bool Rect::contains(const Int2 &point) const
{
return (point.getX() >= this->getLeft()) &&
(point.getY() >= this->getTop()) &&
(point.getX() < this->getRight()) &&
(point.getY() < this->getBottom());
}
Renderer::Renderer(int width, int height, bool fullscreen, double letterboxAspect)
{
Debug::mention("Renderer", "Initializing.");
assert(width > 0);
assert(height > 0);
this->letterboxAspect = letterboxAspect;
// Initialize window. The SDL_Surface is obtained from this window.
this->window = [width, height, fullscreen]()
{
std::string title = "OpenTESArena";
return fullscreen ?
SDL_CreateWindow(title.c_str(), SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED, 0, 0, SDL_WINDOW_FULLSCREEN_DESKTOP) :
SDL_CreateWindow(title.c_str(), SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED, width, height, SDL_WINDOW_RESIZABLE);
}();
Debug::check(this->window != nullptr, "Renderer", "SDL_CreateWindow");
// Initialize renderer context.
this->renderer = this->createRenderer();
// Use window dimensions, just in case it's fullscreen and the given width and
// height are ignored.
Int2 windowDimensions = this->getWindowDimensions();
// Initialize native frame buffer.
this->nativeTexture = this->createTexture(Renderer::DEFAULT_PIXELFORMAT,
SDL_TEXTUREACCESS_TARGET, windowDimensions.getX(), windowDimensions.getY());
Debug::check(this->nativeTexture != nullptr, "Renderer",
"Couldn't create native frame buffer, " + std::string(SDL_GetError()));
// Initialize 320x200 frame buffer.
this->originalTexture = this->createTexture(Renderer::DEFAULT_PIXELFORMAT,
SDL_TEXTUREACCESS_TARGET, Renderer::ORIGINAL_WIDTH, Renderer::ORIGINAL_HEIGHT);
// Don't initialize the game world buffer until the 3D renderer is initialized.
this->clProgram = nullptr;
this->gameWorldTexture = nullptr;
this->fullGameWindow = false;
// Set the original frame buffer to not use transparency by default.
this->useTransparencyBlending(false);
}
Int2 Renderer::originalPointToNative(const Int2 &originalPoint) const
{
// From original point to letterbox point.
double originalXPercent = static_cast<double>(originalPoint.getX()) /
static_cast<double>(Renderer::ORIGINAL_WIDTH);
double originalYPercent = static_cast<double>(originalPoint.getY()) /
static_cast<double>(Renderer::ORIGINAL_HEIGHT);
const auto letterbox = this->getLetterboxDimensions();
Int2 letterboxPoint(
static_cast<double>(letterbox.w) * originalXPercent,
static_cast<double>(letterbox.h) * originalYPercent);
// Then from letterbox point to native point.
Int2 nativePoint(
letterboxPoint.getX() + letterbox.x,
letterboxPoint.getY() + letterbox.y);
return nativePoint;
}
Int2 Renderer::nativePointToOriginal(const Int2 &nativePoint) const
{
// From native point to letterbox point.
Int2 windowDimensions = this->getWindowDimensions();
const auto letterbox = this->getLetterboxDimensions();
Int2 letterboxPoint(
nativePoint.getX() - letterbox.x,
nativePoint.getY() - letterbox.y);
// Then from letterbox point to original point.
double letterboxXPercent = static_cast<double>(letterboxPoint.getX()) /
static_cast<double>(letterbox.w);
double letterboxYPercent = static_cast<double>(letterboxPoint.getY()) /
static_cast<double>(letterbox.h);
Int2 originalPoint(
static_cast<double>(Renderer::ORIGINAL_WIDTH) * letterboxXPercent,
static_cast<double>(Renderer::ORIGINAL_HEIGHT) * letterboxYPercent);
return originalPoint;
}
SDL_Surface *Renderer::getScreenshot() const
{
const Int2 dimensions = this->getWindowDimensions();
SDL_Surface *screenshot = Surface::createSurfaceWithFormat(
dimensions.getX(), dimensions.getY(),
Renderer::DEFAULT_BPP, Renderer::DEFAULT_PIXELFORMAT);
int status = SDL_RenderReadPixels(this->renderer, nullptr,
screenshot->format->format, screenshot->pixels, screenshot->pitch);
if (status == 0)
{
Debug::mention("Renderer", "Screenshot taken.");
}
else
{
Debug::crash("Renderer", "Couldn't take screenshot, " +
std::string(SDL_GetError()));
}
return screenshot;
}
GameWorldPanel::GameWorldPanel(GameState *gameState)
: Panel(gameState)
{
assert(gameState->gameDataIsActive());
this->playerNameTextBox = [gameState]()
{
int x = 17;
int y = 154;
Color color(215, 121, 8);
std::string text = gameState->getGameData()->getPlayer().getFirstName();
auto &font = gameState->getFontManager().getFont(FontName::Char);
auto alignment = TextAlignment::Left;
return std::unique_ptr<TextBox>(new TextBox(
x,
y,
color,
text,
font,
alignment,
gameState->getRenderer()));
}();
this->automapButton = []()
{
auto function = [](GameState *gameState)
{
std::unique_ptr<Panel> automapPanel(new AutomapPanel(gameState));
gameState->setPanel(std::move(automapPanel));
};
return std::unique_ptr<Button>(new Button(function));
}();
this->characterSheetButton = []()
{
auto function = [](GameState *gameState)
{
std::unique_ptr<Panel> sheetPanel(new CharacterPanel(gameState));
gameState->setPanel(std::move(sheetPanel));
};
return std::unique_ptr<Button>(new Button(function));
}();
this->logbookButton = []()
{
auto function = [](GameState *gameState)
{
std::unique_ptr<Panel> logbookPanel(new LogbookPanel(gameState));
gameState->setPanel(std::move(logbookPanel));
};
return std::unique_ptr<Button>(new Button(function));
}();
this->pauseButton = []()
{
auto function = [](GameState *gameState)
{
std::unique_ptr<Panel> pausePanel(new PauseMenuPanel(gameState));
gameState->setPanel(std::move(pausePanel));
};
return std::unique_ptr<Button>(new Button(function));
}();
this->worldMapButton = []()
{
auto function = [](GameState *gameState)
{
std::unique_ptr<Panel> mapPanel(new WorldMapPanel(gameState));
gameState->setPanel(std::move(mapPanel));
};
return std::unique_ptr<Button>(new Button(function));
}();
// Set all of the cursor regions relative to the current window.
const Int2 screenDims = gameState->getRenderer().getWindowDimensions();
this->updateCursorRegions(screenDims.getX(), screenDims.getY());
}
void GameWorldPanel::render(Renderer &renderer)
{
assert(this->getGameState()->gameDataIsActive());
// Clear full screen.
renderer.clearNative();
renderer.clearOriginal();
// Draw game world onto the native frame buffer. The game world buffer
// might not completely fill up the native buffer (bottom corners), so
// clearing the native buffer beforehand is still necessary.
renderer.renderWorld();
// Set screen palette.
auto &textureManager = this->getGameState()->getTextureManager();
textureManager.setPalette(PaletteFile::fromName(PaletteName::Default));
// Set original frame buffer blending to true.
renderer.useTransparencyBlending(true);
// Draw game world interface.
const auto &gameInterface = textureManager.getTexture(
TextureFile::fromName(TextureName::GameWorldInterface));
renderer.drawToOriginal(gameInterface.get(), 0,
Renderer::ORIGINAL_HEIGHT - gameInterface.getHeight());
// Draw player portrait.
const auto &player = this->getGameState()->getGameData()->getPlayer();
const auto &headsFilename = PortraitFile::getHeads(
player.getGenderName(), player.getRaceName(), true);
const auto &portrait = textureManager.getTextures(headsFilename)
.at(player.getPortraitID());
const auto &status = textureManager.getTextures(
TextureFile::fromName(TextureName::StatusGradients)).at(0);
renderer.drawToOriginal(status.get(), 14, 166);
renderer.drawToOriginal(portrait.get(), 14, 166);
// Draw compass slider (the actual headings). +X is north, +Z is east.
// Should do some sin() and cos() functions to get the pixel offset.
auto *compassSlider = textureManager.getSurface(
TextureFile::fromName(TextureName::CompassSlider));
Texture compassSliderSegment = [&renderer, &compassSlider]()
{
SDL_Surface *segmentTemp = Surface::createSurfaceWithFormat(32, 7,
Renderer::DEFAULT_BPP, Renderer::DEFAULT_PIXELFORMAT);
SDL_Rect clipRect;
clipRect.x = 60; // Arbitrary offset until compass rotation works.
clipRect.y = 0;
clipRect.w = segmentTemp->w;
clipRect.h = segmentTemp->h;
SDL_BlitSurface(compassSlider, &clipRect, segmentTemp, nullptr);
SDL_Texture *segment = renderer.createTextureFromSurface(segmentTemp);
SDL_FreeSurface(segmentTemp);
return Texture(segment);
}();
renderer.drawToOriginal(compassSliderSegment.get(),
(Renderer::ORIGINAL_WIDTH / 2) - (compassSliderSegment.getWidth() / 2),
compassSliderSegment.getHeight());
// Draw compass frame over the headings.
const auto &compassFrame = textureManager.getTexture(
TextureFile::fromName(TextureName::CompassFrame));
renderer.drawToOriginal(compassFrame.get(),
(Renderer::ORIGINAL_WIDTH / 2) - (compassFrame.getWidth() / 2), 0);
// If the player's class can't use magic, show the darkened spell icon.
if (!player.getCharacterClass().canCastMagic())
{
const auto &nonMagicIcon = textureManager.getTexture(
TextureFile::fromName(TextureName::NoSpell));
renderer.drawToOriginal(nonMagicIcon.get(), 91, 177);
}
// Draw text: player name.
renderer.drawToOriginal(this->playerNameTextBox->getTexture(),
this->playerNameTextBox->getX(), this->playerNameTextBox->getY());
// Scale the original frame buffer onto the native one.
// This shouldn't be done for the game world interface because it needs to
// clamp to the screen edges, not the letterbox edges.
// Fix this eventually... again.
renderer.drawOriginalToNative();
// Draw cursor, depending on its position on the screen.
const Int2 mousePosition = this->getMousePosition();
const Texture &cursor = [this, &mousePosition, &textureManager]()
-> const Texture& // Interesting how this return type isn't deduced in MSVC.
{
// See which arrow cursor region the native mouse is in.
for (int i = 0; i < this->nativeCursorRegions.size(); ++i)
{
if (this->nativeCursorRegions.at(i)->contains(mousePosition))
{
return textureManager.getTextures(
TextureFile::fromName(TextureName::ArrowCursors)).at(i);
}
}
// If not in any of the arrow regions, use the default sword cursor.
return textureManager.getTexture(
TextureFile::fromName(TextureName::SwordCursor));
}();
renderer.drawToNative(cursor.get(), mousePosition.getX(), mousePosition.getY(),
static_cast<int>(cursor.getWidth() * this->getCursorScale()),
static_cast<int>(cursor.getHeight() * this->getCursorScale()));
// Set the transparency blending back to normal (off).
renderer.useTransparencyBlending(false);
}
void GameWorldPanel::handleMouse(double dt)
{
static_cast<void>(dt);
const auto &renderer = this->getGameState()->getRenderer();
const uint32_t mouse = SDL_GetRelativeMouseState(nullptr, nullptr);
const bool leftClick = (mouse & SDL_BUTTON(SDL_BUTTON_LEFT)) != 0;
if (leftClick)
{
// Horizontal camera movement rough draft. The original camera controls for
// Arena are bad, but I am simulating them before thinking of adding modern
// 3D camera support (like Daggerfall) as an option.
const Int2 screenDimensions = renderer.getWindowDimensions();
const Int2 mousePosition = this->getMousePosition();
// Strength of turning is determined by proximity of the mouse cursor to
// the left or right screen edge.
const double dx = [this, &mousePosition, &screenDimensions]()
{
const int mouseX = mousePosition.getX();
// Native cursor regions (scaled to the current window).
const Rect &middleLeft = *this->nativeCursorRegions.at(3).get();
const Rect &middleRight = *this->nativeCursorRegions.at(5).get();
// Measure the magnitude of rotation. -1.0 is left, 1.0 is right.
double percent = 0.0;
if (middleLeft.contains(mousePosition))
{
percent = -1.0 + (static_cast<double>(mouseX) / middleLeft.getWidth());
}
else if (middleRight.contains(mousePosition))
{
percent = static_cast<double>(mouseX - middleRight.getLeft()) /
middleRight.getWidth();
}
// Reduce the magnitude by a lot as a baseline. Sensitivity can be
// tweaked in the options.
percent *= 0.010;
// No NaNs or infinities allowed.
return std::isfinite(percent) ? percent : 0.0;
}();
auto &player = this->getGameState()->getGameData()->getPlayer();
const auto &options = this->getGameState()->getOptions();
// Yaw the camera left or right. No vertical movement in classic camera mode.
player.rotate(dx, 0.0, options.getHorizontalSensitivity(),
options.getVerticalSensitivity(), options.getVerticalFOV());
}
// Later in development, a 3D camera would be fun (more like Daggerfall), but
// for now the objective is to more closely resemble the original game, so the
// rough draft 3D camera code below is commented out as a result.
// Make the camera look around.
/*int dx, dy;
const auto mouse = SDL_GetRelativeMouseState(&dx, &dy);
bool leftClick = (mouse & SDL_BUTTON(SDL_BUTTON_LEFT)) != 0;
bool rightClick = (mouse & SDL_BUTTON(SDL_BUTTON_RIGHT)) != 0;
bool turning = ((dx != 0) || (dy != 0)) && leftClick;
if (turning)
{
auto dimensions = this->getGameState()->getRenderer().getWindowDimensions();
double dxx = static_cast<double>(dx) / static_cast<double>(dimensions.getX());
double dyy = static_cast<double>(dy) / static_cast<double>(dimensions.getY());
// Pitch and/or yaw the camera.
const auto &options = this->getGameState()->getOptions();
this->getGameState()->getGameData()->getPlayer().rotate(dxx, -dyy,
options.getHorizontalSensitivity(), options.getVerticalSensitivity(),
options.getVerticalFOV());
}*/
}