects/liquid.png", "",
+                                       Gfx::ENG_TEX_MAPPING_X,
+                                       0.0f, vcoord, -0.25f, 0.5f + 0.5f*m_liquidAmount);
+    }
+};
+
+std::unique_ptr<CObject> CreateObjectBucket(const ObjectCreateParams &params, Gfx::COldModelManager *modelManager, Gfx::CEngine *graphicsEngine)
+{
+    std::unique_ptr<CBucket> newObj = MakeUnique<CBucket>(params.id);
+
+    int rootGraphObj = graphicsEngine->CreateObject();
+    graphicsEngine->SetObjectType(rootGraphObj, Gfx::ENG_OBJTYPE_FIX); // XXX: why is ENG_OBJTYPE_FIX used for movable objects? (this is the same as for powercells, titanium, etc)
+    newObj->SetObjectRank(0, rootGraphObj);
+    modelManager->AddModelCopy("bucket.txt", false, rootGraphObj);
+
+    newObj->SetPosition(params.pos);
+    newObj->SetRotationY(params.angle);
+
+    // standard settings for transportable objects
+    newObj->AddCrashSphere(CrashSphere(Math::Vector(0.0f, 1.0f, 0.0f), 1.0f, SOUND_BOUMm, 0.45f));
+    newObj->SetCameraCollisionSphere(Math::Sphere(Math::Vector(0.0f, 1.0f, 0.0f), 1.5f));
+    newObj->CreateShadowCircle(1.5f, 1.0f);
+    newObj->SetFloorHeight(0.0f);
+    newObj->FloorAdjust();
+
+    graphicsEngine->LoadAllTextures();
+
+    return newObj;
+}

src/object/subclass/water_pump.cpp

@@ -0,0 +1,162 @@
+/*
+ * This file is part of the Colobot: Gold Edition source code
+ * Copyright (C) 2001-2018, Daniel Roux, EPSITEC SA & TerranovaTeam
+ * http://epsitec.ch; http://colobot.info; http://github.com/colobot
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see http://gnu.org/licenses
+ */
+
+#include "object/subclass/water_pump.h"
+#include "object/interface/liquid_container_object.h"
+
+#include "common/make_unique.h"
+#include "common/regex_utils.h"
+
+#include "graphics/engine/oldmodelmanager.h" // XXX delete
+#include "graphics/model/model_manager.h"
+
+#include "level/parser/parserexceptions.h"
+#include "level/parser/parserline.h"
+#include "level/parser/parserparam.h"
+
+#include "object/object_create_params.h"
+
+#include "sound/sound.h"
+
+#include "ui/controls/interface.h"
+#include "ui/controls/list.h"
+#include "ui/controls/window.h"
+
+#include <boost/lexical_cast.hpp>
+
+class CWaterPump : public CBaseBuilding
+{
+public:
+    CWaterPump(int id)
+        : CBaseBuilding(id, OBJECT_WATERPUMP)
+    {
+        m_implementedInterfaces[static_cast<int>(ObjectInterfaceType::Powered)] = true;
+    }
+
+    void Write(CLevelParserLine* line) override;
+    void Read(CLevelParserLine* line) override;
+
+    using COldObject::SetAuto;
+};
+
+struct CAutoWaterPump : public CAuto
+{
+    CAutoWaterPump(CWaterPump* object) : CAuto(object) {}
+    ~CAutoWaterPump() {}
+
+    float cycle = 0.0f;
+
+    bool EventProcess(const Event &event) override {
+        CAuto::EventProcess(event);
+        if (event.type == EVENT_FRAME && !m_engine->GetPause()) {
+            CObject *powerCell = m_object->GetPower();
+            if (powerCell != nullptr) {
+
+                if (powerCell->Implements(ObjectInterfaceType::LiquidContainer)) {
+                    // test code
+                    CLiquidContainerObject *asPC = dynamic_cast<CLiquidContainerObject*>(powerCell);
+                    if (asPC->GetLiquidType() == LiquidType::WATER || asPC->GetLiquidType() == LiquidType::EMPTY) {
+                        float water = asPC->GetLiquidAmount();
+
+                        if (water < 1.0f)
+                        {
+                            // animation
+                            cycle = fmodf(cycle + event.rTime, 1.0f);
+                            if (cycle < 0.5f)
+                                m_object->SetPartPosition(1, Math::Vector(0.0f, 4.0f * cycle + 1.5f, 0.0f));
+                            else
+                                m_object->SetPartPosition(1, Math::Vector(0.0f, 4.0f - (4.0f * cycle) + 1.5f, 0.0f));
+                        }
+
+                        water = water + (0.2f * event.rTime);
+                        if(water > 1.0f) water = 1.0f;
+                        asPC->SetLiquid(LiquidType::WATER, water);
+                    }
+                }
+            }
+        }
+        return true; // XXX what does this mean?
+    }
+};
+
+std::unique_ptr<CObject> CreateObjectWaterPump(
+    const ObjectCreateParams& params,
+    Gfx::COldModelManager* oldModelManager, // XXX remove
+    Gfx::CModelManager* modelManager,
+    Gfx::CEngine* engine)
+{
+    auto obj = MakeUnique<CWaterPump>(params.id);
+
+    obj->SetTeam(params.team);
+
+    /*static int info1_base_rank = -1;
+    if (info1_base_rank == -1) {
+        Gfx::CModel& model_info1 = modelManager->GetModel("info1");
+        info1_base_rank = engine->CreateBaseObject();
+        engine->AddBaseObjTriangles(info1_base_rank, model_info1.GetMesh("main")->GetTriangles());
+    }*/
+
+    int rank = engine->CreateObject();
+    engine->SetObjectType(rank, Gfx::ENG_OBJTYPE_FIX);  // it is a stationary object
+    obj->SetObjectRank(0, rank);
+    //engine->SetObjectBaseRank(rank, info1_base_rank);
+    oldModelManager->AddModelReference("waterpump.txt", false, rank);
+    obj->SetPosition(params.pos);
+    obj->SetRotationY(params.angle);
+    obj->SetFloorHeight(0.0f);
+
+    rank = engine->CreateObject();
+    engine->SetObjectType(rank, Gfx::ENG_OBJTYPE_DESCENDANT);
+    obj->SetObjectRank(1, rank);
+    obj->SetObjectParent(1, 0);
+    //engine->SetObjectBaseRank(rank, info1_base_rank);
+    oldModelManager->AddModelReference("info2.mod", false, rank);
+    obj->SetPartPosition(1, Math::Vector(0.0f, 1.0f, 0.0f));
+    obj->SetPartRotationY(1, 0.0f);
+
+    obj->AddCrashSphere(CrashSphere(Math::Vector(0.0f,  3.0f, 0.0f), 6.0f, SOUND_BOUMm, 0.45f));
+    obj->AddCrashSphere(CrashSphere(Math::Vector(7.0f,  1.0f, 0.0f), 1.5f, SOUND_BOUMm, 0.45f));
+    obj->SetCameraCollisionSphere(Math::Sphere(Math::Vector(0.0f, 5.0f, 0.0f), 6.0f));
+    obj->SetPowerPosition(Math::Vector(7.0, 2.5, 0.0));
+
+    obj->CreateShadowCircle(8.0f, 1.0f);
+
+    Math::Vector pos = obj->GetPosition();
+    pos.y += params.height;
+    obj->SetPosition(pos);  // to display the shadows immediately
+
+    auto objAuto = MakeUnique<CAutoWaterPump>(obj.get());
+    objAuto->Init();
+    obj->SetAuto(std::move(objAuto));
+
+    engine->LoadAllTextures();
+
+    return obj;
+}
+
+void CWaterPump::Write(CLevelParserLine* line)
+{
+    CBaseBuilding::Write(line);
+}
+
+void CWaterPump::Read(CLevelParserLine* line)
+{
+    CBaseBuilding::Read(line);
+}
+

src/object/subclass/water_pump.h

@@ -0,0 +1,81 @@
+/*
+ * This file is part of the Colobot: Gold Edition source code
+ * Copyright (C) 2001-2018, Daniel Roux, EPSITEC SA & TerranovaTeam
+ * http://epsitec.ch; http://colobot.info; http://github.com/colobot
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see http://gnu.org/licenses
+ */
+
+
+#pragma once
+
+#include "object/subclass/base_building.h"
+
+#include "object/auto/auto.h"
+
+#include <string>
+#include <vector>
+
+#include <boost/optional.hpp>
+
+struct ObjectCreateParams;
+
+namespace Gfx
+{
+class COldModelManager;
+class CModelManager;
+class CEngine;
+}
+
+std::unique_ptr<CObject> CreateObjectWaterPump(
+        const ObjectCreateParams& params,
+        Gfx::COldModelManager* oldModelManager,
+        Gfx::CModelManager* modelManager,
+        Gfx::CEngine* engine);
+
+// TODO: integrate this with CExchangePost
+/*class CAutoInfo : public CAuto
+{
+public:
+    CAutoInfo(CExchangePost* object);
+    ~CAutoInfo();
+
+    void        DeleteObject(bool all=false) override;
+
+    void        Init() override;
+    void        Start(int param) override;
+    bool        EventProcess(const Event &event) override;
+    Error       GetError() override;
+
+    bool        CreateInterface(bool select) override;
+
+    bool        Write(CLevelParserLine* line) override;
+    bool        Read(CLevelParserLine* line) override;
+
+protected:
+    void        UpdateInterface(float rTime);
+    void        UpdateList();
+    void        UpdateListVirus();
+
+protected:
+    CExchangePost*  m_exchangePost;
+    enum class Phase : unsigned int;
+    Phase           m_phase;
+    float           m_progress;
+    float           m_speed;
+    float           m_timeVirus;
+    float           m_lastParticle;
+    Math::Vector    m_goal;
+    bool            m_lastVirus;
+};*/

src/object/task/taskgoto.cpp

@@ -1274,6 +1274,16 @@ bool CTaskGoto::GetHotPoint(CObject *pObj, Math::Vector &pos,
         return true;
     }
 
+    if ( type == OBJECT_WATERPUMP )
+    {
+        mat = pObj->GetWorldMatrix(0);
+        pos.x += 7.0f;
+        if ( bTake && distance != 0.0f )  suppl = 2.5f;
+        if ( bTake )  pos.x += TAKE_DIST+TAKE_DIST_OTHER+distance+suppl;
+        pos = Transform(*mat, pos);
+        return true;
+    }
+
     if ( type == OBJECT_ENERGY )
     {
         mat = pObj->GetWorldMatrix(0);

src/object/task/taskmanip.cpp

@@ -33,11 +33,14 @@
 #include "object/interface/carrier_object.h"
 #include "object/interface/powered_object.h"
 #include "object/interface/transportable_object.h"
+#include "object/interface/slotted_object.h"
 
 #include "physics/physics.h"
 
 #include "sound/sound.h"
 
+const int INVALID_SLOT = -1;
+const int ENERGY_CELL_SLOT = -2;
 
 //?const float MARGIN_FRONT     = 2.0f;
 //?const float MARGIN_BACK      = 2.0f;
@@ -263,6 +266,16 @@ void CTaskManip::InitAngle()
     }
 }
 
+static bool ObjectSlotOccupied(CObject *obj, int slotnum) {
+    if(slotnum == ENERGY_CELL_SLOT)
+        return ObjectHasPowerCell(obj);
+    else {
+        if (!obj->Implements(ObjectInterfaceType::Slotted))
+            return false;
+        return dynamic_cast<CSlottedObject*>(obj)->GetSlotContainedObject(slotnum) != nullptr;
+    }
+}
+
 // Assigns the goal was achieved.
 
 Error CTaskManip::Start(TaskManipOrder order, TaskManipArm arm)
@@ -393,7 +406,8 @@ Error CTaskManip::Start(TaskManipOrder order, TaskManipArm arm)
         if ( m_arm == TMA_FFRONT )
         {
             front = SearchTakeFrontObject(true, fPos, fDist, fAngle);
-            other = SearchOtherObject(true, oPos, oDist, oAngle, oHeight);
+            int slotNum;
+            other = SearchOtherObject(true, oPos, oDist, oAngle, oHeight, slotNum);
 
             if ( front != nullptr && fDist < oDist )
             {
@@ -403,7 +417,7 @@ Error CTaskManip::Start(TaskManipOrder order, TaskManipArm arm)
             }
             else if ( other != nullptr && oDist < fDist )
             {
-                if (! ObjectHasPowerCell(other)) return ERR_MANIP_NIL;
+                if (! ObjectSlotOccupied(other, slotNum)) return ERR_MANIP_NIL;
                 m_targetPos = oPos;
                 m_angle = oAngle;
                 m_height = oHeight;
@@ -436,8 +450,9 @@ Error CTaskManip::Start(TaskManipOrder order, TaskManipArm arm)
     {
         if ( m_arm == TMA_FFRONT )
         {
-            other = SearchOtherObject(true, oPos, oDist, oAngle, oHeight);
+            int slotNum;
-            if (other != nullptr && !ObjectHasPowerCell(other))
+            other = SearchOtherObject(true, oPos, oDist, oAngle, oHeight, slotNum);
+            if (other != nullptr && !ObjectSlotOccupied(other, slotNum))
             {
                 m_targetPos = oPos;
                 m_angle = oAngle;
@@ -868,8 +883,10 @@ CObject* CTaskManip::SearchTakeBackObject(bool bAdvance, Math::Vector &pos,
 
 CObject* CTaskManip::SearchOtherObject(bool bAdvance, Math::Vector &pos,
                                        float &distance, float &angle,
-                                       float &height)
+                                       float &height, int &slotNumOut)
 {
+    slotNumOut = INVALID_SLOT;
+
     Math::Matrix*   mat;
     float       iAngle, oAngle, oLimit, aLimit, dLimit;
 
@@ -901,15 +918,11 @@ CObject* CTaskManip::SearchOtherObject(bool bAdvance, Math::Vector &pos,
         if ( pObj == m_object )  continue;  // yourself?
 
         ObjectType type = pObj->GetType();
-        if ( !pObj->Implements(ObjectInterfaceType::Powered) )  continue;
+        if ( pObj->Implements(ObjectInterfaceType::Powered) ) {
 
             CObject* power = dynamic_cast<CPoweredObject*>(pObj)->GetPower();
-        if (power != nullptr)
+            if (power == nullptr || (!power->GetLock() && power->GetScaleY() == 1.0f))
             {
-            if (power->GetLock())  continue;
-            if (power->GetScaleY() != 1.0f)  continue;
-        }
-
                 mat = pObj->GetWorldMatrix(0);
                 Math::Vector oPos = Transform(*mat, dynamic_cast<CPoweredObject*>(pObj)->GetPowerPosition());
 
@@ -931,6 +944,10 @@ CObject* CTaskManip::SearchOtherObject(bool bAdvance, Math::Vector &pos,
                 {
                     oLimit = 45.0f*Math::PI/180.0f;
                 }
+                else if ( type == OBJECT_WATERPUMP )
+                {
+                    oLimit = 3; //Math::PI doesn't work
+                }
                 else
                 {
                     oLimit = 45.0f*Math::PI/180.0f;
@@ -938,8 +955,8 @@ CObject* CTaskManip::SearchOtherObject(bool bAdvance, Math::Vector &pos,
                 }
                 oAngle = Math::NormAngle(oAngle);  // 0..2*Math::PI
                 angle = Math::RotateAngle(iPos.x-oPos.x, oPos.z-iPos.z);  // CW !
-        if ( !Math::TestAngle(angle, oAngle-oLimit, oAngle+oLimit) )  continue;
+                if ( Math::TestAngle(angle, oAngle-oLimit, oAngle+oLimit) )
-
+                {
                     distance = fabs(Math::Distance(oPos, iPos)-TAKE_DIST);
                     if ( distance <= dLimit )
                     {
@@ -949,10 +966,51 @@ CObject* CTaskManip::SearchOtherObject(bool bAdvance, Math::Vector &pos,
                             Math::Vector powerPos = dynamic_cast<CPoweredObject*>(pObj)->GetPowerPosition();
                             height = powerPos.y;
                             pos = oPos;
+                            slotNumOut = ENERGY_CELL_SLOT;
                             return pObj;
                         }
                     }
                 }
+            }
+        }
+
+        if (pObj->Implements(ObjectInterfaceType::Slotted)) {
+            CSlottedObject *obj = dynamic_cast<CSlottedObject*>(pObj);
+            int slotNum = obj->GetNumSlots();
+            for (int slot = 0; slot < slotNum; slot++) {
+                mat = pObj->GetWorldMatrix(0);
+                Math::Vector worldSlotPos = Transform(*mat, obj->GetSlotPosition(slot));
+                // TODO: check GetLock and GetScaleY, like for energy cell slot
+
+                CObject *objectInSlot = obj->GetSlotContainedObject(slot);
+                if (objectInSlot != nullptr && (objectInSlot->GetLock() || objectInSlot->GetScaleY() != 1.0f))
+                    continue;
+
+                // The robot must be in the correct angle relative to the slot (it can't be on the other side of the object)
+                float angleFromObjectToRobot = Math::RotateAngle(iPos.x-worldSlotPos.x, worldSlotPos.z-iPos.z);  // CW !
+                float objectAngleOffsetLimit = obj->GetSlotAcceptanceAngle(slot);
+                float objectIdealAngle = obj->GetSlotAngle(slot);
+
+                if ( Math::TestAngle(angleFromObjectToRobot, objectIdealAngle - objectAngleOffsetLimit, objectIdealAngle + objectAngleOffsetLimit) ) {
+                    distance = fabs(Math::Distance(worldSlotPos, iPos)-TAKE_DIST);
+                    // The robot must be close enough to the slot
+                    if ( distance <= dLimit )
+                    {
+                        // The slot must be in the correct position relative to the robot (the robot must be facing towards the slot, not sideways or away)
+                        angle = Math::RotateAngle(worldSlotPos.x-iPos.x, iPos.z-worldSlotPos.z);  // CW !
+                        if ( Math::TestAngle(angle, iAngle-aLimit, iAngle+aLimit) )
+                        {
+                            Math::Vector powerPos = obj->GetSlotPosition(slot);
+                            height = powerPos.y;
+                            pos = worldSlotPos;
+                            slotNumOut = slot;
+                            return pObj;
+                        }
+                    }
+                }
+            }
+        }
+    }
 
     distance = 1000000.0f;
     angle = 0.0f;
@@ -1090,11 +1148,15 @@ bool CTaskManip::TransporterTakeObject()
     {
         Math::Vector pos;
         float dist = 0.0f, angle = 0.0f;
-        CObject* other = SearchOtherObject(false, pos, dist, angle, m_height);
+        int slotNum;
+        CObject* other = SearchOtherObject(false, pos, dist, angle, m_height, slotNum);
         if (other == nullptr)  return false;
+        assert(slotNum != INVALID_SLOT);
+        CObject *cargo;
+        if (slotNum == ENERGY_CELL_SLOT) {
             assert(other->Implements(ObjectInterfaceType::Powered));
 
-        CObject* cargo = dynamic_cast<CPoweredObject*>(other)->GetPower();
+            cargo = dynamic_cast<CPoweredObject*>(other)->GetPower();
             if (cargo == nullptr)  return false;  // the other does not have a battery?
             assert(cargo->Implements(ObjectInterfaceType::Transportable));
 
@@ -1103,6 +1165,19 @@ bool CTaskManip::TransporterTakeObject()
             dynamic_cast<CPoweredObject*>(other)->SetPower(nullptr);
             dynamic_cast<CTransportableObject*>(cargo)->SetTransporter(m_object);
             dynamic_cast<CTransportableObject*>(cargo)->SetTransporterPart(3);  // takes with the hand
+        } else {
+            assert(other->Implements(ObjectInterfaceType::Slotted));
+
+            cargo = dynamic_cast<CSlottedObject*>(other)->GetSlotContainedObject(slotNum);
+            if (cargo == nullptr)  return false;  // the other does not have a battery?
+            assert(cargo->Implements(ObjectInterfaceType::Transportable));
+
+            m_cargoType = cargo->GetType();
+
+            dynamic_cast<CSlottedObject*>(other)->SetSlotContainedObject(slotNum, nullptr);
+            dynamic_cast<CTransportableObject*>(cargo)->SetTransporter(m_object);
+            dynamic_cast<CTransportableObject*>(cargo)->SetTransporterPart(3);  // takes with the hand
+        }
 
         pos = Math::Vector(4.7f, 0.0f, 0.0f);  // relative to the hand (lem4)
         cargo->SetPosition(pos);
@@ -1189,23 +1264,38 @@ bool CTaskManip::TransporterDeposeObject()
         Math::Vector pos;
         float angle = 0.0f, dist = 0.0f;
 
-        CObject* other = SearchOtherObject(false, pos, dist, angle, m_height);
+        int slotNum;
+        CObject* other = SearchOtherObject(false, pos, dist, angle, m_height, slotNum);
         if (other == nullptr)  return false;
+        assert(slotNum != INVALID_SLOT);
+        if (slotNum == ENERGY_CELL_SLOT) {
             assert(other->Implements(ObjectInterfaceType::Powered));
 
             CObject* cargo = dynamic_cast<CPoweredObject*>(other)->GetPower();
             if (cargo != nullptr)  return false;  // the other already has a battery?
+        } else {
+            assert(other->Implements(ObjectInterfaceType::Slotted));
+            CObject* cargo = dynamic_cast<CSlottedObject*>(other)->GetSlotContainedObject(slotNum);
+            if (cargo != nullptr)  return false;  // the other already has a battery?
+        }
 
-        cargo = m_object->GetCargo();
+        CObject *cargo = m_object->GetCargo();
         if (cargo == nullptr)  return false;
         assert(cargo->Implements(ObjectInterfaceType::Transportable));
 
         m_cargoType = cargo->GetType();
 
+        if (slotNum == ENERGY_CELL_SLOT)
             dynamic_cast<CPoweredObject*>(other)->SetPower(cargo);
+        else
+            dynamic_cast<CSlottedObject*>(other)->SetSlotContainedObject(slotNum, cargo);
         dynamic_cast<CTransportableObject*>(cargo)->SetTransporter(other);
 
+        // TODO: isn't this wrong? PowerPosition (and SlotContainedPosition) is an object-local position.
+        if (slotNum == ENERGY_CELL_SLOT)
             cargo->SetPosition(dynamic_cast<CPoweredObject*>(other)->GetPowerPosition());
+        else
+            cargo->SetPosition(dynamic_cast<CSlottedObject*>(other)->GetSlotPosition(slotNum));
         cargo->SetRotationY(0.0f);
         cargo->SetRotationX(0.0f);
         cargo->SetRotationZ(0.0f);

src/object/task/taskmanip.h

@@ -73,7 +73,7 @@ protected:
     CObject*    SearchTakeUnderObject(Math::Vector &pos, float dLimit);
     CObject*    SearchTakeFrontObject(bool bAdvance, Math::Vector &pos, float &distance, float &angle);
     CObject*    SearchTakeBackObject(bool bAdvance, Math::Vector &pos, float &distance, float &angle);
-    CObject*    SearchOtherObject(bool bAdvance, Math::Vector &pos, float &distance, float &angle, float &height);
+    CObject*    SearchOtherObject(bool bAdvance, Math::Vector &pos, float &distance, float &angle, float &height, int &slotNumOut);
     bool        TransporterTakeObject();
     bool        TransporterDeposeObject();
     bool        IsFreeDeposeObject(Math::Vector pos);

src/physics/physics.cpp

@@ -2725,7 +2725,8 @@ bool CPhysics::ExploOther(ObjectType iType,
             oType == OBJECT_NUCLEAR  ||
             oType == OBJECT_PARA     ||
             oType == OBJECT_SAFE     ||
-            oType == OBJECT_HUSTON    )  // building?
+            oType == OBJECT_HUSTON   ||
+            oType == OBJECT_WATERPUMP)  // building?
         {
             assert(pObj->Implements(ObjectInterfaceType::Damageable));
             // TODO: implement "killer"?

src/script/cbottoken.cpp

@@ -115,6 +115,8 @@ const char* GetObjectName(ObjectType type)
     if ( type == OBJECT_BEE         )  return "AlienWasp";
     if ( type == OBJECT_WORM        )  return "AlienWorm";
     if ( type == OBJECT_RUINmobilew1)  return "Wreck";
+    if ( type == OBJECT_WATERPUMP   )  return "WaterPump";
+    if ( type == OBJECT_BUCKET      )  return "Bucket";
     return "";
 }
 
@@ -213,6 +215,7 @@ std::string GetHelpFilename(ObjectType type)
     if ( type == OBJECT_BEE         )  helpfile = "object/wasp";
     if ( type == OBJECT_WORM        )  helpfile = "object/worm";
     if ( type == OBJECT_RUINmobilew1)  helpfile = "object/wreck";
+    // XXX WaterPump
 
     if (helpfile.empty())
         return "";

tools/blender-scripts.py

@@ -8,7 +8,7 @@
 bl_info = {
     "name": "Colobot Model Format (.txt)",
     "author": "TerranovaTeam",
-    "version": (0, 0, 2),
+    "version": (0, 0, 3),
     "blender": (2, 6, 4),
     "location": "File > Export > Colobot (.txt)",
     "description": "Export Colobot Model Format (.txt)",
@@ -35,7 +35,7 @@ FUZZY_TOLERANCE = 1e-5
 
 class ColobotError(Exception):
     """Exception in I/O operations"""
-    def __init__(self, value):
+    def __init__(self, value, errcode=None):
         self.value = value
     def __str__(self):
         return repr(self.value)
@@ -199,6 +199,7 @@ def write_colobot_model(filename, model):
         file.write('tex1 ' + t.mat.tex1 + '\n')
         file.write('tex2 ' + t.mat.tex2 + '\n')
         file.write('var_tex2 ' + ( 'Y' if t.mat.var_tex2 else 'N' + '\n' ) )
+        if model.version == 1:
             file.write('lod_level ' + str(t.lod_level) + '\n')
         file.write('state ' + str(t.mat.state) + '\n')
         file.write('\n')
@@ -281,8 +282,8 @@ def read_colobot_model(filename):
     if (tokens[0] != 'version'):
         raise ColobotError("Invalid header", "version")
     model.version = int(tokens[1])
-    if (model.version != 1):
+    if (model.version != 1 and model.version != 2):
-        raise ColobotError("Unknown model file version")
+        raise ColobotError("Unknown model file version "+str(model.version))
 
     tokens, index = token_next_line(lines, index)
     if (tokens[0] != 'total_triangles'):
@@ -329,10 +330,13 @@ def read_colobot_model(filename):
             raise ColobotError("Invalid triangle", "var_tex2")
         t.mat.var_tex2 = tokens[1] == 'Y'
 
+        if (model.version == 1):
             tokens, index = token_next_line(lines, index)
             if (tokens[0] != 'lod_level'):
                 raise ColobotError("Invalid triangle", "lod_level")
             t.lod_level = int(tokens[1])
+        else:
+            t.lod_level = 0 # constant
 
         tokens, index = token_next_line(lines, index)
         if (tokens[0] != 'state'):
@@ -384,9 +388,9 @@ def append_obj_to_colobot_model(obj, model, scene, defaults):
         t.mat.specular[3] = mat.specular_alpha
 
         if (mat.texture_slots[0] != None):
-            t.tex1 = bpy.path.basename(mat.texture_slots[0].texture.image.filepath)
+            t.mat.tex1 = bpy.path.basename(mat.texture_slots[0].texture.image.filepath)
         if (mat.texture_slots[1] != None):
-            t.tex2 = bpy.path.basename(mat.texture_slots[1].texture.image.filepath)
+            t.mat.tex2 = bpy.path.basename(mat.texture_slots[1].texture.image.filepath)
 
         t.var_tex2 = mat.get('var_tex2', defaults['var_tex2'])
         t.state = mat.get('state', defaults['state'])
@@ -589,7 +593,7 @@ class ExportColobotDialog(bpy.types.Operator):
             write_colobot_model(EXPORT_FILEPATH, model)
 
         except ColobotError as e:
-            self.report({'ERROR'}, e.args.join(": "))
+            self.report({'ERROR'}, ": ".join(e.args))
             return {'FINISHED'}
 
         self.report({'INFO'}, 'Export OK')
@@ -665,7 +669,7 @@ class ImportColobotDialog(bpy.types.Operator):
                     obj.layers = layers
 
         except ColobotError as e:
-            self.report({'ERROR'}, e.args.join(": "))
+            self.report({'ERROR'}, ": ".join(e.args))
             return {'FINISHED'}
 
         self.report({'INFO'}, 'Import OK')