void Submarine::move(GameLevel& context) {
if(context.isGameover()) { return; }
// control
static const int SPD = 1 << 7;
static const int R2 = 90; // 0.5/sqrt(2) / (1/256)
if(context.core.pressed(BTN_U) && context.core.pressed(BTN_L)) {
x -= R2;
y -= R2;
}
else if(context.core.pressed(BTN_U) && context.core.pressed(BTN_R)) {
x += R2;
y -= R2;
}
else if(context.core.pressed(BTN_D) && context.core.pressed(BTN_L)) {
x -= R2;
y += R2;
}
else if(context.core.pressed(BTN_D) && context.core.pressed(BTN_R)) {
x += R2;
y += R2;
}
else if(context.core.pressed(BTN_U)) {
y -= SPD;
}
else if(context.core.pressed(BTN_L)) {
x -= SPD;
}
else if(context.core.pressed(BTN_R)) {
x += SPD;
}
else if(context.core.pressed(BTN_D)) {
y += SPD;
}
// clamping into field
static const fixed MARGIN = 6;
x = Clamp(x, 0, (SCREEN_WIDTH - MARGIN) << 8);
y = Clamp(y, (MARGIN - H) << 8, (SCREEN_HEIGHT - MARGIN) << 8);
// launching torpedo
if(extraLives >= 0 && (context.core.pushed(BTN_A) || context.core.pushed(BTN_B))) {
context.launchTorpedo((int)fieldX() + 10, fieldY() + 1);
}
//firing auto shot
#ifdef LOW_FLASH_MEMORY
if(context.frameCount() % 5 == 0) {
context.fireAutoShot(fieldX() + 3, fieldY() - 3);
}
#else
if(context.lookForEnemy() && context.frameCount() % 5 == 0) {
context.fireAutoShot(fieldX() + 3, fieldY() - 3);
}
#endif
// updating armor timer
if(armor > 0) { --armor; }
}
void Submarine::draw(GameLevel& context) const {
if(armor == 0 || (extraLives >= 0 && context.frameCount() / 3 % 2 == 0)) {
context.core.drawBitmap(fieldX() - 1, fieldY() - 2, bitmapSubmarine, 2);
if(context.frameCount() % ECHO_CYCLE > 30) { // sustain: 30 frames
context.core.drawPixel(fieldX() + 6, fieldY() - 1, 1);
}
}
//context.getArduboy().drawRect(x, y, W, H, 0);
}
void Bullet::move() {
x += vx;
y += vy;
// frame out
static const char MARGIN = 4;
if(
fieldX() < -MARGIN || (byte)fieldX() > SCREEN_WIDTH + MARGIN ||
fieldY() < -MARGIN || (byte)fieldY() > SCREEN_HEIGHT + MARGIN
) {
inactivate();
}
}
void Bullet::draw(GameLevel& context) const {
// ToDo: async animation (if there are enough memories)
const byte frame = context.frameCount() / 3 % 2;
if(type % 2 == 0) {
const byte* bitmaps[] = {bitmapMbullet0, bitmapMbullet1};
context.core.drawBitmap(fieldX() - bitmapMbullet0[0]/2, fieldY() - bitmapMbullet0[1]/2, bitmaps[frame], 2);
}
else {
const byte* bitmaps[] = {bitmapSbullet0, bitmapSbullet1};
context.core.drawBitmap(fieldX() - bitmapSbullet0[0]/2, fieldY() - bitmapSbullet0[1]/2, bitmaps[frame], 2);
}
//arduboy.drawPixel(x, y, 0);
}
void SolvedElectrostaticSystem::findField() {
fieldX = doubleGrid::Zero(iMax-iMin+1, jMax-jMin+1); // X components of field
fieldY = doubleGrid::Zero(iMax-iMin+1, jMax-jMin+1); // Y components of field
field = doubleGrid::Zero(iMax-iMin+1, jMax-jMin+1); // Magnitude of field
for(int i=iMin; i<=iMax; i++) {
for(int j=jMin; j<=jMax; j++) {
// Components in i direction
if(i==iMax) fieldX(i-iMin, j-jMin) = getPotentialIJ(i,j) - getPotentialIJ(i-1,j);
else if(i==iMin) fieldX(i-iMin, j-jMin) = getPotentialIJ(i+1,j) -getPotentialIJ(i,j);
else fieldX(i-iMin, j-jMin) = (getPotentialIJ(i+1,j)-getPotentialIJ(i-1,j))/2;
// Components in j direction
if(j==jMax) fieldY(i-iMin, j-jMin) = getPotentialIJ(i,j) - getPotentialIJ(i,j-1);
else if(j==jMin) fieldY(i-iMin, j-jMin) = getPotentialIJ(i,j+1) -getPotentialIJ(i,j);
else fieldY(i-iMin, j-jMin) = (getPotentialIJ(i,j+1)-getPotentialIJ(i,j-1))/2;
// Full field
field(i-iMin, j-jMin) = sqrt( pow(fieldX(i-iMin, j-jMin), 2) +
pow(fieldY(i-iMin, j-jMin), 2) );
}
}
fieldFound = true;
}
void Submarine::onHit(GameLevel& context) {
if(armor <= 0) {
if(extraLives >= 0) {
context.spawnParticle(fieldX() - 2, fieldY() - 4, PARTICLE_EXPLOSION);
context.core.tone(185, 250);
}
--extraLives;
if(extraLives < 0) {
context.setGameover();
// ToDo: add gameover sfx
inactivate();
}
armor = ARMOR_FRAMES;
}
}
void Bullet::onHit(GameLevel& context) {
#ifndef LOW_FLASH_MEMORY
context.core.drawBitmap(fieldX() - bitmapCircle[0]/2, fieldY() - bitmapCircle[1]/2, bitmapCircle, 2);
#endif
inactivate();
}
