345 lines
7.6 KiB
C++
345 lines
7.6 KiB
C++
/*
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Copyright (C) 2003 Parallel Realities
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "game.h"
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void newGame()
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{
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currentGame.system = 0;
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currentGame.area = 0;
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currentGame.sfxVolume = 0;
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currentGame.musicVolume = 0;
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if (!engine.useAudio)
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{
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currentGame.useSound = 0;
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currentGame.useMusic = 0;
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}
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currentGame.autoSaveSlot = -1;
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currentGame.cash = 0;
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currentGame.cashEarned = 0;
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currentGame.shots = 0;
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currentGame.hits = 0;
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currentGame.accuracy = 0;
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currentGame.totalKills = currentGame.wingMate1Kills = currentGame.wingMate2Kills = 0;
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currentGame.totalOtherKills = 0;
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currentGame.hasWingMate1 = currentGame.hasWingMate2 = 0;
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currentGame.wingMate1Ejects = currentGame.wingMate2Ejects = 0;
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currentGame.secondaryMissions = currentGame.secondaryMissionsCompleted = 0;
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currentGame.shieldPickups = currentGame.rocketPickups = currentGame.cellPickups = 0;
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currentGame.powerups = currentGame.minesKilled = currentGame.cargoPickups = 0;
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currentGame.slavesRescued = 0;
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currentGame.experimentalShield = 1000;
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currentGame.timeTaken = 0;
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currentGame.stationedPlanet = -1;
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currentGame.destinationPlanet = -1;
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for (int i = 0 ; i < 10 ; i++)
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currentGame.missionCompleted[i] = 0;
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currentGame.distanceCovered = 0;
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currentGame.maxPlasmaRate = 13;
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currentGame.maxPlasmaOutput = 2;
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currentGame.maxPlasmaDamage = 2;
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currentGame.maxPlasmaAmmo = 100;
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currentGame.maxRocketAmmo = 10;
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currentGame.shieldUnits = 1;
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player.maxShield = 25;
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player.shield = 25;
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player.ammo[0] = 0;
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player.ammo[1] = 5;
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player.weaponType[0] = W_PLAYER_WEAPON;
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player.weaponType[1] = W_ROCKETS;
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initWeapons();
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initMissions();
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initPlanetMissions(currentGame.system);
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}
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int mainGameLoop()
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{
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Uint32 then, now, frames;
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resetLists();
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setMission(currentGame.area);
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missionBriefScreen();
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initCargo();
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initPlayer();
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initAliens();
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clearInfoLines();
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loadScriptEvents();
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engine.ssx = 0;
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engine.ssy = 0;
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engine.done = 0;
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frames = 0;
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engine.counter = (SDL_GetTicks() + 1000);
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engine.counter2 = (SDL_GetTicks() + 1000);
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engine.missionCompleteTimer = 0;
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engine.musicVolume = 100;
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int rtn = 0;
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unsigned long frameLimit = SDL_GetTicks();
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int allowableAliens = 999999999;
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for (int i = 0 ; i < 3 ; i++)
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{
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if ((currentMission.primaryType[i] == M_DESTROY_TARGET_TYPE) && (currentMission.target1[i] == CD_ANY))
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allowableAliens = currentMission.targetValue1[i];
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if (currentMission.primaryType[i] == M_DESTROY_ALL_TARGETS)
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allowableAliens = 999999999;
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}
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for (int i = 0 ; i < MAX_ALIENS ; i++)
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{
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if ((enemy[i].active) && (enemy[i].flags & FL_WEAPCO))
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{
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allowableAliens--;
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}
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}
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then = SDL_GetTicks();
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graphics.drawBackGround();
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graphics.flushBuffer();
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// Default to no aliens dead...
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engine.allAliensDead = 0;
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engine.keyState[SDLK_LCTRL] = engine.keyState[SDLK_RCTRL] = engine.keyState[SDLK_SPACE] = 0;
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flushInput();
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while (engine.done != 1)
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{
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++frames;
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graphics.updateScreen();
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if ((allMissionsCompleted()) && (engine.missionCompleteTimer == 0))
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{
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engine.missionCompleteTimer = SDL_GetTicks() + 4000;
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}
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if ((missionFailed()) && (engine.missionCompleteTimer == 0))
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{
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if (currentGame.area != 5)
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engine.missionCompleteTimer = SDL_GetTicks() + 4000;
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}
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if (engine.missionCompleteTimer != 0)
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{
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engine.gameSection = SECTION_INTERMISSION;
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if (player.shield > 0)
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{
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if (SDL_GetTicks() >= engine.missionCompleteTimer)
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{
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if ((!missionFailed()) && (currentGame.area != 26))
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{
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leaveSector();
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if ((engine.done == 2) && (currentGame.area != 10) && (currentGame.area != 15))
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{
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if ((enemy[FR_PHOEBE].shield > 0) && (currentGame.area != 25))
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{
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enemy[FR_PHOEBE].x = player.x - 40;
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enemy[FR_PHOEBE].y = player.y - 35;
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enemy[FR_PHOEBE].face = 0;
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}
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if ((enemy[FR_URSULA].shield > 0) && (currentGame.area != 25))
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{
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enemy[FR_URSULA].x = player.x - 40;
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enemy[FR_URSULA].y = player.y + 45;
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enemy[FR_URSULA].face = 0;
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}
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if ((currentGame.area == 9) || (currentGame.area == 17))
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{
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enemy[FR_SID].x = player.x - 100;
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enemy[FR_SID].y = player.y;
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enemy[FR_SID].face = 0;
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}
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}
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}
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else if ((currentGame.area == 26) && (engine.musicVolume > 0))
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{
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Math::limitFloat(&(engine.musicVolume -= 0.2), 0, 100);
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Mix_VolumeMusic((int)engine.musicVolume);
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}
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else
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{
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engine.done = 1;
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}
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}
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else
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{
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getPlayerInput();
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}
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}
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else
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{
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Math::limitFloat(&(engine.musicVolume -= 0.2), 0, 100);
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Mix_VolumeMusic((int)engine.musicVolume);
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if (SDL_GetTicks() >= engine.missionCompleteTimer)
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{
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engine.done = 1;
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}
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}
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}
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else
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{
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getPlayerInput();
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}
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graphics.unBuffer();
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doStarfield();
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doCollectables();
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doBullets();
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doAliens();
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doPlayer();
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doCargo();
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doDebris();
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doExplosions();
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doInfo();
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Math::wrapChar(&(--engine.eventTimer), 0, 60);
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while (engine.paused)
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{
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engine.done = checkPauseRequest();
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then = SDL_GetTicks();
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frames = 0;
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graphics.updateScreen();
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}
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if ((currentGame.area == 24) && (engine.addAliens > -1))
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{
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if ((rand() % 10) == 0)
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addCollectable(Math::rrand(800, 100), player.y, P_MINE, 25, 180 + rand() % 60);
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}
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if (engine.addAliens > -1)
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{
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Math::wrapInt(&(--engine.addAliens), 0, currentMission.addAliens);
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if ((engine.addAliens == 0) && (allowableAliens > 0))
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{
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allowableAliens -= addAlien();
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}
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}
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if ((player.shield <= 0) && (engine.missionCompleteTimer == 0))
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engine.missionCompleteTimer = SDL_GetTicks() + 7000;
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// specific to Boss 1
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if ((currentGame.area == 5) && (enemy[WC_BOSS].flags & FL_ESCAPED))
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{
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playSound(SFX_DEATH);
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graphics.clearScreen(graphics.white);
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graphics.updateScreen();
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for (int i = 0 ; i < 300 ; i++)
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{
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SDL_Delay(10);
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if ((rand() % 25) == 0)
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playSound(SFX_EXPLOSION);
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}
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SDL_Delay(1000);
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break;
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}
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// (Attempt to) Limit us to 60 frame a second
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while (SDL_GetTicks() < (frameLimit + 16))
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{
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// Do nothing. If we were to insert an SDL_Delay(1) in here
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// then we would actually lose around 10 frames per second!!
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}
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frameLimit = SDL_GetTicks();
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}
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graphics.flushBuffer();
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now = SDL_GetTicks();
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if ( now > then )
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{
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//printf("Mission %d: %2.2f frames per second\n", currentGame.area, ((double)frames*1000)/(now-then));
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}
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if ((player.shield > 0) && (!missionFailed()))
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{
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if (currentGame.area < 26)
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missionFinishedScreen();
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switch (currentGame.area)
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{
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case 5:
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doCutscene(1);
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doCutscene(2);
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break;
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case 7:
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doCutscene(3);
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break;
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case 11:
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doCutscene(4);
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break;
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case 13:
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doCutscene(5);
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break;
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case 18:
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doCutscene(6);
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break;
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case 26:
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doCredits();
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break;
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}
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if (currentGame.area < 26)
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{
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updateSystemStatus();
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if (currentGame.autoSaveSlot > -1)
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saveGame(currentGame.autoSaveSlot + 1);
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}
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rtn = 1;
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if (currentGame.area == 26)
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rtn = 0;
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}
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else
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{
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gameover();
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rtn = 0;
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}
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return rtn;
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}
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