collision.h

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/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
/* If you are missing that file, acquire a complete release at teeworlds.com.                */
#ifndef GAME_COLLISION_H
#define GAME_COLLISION_H
 
#include <base/vmath.h>
 
#include <engine/shared/protocol.h>
 
#include <map>
#include <vector>
 
class CTile;
class CLayers;
class CTeleTile;
class CSpeedupTile;
class CSwitchTile;
class CTuneTile;
class CDoorTile;
 
enum
{
    CANTMOVE_LEFT = 1 << 0,
    CANTMOVE_RIGHT = 1 << 1,
    CANTMOVE_UP = 1 << 2,
    CANTMOVE_DOWN = 1 << 3,
};
 
vec2 ClampVel(int MoveRestriction, vec2 Vel);
 
typedef bool (*CALLBACK_SWITCHACTIVE)(int Number, void *pUser);
struct CAntibotMapData;
 
class CCollision
{
public:
    CCollision();
    ~CCollision();
 
    void Init(CLayers *pLayers);
    void Unload();
    void FillAntibot(CAntibotMapData *pMapData) const;
 
    bool CheckPoint(float x, float y) const { return IsSolid(round_to_int(x), round_to_int(y)); }
    bool CheckPoint(vec2 Pos) const { return CheckPoint(Pos.x, Pos.y); }
    int GetCollisionAt(float x, float y) const { return GetTile(round_to_int(x), round_to_int(y)); }
    int GetWidth() const { return m_Width; }
    int GetHeight() const { return m_Height; }
    int IntersectLine(vec2 Pos0, vec2 Pos1, vec2 *pOutCollision, vec2 *pOutBeforeCollision) const;
    int IntersectLineTeleWeapon(vec2 Pos0, vec2 Pos1, vec2 *pOutCollision, vec2 *pOutBeforeCollision, int *pTeleNr = nullptr) const;
    int IntersectLineTeleHook(vec2 Pos0, vec2 Pos1, vec2 *pOutCollision, vec2 *pOutBeforeCollision, int *pTeleNr = nullptr) const;
    void MovePoint(vec2 *pInoutPos, vec2 *pInoutVel, float Elasticity, int *pBounces) const;
    void MoveBox(vec2 *pInoutPos, vec2 *pInoutVel, vec2 Size, vec2 Elasticity, bool *pGrounded = nullptr) const;
    bool TestBox(vec2 Pos, vec2 Size) const;
    bool IsOnGround(vec2 Pos, float Size) const;
 
    // DDRace
    void SetCollisionAt(float x, float y, int Index);
    void SetDoorCollisionAt(float x, float y, int Type, int Flags, int Number);
    void GetDoorTile(int Index, CDoorTile *pDoorTile) const;
    int GetFrontCollisionAt(float x, float y) const { return GetFrontTile(round_to_int(x), round_to_int(y)); }
    int IntersectNoLaser(vec2 Pos0, vec2 Pos1, vec2 *pOutCollision, vec2 *pOutBeforeCollision) const;
    int IntersectNoLaserNoWalls(vec2 Pos0, vec2 Pos1, vec2 *pOutCollision, vec2 *pOutBeforeCollision) const;
    int IntersectAir(vec2 Pos0, vec2 Pos1, vec2 *pOutCollision, vec2 *pOutBeforeCollision) const;
    int GetIndex(int x, int y) const;
    int GetIndex(vec2 PrevPos, vec2 Pos) const;
    int GetFrontIndex(int x, int y) const;
 
    int GetMoveRestrictions(CALLBACK_SWITCHACTIVE pfnSwitchActive, void *pUser, vec2 Pos, float Distance = 18.0f, int OverrideCenterTileIndex = -1) const;
    int GetMoveRestrictions(vec2 Pos, float Distance = 18.0f) const
    {
        return GetMoveRestrictions(nullptr, nullptr, Pos, Distance);
    }
 
    int GetTile(int x, int y) const;
    int GetFrontTile(int x, int y) const;
    int Entity(int x, int y, int Layer) const;
    int GetPureMapIndex(float x, float y) const;
    int GetPureMapIndex(vec2 Pos) const { return GetPureMapIndex(Pos.x, Pos.y); }
    std::vector<int> GetMapIndices(vec2 PrevPos, vec2 Pos, unsigned MaxIndices = 0) const;
    int GetMapIndex(vec2 Pos) const;
    bool TileExists(int Index) const;
    bool TileExistsNext(int Index) const;
    vec2 GetPos(int Index) const;
    int GetTileIndex(int Index) const;
    int GetFrontTileIndex(int Index) const;
    int GetTileFlags(int Index) const;
    int GetFrontTileFlags(int Index) const;
    int IsTeleport(int Index) const;
    int IsEvilTeleport(int Index) const;
    bool IsCheckTeleport(int Index) const;
    bool IsCheckEvilTeleport(int Index) const;
    int IsTeleportWeapon(int Index) const;
    int IsTeleportHook(int Index) const;
    int IsTeleCheckpoint(int Index) const;
    int IsSpeedup(int Index) const;
    int IsTune(int Index) const;
    void GetSpeedup(int Index, vec2 *pDir, int *pForce, int *pMaxSpeed, int *pType) const;
    int GetSwitchType(int Index) const;
    int GetSwitchNumber(int Index) const;
    int GetSwitchDelay(int Index) const;
 
    int IsSolid(int x, int y) const;
    bool IsThrough(int x, int y, int OffsetX, int OffsetY, vec2 Pos0, vec2 Pos1) const;
    bool IsHookBlocker(int x, int y, vec2 Pos0, vec2 Pos1) const;
    int IsWallJump(int Index) const;
    int IsNoLaser(int x, int y) const;
    int IsFrontNoLaser(int x, int y) const;
 
    int IsTimeCheckpoint(int Index) const;
    int IsFrontTimeCheckpoint(int Index) const;
 
    int MoverSpeed(int x, int y, vec2 *pSpeed) const;
 
    const CLayers *Layers() const { return m_pLayers; }
    const CTile *GameLayer() const { return m_pTiles; }
    const CTeleTile *TeleLayer() const { return m_pTele; }
    const CSpeedupTile *SpeedupLayer() const { return m_pSpeedup; }
    const CTile *FrontLayer() const { return m_pFront; }
    const CSwitchTile *SwitchLayer() const { return m_pSwitch; }
    const CTuneTile *TuneLayer() const { return m_pTune; }
 
    int m_HighestSwitchNumber;

    vec2 TeleAllGet(int Number, size_t Offset);

    size_t TeleAllSize(int Number);
 
    const std::vector<vec2> &TeleIns(int Number) { return m_TeleIns[Number]; }
    const std::vector<vec2> &TeleOuts(int Number) { return m_TeleOuts[Number]; }
    const std::vector<vec2> &TeleCheckOuts(int Number) { return m_TeleCheckOuts[Number]; }
    const std::vector<vec2> &TeleOthers(int Number) { return m_TeleOthers[Number]; }
 
private:
    CLayers *m_pLayers;
 
    int m_Width;
    int m_Height;
 
    CTile *m_pTiles;
    CTeleTile *m_pTele;
    CSpeedupTile *m_pSpeedup;
    CTile *m_pFront;
    CSwitchTile *m_pSwitch;
    CTuneTile *m_pTune;
    CDoorTile *m_pDoor;
 
    // TILE_TELEIN
    std::map<int, std::vector<vec2>> m_TeleIns;
    // TILE_TELEOUT
    std::map<int, std::vector<vec2>> m_TeleOuts;
    // TILE_TELECHECKOUT
    std::map<int, std::vector<vec2>> m_TeleCheckOuts;
    // TILE_TELEINEVIL, TILE_TELECHECK, TILE_TELECHECKIN, TILE_TELECHECKINEVIL
    std::map<int, std::vector<vec2>> m_TeleOthers;
};
 
void ThroughOffset(vec2 Pos0, vec2 Pos1, int *pOffsetX, int *pOffsetY);
#endif