Refactor cmake file so the main part of the code is a lib.

src/jumping/tiledwallpaper.cpp

@@ -0,0 +1,130 @@
+/*
+	Copyright 2014 Michele "King_DuckZ" Santullo
+
+	This file is part of CloonelJump.
+
+	CloonelJump 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.
+
+	CloonelJump 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 CloonelJump.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "tiledwallpaper.hpp"
+#include "texture.hpp"
+#include "sdlmain.hpp"
+#include "sizeratio.hpp"
+#include "compatibility.h"
+#include <cassert>
+#include <iostream>
+
+namespace cloonel {
+	namespace {
+		float2 CountTilesInScreen ( const ushort2& parScreenSize, const ushort2& parTileSize ) a_pure;
+
+		///----------------------------------------------------------------------
+		///----------------------------------------------------------------------
+		float2 CountTilesInScreen (const ushort2& parScreenSize, const ushort2& parTileSize) {
+			assert(ushort2(0) != parTileSize);
+			return vector_cast<float2>((parTileSize - 1U + parScreenSize) / parTileSize);
+		}
+	} //unnamed namespace
+
+	///--------------------------------------------------------------------------
+	///--------------------------------------------------------------------------
+	TiledWallpaper::TiledWallpaper (const std::string&& parPath, SDLMain* parMain) :
+		Drawable(128.0f, 128.0f),
+		m_tileCount(parMain, ushort2(128)),
+		m_tile(new Texture(parPath, parMain, false))
+#if defined(WITH_DEBUG_VISUALS)
+		, m_midscreen(parMain,
+			Colour(80, 250, 6),
+			short2(0),
+			short2(1)
+		)
+#endif
+	{
+	}
+
+	///--------------------------------------------------------------------------
+	///--------------------------------------------------------------------------
+	TiledWallpaper::~TiledWallpaper() noexcept {
+	}
+
+	///--------------------------------------------------------------------------
+	///--------------------------------------------------------------------------
+	void TiledWallpaper::Reload() {
+		m_tile->Reload();
+	}
+
+	///--------------------------------------------------------------------------
+	///--------------------------------------------------------------------------
+	void TiledWallpaper::Destroy() noexcept {
+		m_tile->Destroy();
+	}
+
+	///--------------------------------------------------------------------------
+	///--------------------------------------------------------------------------
+	void TiledWallpaper::Draw() const {
+		const ushort2 grid(vector_cast<ushort2>(m_tileCount.tileCount()));
+		const float2& sz = m_tileCount.tileSize();
+
+		//TODO: add code to tell the renderer if the current tile will need clipping or not
+		float2 dest;
+		dest.y() = 0.0f;
+		for (uint16_t y = 0; y < grid.y(); ++y) {
+			dest.x() = 0.0f;
+			for (uint16_t x = 0; x < grid.x(); ++x) {
+				m_tile->Render(dest, sz, float2(1.0f), true);
+				dest.x() += sz.x();
+			}
+			dest.y() += sz.y();
+		}
+
+#if defined(WITH_DEBUG_VISUALS)
+		//std::cout << "drawing line at " << WidthHeight() * float2(1.0f, 0.5f);
+		//std::cout << " to " << m_tileCount.screenRes() << "\n";
+		m_midscreen.Render(WidthHeight() * float2(1.0f, 0.5f), m_tileCount.screenRes());
+#endif
+	}
+
+	///--------------------------------------------------------------------------
+	///--------------------------------------------------------------------------
+	TiledWallpaper::TileCountNotifiable::TileCountNotifiable (SDLMain* parMain, const ushort2& parTileSize) :
+		BaseClass(parMain, this),
+		m_tileCount(CountTilesInScreen(parMain->WidthHeight(), parTileSize)),
+		m_tileSize(vector_cast<float2>(parTileSize))
+#if defined(WITH_DEBUG_VISUALS)
+		, m_screenRes(1.0f)
+#endif
+	{
+		assert(parMain);
+		assert(ushort2(0) != parTileSize);
+	}
+
+	///--------------------------------------------------------------------------
+	///--------------------------------------------------------------------------
+	void TiledWallpaper::TileCountNotifiable::OnResChanged (const SizeRatio& parSize) {
+		std::cout << "Autoregistering" << std::endl;
+		m_tileCount = CountTilesInScreen(vector_cast<ushort2>(parSize.Resolution()), vector_cast<ushort2>(m_tileSize));
+#if defined(WITH_DEBUG_VISUALS)
+		m_screenRes = parSize.Resolution();
+#endif
+#if !defined(NDEBUG)
+		{
+			m_screenRes = parSize.Resolution();
+			const ushort2 tileSize(vector_cast<ushort2>(m_tileSize));
+			const ushort2 screenRes(vector_cast<ushort2>(parSize.Resolution()));
+			const ushort2 tileCount(vector_cast<ushort2>(m_tileCount));
+			assert(tileCount * tileSize < screenRes + tileSize);
+		}
+#endif
+	}
+} //namespace cloonel