From 07cdc452aeaad73ca9f8f9a3cf9868d2b6c9d5b3 Mon Sep 17 00:00:00 2001
From: Daniel Karbach <daniel.karbach@localhorst.tv>
Date: Sat, 6 Oct 2012 22:08:11 +0200
Subject: [PATCH] added debug mode for maps

currently shows tile blocking flags as little red lines
---
 src/map/Area.cpp     | 45 ++++++++++++++++++++++++++++++++++++++++++++
 src/map/Area.h       |  1 +
 src/map/Map.cpp      |  9 +++++++++
 src/map/Map.h        |  1 +
 src/map/MapState.cpp | 11 ++++++++++-
 src/map/MapState.h   |  1 +
 6 files changed, 67 insertions(+), 1 deletion(-)

diff --git a/src/map/Area.cpp b/src/map/Area.cpp
index 292b895..0b25a04 100644
--- a/src/map/Area.cpp
+++ b/src/map/Area.cpp
@@ -44,4 +44,49 @@ void Area::Render(SDL_Surface *dest, const graphics::Sprite *tileset, const Vect
 	}
 }
 
+void Area::RenderDebug(SDL_Surface *dest, const graphics::Sprite *tileset, const Vector<int> &inOffset) const {
+	for (int i(0); i < numTiles; ++i) {
+		Vector<int> offset(
+				inOffset.X() + (i % width) * tileset->Width(),
+				inOffset.Y() + (i / width) * tileset->Height());
+		const Tile &tile(tiles[i]);
+
+		if (tile.BlocksNorth()) {
+			SDL_Rect destRect;
+			destRect.x = offset.X();
+			destRect.y = offset.Y();
+			destRect.w = tileset->Width();
+			destRect.h = 1;
+			SDL_FillRect(dest, &destRect, SDL_MapRGB(dest->format, 0xFF, 0x00, 0x00));
+		}
+
+		if (tile.BlocksEast()) {
+			SDL_Rect destRect;
+			destRect.x = offset.X() + tileset->Width() - 1;
+			destRect.y = offset.Y();
+			destRect.w = 1;
+			destRect.h = tileset->Height();
+			SDL_FillRect(dest, &destRect, SDL_MapRGB(dest->format, 0xFF, 0x00, 0x00));
+		}
+
+		if (tile.BlocksSouth()) {
+			SDL_Rect destRect;
+			destRect.x = offset.X();
+			destRect.y = offset.Y() + tileset->Height() - 1;
+			destRect.w = tileset->Width();
+			destRect.h = 1;
+			SDL_FillRect(dest, &destRect, SDL_MapRGB(dest->format, 0xFF, 0x00, 0x00));
+		}
+
+		if (tile.BlocksWest()) {
+			SDL_Rect destRect;
+			destRect.x = offset.X();
+			destRect.y = offset.Y();
+			destRect.w = 1;
+			destRect.h = tileset->Height();
+			SDL_FillRect(dest, &destRect, SDL_MapRGB(dest->format, 0xFF, 0x00, 0x00));
+		}
+	}
+}
+
 }
diff --git a/src/map/Area.h b/src/map/Area.h
index e2b6a1e..0a56339 100644
--- a/src/map/Area.h
+++ b/src/map/Area.h
@@ -29,6 +29,7 @@ public:
 	const Tile &TileAt(const geometry::Vector<int> &) const;
 
 	void Render(SDL_Surface *dest, const graphics::Sprite *tileset, const geometry::Vector<int> &offset) const;
+	void RenderDebug(SDL_Surface *dest, const graphics::Sprite *tileset, const geometry::Vector<int> &offset) const;
 
 // temporary setters
 public:
diff --git a/src/map/Map.cpp b/src/map/Map.cpp
index 20f2fa5..c7d75f1 100644
--- a/src/map/Map.cpp
+++ b/src/map/Map.cpp
@@ -71,4 +71,13 @@ void Map::Render(SDL_Surface *dest, const Vector<int> &inOffset) const {
 	}
 }
 
+void Map::RenderDebug(SDL_Surface *dest, const Vector<int> &inOffset) const {
+	// TODO: skip invisible areas
+	for (int i(0); i < numAreas; ++i) {
+		const Area &area(areas[i]);
+		Vector<int> offset(inOffset + Vector<int>::FromIndex(i, width) * area.Size() * tileset->Size());
+		area.RenderDebug(dest, tileset, offset);
+	}
+}
+
 }
diff --git a/src/map/Map.h b/src/map/Map.h
index bda62bd..a1b9ceb 100644
--- a/src/map/Map.h
+++ b/src/map/Map.h
@@ -30,6 +30,7 @@ public:
 	geometry::Vector<int> TileCoordinates(const geometry::Vector<int> &) const;
 
 	void Render(SDL_Surface *dest, const geometry::Vector<int> &offset) const;
+	void RenderDebug(SDL_Surface *dest, const geometry::Vector<int> &offset) const;
 
 // temporary setters
 public:
diff --git a/src/map/MapState.cpp b/src/map/MapState.cpp
index 108d97c..350a1f4 100644
--- a/src/map/MapState.cpp
+++ b/src/map/MapState.cpp
@@ -27,7 +27,8 @@ MapState::MapState(Map *map)
 , camera(100, 100, &tempTarget)
 , walkingSpeed(64)
 , nextDirection(-1)
-, afterLock(false) {
+, afterLock(false)
+, debug(false) {
 
 }
 
@@ -67,6 +68,10 @@ void MapState::HandleEvents(const Input &input) {
 	} else {
 		nextDirection = -1;
 	}
+
+	if (input.JustPressed(Input::DEBUG_1)) {
+		debug = !debug;
+	}
 }
 
 void MapState::UpdateWorld(float deltaT) {
@@ -278,6 +283,10 @@ void MapState::Render(SDL_Surface *screen) {
 	Vector<int> offset(camera.CalculateOffset());
 	map->Render(screen, offset);
 
+	if (debug) {
+		map->RenderDebug(screen, offset);
+	}
+
 	std::sort(entities.begin(), entities.end(), ZCompare);
 	for (std::vector<Entity *>::iterator i(entities.begin()), end(entities.end()); i != end; ++i) {
 		(*i)->Render(screen, offset);
diff --git a/src/map/MapState.h b/src/map/MapState.h
index e7a75b6..4ba149d 100644
--- a/src/map/MapState.h
+++ b/src/map/MapState.h
@@ -69,6 +69,7 @@ private:
 	float walkingSpeed;
 	int nextDirection;
 	bool afterLock;
+	bool debug;
 
 };
 
-- 
2.39.2