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(svn r27159) -Codechange: Simplify mapping from smallmap to viewport coordinates by duplicating less code.

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frosch 2015-02-22 14:12:34 +00:00
parent 06d1d50884
commit fc72d3dc8f
1 changed files with 1 additions and 18 deletions
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19
src/smallmap_gui.cpp
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@ -1390,24 +1390,7 @@ int SmallMapWindow::GetPositionOnLegend(Point pt)
Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
int sub;
pt = this->PixelToTile(pt.x - wid->pos_x, pt.y - wid->pos_y, &sub);
pt = RemapCoords(this->scroll_x + pt.x * TILE_SIZE + this->zoom * (TILE_SIZE - sub * TILE_SIZE / 4),
this->scroll_y + pt.y * TILE_SIZE + sub * this->zoom * TILE_SIZE / 4, 0);
/* correct y coordinate according to the height level at the chosen tile
* - so far we assumed height zero. Calculations here according to
* TranslateXYToTileCoord in viewport.cpp */
Point pt_scaled = {pt.x / (int)(4 * TILE_SIZE), pt.y / (int)(2 * TILE_SIZE)};
Point tile_coord = {pt_scaled.y - pt_scaled.x, pt_scaled.y + pt_scaled.x};
if (tile_coord.x >= 0 && tile_coord.y >= 0
&& tile_coord.x < (int)MapMaxX() && tile_coord.y < (int)MapMaxY()) {
int clicked_tile_height = TileHeight(TileXY(tile_coord.x, tile_coord.y));
pt.y -= clicked_tile_height * TILE_HEIGHT;
}
w->viewport->follow_vehicle = INVALID_VEHICLE;
w->viewport->dest_scrollpos_x = pt.x - (w->viewport->virtual_width >> 1);
w->viewport->dest_scrollpos_y = pt.y - (w->viewport->virtual_height >> 1);
ScrollWindowTo(this->scroll_x + pt.x * TILE_SIZE, this->scroll_y + pt.y * TILE_SIZE, -1, w);
this->SetDirty();
break;