void gameInit()
#endif
{
if (!g_inited)
{
Timer::init();
g_timer.start();
#if CK_PLATFORM_ANDROID
CkConfig config(env, activity);
config.useJavaAudio = true;
#else
CkConfig config;
#endif
CkInit(&config);
// mute the volume until the first update;
// the volumes & pans of 3D sounds won't be correct until then.
CkMixer::getMaster()->setVolume(0.0f);
// sound
g_music = CkSound::newStreamSound("music.cks");
g_bank = CkBank::newBank("game.ckb");
g_pointSound = CkSound::newBankSound(g_bank, "point");
g_engineSound = CkSound::newBankSound(g_bank, "engine");
g_engineSound->setLoopCount(-1);
g_engineSound->setPaused(true);
g_engineSound->play();
g_music->setLoopCount(-1);
g_music->setVolume(0.2f);
g_music->play();
g_pointSound->setVolume(0.6f);
CkSound::set3dAttenuation(kCkAttenuationMode_InvDistanceSquared, 0.5f, 10.0f, 0.05f);
// game objects
for (int i = 0; i < kNumCubes; ++i)
{
// cube sits just above ground plane
Cube* cube = new Cube();
placeCube(cube);
g_cubes[i] = cube;
}
g_ground = new GroundPlane();
g_ship = new Ship();
// gameGlInit() is called when the drawing surface is created.
g_inited = true;
}
}
void gameRender()
{
// update simulation
float dt = g_timer.getElapsedMs() * 0.001f;
g_timer.reset();
// filter motion so you slow down gradually when you lift your finger off the screen
const float kChangeFactor = 0.1f;
g_playerPosChange = g_playerPosChangeTarget * kChangeFactor + g_playerPosChange * (1.0f - kChangeFactor);
g_playerAngleChange = g_playerAngleChangeTarget * kChangeFactor + g_playerAngleChange * (1.0f - kChangeFactor);
// update engine sound
g_engineSound->setPaused(g_playerPosChange == 0.0f);
float normSpeed = fabs(g_playerPosChange / kPosChangeMax);
g_engineSound->setPitchShift(normSpeed*8);
g_engineSound->setVolume(normSpeed * 0.4f);
// update player position
Vector3 forwardDir(sinf(g_playerAngle), 0.0f, cosf(g_playerAngle));
Vector3 dr;
Vector3::multiply(forwardDir, g_playerPosChange*dt, dr);
Vector3::add(g_playerPos, dr, g_playerPos);
g_playerAngle += g_playerAngleChange * dt;
// keep player angle in [0..2pi]
if (g_playerAngle > 2.0f*M_PI)
{
g_playerAngle -= 2.0f*M_PI;
}
else if (g_playerAngle < 0.0f)
{
g_playerAngle += 2.0f*M_PI;
}
// test for hits
for (int i = 0; i < kNumCubes; ++i)
{
if (g_cubes[i]->hitTest(g_playerPos))
{
g_pointSound->play();
placeCube(g_cubes[i]);
}
}
// render
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
float fov = 0.9f;
float near = 0.1f;
float far = 100.0f;
float aspect = (float) g_width / g_height;
float top = tanf(fov*0.5) * near;
float bottom = -top;
float left = aspect * bottom;
float right = aspect * top;
glFrustumf(left, right, bottom, top, near, far);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// for landscape orientation
glRotatef(90.0f, 0.0f, 0.0f, 1.0f);
Vector3 eye;
Vector3 v;
Vector3::multiply(forwardDir, -3.0f, v);
Vector3::add(g_playerPos, v, eye);
eye.y = 1.0f;
Vector3::multiply(forwardDir, 1.0f, v);
Vector3 center;
Vector3::add(g_playerPos, v, center);
gluLookAt(eye.x, eye.y, eye.z,
center.x, center.y, center.z,
0.0f, 1.0f, 0.0f);
CkSound::set3dListenerPosition(
eye.x, eye.y, eye.z,
center.x, center.y, center.z,
0.0f, 1.0f, 0.0f);
g_ship->setTransform(g_playerPos, g_playerAngle * 180.0f / M_PI + 180.0f);
g_ship->draw();
for (int i = 0; i < kNumCubes; ++i)
{
g_cubes[i]->draw(dt);
}
g_ground->draw();
CkMixer::getMaster()->setVolume(1.0f);
CkUpdate();
}
