1 files changed, 835 insertions, 0 deletions

diff --git a/enginecore.cpp b/enginecore.cpp
new file mode 100644
index 0000000..047511e
--- /dev/null
+++ b/enginecore.cpp
@@ -0,0 +1,835 @@
+#include "enginecore.h"
+
+DObject::DObject(){};
+
+DObject::DObject(string filename, double newx, double newy)
+{
+        image = NULL;
+        image = loadBMP(filename);
+        if(!image)
+                cout << "Problem loading file!" << endl; 
+        x = newx;
+        y = newy;
+}
+
+DObject::DObject(SDL_Surface* newImage, double newx, double newy)
+{
+        image = NULL;
+        image = copyImage(newImage);
+        if(!image)
+                cout << "Problem loading file!" << endl; 
+        x = newx;
+        y = newy;
+}
+
+DObject::DObject(const DObject &o)
+{
+        image = NULL;
+        image = copyImage(o.image);
+        if(!image)
+                cout << "Problem copying file!" << endl; 
+        x = o.x;
+        y = o.y;
+}
+
+DObject::~DObject()
+{
+        SDL_FreeSurface(image);
+}
+
+void DObject::draw(SDL_Surface* screen)
+{
+        SDL_Rect position;
+        position.x = x - image->w / 2.0;
+        position.y = y - image->h / 2.0;
+        SDL_BlitSurface(image,NULL,screen,&position);
+}
+
+//checks if DObject is out of Bounds
+bool ooB(const DObject* o, SDL_Surface* screen)
+{
+        if(o->x < 0)
+                return true;
+        if(o->y < 0)
+                return true;
+        if(o->x > screen->w)
+                return true;
+        if(o->y > screen->h)
+                return true;
+        return false;
+}
+
+double armorF(double damage, double armor)
+{
+        if(armor > 0)
+                armor *= armor/(armor+damage);
+        damage *= pow(0.5,armor/50);
+        return damage;
+}
+
+
+Levelable::Levelable()
+{
+        exp = 0;
+        level = 1;
+        lin = 30;
+        quad = 10;
+        cube = 2;
+        next = lin;
+}
+
+int Levelable::addExp(double moreExp)
+{
+        int levelups = 0;
+        exp += moreExp;
+        while(exp > next)
+        {
+                levelups++;
+                level++;
+                next += lin;
+                lin += quad;
+                quad += cube;
+        }
+        return levelups;
+}
+
+int Levelable::getLevel()
+{
+        return level;
+}
+
+double Levelable::getExp()
+{
+        return exp;
+}
+
+double* Levelable::getExpPointer()
+{
+        return &exp;
+}
+
+
+Projectile::Projectile(SDL_Surface* newimage, double newx, double newy, double newdamage, double newcollisionSize, double newxSpeed, double newySpeed) : DObject(newimage, newx, newy)
+{
+        damage = newdamage;
+        collisionSize = newcollisionSize;
+        xSpeed = newxSpeed;
+        ySpeed = newySpeed;
+        armorPiercing = 0;
+}
+
+Projectile::Projectile(const Projectile& P) : DObject((DObject) P)
+{
+        damage = P.damage;
+        armorPiercing = P.armorPiercing;
+        collisionSize = P.collisionSize;
+        xSpeed = P.xSpeed;
+        ySpeed = P.ySpeed;
+}
+
+/*structure of a ProjectileFile
+data/projectile2.bmp    #path of the imagefile
+data/sounds/spit                #path of the soundfile without n.wav for int n
+10                                              #damage
+2                                               #armorPiercing
+1.4142                                  #collisionSize
+*/
+Projectile::Projectile(string filename, vector<Mix_Chunk*>& sounds)
+{
+        ifstream ins;
+        ins.open(filename.c_str());
+        if(!ins.is_open())
+        {
+                cout << "Error: Could not load from file " << filename << endl;
+        }
+        string imageFilename;
+        getline(ins, imageFilename);
+        image = loadBMP(imageFilename);
+        string soundPath;
+        getline(ins, soundPath);
+        bool good = true;
+        long long files = 1;
+        while(good)
+        {
+                string actualPath = soundPath + lltostr(files) + ".wav";
+                Mix_Chunk* temp = NULL;
+                temp = Mix_LoadWAV(actualPath.c_str());
+                if(temp == NULL)
+                        good = false;
+                else
+                        sounds.push_back(temp);
+                ++files;
+        }
+        ins >> damage;
+        ins >> armorPiercing;
+        ins >> collisionSize;
+}
+
+void Projectile::frame(double time)
+{
+        x += xSpeed*time;
+        y += ySpeed*time;
+}
+
+void Projectile::rotateAccordingly()
+{
+        double norm = sqrt(xSpeed*xSpeed + ySpeed*ySpeed);
+        if(norm != 0)
+        {
+                double angle = asin(xSpeed / norm);
+                if(ySpeed < 0)
+                {
+                        angle = M_PI-angle;
+                }
+                SDL_Surface* temp = image;
+                image = rotozoomSurface(image,angle/M_PI*180,1,0);
+                SDL_FreeSurface(temp);
+        }
+}
+
+
+
+Item::Item(const Item& item):DObject((DObject) item)
+{
+        cost = item.cost;
+        sellable = item.sellable;
+}
+
+Item::Item(const DObject& dObject):DObject(dObject)
+{
+}
+
+SDL_Surface* Item::getImage()
+{
+        return image;
+}
+
+Weapon::Weapon(const Weapon& w):Item((Item) w)
+{
+        playSound = true;
+        for(int i = 0; i < (int) w.prototypes.size(); ++i)
+        {
+                prototypes.push_back(new Projectile(*w.prototypes[i]));
+        }
+        for(int i = 0; i < (int) w.sounds.size(); ++i)
+        {
+                vector<Mix_Chunk*> temp;
+                for(int j = 0; j < (int) w.sounds[i].size(); ++j)
+                {
+                        temp.push_back(w.sounds[i][j]);
+                }
+                sounds.push_back(temp);
+        }
+        sellable = w.sellable;
+        cost = w.cost;
+        active = true;
+        energyUsage = w.energyUsage;
+        name = w.name;
+        cooldown = w.cooldown;
+        startTimer = w.startTimer;
+        currentTimer = startTimer;
+}
+
+/* structure of a Weaponfile:
+epic imbaweapon of massdestruction      #name
+data/weapon89.bmp                                       #filename of image of weapon
+0.5                                                                     #energyusage
+0                                                                       #sellable
+10000000                                                        #cost
+2                                                                       #number of distinguished Projectiles
+1                                                                       #cooldown
+0.5                                                                     #startTimer
+data/projectile11.txt                           #path
+0                                                                       #xSpeed
+700                                                                     #-ySpeed
+5                                                                       #cooldown
+0                                                                       #startTimer
+data/projectile14.txt                           #path
+0                                                                       #xSpeed
+500                                                                     #-ySpeed
+*/
+Weapon::Weapon(string filename)
+{
+        playSound = true;
+        ifstream ins;
+        ins.open(filename.c_str());
+        if(!ins.is_open())
+        {
+                cout << "Error: Could not open file " << filename << endl;
+        }
+        getline(ins,name);
+        string imageFilename;
+        getline(ins, imageFilename);
+//      cout << imageFilename << endl;
+        image = loadBMP(imageFilename);
+        active = true;
+        ins >> energyUsage;
+        ins >> sellable;
+        ins >> cost;
+        int Nprojectiles;
+        ins >> Nprojectiles;
+        for(;Nprojectiles;Nprojectiles--)
+        {
+                double temp;
+                ins >> temp;
+                cooldown.push_back(temp);
+                ins >> temp;
+                startTimer.push_back(temp);
+                string projectileFilename;
+                //this workaround discards all \n
+                char workaround;
+                ins >> workaround;
+                getline(ins,projectileFilename);
+                vector<Mix_Chunk*> projectileSounds;
+                prototypes.push_back(new Projectile(workaround + projectileFilename, projectileSounds));
+                ins >> prototypes[prototypes.size()-1]->xSpeed;
+                ins >> prototypes[prototypes.size()-1]->ySpeed;
+                prototypes[prototypes.size()-1]->ySpeed *= -1;
+                sounds.push_back(projectileSounds);
+        }
+        currentTimer = startTimer;
+        ins.close();
+        if(cost == 0)
+                cost = round_beautiful(estimateValue(*this));
+}
+
+Weapon::~Weapon()
+{
+        for(int i = 0; i < (int) prototypes.size(); ++i)
+                delete prototypes[i];
+}
+
+vector<Projectile*> Weapon::frame(double time)
+{
+        vector<Projectile*> result;
+        for(int i = 0; i < (int) prototypes.size(); ++i)
+        {
+                currentTimer[i] += time;
+                while(currentTimer[i] > cooldown[i])
+                {
+                        Projectile* tempP = new Projectile(*prototypes[i]);
+                        if(sounds[i].size() && playSound)
+                        {
+                                int temp = Mix_PlayChannel(-1,sounds[i][rand()%sounds[i].size()],0);
+                                if(temp == -1)
+                                {
+                                        cout << "there was an error playing sound of projectile" << " from weapon " << name << endl;
+                                }
+                        }
+                        tempP->x = x;
+                        tempP->y = y;
+                        tempP->rotateAccordingly();
+                        currentTimer[i] -= cooldown[i];
+                        tempP->frame(currentTimer[i]);
+                        result.push_back(tempP);
+                }
+        }
+        return result;
+}
+
+void Weapon::mirror()
+{
+        for(int i = 0; i < (int) prototypes.size(); ++i)
+                prototypes[i]->ySpeed *= -1;
+}
+
+double Weapon::getDPS() const
+{
+        double result = 0;
+        for(int i = 0; i < (int) prototypes.size(); ++i)
+                result += prototypes[i]->damage/cooldown[i];
+        return result;
+}
+
+double Weapon::getDPE() const
+{
+        if(energyUsage == 0)
+                return 0;
+        return getDPS()/energyUsage; 
+}
+
+double estimateValue(const Weapon& w)
+{
+        double result = w.getDPS()*w.getDPS()*5;
+        if(w.getDPE() != 0)
+                result /= 0.3 + 1 / w.getDPE();
+        else
+                result /= 0.3;
+        return result;
+}
+
+void Upgradeable::setValue(double nvalue)
+{
+        value = nvalue;
+}
+
+double Upgradeable::getValue() const
+{
+        return value;
+}
+
+Upgradeable::Upgradeable()
+{
+        level = 1;
+        cost = 0;
+        maxLevel = 0;
+}
+
+Upgradeable::operator double() const
+{
+        return value;
+}
+
+Upgradeable& Upgradeable::operator=(const double& d)
+{
+        value = d;
+        return *this;
+}
+
+Upgradeable::Upgradeable(double nvalue)
+{
+        level = 1;
+        cost = 0;
+        maxLevel = 0;
+        value = nvalue;
+}
+
+void Upgradeable::upgrade()
+{
+        if(level == maxLevel)
+        {
+                cout << "Can't Upgrade! Already at max Level." << endl;
+        }
+        level++;
+        cost += cost * (3+level)/10.0;
+        value += 0.3*value;
+}
+
+
+void Upgradeable::save(ofstream& o)
+{
+        o << name << endl;
+        o << value << endl;
+        o << cost << endl;
+        o << level << endl;
+        o << maxLevel << endl;
+}
+
+void Upgradeable::load(ifstream& i)
+{
+        char workaround;
+        i >> workaround;
+        getline(i,name);
+        name = workaround + name;
+        i >> value;
+        i >> cost;
+        i >> level;
+        i >> maxLevel;
+}
+
+ifstream& operator>>(ifstream& ins, Upgradeable& u)
+{
+        double d;
+        ins >> d;
+        u = d;
+        return ins;
+}
+
+Ship::Ship(string filename,int x, int y):DObject(filename,x,y)
+{
+        collisionSize = image->w;
+}
+
+Ship::~Ship()
+{
+        for(int i = 0; i < (int) weapons.size();++i)
+                delete weapons[i];      
+}
+
+vector<Projectile*> Ship::frame(double time)
+{
+        vector<Projectile*> result;
+        return result;
+}
+
+int Ship::hit(const Projectile& P)
+{
+        double tempArmor = 0;
+        if(armor > 0)
+                tempArmor = max(tempArmor,armor-P.armorPiercing);
+        hp -= armorF(P.damage,tempArmor);
+        if(hp < 0)
+                return 1;
+        return 0;
+}
+
+Ship::Ship(const Ship& s):DObject((DObject) s)
+{
+        name = s.name;
+        maxhp = s.maxhp;
+        hp = maxhp;
+        moveSpeed = s.moveSpeed;
+        collisionSize = s.collisionSize;
+        armor = s.armor;
+        for(int i = 0; i < (int) s.weapons.size(); ++i)
+        {
+                weapons.push_back(new Weapon(*s.weapons[i]));
+                slotPositions.push_back(s.slotPositions[i]);
+        }
+}
+
+
+EnemyShip::EnemyShip(const EnemyShip& s): Ship((Ship) s)
+{
+        path = s.path;
+        gold = s.gold;
+        exp = s.exp;
+        score = s.score;
+        current = 0;
+        if(!path.size())
+        {
+                path.push_back(make_pair(s.x,s.y));
+        }
+        x = path[0].first;
+        y = path[0].second;
+        
+}
+
+/*structure of an EnemShipfile
+Tork Spacerocket                                        #name
+data/images/tork_spacerocket.bmp        #path of imagefile
+7                                                                       #maxhp
+5                                                                       #armor
+50                                                                      #moveSpeed
+4                                                                       #collisionSize
+3                                                                       #Gold
+3                                                                       #exp
+3                                                                       #score
+1                                                                       #number of weapons
+0 -1                                                            #relative Position of weapon
+data/fireball.txt                                       #path of weapon
+*/
+EnemyShip::EnemyShip(string filename)
+{
+        current = 0;
+        path.push_back(make_pair(0,0));
+        ifstream ins;
+        ins.open(filename.c_str());
+        if(!ins.is_open())
+                cout << "Error: Could not open enemyfile " << filename << endl;
+        getline(ins, name);
+        string imagePath;
+        getline(ins, imagePath);
+        image = loadBMP(imagePath);
+        ins >> maxhp;
+        hp = maxhp;
+        ins >> armor;
+        ins >> moveSpeed;
+        ins >> collisionSize;
+        ins >> gold;
+        ins >> exp;
+        ins >> score;
+        int Nweapons = 0;
+        ins >> Nweapons;
+        for(;Nweapons;Nweapons--)
+        {
+                double temp1, temp2;
+                ins >> temp1;
+                ins >> temp2;
+                slotPositions.push_back(make_pair(temp1,temp2));
+                //A workaround that helps discarting \n
+                char workaround;
+                ins >> workaround;
+                string weaponpath;
+                getline(ins, weaponpath);
+                weapons.push_back(new Weapon(workaround + weaponpath));
+                weapons[weapons.size()-1]->mirror();
+        }
+        if(!(exp || gold || score))
+                assignValue();
+}
+
+vector<Projectile*> EnemyShip::frame(double time)
+{
+        //adjusting position
+        while(current != path.size()-1 && path[current] == make_pair(x,y))
+                current++;
+        if(path[current] != make_pair(x,y))
+        {
+                double dirx = path[current].first - x;
+                double diry = path[current].second - y;
+                double norm = sqrt(dirx*dirx + diry*diry);
+                dirx /= norm;
+                diry /= norm;
+                if(norm < moveSpeed*time)
+                {
+                        x = path[current].first;
+                        y = path[current].second;
+                }
+                else
+                {
+                        x += dirx * moveSpeed * time;
+                        y += diry * moveSpeed * time;
+                }
+        }
+        for(int i = 0; i < (int) weapons.size(); ++i)
+        {
+                weapons[i]->x = x + slotPositions[i].first;
+                weapons[i]->y = y + slotPositions[i].second;
+//              cout << weapons[i]->x << " " << weapons[i]->y << " weapon " << i << endl;
+        }
+        
+        
+        vector<Projectile*> result;
+        for(int i = 0; i < (int) weapons.size(); ++i)
+        {
+                vector<Projectile*> temp;
+                temp = weapons[i]->frame(time);
+                for(int j = 0; j < (int) temp.size(); ++j)
+                        result.push_back(temp[j]);
+        }
+        return result;
+}
+
+void EnemyShip::assignValue()
+{
+        exp = 0;
+        for(int i = 0; i < (int) weapons.size(); ++i)
+                exp += weapons[i]->getDPS();
+//      exp *= 4;
+        gold = maxhp * pow(2,armor/(50.0+maxhp/10))*2.5;
+        score = gold * moveSpeed / 140;
+        double sum = (gold + score + exp)/9;
+        exp = (int)(sqrt(exp+sum)+0.5);
+        gold = (int)(sqrt(gold+sum) +0.5);
+        score = (int)(sqrt(score+sum)+0.5);
+//      cout << s.name << '\n';
+//      cout << "gold: " << s.gold << " -> " << gold << '\n';
+//      cout << "high: " << s.score << " -> " << high << '\n';
+//      cout << "exp: " << s.exp << " -> " << exp << '\n';
+//      cout << "sum: " << sum << '\n';
+}
+
+
+vector<Upgradeable*> UserShip::getUpgradeables()
+{
+        vector<Upgradeable*> result;
+        result.push_back(&maxhp);
+        result.push_back(&armor);
+        result.push_back(&maxEnergy);
+        result.push_back(&energyProduction);
+        result.push_back(&handling);
+        result.push_back(&moveSpeed);
+        return result;
+}
+
+vector<Projectile*> UserShip::frame(double time, SDL_Surface* screen)
+{
+        vector<Projectile*> result;
+        //adjust energy
+        energy += energyProduction*time;
+        if(energy > maxEnergy)
+                energy = maxEnergy;
+        if(shooting)
+        {
+                double energyNeed = 0;
+                for(int i = 0; i < (int) weapons.size(); ++i)
+                        energyNeed += weapons[i]->energyUsage*time;
+                if(energyNeed < energy)
+                {
+                        energy -= energyNeed;
+                        for(int i = 0; i < (int) weapons.size(); ++i)
+                        {
+                                vector<Projectile*> temp;
+                                temp = weapons[i]->frame(time);
+                                for(int j = 0; j < (int) temp.size(); ++j)
+                                        result.push_back(temp[j]);
+                        }
+                }
+        }
+        
+        //adjust speed and position of the ship
+        double norm1 = sqrt(right*right + down*down);
+        double norm2 = sqrt(xSpeed*xSpeed + ySpeed*ySpeed);
+        double handconst = time*handling;
+        double speedconst = norm2/moveSpeed;
+        if(handconst * speedconst > norm2 || norm2 == 0)
+        {
+                xSpeed = 0;
+                ySpeed = 0;
+        }
+        else
+        {
+                xSpeed *= 1 - speedconst * handconst / norm2;
+                ySpeed *= 1 - speedconst * handconst / norm2 ;
+        }
+        norm2 = sqrt(xSpeed*xSpeed + ySpeed*ySpeed);
+        if(norm1 != 0)
+        {
+                xSpeed += handconst*right / norm1;
+                ySpeed += handconst*down / norm1;
+        }
+        else
+        {
+                if(handconst > norm2)
+                {
+                        xSpeed = 0;
+                        ySpeed = 0;
+                }
+                else
+                {
+                        xSpeed -= handconst * xSpeed / norm2;
+                        ySpeed -= handconst * ySpeed / norm2;
+                }
+        }
+//              cout << xSpeed << " " << ySpeed << endl;
+        x += xSpeed*time;
+        y += ySpeed*time;
+        if(x - image->w/2.0 < 0)
+        {
+                x = image->w/2.0;
+                xSpeed = 0;
+        }
+        if(y - image->h/2.0 < 0)
+        {
+                y = image->h/2.0;
+                ySpeed = 0;
+        }
+        if(x + image->w/2.0 > screen->w)
+        {
+                x = screen->w - image->w/2.0;
+                xSpeed = 0;
+        }
+        if(y + image->h/2.0 > screen->h)
+        {
+                y = screen->h - image->h/2.0;
+                ySpeed = 0;
+        }
+        for(int i = 0; i < (int) weapons.size(); ++i)
+        {
+                weapons[i]->x = slotPositions[i].first + x;
+                weapons[i]->y = slotPositions[i].second + y;
+        }
+        return result;
+}
+
+/*structure of an UserShipfile
+small Fighter                                   #name
+data/images/small_fighter.bmp   #path of imagefile
+200                                                             #cost
+7                                                               #maxhp
+50                                                              #armor
+200                                                             #moveSpeed
+100                                                             #handling
+10                                                              #maxEnergy
+2                                                               #energyProduction
+7                                                               #collisionSize
+2                                                               #number of weapons
+4 4                                                             #relative Position of weapon
+3                                                               #maxSize of attached weapon
+data/fireball.txt                               #path of weapon
+4 4                                                             #relative Position of weapon
+3                                                               #maxSize of attached weapon
+data/fireball.txt                               #path of weapon
+*/
+UserShip::UserShip(string filename)
+{
+        xSpeed = 0;
+        ySpeed = 0;
+        down = 0;
+        right = 0;
+        shooting = 0;
+        ifstream ins;
+        ins.open(filename.c_str());
+        if(!ins.is_open())
+                cout << "Error: Could not open userShip " << filename << endl;
+        getline(ins, name);
+        string imagePath;
+        getline(ins, imagePath);
+        image = loadBMP(imagePath);
+        ins >> cost;
+        ins >> maxhp;
+        maxhp.name = "Hitpoints";
+        maxhp.cost = cost/10;
+        hp = maxhp;
+        ins >> armor;
+        armor.name = "Armor";
+        armor.cost = cost/10;
+        ins >> moveSpeed;
+        moveSpeed.name = "Max Speed";
+        moveSpeed.cost = cost/10;
+        ins >> handling;
+        handling.name = "Acceleration";
+        handling.cost = cost/10;
+        ins >> maxEnergy;
+        maxEnergy.name = "Battery";
+        maxEnergy.cost = cost/10;
+        energy = maxEnergy;
+        ins >> energyProduction;
+        energyProduction.name = "Generator";
+        energyProduction.cost = cost/10;
+        ins >> collisionSize;
+        ins >> weaponSlots;
+        for(int i = 0; i < weaponSlots;i++)
+        {
+                double temp1, temp2;
+                ins >> temp1;
+                ins >> temp2;
+                slotPositions.push_back(make_pair(temp1,temp2));
+                ins >> temp1;
+                maxSize.push_back(temp1);
+                //A workaround that helps discarting \n
+                char workaround;
+                ins >> workaround;
+                string weaponpath;
+                getline(ins, weaponpath);
+                weapons.push_back(new Weapon(workaround + weaponpath));
+        }
+        if(cost == 0)
+                cost = round_beautiful(estimateValue(*this));
+        ins.close();
+}
+
+void UserShip::reset()
+{
+        hp = maxhp;
+        energy = maxEnergy;
+        xSpeed = 0;
+        ySpeed = 0;
+        for(int i = 0; i < (int) weapons.size(); ++i)
+        {
+                weapons[i]->playSound = false;
+                vector<Projectile*> dump = weapons[i]->frame((rand()%2000)/1000.0);
+                weapons[i]->playSound = true;
+                for(int j = 0; j < (int) dump.size(); ++j)
+                        delete dump[j];
+        }
+}
+
+void UserShip::draw(SDL_Surface* screen)
+{
+        DObject::draw(screen);  
+        for(int i = 0; i < (int) weapons.size(); ++i)
+                weapons[i]->draw(screen);
+}
+
+SDL_Surface* UserShip::getImage()
+{
+        return image;
+}
+
+double estimateValue(const UserShip& s)
+{
+        double result;
+        result = s.maxhp * pow(2,s.armor/(50.0+s.maxhp/10));
+        result *= result;
+        result += s.maxEnergy*s.maxEnergy + s.energyProduction * s.energyProduction * 50;
+        result *= s.weapons.size();
+        result *= s.moveSpeed / 300 * s.handling / 300;
+        
+        return result/11;
+}
+
+
+
+