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HelperFunctions.cpp

Go to the documentation of this file.

/*
CS Senior Project 2003
Team : Leftfield
Project : ModernWarfare
Members :
- Russ Christensen              <rchriste@cs.utah.edu>
- Todd Smith                    <tcsmith@cs.utah.edu>
- Usit Duongsaa                 <duongsaa@cs.utah.edu>
Copyright 2003 Russ Christensen, Usit Duongsaa, and Todd Smith. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 
THIS SOFTWARE IS PROVIDED BY RUSS CHRISTENSEN, USIT DUONGSAA, AND TODD SMITH ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RUSS, USIT, TODD OR OTHER CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include "..\AEngine\AEngine.h"
#include "HelperFunctions.h"
#include <math.h>
#include "GameState.h"

namespace Helper {
        FLOAT abs(FLOAT num) {
                if(num < 0) return -1 * num;
                else return num;
        }

        FLOAT distXY(Vec3D &a, Vec3D &b) 
        {
                return sqrtf( powf(abs(a.x - b.x), 2) + powf(abs(a.y - b.y), 2));
        }

        string serialize(Vec3D vec)
        {
                stringstream sstr;
                sstr << vec.x << " " << vec.y << " " << vec.z;
                return sstr.str();
        }

        Vec3D unserializeVec3D(stringstream & sstr)
        {
                Vec3D vec;
                sstr >> vec.x >> vec.y >> vec.z;
                if(sstr.bad()) throw Error("invalid data received");
                return vec;
        }
    
        FLOAT radiansToDegrees(FLOAT rad)
        {
                const FLOAT PI(3.15159f);
                FLOAT degrees(rad/PI*180);
                return degrees;
        }
        
        string toLower(string str)
        {
                for(unsigned int i=0; i < str.size(); ++i)
                {
                        str[i] = tolower(str[i]);
                }
                return str;
        }

        string eatEarlyWhiteSpace(string input)
        {
                while(input[0] == ' ') input = input.substr(1);
                return input;
        }

        Vec3D playerNumberToPlayerColor(int num)
        {
                Vec3D colors[8] = {Colors::red, Colors::blue, Colors::green, Colors::yellow,  
               Colors::cyan, Colors::white, Colors::black, Colors::magenta};
                return num < 8 ? colors[num] : Vec3D(0,0,0);
        }

        int totalCitiesForPlayer(Vec3D playerColor)
        {
                int total = 0;
                for(vector<City*>::iterator iter(GameState::cities().begin()); iter != GameState::cities().end(); ++iter)
                {
                        if ((*iter)->color() == playerColor) ++total;
                }
                return total;
        }

        Player* playerNumberToPlayerPointer(int num)
        {
                Vec3D playerColor(playerNumberToPlayerColor(num));
                for(vector<Player*>::iterator iter(GameState::players().begin()); iter != GameState::players().end(); ++iter)
                {
                        if ((*iter)->color() == playerColor) return *iter;
                }
                return 0;
        }

        int playerColorToPlayerNumber(Vec3D color)
        {
                if (color == Colors::red) return 0;
                else if (color == Colors::blue) return 1;
                else if (color == Colors::green) return 2;
                else if (color == Colors::yellow) return 3;
                else if (color == Colors::cyan) return 4;
                else if (color == Colors::white) return 5;
                else if (color == Colors::black) return 6;
                else if (color == Colors::magenta) return 7;
                else {
                        sys_console() << "ERROR! invalid color given" << endl;
                        return 0;
                }
        }

        string playerColorToPlayerName(Vec3D color)
        {
                unsigned int num(playerColorToPlayerNumber(color));
                return net_getPlayerNameUsingNum(num);          
        }

        void printPlayerNameToScreen(Vec3D playerColor, Vec2D location, FLOAT scale)
        {
                overlay_text() << playerColorToPlayerName(playerColor);
                overlay_textOut(location, scale, playerColor);
        }

        int totalUnitsForPlayer(Vec3D playerColor)
        {
                int totalUnits = 0;
                for(vector<MilitaryUnit*>::iterator iter(GameState::units().begin()); iter != GameState::units().end(); ++iter)
                {
                        if ((*iter)->color() == playerColor) ++totalUnits;
                }
                for(vector<BattleEntry*>::iterator iter(GameState::battles().begin()); iter != GameState::battles().end(); ++iter)
                {
                        totalUnits += (*iter)->countGroupsBelongingToPlayer(playerColor);
                }
                return totalUnits;
        }

        int totalUnitsBeingBuiltForPlayer(Vec3D playerColor)
        {
                int total = 0;
                for(vector<City*>::iterator iter(GameState::cities().begin()); iter != GameState::cities().end(); ++iter)
                {
                        if ((*iter)->color() == playerColor) total += static_cast<int>((*iter)->trainees().size());
                }
                return total;
        }

        int maintenanceMultiplier(Vec3D playerColor, int amount)
        {
                FLOAT tmp;
                int totalUnits(totalUnitsForPlayer(playerColor));
                if (totalUnits < 15) return amount;
                else if (totalUnits < 25) tmp = amount * 0.5f;
                else tmp = amount * 0.1f;
                int result(static_cast<int>(tmp));
                if (result > 0) return result;
                else return 1;
        }
}

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