void SpecularLightingDemo::UpdateAmbientLight(const GameTime& gameTime)
{
float elapsedTime = gameTime.ElapsedGameTimeSeconds().count();
static float ambientr = mPSCBufferPerFrame.AmbientColor.x;
static float ambientg = mPSCBufferPerFrame.AmbientColor.y;
static float ambientb = mPSCBufferPerFrame.AmbientColor.z;
//Color
if (mKeyboard->IsKeyDown(Keys::NumPad1) || mGamePad->IsButtonDown(GamePadButtons::A)) {
ambientr = max(0.0f, min(ambientr + elapsedTime, 1.0f));
mPSCBufferPerFrame.AmbientColor = XMFLOAT4(ambientr, ambientg, ambientb, 1.0f);
}
else if (mKeyboard->IsKeyDown(Keys::D1) || mGamePad->IsButtonDown(GamePadButtons::X)) {
ambientr = max(0.0f, min(ambientr - elapsedTime, 1.0f));
mPSCBufferPerFrame.AmbientColor = XMFLOAT4(ambientr, ambientg, ambientb, 1.0f);
}
if (mKeyboard->IsKeyDown(Keys::NumPad2) || mGamePad->IsButtonDown(GamePadButtons::A)) {
ambientg = max(0.0f, min(ambientg + elapsedTime, 1.0f));
mPSCBufferPerFrame.AmbientColor = XMFLOAT4(ambientr, ambientg, ambientb, 1.0f);
}
else if (mKeyboard->IsKeyDown(Keys::D2) || mGamePad->IsButtonDown(GamePadButtons::X)) {
ambientg = max(0.0f, min(ambientg - elapsedTime, 1.0f));
mPSCBufferPerFrame.AmbientColor = XMFLOAT4(ambientr, ambientg, ambientb, 1.0f);
}
if (mKeyboard->IsKeyDown(Keys::NumPad3) || mGamePad->IsButtonDown(GamePadButtons::A)) {
ambientb = max(0.0f, min(ambientb + elapsedTime, 1.0f));
mPSCBufferPerFrame.AmbientColor = XMFLOAT4(ambientr, ambientg, ambientb, 1.0f);
}
else if (mKeyboard->IsKeyDown(Keys::D3) || mGamePad->IsButtonDown(GamePadButtons::X)) {
ambientb = max(0.0f, min(ambientb - elapsedTime, 1.0f));
mPSCBufferPerFrame.AmbientColor = XMFLOAT4(ambientr, ambientg, ambientb, 1.0f);
}
}
void SpecularLightingDemo::Update(const GameTime & gameTime)
{
static float angle = 0.0f;
if (mAnimationEnabled)
{
angle += gameTime.ElapsedGameTimeSeconds().count() * ModelRotationRate;
XMStoreFloat4x4(&mWorldMatrix, XMMatrixRotationY(angle));
}
if (mKeyboard != nullptr && mKeyboard->WasKeyPressedThisFrame(Keys::Space))
{
ToggleAnimation();
}
if (mGamePad != nullptr)
{
auto& gamePadState = mGamePad->CurrentState();
if (gamePadState.IsConnected())
{
if (mGamePad->WasButtonPressedThisFrame(GamePadButtons::Start))
{
ToggleGamePadControls();
}
if (mGamePad->WasButtonPressedThisFrame(GamePadButtons::LeftStick))
{
ToggleAnimation();
}
UpdateAmbientLight(gameTime);
UpdateSpecularLight(gameTime);
UpdateDirectionalLight(gameTime, gamePadState);
}
}
mProxyModel->Update(gameTime);
}
void SpecularLightingDemo::UpdateDirectionalLight(const GameTime& gameTime, const GamePad::State& gamePadState)
{
float elapsedTime = gameTime.ElapsedGameTimeSeconds().count();
static float lightr = mPSCBufferPerFrame.LightColor.x;
static float lightg = mPSCBufferPerFrame.LightColor.y;
static float lightb = mPSCBufferPerFrame.LightColor.z;
//Color
if (mKeyboard->IsKeyDown(Keys::NumPad4) || mGamePad->IsButtonDown(GamePadButtons::Y)) {
lightr = max(0.0f, min(lightr + elapsedTime, 1.0f));
mPSCBufferPerFrame.LightColor = XMFLOAT4(lightr, lightg, lightb, 1.0f);
}
else if (mKeyboard->IsKeyDown(Keys::D4) || mGamePad->IsButtonDown(GamePadButtons::B)) {
lightr = max(0.0f, min(lightr - elapsedTime, 1.0f));
mPSCBufferPerFrame.LightColor = XMFLOAT4(lightr, lightg, lightb, 1.0f);
}
if (mKeyboard->IsKeyDown(Keys::NumPad5) || mGamePad->IsButtonDown(GamePadButtons::Y)) {
lightg = max(0.0f, min(lightg + elapsedTime, 1.0f));
mPSCBufferPerFrame.LightColor = XMFLOAT4(lightr, lightg, lightb, 1.0f);
}
else if (mKeyboard->IsKeyDown(Keys::D5) || mGamePad->IsButtonDown(GamePadButtons::B)) {
lightg = max(0.0f, min(lightg - elapsedTime, 1.0f));
mPSCBufferPerFrame.LightColor = XMFLOAT4(lightr, lightg, lightb, 1.0f);
}
if (mKeyboard->IsKeyDown(Keys::NumPad6) || mGamePad->IsButtonDown(GamePadButtons::Y)) {
lightb = max(0.0f, min(lightb + elapsedTime, 1.0f));
mPSCBufferPerFrame.LightColor = XMFLOAT4(lightr, lightg, lightb, 1.0f);
}
else if (mKeyboard->IsKeyDown(Keys::D6) || mGamePad->IsButtonDown(GamePadButtons::B)) {
lightb = max(0.0f, min(lightb - elapsedTime, 1.0f));
mPSCBufferPerFrame.LightColor = XMFLOAT4(lightr, lightg, lightb, 1.0f);
}
if (mUseGamePadForDirectionalLight)
{
// Rotate directional light
XMFLOAT2 rotationAmount;
rotationAmount.x = -gamePadState.thumbSticks.rightX * LightRotationRate.x * elapsedTime;
rotationAmount.y = gamePadState.thumbSticks.rightY * LightRotationRate.y * elapsedTime;
XMMATRIX lightRotationMatrix = XMMatrixIdentity();
if (rotationAmount.x != 0)
{
lightRotationMatrix = XMMatrixRotationY(rotationAmount.x);
}
if (rotationAmount.y != 0)
{
XMMATRIX lightRotationAxisMatrix = XMMatrixRotationAxis(mDirectionalLight->RightVector(), rotationAmount.y);
lightRotationMatrix *= lightRotationAxisMatrix;
}
if (rotationAmount.x != 0.0f || rotationAmount.y != 0.0f)
{
mDirectionalLight->ApplyRotation(lightRotationMatrix);
mProxyModel->ApplyRotation(lightRotationMatrix);
mPSCBufferPerFrame.LightDirection = mDirectionalLight->DirectionToLight();
mGame->Direct3DDeviceContext()->UpdateSubresource(mPSConstantBufferPF.Get(), 0, nullptr, &mPSCBufferPerFrame, 0, 0);
}
}
}
