render.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_CLIENT_RENDER_H
#define GAME_CLIENT_RENDER_H
 
#include <engine/client/enums.h>
 
#include <base/color.h>
#include <base/vmath.h>
 
#include <game/client/skin.h>
#include <game/client/ui_rect.h>
#include <game/generated/protocol7.h>
 
class CAnimState;
class CSpeedupTile;
class CSwitchTile;
class CTeleTile;
class CTile;
class CTuneTile;
namespace client_data7 {
struct CDataSprite;
}
struct CDataSprite;
struct CEnvPoint;
struct CEnvPointBezier;
struct CEnvPointBezier_upstream;
struct CMapItemGroup;
struct CQuad;
 
#include <game/generated/protocol.h>
 
class CTeeRenderInfo
{
public:
    CTeeRenderInfo()
    {
        Reset();
    }
 
    void Reset()
    {
        m_OriginalRenderSkin.Reset();
        m_ColorableRenderSkin.Reset();
        m_SkinMetrics.Reset();
        m_CustomColoredSkin = false;
        m_BloodColor = ColorRGBA(1.0f, 1.0f, 1.0f, 1.0f);
        m_ColorBody = ColorRGBA(1.0f, 1.0f, 1.0f, 1.0f);
        m_ColorFeet = ColorRGBA(1.0f, 1.0f, 1.0f, 1.0f);
        m_Size = 1.0f;
        m_GotAirJump = true;
        m_TeeRenderFlags = 0;
        m_FeetFlipped = false;
 
        for(auto &Sixup : m_aSixup)
            Sixup.Reset();
    }
 
    void Apply(const CSkin *pSkin)
    {
        m_OriginalRenderSkin = pSkin->m_OriginalSkin;
        m_ColorableRenderSkin = pSkin->m_ColorableSkin;
        m_BloodColor = pSkin->m_BloodColor;
        m_SkinMetrics = pSkin->m_Metrics;
    }
 
    void ApplyColors(bool CustomColoredSkin, int ColorBody, int ColorFeet)
    {
        m_CustomColoredSkin = CustomColoredSkin;
        if(CustomColoredSkin)
        {
            m_ColorBody = color_cast<ColorRGBA>(ColorHSLA(ColorBody).UnclampLighting(ColorHSLA::DARKEST_LGT));
            m_ColorFeet = color_cast<ColorRGBA>(ColorHSLA(ColorFeet).UnclampLighting(ColorHSLA::DARKEST_LGT));
        }
        else
        {
            m_ColorBody = ColorRGBA(1.0f, 1.0f, 1.0f, 1.0f);
            m_ColorFeet = ColorRGBA(1.0f, 1.0f, 1.0f, 1.0f);
        }
    }
 
    CSkin::SSkinTextures m_OriginalRenderSkin;
    CSkin::SSkinTextures m_ColorableRenderSkin;
 
    CSkin::SSkinMetrics m_SkinMetrics;
 
    bool m_CustomColoredSkin;
    ColorRGBA m_BloodColor;
 
    ColorRGBA m_ColorBody;
    ColorRGBA m_ColorFeet;
    float m_Size;
    bool m_GotAirJump;
    int m_TeeRenderFlags;
    bool m_FeetFlipped;
 
    bool Valid() const
    {
        return m_CustomColoredSkin ? m_ColorableRenderSkin.m_Body.IsValid() : m_OriginalRenderSkin.m_Body.IsValid();
    }
 
    class CSixup
    {
    public:
        void Reset()
        {
            for(auto &Texture : m_aTextures)
                Texture = IGraphics::CTextureHandle();
            m_BotTexture = IGraphics::CTextureHandle();
            for(ColorRGBA &PartColor : m_aColors)
            {
                PartColor = ColorRGBA(1.0f, 1.0f, 1.0f, 1.0f);
            }
            m_HatSpriteIndex = 0;
            m_BotColor = ColorRGBA(1.0f, 1.0f, 1.0f, 1.0f);
        }
        bool Valid() const
        {
            for(const auto &Texture : m_aTextures)
                if(!Texture.IsValid())
                    return false;
            return true;
        }
 
        IGraphics::CTextureHandle m_aTextures[protocol7::NUM_SKINPARTS];
        ColorRGBA m_aColors[protocol7::NUM_SKINPARTS];
        IGraphics::CTextureHandle m_HatTexture;
        IGraphics::CTextureHandle m_BotTexture;
        int m_HatSpriteIndex;
        ColorRGBA m_BotColor;
    };
 
    CSixup m_aSixup[NUM_DUMMIES];
};
 
// Tee Render Flags
enum
{
    TEE_EFFECT_FROZEN = 1,
    TEE_NO_WEAPON = 2,
    TEE_EFFECT_SPARKLE = 4,
};
 
// sprite renderings
enum
{
    SPRITE_FLAG_FLIP_Y = 1,
    SPRITE_FLAG_FLIP_X = 2,
 
    LAYERRENDERFLAG_OPAQUE = 1,
    LAYERRENDERFLAG_TRANSPARENT = 2,
 
    TILERENDERFLAG_EXTEND = 4,
};
 
class IEnvelopePointAccess
{
public:
    virtual ~IEnvelopePointAccess() = default;
    virtual int NumPoints() const = 0;
    virtual const CEnvPoint *GetPoint(int Index) const = 0;
    virtual const CEnvPointBezier *GetBezier(int Index) const = 0;
};
 
class CMapBasedEnvelopePointAccess : public IEnvelopePointAccess
{
    int m_StartPoint;
    int m_NumPoints;
    int m_NumPointsMax;
    CEnvPoint *m_pPoints;
    CEnvPointBezier *m_pPointsBezier;
    CEnvPointBezier_upstream *m_pPointsBezierUpstream;
 
public:
    CMapBasedEnvelopePointAccess(class CDataFileReader *pReader);
    CMapBasedEnvelopePointAccess(class IMap *pMap);
    void SetPointsRange(int StartPoint, int NumPoints);
    int StartPoint() const;
    int NumPoints() const override;
    int NumPointsMax() const;
    const CEnvPoint *GetPoint(int Index) const override;
    const CEnvPointBezier *GetBezier(int Index) const override;
};
 
typedef void (*ENVELOPE_EVAL)(int TimeOffsetMillis, int Env, ColorRGBA &Result, size_t Channels, void *pUser);
 
class CRenderTools
{
    class IGraphics *m_pGraphics;
    class ITextRender *m_pTextRender;
 
    int m_TeeQuadContainerIndex;
 
    static void GetRenderTeeBodyScale(float BaseSize, float &BodyScale);
    static void GetRenderTeeFeetScale(float BaseSize, float &FeetScaleWidth, float &FeetScaleHeight);
 
    void SelectSprite(const CDataSprite *pSprite, int Flags) const;
 
    void RenderTee6(const CAnimState *pAnim, const CTeeRenderInfo *pInfo, int Emote, vec2 Dir, vec2 Pos, float Alpha = 1.0f) const;
    void RenderTee7(const CAnimState *pAnim, const CTeeRenderInfo *pInfo, int Emote, vec2 Dir, vec2 Pos, float Alpha = 1.0f) const;
 
public:
    class IGraphics *Graphics() const { return m_pGraphics; }
    class ITextRender *TextRender() const { return m_pTextRender; }
 
    void Init(class IGraphics *pGraphics, class ITextRender *pTextRender);
 
    void SelectSprite(int Id, int Flags = 0) const;
    void SelectSprite7(int Id, int Flags = 0) const;
 
    void GetSpriteScale(const CDataSprite *pSprite, float &ScaleX, float &ScaleY) const;
    void GetSpriteScale(int Id, float &ScaleX, float &ScaleY) const;
    void GetSpriteScaleImpl(int Width, int Height, float &ScaleX, float &ScaleY) const;
 
    void DrawSprite(float x, float y, float Size) const;
    void DrawSprite(float x, float y, float ScaledWidth, float ScaledHeight) const;
    void RenderCursor(vec2 Center, float Size) const;
    void RenderIcon(int ImageId, int SpriteId, const CUIRect *pRect, const ColorRGBA *pColor = nullptr) const;
    int QuadContainerAddSprite(int QuadContainerIndex, float x, float y, float Size) const;
    int QuadContainerAddSprite(int QuadContainerIndex, float Size) const;
    int QuadContainerAddSprite(int QuadContainerIndex, float Width, float Height) const;
    int QuadContainerAddSprite(int QuadContainerIndex, float X, float Y, float Width, float Height) const;
 
    // larger rendering methods
    static void GetRenderTeeBodySize(const CAnimState *pAnim, const CTeeRenderInfo *pInfo, vec2 &BodyOffset, float &Width, float &Height);
    static void GetRenderTeeFeetSize(const CAnimState *pAnim, const CTeeRenderInfo *pInfo, vec2 &FeetOffset, float &Width, float &Height);
    static void GetRenderTeeAnimScaleAndBaseSize(const CTeeRenderInfo *pInfo, float &AnimScale, float &BaseSize);
 
    // returns the offset to use, to render the tee with @see RenderTee exactly in the mid
    static void GetRenderTeeOffsetToRenderedTee(const CAnimState *pAnim, const CTeeRenderInfo *pInfo, vec2 &TeeOffsetToMid);
    // object render methods
    void RenderTee(const CAnimState *pAnim, const CTeeRenderInfo *pInfo, int Emote, vec2 Dir, vec2 Pos, float Alpha = 1.0f) const;
 
    // map render methods (render_map.cpp)
    static void RenderEvalEnvelope(const IEnvelopePointAccess *pPoints, std::chrono::nanoseconds TimeNanos, ColorRGBA &Result, size_t Channels);
    void RenderQuads(CQuad *pQuads, int NumQuads, int Flags, ENVELOPE_EVAL pfnEval, void *pUser) const;
    void ForceRenderQuads(CQuad *pQuads, int NumQuads, int Flags, ENVELOPE_EVAL pfnEval, void *pUser, float Alpha = 1.0f) const;
    void RenderTilemap(CTile *pTiles, int w, int h, float Scale, ColorRGBA Color, int RenderFlags) const;
 
    // render a rectangle made of IndexIn tiles, over a background made of IndexOut tiles
    // the rectangle include all tiles in [RectX, RectX+RectW-1] x [RectY, RectY+RectH-1]
    void RenderTileRectangle(int RectX, int RectY, int RectW, int RectH, unsigned char IndexIn, unsigned char IndexOut, float Scale, ColorRGBA Color, int RenderFlags) const;
 
    void RenderTile(int x, int y, unsigned char Index, float Scale, ColorRGBA Color) const;
 
    // helpers
    void CalcScreenParams(float Aspect, float Zoom, float *pWidth, float *pHeight);
    void MapScreenToWorld(float CenterX, float CenterY, float ParallaxX, float ParallaxY,
        float ParallaxZoom, float OffsetX, float OffsetY, float Aspect, float Zoom, float *pPoints);
    void MapScreenToGroup(float CenterX, float CenterY, CMapItemGroup *pGroup, float Zoom);
    void MapScreenToInterface(float CenterX, float CenterY);
 
    // DDRace
 
    void RenderTeleOverlay(CTeleTile *pTele, int w, int h, float Scale, float Alpha = 1.0f) const;
    void RenderSpeedupOverlay(CSpeedupTile *pSpeedup, int w, int h, float Scale, float Alpha = 1.0f) const;
    void RenderSwitchOverlay(CSwitchTile *pSwitch, int w, int h, float Scale, float Alpha = 1.0f) const;
    void RenderTuneOverlay(CTuneTile *pTune, int w, int h, float Scale, float Alpha = 1.0f) const;
    void RenderTelemap(CTeleTile *pTele, int w, int h, float Scale, ColorRGBA Color, int RenderFlags) const;
    void RenderSpeedupmap(CSpeedupTile *pSpeedup, int w, int h, float Scale, ColorRGBA Color, int RenderFlags) const;
    void RenderSwitchmap(CSwitchTile *pSwitch, int w, int h, float Scale, ColorRGBA Color, int RenderFlags) const;
    void RenderTunemap(CTuneTile *pTune, int w, int h, float Scale, ColorRGBA Color, int RenderFlags) const;
};
 
#endif