void
TileMap::draw(DrawingContext& context)
{
- // skip draw if current opacity is set to 0.0
+ // skip draw if current opacity is 0.0
if (current_alpha == 0.0) return;
context.push_transform();
- context.push_target();
- context.set_target(draw_target);
+ if(draw_target != DrawingContext::NORMAL) {
+ context.push_target();
+ context.set_target(draw_target);
+ }
if(drawing_effect != 0) context.set_drawing_effect(drawing_effect);
if(current_alpha != 1.0) context.set_alpha(current_alpha);
+ /* Force the translation to be an integer so that the tiles appear sharper.
+ * For consistency (i.e., to avoid 1-pixel gaps), this needs to be done even
+ * for solid tilemaps that are guaranteed to have speed 1.
+ * FIXME Force integer translation for all graphics, not just tilemaps. */
float trans_x = roundf(context.get_translation().x);
float trans_y = roundf(context.get_translation().y);
context.set_translation(Vector(int(trans_x * speed_x),
int(trans_y * speed_y)));
- /** if we don't round here, we'll have a 1 pixel gap on screen sometimes.
- * I have no idea why */
- float start_x = int((roundf(context.get_translation().x) - roundf(x_offset)) / 32) * 32 + roundf(x_offset);
- float start_y = int((roundf(context.get_translation().y) - roundf(y_offset)) / 32) * 32 + roundf(y_offset);
- float end_x = std::min(start_x + SCREEN_WIDTH + 32, float(width * 32 + roundf(x_offset)));
- float end_y = std::min(start_y + SCREEN_HEIGHT + 32, float(height * 32 + roundf(y_offset)));
- int tsx = int((start_x - roundf(x_offset)) / 32); // tilestartindex x
- int tsy = int((start_y - roundf(y_offset)) / 32); // tilestartindex y
+ int tsx = int((context.get_translation().x - x_offset) / 32); // tilestartindex x
+ int tsy = int((context.get_translation().y - y_offset) / 32); // tilestartindex y
+ tsx = std::max(tsx, 0);
+ tsy = std::max(tsy, 0);
+ float start_x = tsx * 32 + x_offset;
+ float start_y = tsy * 32 + y_offset;
+ float end_x = start_x + SCREEN_WIDTH + 32;
+ float end_y = start_y + SCREEN_HEIGHT + 32;
Vector pos;
int tx, ty;
- for(pos.x = start_x, tx = tsx; pos.x < end_x; pos.x += 32, ++tx) {
- for(pos.y = start_y, ty = tsy; pos.y < end_y; pos.y += 32, ++ty) {
- if ((tx < 0) || (ty < 0)) continue;
- const Tile* tile = tileset->get(tiles[ty*width + tx]);
+
+ for(pos.x = start_x, tx = tsx; (pos.x < end_x) && (tx < width); pos.x += 32, ++tx) {
+ for(pos.y = start_y, ty = tsy; (pos.y < end_y) && (ty < height); pos.y += 32, ++ty) {
+ int index = ty*width + tx;
+ assert (index >= 0);
+ assert (index < (width * height));
+
+ if (tiles[index] == 0) continue;
+ const Tile* tile = tileset->get(tiles[index]);
assert(tile != 0);
tile->draw(context, pos, z_pos);
- }
- }
+ } /* for (pos y) */
+ } /* for (pos x) */
- context.pop_target();
+ if(draw_target != DrawingContext::NORMAL) {
+ context.pop_target();
+ }
context.pop_transform();
}
TileMap::expose(HSQUIRRELVM vm, SQInteger table_idx)
{
if (name.empty()) return;
- Scripting::TileMap* interface = new Scripting::TileMap(this);
- expose_object(vm, table_idx, interface, name, true);
+ scripting::TileMap* _this = new scripting::TileMap(this);
+ expose_object(vm, table_idx, _this, name, true);
}
void
TileMap::unexpose(HSQUIRRELVM vm, SQInteger table_idx)
{
if (name.empty()) return;
- Scripting::unexpose_object(vm, table_idx, name);
+ scripting::unexpose_object(vm, table_idx, name);
}
void
{
return this->current_alpha;
}
-
-IMPLEMENT_FACTORY(TileMap, "tilemap");
+
/* EOF */