Bouncing works but going too high causes an assertion.

This commit also reduces the jump size and the character's size.

src/CloonelJumpConfig.h.in

@@ -21,7 +21,7 @@
 #define id5FC1D6EEF9DF41E790068FBC6753035F
 
 #define GameName "@PROJECT_NAME@"
-#define GameVersionMinor 11
+#define GameVersionMinor 12
 #define GameVersionMajor 0
 
 #define REFERENCE_WIDTH 480
@@ -32,6 +32,8 @@
 #define MAX_PLATFORMS_ON_SCREEN 24
 #define REFERENCE_PLATFORM_WIDTH 104
 #define REFERENCE_PLATFORM_HEIGHT 25
+#define REFERENCE_CHARA_WIDTH 55
+#define REFERENCE_CHARA_HEIGHT 70
 
 /* TODO: make this path relative */
 #define GAME_BASE_PATH "@CMAKE_SOURCE_DIR@"

src/character.cpp

@@ -21,9 +21,15 @@
 #include "sdlmain.hpp"
 #include "texture.hpp"
 #include "collider.hpp"
+#include "line.hpp"
 #include <cassert>
 
 namespace cloonel {
+	namespace {
+		void DoNothing (const Line<float, 2>&, const float2&) {
+		}
+	} //unnamed namespace
+
 	///-------------------------------------------------------------------------
 	///-------------------------------------------------------------------------
 	Character::Character (const std::string& parPath, SDLMain* parMain, float2 parSize) :
@@ -31,9 +37,11 @@ namespace cloonel {
 		Drawable(parSize),
 		m_bottomBar(float2(0.0f), parSize.x()),
 		m_screenRatio(parMain),
+		m_bounceCallback(&DoNothing),
 		m_texture(new Texture(parPath, parMain, false))
 	{
 		assert(parMain);
+		m_bottomBar.SetCallback(std::bind(&Character::OnBounce, this, std::placeholders::_1, std::placeholders::_2));
 	}
 
 	///-------------------------------------------------------------------------
@@ -43,9 +51,11 @@ namespace cloonel {
 		Drawable(parSize),
 		m_bottomBar(float2(0.0f), parSize.x()),
 		m_screenRatio(parMain),
+		m_bounceCallback(&DoNothing),
 		m_texture(new Texture(parPath, parMain, false))
 	{
 		assert(parMain);
+		m_bottomBar.SetCallback(std::bind(&Character::OnBounce, this, std::placeholders::_1, std::placeholders::_2));
 	}
 
 	///-------------------------------------------------------------------------
@@ -85,4 +95,21 @@ namespace cloonel {
 	void Character::OnRegister (Mover& parMover, Mover::PlaceableTicketType parParentTicket) {
 		parMover.RegisterPlaceable(&m_bottomBar, parParentTicket);
 	}
+
+	///-------------------------------------------------------------------------
+	///-------------------------------------------------------------------------
+	void Character::SetOnBounceCallback (BounceCallbackType parCallb) {
+		m_bounceCallback = parCallb;
+	}
+
+	///-------------------------------------------------------------------------
+	///-------------------------------------------------------------------------
+	void Character::OnBounce (const Line<float, 2>& parCollision, const float2& parDirection) {
+		if (parDirection.y() < 0.0f) {
+			const float2 newPos(GetPos().x(), parCollision.Start().y());
+			this->SetAbsolutePosition(newPos);
+			m_bottomBar.SetAbsolutePosition(newPos);
+			m_bounceCallback(parCollision, parDirection);
+		}
+	}
 } //namespace cloonel

src/character.hpp

@@ -28,28 +28,38 @@
 #include "collidertypedef.hpp"
 #include <string>
 #include <memory>
+#include <cstdint>
+#include <functional>
 
 namespace cloonel {
 	class SDLMain;
 	class Texture;
+	template <typename T, uint32_t S> class Line;
 
 	class Character : public Placeable, public Drawable {
 	public:
+		typedef std::function<void(const Line<float, 2>&, const float2&)> BounceCallbackType;
+
 		Character ( const std::string& parPath, SDLMain* parMain, float2 parSize );
 		Character ( const std::string&& parPath, SDLMain* parMain, float2 parSize );
+		Character ( const Character& ) = delete;
 		virtual ~Character ( void ) noexcept;
 
 		void Prepare ( void );
 		void Destroy ( void ) noexcept;
 		virtual void Draw ( void ) const;
 		void RegisterForCollision ( ColliderRegisterFunc parRegisterCollision );
+		void SetOnBounceCallback ( BounceCallbackType parCallb );
 
 	private:
 		//Overrides
 		virtual void OnRegister ( Mover& parMover, Mover::PlaceableTicketType parParentTicket );
 
+		void OnBounce ( const Line<float, 2>& parCollision, const float2& parDirection );
+
 		HorzCollisionBar m_bottomBar;
 		SizeNotifiable<regbehaviours::AutoRegister> m_screenRatio;
+		BounceCallbackType m_bounceCallback;
 		const std::unique_ptr<Texture> m_texture;
 	};
 } //unnamed namespace

src/collider.cpp

@@ -88,9 +88,25 @@ namespace cloonel {
 						std::cout << "Collider: Collision ";
 						std::cout << "between " << bar1 << " and " << bar2 << "\n";
 #endif
-						const auto dir1 = normalized(bar1->GetPos() - bar1->From());
+						const auto& offs1 = bar1->GetOffset();
+						const auto& offs2 = bar2->GetOffset();
+						float2 dir1, dir2;
+						if (offs1 == float2(0.0f) and offs2 == float2(0.0f)) {
+							dir1 = dir2 = float2(0.0f);
+						}
+						else if (offs1 == float2(0.0f)) {
+							dir2 = normalized(offs2);
+							dir1 = -1.0f * dir2;
+						}
+						else if (offs2 == float2(0.0f)) {
+							dir1 = normalized(offs1);
+							dir2 = -1.0f * dir1;
+						}
+						else {
+							dir1 = normalized(offs1);
+							dir2 = normalized(offs2);
+						}
 						bar1->InvokeCallback(overlap, dir1);
-						const auto dir2 = normalized(bar2->GetPos() - bar2->From());
 						bar2->InvokeCallback(overlap, dir2);
 					}
 				}

src/gameplaysceneclassic.cpp

@@ -46,6 +46,10 @@ namespace cloonel {
 			CollisionID_Player,
 			CollisionID_Enemies
 		};
+
+		void OnCharacterBounce (MoverSine* parMover, const Line<float, 2>&, const float2&) {
+			parMover->ResetToBounce();
+		}
 	} //unnamed namespace
 
 	///--------------------------------------------------------------------------
@@ -70,9 +74,10 @@ namespace cloonel {
 	void GameplaySceneClassic::OnPrepare() {
 		const float halfRefHeight = static_cast<float>(REFERENCE_HEIGHT) / 2.0f;
 		Collider& collider = *this->GetCollider();
+		const float2 charaRefSize(static_cast<float>(REFERENCE_CHARA_WIDTH), static_cast<float>(REFERENCE_CHARA_HEIGHT));
 
 		std::unique_ptr<MoverSine> moverSine(new MoverSine());
-		std::unique_ptr<Character> player(new Character("resources/graphics/player.png", SDLObject(), float2(80.0f, 120.0f)));
+		std::unique_ptr<Character> player(new Character("resources/graphics/player.png", SDLObject(), charaRefSize));
 		std::unique_ptr<MoverLeftRight> moverLeftRight(new MoverLeftRight(1.5f, 5.0f, 40.0f));
 		std::unique_ptr<MoverWorld> moverWorld(new MoverWorld(halfRefHeight));
 		std::unique_ptr<TiledWallpaper> wallpaper(new TiledWallpaper("resources/graphics/background_tile.png", SDLObject()));
@@ -97,6 +102,8 @@ namespace cloonel {
 			platforms->RegisterForCollision(regPlatfCollision, unregPlatfCollision);
 		}
 
+		player->SetOnBounceCallback(std::bind(&OnCharacterBounce, moverSine.get(), std::placeholders::_1, std::placeholders::_2));
+
 		std::swap(moverSine, m_moverSine);
 		std::swap(player, m_player);
 		std::swap(moverLeftRight, m_moverLeftRight);
@@ -111,7 +118,7 @@ namespace cloonel {
 		m_platforms->AddDrawables();
 		AddDrawable(m_player.get());
 
-		const float jumpPower = halfRefHeight * 1.29f;
+		const float jumpPower = halfRefHeight * 0.71f;
 		m_moverSine->SetPower(jumpPower);
 
 		collider.TieGroups(CollisionID_Platforms, CollisionID_Player);

src/horzcollisionbar.cpp

@@ -67,8 +67,7 @@ namespace cloonel {
 
 			const auto& retStart = (midpointA.Start().x() > midpointB.Start().x() ? midpointA.Start() : midpointB.Start());
 			const auto& retEnd = (midpointA.End().x() < midpointB.End().x() ? midpointA.End() : midpointB.End());
-			assert(retStart.y() == retEnd.y());
-			return std::make_pair(true, Line2D(retStart, retEnd));
+			return std::make_pair(true, Line2D(retStart, float2(retEnd.x(), retStart.y())));
 		}
 
 		///----------------------------------------------------------------------

src/movers/moversine.cpp

@@ -47,4 +47,10 @@ namespace cloonel {
 		while (m_alpha >= pitwo)
 			m_alpha -= pitwo;
 	}
+
+	///--------------------------------------------------------------------------
+	///--------------------------------------------------------------------------
+	void MoverSine::ResetToBounce() {
+		m_alpha = 0.0f;
+	}
 } //namespace cloonel

src/movers/moversine.hpp

@@ -29,6 +29,7 @@ namespace cloonel {
 		~MoverSine ( void ) noexcept = default;
 
 		void SetPower ( float parPower ) noexcept { m_power = parPower; }
+		void ResetToBounce ( void );
 
 	private:
 		virtual void ApplyMotion ( float parDelta );

src/placeable.hpp

@@ -28,6 +28,7 @@ namespace cloonel {
 	public:
 		float2 GetPos ( void ) const noexcept;
 		virtual void AddOffset ( const float2& parOffset ) noexcept;
+		virtual void SetAbsolutePosition ( const float2& parPos ) noexcept;
 		virtual void OnRegister ( Mover& parMover, Mover::PlaceableTicketType parParentTicket );
 		virtual void BeginMovement ( void );
 
@@ -50,6 +51,12 @@ namespace cloonel {
 	inline float2 Placeable::GetPos() const noexcept {
 		return m_pos;
 	}
+
+	///--------------------------------------------------------------------------
+	///--------------------------------------------------------------------------
+	inline void Placeable::SetAbsolutePosition (const float2& parPos) noexcept {
+		m_pos = parPos;
+	}
 } //namespace cloonel
 
 #endif