GameState::GameState(SDL_Window& window)
:
IState(window),
score_(0),
retCause_(0)
{
shotTime_=time(0);
background_ = IMG_LoadTexture(ren_, "Sprites/background.png");
if (background_ == 0) {
throw std::runtime_error(SDL_GetError());
}
font_ = TTF_OpenFont("sample.ttf", 20);
catChar_ = new Character(*ren_, "Sprites/catsheet.png");
addNewEnemies();
}
void
GameState::moveItems()
{
for (unsigned int i = 0; i < shotList_.size(); i++) {
shotList_[i]->move();
if(missileCollision(shotList_[i])) shotList_[i]->boom();
}
for (unsigned int i = 0; i < enemyList_.size(); i++) {
SDL_Rect rect = catChar_->getDestination();
if (enemyList_[i]->isCollide(rect)) {
LOG("Game ended with score : " + std::to_string(score_));
run_ = false;
}
enemyList_[i]->move();
}
catChar_->move();
enemyList_.erase(std::remove_if(std::begin(enemyList_), std::end(enemyList_), isEnemyFinished), std::end(enemyList_));
shotList_.erase(std::remove_if(std::begin(shotList_), std::end(shotList_), isMissileFinished), std::end(shotList_));
addNewEnemies();
}
void World::update(sf::Time dt)
{
// Scroll the world, reset player velocity
mWorldView.move(0.f, mScrollSpeed * dt.asSeconds());
mPlayerSpaceship->setVelocity(0.f, 0.f);
// Check for delete enemies
destroyEntitiesOutsideView();
// Forward commands to scene graph, adapt velocity (scrolling, diagonal correction)
while (!mCommandQueue.isEmpty())
mSceneGraph.onCommand(mCommandQueue.pop(), dt);
adaptPlayerVelocity();
// Handle our collision.
handleCollisions();
// Remove all destroyed entities, and create new.
mSceneGraph.removeWrecks();
// Templates for add new Enemies.
addNewEnemies(dt);
spawnEnemies();
// Check, for edding new world texture.
updateWorldBounds();
// Regular update step, adapt position (correct if outside view)
mSceneGraph.update(dt, mCommandQueue);
adaptPlayerPosition();
// Update Points and Health.
updateText(dt);
mBattlifieldBounds.setPosition(getBattlefieldBounds().left, getBattlefieldBounds().top);
// Update ScrollSpeed
mScrollSpeed -= ScrollSpeedAccelerate * dt.asSeconds();
}
void _entryPoint()
{
struct Services services;
/****************************> Get Handles <****************************/
//Get a handle to coreinit.rpl
OSDynLoad_Acquire("coreinit.rpl", &services.coreinit_handle);
//Get a handle to vpad.rpl */
unsigned int vpad_handle;
OSDynLoad_Acquire("vpad.rpl", &vpad_handle);
/****************************> External Prototypes <****************************/
//VPAD functions
int(*VPADRead)(int controller, VPADData *buffer, unsigned int num, int *error);
//OS functions
void(*_Exit)();
/****************************> Exports <****************************/
//VPAD functions
OSDynLoad_FindExport(vpad_handle, 0, "VPADRead", &VPADRead);
// Draw functions
OSDynLoad_FindExport(services.coreinit_handle, 0, "OSScreenPutPixelEx", &services.OSScreenPutPixelEx);
OSDynLoad_FindExport(services.coreinit_handle, 0, "DCFlushRange", &services.DCFlushRange);
OSDynLoad_FindExport(services.coreinit_handle, 0, "OSScreenFlipBuffersEx", &services.OSScreenFlipBuffersEx);
OSDynLoad_FindExport(services.coreinit_handle, 0, "OSScreenGetBufferSizeEx", &services.OSScreenGetBufferSizeEx);
OSDynLoad_FindExport(services.coreinit_handle, 0, "OSScreenPutFontEx", &services.OSScreenPutFontEx);
OSDynLoad_FindExport(services.coreinit_handle, 0, "OSScreenClearBufferEx", &services.OSScreenClearBufferEx);
//OS functions
OSDynLoad_FindExport(services.coreinit_handle, 0, "_Exit", &_Exit);
cleanSlate(&services);
/****************************> Globals <****************************/
struct SpaceGlobals mySpaceGlobals;
//Flag for restarting the entire game.
mySpaceGlobals.restart = 1;
mySpaceGlobals.services = &services;
// initial state is title screen
mySpaceGlobals.state = 1;
mySpaceGlobals.titleScreenRefresh = 1;
//Flags for render states
mySpaceGlobals.renderResetFlag = 0;
mySpaceGlobals.menuChoice = 0; // 0 is play, 1 is password
// setup the password list
unsigned int pwSeed = 27;
int x;
for (x=0; x<100; x++)
mySpaceGlobals.passwordList[x] = (int)(prand(&pwSeed)*100000);
// set the starting time
int64_t (*OSGetTime)();
OSDynLoad_FindExport(services.coreinit_handle, 0, "OSGetTime", &OSGetTime);
mySpaceGlobals.seed = OSGetTime();
/****************************> VPAD Loop <****************************/
int error;
VPADData vpad_data;
// decompress compressed things into their arrays, final argument is the transparent color in their palette
decompress_sprite(3061, 200, 100, compressed_title, mySpaceGlobals.title, 39);
decompress_sprite(511, 36, 36, compressed_ship, mySpaceGlobals.orig_ship, 14);
decompress_sprite(206, 23, 23, compressed_enemy, mySpaceGlobals.enemy, 9);
// setup palette and transparent index
mySpaceGlobals.curPalette = ship_palette;
mySpaceGlobals.transIndex = 14;
// initialize starfield for this game
initStars(&mySpaceGlobals);
mySpaceGlobals.invalid = 1;
while (1)
{
VPADRead(0, &vpad_data, 1, &error);
//Get the status of the gamepad
mySpaceGlobals.button = vpad_data.btn_hold;
mySpaceGlobals.rstick = vpad_data.rstick;
mySpaceGlobals.lstick = vpad_data.lstick;
mySpaceGlobals.touched = vpad_data.tpdata.touched;
if (mySpaceGlobals.touched == 1)
{
mySpaceGlobals.touchX = ((vpad_data.tpdata.x / 9) - 11);
mySpaceGlobals.touchY = ((3930 - vpad_data.tpdata.y) / 16);
}
if (mySpaceGlobals.restart == 1)
{
reset(&mySpaceGlobals);
mySpaceGlobals.restart = 0;
}
if (mySpaceGlobals.state == 1) // title screen
{
displayTitle(&mySpaceGlobals);
doMenuAction(&mySpaceGlobals);
}
else if (mySpaceGlobals.state == 2) // password screen
{
displayPasswordScreen(&mySpaceGlobals);
doPasswordMenuAction(&mySpaceGlobals);
}
else if (mySpaceGlobals.state == 3) // pause screen
{
displayPause(&mySpaceGlobals);
doMenuAction(&mySpaceGlobals);
}
else if (mySpaceGlobals.state == 4) // game over screen
{
displayGameOver(&mySpaceGlobals);
doMenuAction(&mySpaceGlobals);
}
else // game play
{
//Update location of player1 and 2 paddles
p1Move(&mySpaceGlobals);
// perform any shooting
p1Shoot(&mySpaceGlobals);
// handle any collisions
handleCollisions(&mySpaceGlobals);
// do explosions
handleExplosions(&mySpaceGlobals);
// if we're out of lives, break
if (mySpaceGlobals.lives <= 0 && mySpaceGlobals.state == 4)
continue;
// add any new enemies
addNewEnemies(&mySpaceGlobals);
//Render the scene
render(&mySpaceGlobals);
// check for pausing
checkPause(&mySpaceGlobals);
}
//To exit the game
if (mySpaceGlobals.button&BUTTON_HOME)
{
break;
}
}
cleanSlate(mySpaceGlobals.services);
_Exit();
}