#ifndef __NEWER_WORLDMAPDATA_H
#define __NEWER_WORLDMAPDATA_H

#include "fileload.h"
#include <rvl/mtx.h>

// Forward declarations
struct WMPathPoint;
struct WMPathAction;
struct WMPathSegment;
struct WMPathDef;

// here's a note: while most of these structs contain pointers to other structs,
// in the data file these fields actually contain an index into the lists
// (defined in WMDataHeader)
// WorldMapData::load() fixes these offsets.

/******************************************************************************/
// Definition for an entrance onto one side of a path
// (TODO: Maybe rename this struct?)

// Note: a null WMPathEntrance has no path defined
// since the path pointer is stored as an index in the data file, the index for
// a null path becomes -1

struct WMPathEntrance {
	WMPathDef *path;
	bool isEndSide;
	
	bool isValid() { return (this->path != 0); }
};


/******************************************************************************/
// Definition for one point on the map

struct WMPathPoint {
	enum PointType {
		NONE_TYPE,
		LEVEL_TYPE
	};
	
	// Paths you arrive on when you press a direction when at this point
	union {
		struct {
			WMPathEntrance left;
			WMPathEntrance right;
			WMPathEntrance up;
			WMPathEntrance down;
		} asDirection;
		WMPathEntrance asArray[4];
	} exits;
	
	// Point metadata
	PointType type;
	int params[4];
	
	Vec position;
};


/******************************************************************************/
// Definition for an action that can be triggered when the player reaches a
// specific point

struct WMPathAction {
	enum ActionType {
		TELEPORT_TYPE // teleports to another submap
	};
	
	// Action metadata
	ActionType type;
	int params[4];
};


/******************************************************************************/
// Definition for one part of a path

struct WMPathSegment {
	// Segment metadata
	Vec start;
	Vec end;
	float stepsPerFrame;
	int animationType;
	float animationSpeed;
	short direction;
	bool useLastDir;
	bool alwaysSameDir;
	
	// Optional Action that's triggered when the player touches this segment
	WMPathAction *action;
};


/******************************************************************************/
// Definition for one path

struct WMPathDef {
	// Path metadata
	WMPathPoint *startPoint;
	WMPathPoint *endPoint;
	
	int segCount;
	WMPathSegment *segments[1]; // variable-length array
};




struct WMDataHeader {
	u32 magic;
	
	WMPathDef **pathList;
	int pathCount;
	
	WMPathPoint **pointList;
	int pointCount;
	
	WMPathSegment **segmentList;
	int segmentCount;

	// todo: remove action list?
	WMPathAction **actionList;
	int actionCount;
};


class WorldMapData {
public:
	WorldMapData();
	~WorldMapData();
	
	bool load(const char *filename);
	
	FileHandle fh;
	
	int getPathCount() {
		return ((WMDataHeader*)fh.filePtr)->pathCount;
	}
	
	WMPathDef *getPath(int idx) {
		return ((WMDataHeader*)fh.filePtr)->pathList[idx];
	}
	
	int getPointID(WMPathPoint *point);
};

#endif // __NEWER_WORLDMAPDATA_H