From c055b357c50dd871b49c38191a9d867ff42ea420 Mon Sep 17 00:00:00 2001
From: Daniel Karbach <daniel.karbach@localhorst.tv>
Date: Wed, 3 Oct 2012 15:09:02 +0200
Subject: [PATCH] trigger handling in map state

---
 src/main.cpp         | 14 ++++++++++----
 src/map/Map.cpp      | 14 ++++++++++++++
 src/map/Map.h        |  8 ++++++--
 src/map/MapState.cpp |  8 ++++++--
 src/map/MapState.h   |  4 ++--
 5 files changed, 38 insertions(+), 10 deletions(-)

diff --git a/src/main.cpp b/src/main.cpp
index aa20890..20eb55b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -36,6 +36,7 @@
 #include "map/Map.h"
 #include "map/MapState.h"
 #include "map/Tile.h"
+#include "map/Trigger.h"
 #include "sdl/InitImage.h"
 #include "sdl/InitScreen.h"
 #include "sdl/InitSDL.h"
@@ -79,6 +80,7 @@ using map::Entity;
 using map::Map;
 using map::MapState;
 using map::Tile;
+using map::Trigger;
 using sdl::InitImage;
 using sdl::InitScreen;
 using sdl::InitSDL;
@@ -311,16 +313,20 @@ int main(int argc, char **argv) {
 		tiles[62].SetOffset(Vector<int>(1, 1));
 		tiles[63].SetOffset(Vector<int>(1, 1));
 
-		Area area;
-		area.SetTiles(tiles, 64);
-		area.SetWidth(8);
+		Area areas[1];
+		areas[0].SetTiles(tiles, 64);
+		areas[0].SetWidth(8);
+
+		Trigger triggers[1];
+		triggers[0].SetTilePosition(Vector<int>(2, 0));
 
 		SDL_Surface *tilesetImg(IMG_Load("test-data/tileset.png"));
 		Sprite tileset(tilesetImg, tileSize, tileSize);
 
 		Map map;
-		map.SetAreas(&area, 1);
+		map.SetAreas(areas, 1);
 		map.SetTileset(&tileset);
+		map.SetTriggers(triggers, 1);
 		map.SetWidth(1);
 
 		SDL_Surface *mapMaximImg(IMG_Load("test-data/maxim-map.png"));
diff --git a/src/map/Map.cpp b/src/map/Map.cpp
index 2e05e8b..7712a02 100644
--- a/src/map/Map.cpp
+++ b/src/map/Map.cpp
@@ -8,6 +8,7 @@
 #include "Map.h"
 
 #include "Area.h"
+#include "Trigger.h"
 #include "../graphics/Sprite.h"
 
 #include <stdexcept>
@@ -20,6 +21,8 @@ Map::Map()
 : tileset(0)
 , areas(0)
 , numAreas(0)
+, triggers(0)
+, numTriggers(0)
 , width(0) {
 
 }
@@ -43,6 +46,17 @@ const Tile &Map::TileAt(const Vector<int> &offset) const {
 	return area.TileAt(tileOffset);
 }
 
+Trigger *Map::TriggerAt(const geometry::Vector<int> &offset) {
+	// TODO: add support for multiple triggers on a tile?
+	Vector<int> tilePosition(offset.X() / tileset->Width(), offset.Y() / tileset->Height());
+	for (Trigger *i(triggers); i != triggers + numTriggers; ++i) {
+		if (i->TilePosition() == tilePosition) {
+			return i;
+		}
+	}
+	return 0;
+}
+
 
 void Map::Render(SDL_Surface *dest, const Vector<int> &inOffset) const {
 	// TODO: skip invisible areas
diff --git a/src/map/Map.h b/src/map/Map.h
index 340c76c..dd0185c 100644
--- a/src/map/Map.h
+++ b/src/map/Map.h
@@ -26,19 +26,23 @@ public:
 	const graphics::Sprite *Tileset() const { return tileset; }
 	const Area &AreaAt(const geometry::Vector<int> &) const;
 	const Tile &TileAt(const geometry::Vector<int> &) const;
+	Trigger *TriggerAt(const geometry::Vector<int> &);
 
 	void Render(SDL_Surface *dest, const geometry::Vector<int> &offset) const;
 
 // temporary setters
 public:
 	void SetTileset(const graphics::Sprite *t) { tileset = t; }
-	void SetAreas(const Area *a, int num) { areas = a; numAreas = num; }
+	void SetAreas(Area *a, int num) { areas = a; numAreas = num; }
+	void SetTriggers(Trigger *t, int num) { triggers = t; numTriggers = num; }
 	void SetWidth(int w) { width = w; }
 
 private:
 	const graphics::Sprite *tileset;
-	const Area *areas;
+	Area *areas;
 	int numAreas;
+	Trigger *triggers;
+	int numTriggers;
 	int width;
 
 };
diff --git a/src/map/MapState.cpp b/src/map/MapState.cpp
index 8d9b278..3be5a45 100644
--- a/src/map/MapState.cpp
+++ b/src/map/MapState.cpp
@@ -20,7 +20,7 @@ using geometry::Vector;
 
 namespace map {
 
-MapState::MapState(const Map *map)
+MapState::MapState(Map *map)
 : map(map)
 , controlled(0)
 , tempTarget(20, 20)
@@ -120,7 +120,11 @@ void MapState::UpdateWorld(float deltaT) {
 }
 
 void MapState::OnGridLock() {
-	// TODO: check for adjacent monsters and triggers on the current tile
+	Trigger *trigger(map->TriggerAt(Vector<int>(controlled->Position())));
+	if (trigger) {
+		// TODO: run trigger
+	}
+	// TODO: check for adjacent monsters
 	// TODO: force all entities into their grid positions?
 }
 
diff --git a/src/map/MapState.h b/src/map/MapState.h
index 243325c..2b53069 100644
--- a/src/map/MapState.h
+++ b/src/map/MapState.h
@@ -22,7 +22,7 @@ class MapState
 : public app::State {
 
 public:
-	explicit MapState(const Map *);
+	explicit MapState(Map *);
 	virtual ~MapState() { }
 
 public:
@@ -48,7 +48,7 @@ private:
 	void OnMove();
 
 private:
-	const Map *map;
+	Map *map;
 	Entity *controlled;
 	geometry::Vector<float> tempTarget;
 	geometry::Vector<int> lastLock;
-- 
2.39.2