Add Circular Pathed Platforms (SuperTux#1467)

* Add circular platforms [ci skip]

* update objects file [ci skip]

* Add to gameobjectfactory

* Add files via upload

* Update objects.stoi

[ci skip]

* quality de la code [ci skip]

* Update objects.stoi

[ci skip]

* Replaced tabs with spaces

Co-authored-by: Zwatotem <zwatotem@gmail.com>

data/images/engine/editor/objects.stoi

@@ -219,6 +219,9 @@
   (object
     (class "bicycle-platform")
     (icon "images/engine/editor/bicycleplatform.png"))
+  (object
+    (class "circleplatform")
+    (icon "images/engine/editor/circeplatform.png"))
   (object
     (class "hurting_platform")
     (icon "images/objects/sawblade/default-0.png"))

src/object/circleplatform.cpp

@@ -0,0 +1,84 @@
+//  Copyright (C) 2020 Daniel Ward <weluvgoatz@gmail.com>
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include "object/circleplatform.hpp"
+
+#include "editor/editor.hpp"
+#include "math/util.hpp"
+#include "util/reader_mapping.hpp"
+#include "util/writer.hpp"
+
+CirclePlatform::CirclePlatform(const ReaderMapping& reader) :
+  MovingSprite(reader, "images/objects/platforms/icebridge1.png", LAYER_OBJECTS, COLGROUP_STATIC),
+  start_position(m_col.m_bbox.p1()),
+  angle(0.0),
+  radius(),
+  speed(),
+  timer(),
+  time(0.0)
+{
+  reader.get("radius", radius, 100.0f);
+  reader.get("speed", speed, 2.0f);
+  reader.get("time", time, 0.0f);
+  if (!Editor::is_active())
+  {
+    m_col.m_bbox.set_pos(Vector(start_position.x + cosf(angle) * radius,
+                                start_position.y + sinf(angle) * radius));
+    initialize();
+  }
+}
+
+HitResponse
+CirclePlatform::collision(GameObject& other, const CollisionHit& )
+{
+  return FORCE_MOVE;
+}
+
+ObjectSettings
+CirclePlatform::get_settings()
+{
+  ObjectSettings result = MovingSprite::get_settings();
+
+  result.add_float(_("Radius"), &radius, "radius", 100.0f);
+  result.add_float(_("Speed"), &speed, "speed", 2.0f);
+  result.add_float(_("Delay"), &time, "time", 0.0f);
+
+  result.reorder({"radius", "speed", "time", "sprite", "x", "y"});
+
+  return result;
+}
+
+void
+CirclePlatform::update(float dt_sec)
+{
+  if (timer.get_timeleft() <= 0.00f)
+  {
+    time = 0;
+    timer.stop();
+    angle = fmodf(angle + dt_sec * speed, math::TAU);
+    if (!Editor::is_active())
+    {
+      Vector newpos(start_position.x + cosf(angle) * radius,
+                    start_position.y + sinf(angle) * radius);
+      m_col.m_movement = newpos - get_pos();
+    }
+  }
+}
+
+void
+CirclePlatform::initialize()
+{
+  timer.start(time);
+}

src/object/circleplatform.hpp

@@ -0,0 +1,54 @@
+//  Copyright (C) 2020 Daniel Ward <weluvgoatz@gmail.com>
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef HEADER_SUPERTUX_OBJECT_CIRCLEPLATFORM_HPP
+#define HEADER_SUPERTUX_OBJECT_CIRCLEPLATFORM_HPP
+
+#include "object/moving_sprite.hpp"
+#include "supertux/timer.hpp"
+
+class CirclePlatform : public MovingSprite
+{
+public:
+  CirclePlatform(const ReaderMapping& reader);
+
+  virtual HitResponse collision(GameObject& other, const CollisionHit& hit) override;
+  virtual ObjectSettings get_settings() override;
+  virtual void update(float dt_sec) override;
+
+  virtual std::string get_class() const override { return "circleplatform"; }
+  virtual std::string get_display_name() const override { return _("Circular Platform"); }
+
+private:
+  virtual void initialize();
+
+protected:
+  Vector start_position;
+  float angle;
+  float radius;
+  float speed;
+
+  Timer timer;
+  float time;
+
+
+private:
+  CirclePlatform(const CirclePlatform&) = delete;
+  CirclePlatform& operator=(const CirclePlatform&) = delete;
+};
+
+#endif
+
+/* EOF */

src/supertux/game_object_factory.cpp

@@ -76,6 +76,7 @@
 #include "object/brick.hpp"
 #include "object/camera.hpp"
 #include "object/candle.hpp"
+#include "object/circleplatform.hpp"
 #include "object/cloud_particle_system.hpp"
 #include "object/coin.hpp"
 #include "object/decal.hpp"
@@ -206,6 +207,7 @@ GameObjectFactory::init_factories()
   add_factory<Brick>("brick");
   add_factory<Camera>("camera");
   add_factory<Candle>("candle");
+  add_factory<CirclePlatform>("circleplatform");
   add_factory<CloudParticleSystem>("particles-clouds");
   add_factory<Coin>("coin");
   add_factory<Decal>("decal");