void render()
{
// Clears the buffer with this colour attribute
clearBuffer(0x00);
// Set up sample colours, and output shadings
const WORD colors[] = {
0x1A, 0x2B, 0x3C, 0x4D, 0x5E, 0x6F,
0xA1, 0xB2, 0xC3, 0xD4, 0xE5, 0xF6
};
COORD c;
// displays the framerate
std::ostringstream ss;
ss << std::fixed << std::setprecision(3);
ss << 1.0 / deltaTime << "fps";
c.X = ConsoleSize.X-9;
c.Y = 0;
writeToBuffer(c, ss.str());
// displays the elapsed time
ss.str("");
ss << elapsedTime << "secs";
c.X = 0;
c.Y = ConsoleSize.Y - 1;
writeToBuffer(c, ss.str(), 0x59);
if (!levelStart)
levelStart = initLevel();
renderShip();
moveBullets();
checkBulletCollision(enemyArr, levelInfo.number);
renderBullets();
if (!spawnBufferCount && enemiesSpawned < levelInfo.number)
{
if (spawnEnemy(enemyArr, levelInfo.number))
{
spawnBufferCount += levelInfo.spawnBuffer;
enemiesSpawned++;
}
}
else if (spawnBufferCount) spawnBufferCount--;
moveEnemy(enemyArr, levelInfo.number);
checkBulletCollision(enemyArr, levelInfo.number);
checkEnemyCollision(enemyArr, levelInfo.number);
renderEnemy(enemyArr, levelInfo.number);
if (levelInfo.bullets)
{
if (spawnEnemyBullet(enemyArr))
{
spawnBufferCount += bulletInfo.spawnBuffer;
}
moveEnemy(enemyBulletArr, bulletInfo.number);
checkEnemyCollision(enemyBulletArr, bulletInfo.number);
renderEnemy(enemyBulletArr, bulletInfo.number);
}
// Writes the buffer to the console, hence you will see what you have written
flushBufferToConsole();
if (enemiesSpawned == levelInfo.number)
{
if (checkClear(enemyArr, levelInfo.number))
{
levelStart = false;
enemiesSpawned = 0;
spawnBufferCount = 0;
delete[] enemyArr;
delete[] enemyBulletArr;
levelInfo.level = levelInfo.nextLevel;
}
}
}
void run(){
Display gDisplay;
Assets gAssets;
ControlState gControlState;
SDL_Event e;
bool quit = false;
srand(time(NULL));
if (!initDisplay(&gDisplay)) {
fprintf(stderr, "ERROR: failed to initialize\n");
exit(1);
}
if (!loadAssets(&gAssets, &gDisplay)) {
fprintf(stderr, "ERROR: failed to load game assets\n");
exit(1);
}
Player p = P_createPlayer();
AI *ai = AI_createAI();
LinkedList playerBulletList = LL_createLinkedList();
LinkedList enemyBulletList = LL_createLinkedList();
LinkedList enemyList = LL_createLinkedList();
Timer fpsCapTimer = T_createTimer();
Timer gameTimer = T_createTimer();
unsigned int lastShooting = 0;
unsigned int lastEnemenySpawn = 0;
unsigned int check = 0;
T_start(&gameTimer);
int controlarray[4] = {0};
SDL_Rect healthbar;
initialisehealthbar(&healthbar);
quit = staticscreen(gDisplay.renderer, "Assets/startmenu.bmp");
SDL_Surface* temp;
SDL_Texture* background;
temp = SDL_LoadBMP("Assets/background.bmp");
background = SDL_CreateTextureFromSurface(gDisplay.renderer, temp);
SDL_FreeSurface(temp);
temp = NULL;
/*Event loop*/
do{
// start frame timer
T_start(&fpsCapTimer);
// check for exit event
SDL_PollEvent(&e);
quit = (e.type == SDL_QUIT);
// check to open ai interface
if(e.type == SDL_KEYDOWN){
if(e.key.keysym.sym == SDLK_ESCAPE){
quit = openaiscreen(gDisplay.renderer, controlarray);
e.key.keysym.sym = SDLK_0;
SDL_PushEvent(&e);
}
}
// move player
getKeyState(&gControlState);
getMouseState(&gControlState);
movePlayer(&p, &gControlState, &gAssets);
AI_move(ai, P_getPosition(&p));
if ((check = T_getTicks(&gameTimer)) - lastEnemenySpawn > DEFAULT_SPAWN_INTERVAL) {
spawnEnemy(&enemyList);
lastEnemenySpawn = check;
}
aiaction(ai, &playerBulletList, &enemyList, T_getTicks(&gameTimer), controlarray, &p);
moveEnemies(&enemyList, P_getPosition(&p));
enemiesShoot(&enemyList, &enemyBulletList, &p, T_getTicks(&gameTimer));
if (leftMouseIsDown() && ((check = T_getTicks(&gameTimer)) - lastShooting) > SHOOT_DELAY) {
double mx = (double)gControlState.mouseX / SCREEN_WIDTH;
double my = (double)gControlState.mouseY / SCREEN_HEIGHT;
Point origin = P_getPosition(&p);
Point destination = {mx, my};
shootBullet(&playerBulletList, origin, getShotDirection(origin, destination), PLAYER);
lastShooting = check;
}
moveBullets(&playerBulletList);
moveBullets(&enemyBulletList);
detectCollision(&playerBulletList, &enemyList, &gAssets);
detectCollisionPlayer(&enemyBulletList, &p, &gAssets);
/* Update Screen */
SDL_RenderCopy(gDisplay.renderer, background, NULL, NULL);
displayhealth(gDisplay.renderer, healthbar, p.health);
renderBullets(&playerBulletList, &gDisplay, &gAssets, PLAYER);
renderBullets(&enemyBulletList, &gDisplay, &gAssets, ENEMY);
renderEnemies(&enemyList, &gDisplay, &gAssets);
renderPlayer(&gDisplay, &gAssets, &gControlState);
renderAI(ai, &gDisplay, &gAssets);
// draw screen
SDL_RenderPresent(gDisplay.renderer);
delayNextFrame(T_getTicks(&fpsCapTimer));
if (gameOver(&p)) {
printf("GAME OVER\n");
quit = staticscreen(gDisplay.renderer, "Assets/gameover.bmp");
p.health = 100;
}
} while (!quit);
/* Memory Cleanup */
LL_destroyLinkedList(&playerBulletList);
LL_destroyLinkedList(&enemyBulletList);
AI_destroyAI(ai);
SDL_DestroyTexture(background);
freeAssets(&gAssets);
closeDisplay(&gDisplay);
}
