Add a line to the character to mark the collision bar.

src/character.cpp

@@ -39,6 +39,9 @@ namespace cloonel {
 		m_screenRatio(parMain),
 		m_bounceCallback(&DoNothing),
 		m_texture(new Texture(parPath, parMain, false))
+#if defined(WITH_DEBUG_VISUALS)
+		, m_bottomBarDrawable(parMain, Colour(250, 5, 1), static_cast<ushort2>(m_bottomBar.From()), static_cast<ushort2>(m_bottomBar.To()))
+#endif
 	{
 		assert(parMain);
 		m_bottomBar.SetCallback(std::bind(&Character::OnBounce, this, std::placeholders::_1, std::placeholders::_2));
@@ -53,6 +56,9 @@ namespace cloonel {
 		m_screenRatio(parMain),
 		m_bounceCallback(&DoNothing),
 		m_texture(new Texture(parPath, parMain, false))
+#if defined(WITH_DEBUG_VISUALS)
+		, m_bottomBarDrawable(parMain, Colour(250, 5, 1), static_cast<ushort2>(m_bottomBar.From()), static_cast<ushort2>(m_bottomBar.To()))
+#endif
 	{
 		assert(parMain);
 		m_bottomBar.SetCallback(std::bind(&Character::OnBounce, this, std::placeholders::_1, std::placeholders::_2));
@@ -88,6 +94,9 @@ namespace cloonel {
 	///-------------------------------------------------------------------------
 	void Character::Draw() const {
 		m_texture->Render(GetPos(), WidthHeight(), m_screenRatio.Ratio(), true);
+#if defined(WITH_DEBUG_VISUALS)
+		m_bottomBarDrawable.Render(GetPos(), m_screenRatio.Ratio());
+#endif
 	}
 
 	///-------------------------------------------------------------------------

src/character.hpp

@@ -27,6 +27,9 @@
 #include "sizenotifiable.hpp"
 #include "horzcollisionbar.hpp"
 #include "collidertypedef.hpp"
+#if defined(WITH_DEBUG_VISUALS)
+# include "drawableline.hpp"
+#endif
 #include <string>
 #include <memory>
 #include <cstdint>
@@ -64,6 +67,9 @@ namespace cloonel {
 		SizeNotifiable<regbehaviours::AutoRegister> m_screenRatio;
 		BounceCallbackType m_bounceCallback;
 		const std::unique_ptr<Texture> m_texture;
+#if defined(WITH_DEBUG_VISUALS)
+		DrawableLine m_bottomBarDrawable;
+#endif
 	};
 } //unnamed namespace
 

src/colour.hpp

@@ -30,6 +30,7 @@ namespace cloonel {
 
 		Colour ( void ) = default;
 		Colour ( ChannelType parR, ChannelType parG, ChannelType parB, ChannelType parA );
+		Colour ( ChannelType parR, ChannelType parG, ChannelType parB ) : Colour(parR, parG, parB, 0xFF) {}
 		explicit Colour ( ChannelType parFill );
 		Colour ( const Colour& parOther ) = default;
 

src/drawableline.cpp

@@ -67,7 +67,16 @@ namespace cloonel {
 
 			ClipLine(screen, scaledLine);
 		}
-		//SDL_RenderDrawLine(m_sdlmain->GetRenderer(), x1, y1, x2, y2
+		const uint16_t h = m_sdlmain->WidthHeight().y();
+		if (scaledLine[0] != scaledLine[1]) {
+			SDL_RenderDrawLine(
+				m_sdlmain->GetRenderer(),
+				scaledLine[0].x(),
+				h - scaledLine[0].y(),
+				scaledLine[1].x(),
+				h - scaledLine[1].y()
+			);
+		}
 		//Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.
 		//http://www.ginkgobitter.org/sdl/?SDL_RenderDrawLine
 	}

src/horzcollisionbar.cpp

@@ -97,7 +97,8 @@ namespace cloonel {
 	///--------------------------------------------------------------------------
 	///--------------------------------------------------------------------------
 	float2 HorzCollisionBar::To() const {
-		return this->GetPos() + len(m_segment);
+		assert(m_segment.End().x() - m_segment.Start().x() != 0.0f);
+		return this->GetPos() + float2(std::abs(m_segment.End().x() - m_segment.Start().x()), 0.0f);
 	}
 
 	///--------------------------------------------------------------------------