void mouse_action::set_terrain_mouse_overlay(editor_display& disp, const t_translation::t_terrain & fg,
const t_translation::t_terrain & bg)
{
surface image_fg(image::get_image(disp.get_map().get_terrain_info(fg).editor_image()));
surface image_bg(image::get_image(disp.get_map().get_terrain_info(bg).editor_image()));
if (image_fg == nullptr || image_bg == nullptr) {
ERR_ED << "Missing terrain icon" << std::endl;
disp.set_mouseover_hex_overlay(nullptr);
return;
}
// Create a transparent surface of the right size.
surface image = create_neutral_surface(image_fg->w, image_fg->h);
// For efficiency the size of the tile is cached.
// We assume all tiles are of the same size.
// The zoom factor can change, so it's not cached.
// NOTE: when zooming and not moving the mouse, there are glitches.
// Since the optimal alpha factor is unknown, it has to be calculated
// on the fly, and caching the surfaces makes no sense yet.
static const fixed_t alpha = 196;
static const int size = image_fg->w;
static const int half_size = size / 2;
static const int quarter_size = size / 4;
static const int offset = 2;
static const int new_size = half_size - 2;
// Blit left side
image_fg = scale_surface(image_fg, new_size, new_size);
SDL_Rect rcDestLeft = sdl::create_rect(offset, quarter_size, 0, 0);
blit_surface ( image_fg, nullptr, image, &rcDestLeft );
// Blit right side
image_bg = scale_surface(image_bg, new_size, new_size);
SDL_Rect rcDestRight = sdl::create_rect(half_size, quarter_size, 0, 0);
blit_surface ( image_bg, nullptr, image, &rcDestRight );
//apply mask so the overlay is contained within the mouseover hex
image = mask_surface(image, image::get_hexmask());
// Add the alpha factor
image = adjust_surface_alpha(image, alpha);
// scale the image
const int zoom = disp.hex_size();
if (zoom != game_config::tile_size) {
image = scale_surface(image, zoom, zoom);
}
// Set as mouseover
disp.set_mouseover_hex_overlay(image);
}
void mouse_action::set_terrain_mouse_overlay(editor_display& disp, t_translation::t_terrain fg,
t_translation::t_terrain bg)
{
surface image_fg(image::get_image("terrain/"
+ disp.get_map().get_terrain_info(fg).editor_image() + ".png"));
surface image_bg(image::get_image("terrain/"
+ disp.get_map().get_terrain_info(bg).editor_image() + ".png"));
if (image_fg == NULL || image_bg == NULL) {
ERR_ED << "Missing terrain icon\n";
disp.set_mouseover_hex_overlay(NULL);
return;
}
// Create a transparent surface of the right size.
surface image = create_compatible_surface(image_fg, image_fg->w, image_fg->h);
SDL_FillRect(image,NULL,SDL_MapRGBA(image->format,0,0,0, 0));
// For efficiency the size of the tile is cached.
// We assume all tiles are of the same size.
// The zoom factor can change, so it's not cached.
// NOTE: when zooming and not moving the mouse, there are glitches.
// Since the optimal alpha factor is unknown, it has to be calculated
// on the fly, and caching the surfaces makes no sense yet.
static const Uint8 alpha = 196;
static const int size = image_fg->w;
static const int half_size = size / 2;
static const int quarter_size = size / 4;
static const int offset = 2;
static const int new_size = half_size - 2;
const int zoom = static_cast<int>(size * disp.get_zoom_factor());
// Blit left side
image_fg = scale_surface(image_fg, new_size, new_size);
SDL_Rect rcDestLeft = { offset, quarter_size, 0, 0 };
SDL_BlitSurface ( image_fg, NULL, image, &rcDestLeft );
// Blit left side
image_bg = scale_surface(image_bg, new_size, new_size);
SDL_Rect rcDestRight = { half_size, quarter_size, 0, 0 };
SDL_BlitSurface ( image_bg, NULL, image, &rcDestRight );
//apply mask so the overlay is contained within the mouseover hex
surface mask(image::get_image("terrain/alphamask.png"));
image = mask_surface(image, mask);
// Add the alpha factor and scale the image
image = scale_surface(adjust_surface_alpha(image, alpha), zoom, zoom);
// Set as mouseover
disp.set_mouseover_hex_overlay(image);
}
