Position MapView::getCameraPosition()
{
if(isFollowingCreature())
return m_followingCreature->getPosition();
return m_customCameraPosition;
}
Rect MapView::calcFramebufferSource(const Size& destSize)
{
float scaleFactor = m_tileSize/(float)Otc::TILE_PIXELS;
Point drawOffset = ((m_drawDimension - m_visibleDimension - Size(1,1)).toPoint()/2) * m_tileSize;
if(isFollowingCreature())
drawOffset += m_followingCreature->getWalkOffset() * scaleFactor;
Size srcSize = destSize;
Size srcVisible = m_visibleDimension * m_tileSize;
srcSize.scale(srcVisible, Fw::KeepAspectRatio);
drawOffset.x += (srcVisible.width() - srcSize.width()) / 2;
drawOffset.y += (srcVisible.height() - srcSize.height()) / 2;
return Rect(drawOffset, srcSize);
}
void MapView::draw(const Rect& rect)
{
// update visible tiles cache when needed
if(m_mustUpdateVisibleTilesCache || m_updateTilesPos > 0)
updateVisibleTilesCache(m_mustUpdateVisibleTilesCache ? 0 : m_updateTilesPos);
float scaleFactor = m_tileSize/(float)Otc::TILE_PIXELS;
Position cameraPosition = getCameraPosition();
int drawFlags = 0;
if(m_viewMode == NEAR_VIEW)
drawFlags = Otc::DrawGround | Otc::DrawGroundBorders | Otc::DrawWalls |
Otc::DrawItems | Otc::DrawCreatures | Otc::DrawEffects | Otc::DrawMissiles | Otc::DrawAnimations;
else
drawFlags = Otc::DrawGround | Otc::DrawGroundBorders | Otc::DrawWalls | Otc::DrawItems;
Size tileSize = Size(1,1) * m_tileSize;
if(m_mustDrawVisibleTilesCache || (drawFlags & Otc::DrawAnimations)) {
m_framebuffer->bind();
if(m_mustCleanFramebuffer) {
Rect clearRect = Rect(0, 0, m_drawDimension * m_tileSize);
g_painter->setColor(Color::black);
g_painter->drawFilledRect(clearRect);
}
g_painter->setColor(Color::white);
auto it = m_cachedVisibleTiles.begin();
auto end = m_cachedVisibleTiles.end();
for(int z=m_cachedLastVisibleFloor;z>=m_cachedFirstVisibleFloor;--z) {
while(it != end) {
const TilePtr& tile = *it;
Position tilePos = tile->getPosition();
if(tilePos.z != z)
break;
else
++it;
if(!m_drawMinimapColors)
tile->draw(transformPositionTo2D(tilePos, cameraPosition), scaleFactor, drawFlags);
else {
uint8 c = tile->getMinimapColorByte();
if(c == 0)
continue;
g_painter->setColor(Color::from8bit(c));
g_painter->drawFilledRect(Rect(transformPositionTo2D(tilePos, cameraPosition), tileSize));
}
}
if(drawFlags & Otc::DrawMissiles && !m_drawMinimapColors) {
for(const MissilePtr& missile : g_map.getFloorMissiles(z)) {
missile->draw(transformPositionTo2D(missile->getPosition(), cameraPosition), scaleFactor, drawFlags & Otc::DrawAnimations);
}
}
}
m_framebuffer->release();
// generating mipmaps each frame can be slow in older cards
//m_framebuffer->getTexture()->buildHardwareMipmaps();
m_mustDrawVisibleTilesCache = false;
}
Point drawOffset = ((m_drawDimension - m_visibleDimension - Size(1,1)).toPoint()/2) * m_tileSize;
if(isFollowingCreature())
drawOffset += m_followingCreature->getWalkOffset() * scaleFactor;
Size srcSize = rect.size();
Size srcVisible = m_visibleDimension * m_tileSize;
srcSize.scale(srcVisible, Fw::KeepAspectRatio);
drawOffset.x += (srcVisible.width() - srcSize.width()) / 2;
drawOffset.y += (srcVisible.height() - srcSize.height()) / 2;
Rect srcRect = Rect(drawOffset, srcSize);
g_painter->setColor(Color::white);
glDisable(GL_BLEND);
g_painter->setShaderProgram(m_shader);
#if 0
// debug source area
g_painter->saveAndResetState();
m_framebuffer->bind();
g_painter->setColor(Color::green);
g_painter->drawBoundingRect(srcRect, 2);
m_framebuffer->release();
g_painter->restoreSavedState();
m_framebuffer->draw(rect);
#else
m_framebuffer->draw(rect, srcRect);
#endif
g_painter->resetShaderProgram();
glEnable(GL_BLEND);
// this could happen if the player position is not known yet
if(!cameraPosition.isValid())
return;
float horizontalStretchFactor = rect.width() / (float)srcRect.width();
float verticalStretchFactor = rect.height() / (float)srcRect.height();
// avoid drawing texts on map in far zoom outs
if(m_viewMode == NEAR_VIEW && m_drawTexts) {
for(const CreaturePtr& creature : m_cachedFloorVisibleCreatures) {
Point creatureOffset = Point(16 - creature->getDisplacementX(), -3 - creature->getDisplacementY());
Position pos = creature->getPosition();
Point p = transformPositionTo2D(pos, cameraPosition) - drawOffset;
p += (creature->getDrawOffset() + creatureOffset) * scaleFactor;
p.x = p.x * horizontalStretchFactor;
p.y = p.y * verticalStretchFactor;
p += rect.topLeft();
creature->drawInformation(p, g_map.isCovered(pos, m_cachedFirstVisibleFloor), rect);
}
for(const StaticTextPtr& staticText : g_map.getStaticTexts()) {
Position pos = staticText->getPosition();
// ony draw static texts from current camera floor, unless yells
//if(pos.z != cameraPosition.z && !staticText->isYell())
// continue;
Point p = transformPositionTo2D(pos, cameraPosition) - drawOffset;
p.x = p.x * horizontalStretchFactor;
p.y = p.y * verticalStretchFactor;
p += rect.topLeft();
staticText->drawText(p, rect);
}
for(const AnimatedTextPtr& animatedText : g_map.getAnimatedTexts()) {
Position pos = animatedText->getPosition();
// only draw animated texts from visible floors
if(pos.z < m_cachedFirstVisibleFloor || pos.z > m_cachedLastVisibleFloor)
continue;
// dont draw animated texts from covered tiles
if(pos.z != cameraPosition.z && g_map.isCovered(pos, m_cachedFirstVisibleFloor))
continue;
Point p = transformPositionTo2D(pos, cameraPosition) - drawOffset;
p.x = p.x * horizontalStretchFactor;
p.y = p.y * verticalStretchFactor;
p += rect.topLeft();
animatedText->drawText(p, rect);
}
} else if(m_viewMode > NEAR_VIEW) {
// draw a cross in the center instead of our creature
/*
Known Issue: Changing Z axis causes the cross to go off a little bit.
*/
Rect vRect(0, 0, 2, 10);
Rect hRect(0, 0, 10, 2);
g_painter->setColor(Color::white);
if(!m_follow && m_followingCreature)
{
Position pos = m_followingCreature->getPosition();
Point p = transformPositionTo2D(pos, cameraPosition) - drawOffset;
p.x = p.x * horizontalStretchFactor;
p.y = p.y * verticalStretchFactor;
p += rect.topLeft();
vRect.setX(p.x); vRect.setY(p.y - 4);
hRect.setX(p.x - 4); hRect.setY(p.y);
hRect.setWidth(10); hRect.setHeight(2);
vRect.setWidth(2); vRect.setHeight(10);
}
else {
vRect.moveCenter(rect.center());
hRect.moveCenter(rect.center());
}
g_painter->drawFilledRect(vRect);
g_painter->drawFilledRect(hRect);
}
}
