SCR_ManualCameraParam.c

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class SCR_ManualCameraParam
{
    protected const float TRACE_DIS = 250;
    
    float timeSlice; 
    BaseWorld world; 
    IEntity target; 
    private vector cursorWorldPos;
    
    EManualCameraFlag flag; 
    
    vector transformOriginal[4]; 
    vector transform[4]; 
    vector rotOriginal; 
    vector rotDelta; 
    vector velocityOriginal; 
    
    vector multiplier; 
    
    float fovOriginal; 
    float fov; 
    
    bool isManualInputEnabled; 
    bool isManualInput; 
    bool isCursorEnabled = true; 
    bool isDirty; 
    bool isDirtyExternal; 
    
    //------------------------------------------------------------------------------------------------
    void SetDeltaPos(vector deltaPos)
    {
        transform[3] = transform[3]
            + (transform[0] * deltaPos[0]) //--- Lateral
            + (transform[1] * deltaPos[1]) //--- Vertical
            + (transform[2] * deltaPos[2]); //--- Longitudinal
    }
 
    //------------------------------------------------------------------------------------------------
    bool GetCursorWorldPos(out vector outPos = vector.Zero)
    {
        //--- Return cached position
        if (cursorWorldPos != vector.Zero)
        {
            outPos = cursorWorldPos;
            return true;
        }
            
        //-- Calculate new position
        WorkspaceWidget workspace = GetGame().GetWorkspace();
        if (!workspace || !world) return false;
        
        int mouseX, mouseY;
        if (GetGame().GetInputManager().IsUsingMouseAndKeyboard())
        {
            WidgetManager.GetMousePos(mouseX, mouseY);
        }
        else
        {
            mouseX = workspace.GetWidth();
            mouseY = workspace.GetHeight();         
            mouseX /= 2;
            mouseY /= 2;
        }
        
        vector outDir;
        vector startPos = workspace.ProjScreenToWorld(workspace.DPIUnscale(mouseX), workspace.DPIUnscale(mouseY), outDir, world, -1);
        outDir *= TRACE_DIS;
    
        autoptr TraceParam trace = new TraceParam();
        trace.Start = startPos;
        trace.End = startPos + outDir;
        trace.Flags = TraceFlags.WORLD | TraceFlags.OCEAN | TraceFlags.ENTS;
        trace.LayerMask = EPhysicsLayerPresets.Projectile;
        
        float traceDis = world.TraceMove(trace, null);
        if (traceDis == 1) return false;
 
        if (trace.TraceEnt && !trace.TraceEnt.IsInherited(GenericTerrainEntity)) target = trace.TraceEnt;
        cursorWorldPos = startPos + outDir * traceDis;
        outPos = cursorWorldPos;
        return true;
    }
 
    //------------------------------------------------------------------------------------------------
    void SetCursorWorldPos(vector pos)
    {
        cursorWorldPos = pos;
    }
 
    //------------------------------------------------------------------------------------------------
    void ShowDebug(SCR_ManualCamera camera)
    {
        DbgUI.Begin("SCR_ManualCameraParam", 0, 0);
        
        DbgUI.Text(string.Format("GetParent() = %1", camera.GetParent()));
        DbgUI.Text("flag = ");
        array<int> flagValues = new array<int>;
        SCR_Enum.BitToIntArray(flag, flagValues);
        foreach (int i: flagValues)
        {
            DbgUI.Text("  " + typename.EnumToString(EManualCameraFlag, i));
        }   
        DbgUI.Text(string.Format("target = %1", target));
        DbgUI.Text("isDirty = " + isDirty.ToString());
        DbgUI.Text("isManualInput = " + isManualInput.ToString());
        DbgUI.Text("isManualInputEnabled = " + isManualInputEnabled.ToString());
        DbgUI.Text("isCursorEnabled = " + isCursorEnabled.ToString());
        DbgUI.Text("multiplier = " + multiplier.ToString());
        DbgUI.Text("fov = " + fov.ToString());
        DbgUI.Text("rotOriginal = " + rotOriginal.ToString());
        DbgUI.Text("rotDelta = " + rotDelta.ToString());
        DbgUI.Text("posDelta = " + (transform[3] - transformOriginal[3]).ToString());
        DbgUI.Text("transformOriginal: ");
        DbgUI.Text("o[0] = " + transformOriginal[0].ToString());
        DbgUI.Text("o[1] = " + transformOriginal[1].ToString());
        DbgUI.Text("o[2] = " + transformOriginal[2].ToString());
        DbgUI.Text("o[3] = " + transformOriginal[3].ToString());
        DbgUI.Text("transform: ");
        DbgUI.Text("[0] = " + transform[0].ToString());
        DbgUI.Text("[1] = " + transform[1].ToString());
        DbgUI.Text("[2] = " + transform[2].ToString());
        DbgUI.Text("[3] = " + transform[3].ToString());
        DbgUI.Text("velocityOriginal = " + velocityOriginal.ToString());
 
        DbgUI.Spacer(30);
        bool showGraphs;
        DbgUI.Check("Show Graphs", showGraphs);
        if (showGraphs)
        {
            DbgUI.Spacer(20);
            DbgUI.Text("multiplier");
            DbgUI.PlotLive("multiplier0", 500, 50, multiplier[0], 0.01, 100, ARGBF(1, 1, 0, 0));
            DbgUI.PlotLive("multiplier1", 500, 50, multiplier[1], 0.01, 100, ARGBF(1, 0, 1, 0));
            DbgUI.PlotLive("multiplier2", 500, 50, multiplier[2], 0.01, 100, ARGBF(1, 0, 0, 1));
            
            DbgUI.Spacer(20);
            DbgUI.Text("transformDelta");
            DbgUI.PlotLive("transform0", 500, 50, transform[3][0] - transformOriginal[3][0], 0.01, 100, ARGBF(1, 1, 0, 0));
            DbgUI.PlotLive("transform1", 500, 50, transform[3][1] - transformOriginal[3][1], 0.01, 100, ARGBF(1, 0, 1, 0));
            DbgUI.PlotLive("transform2", 500, 50, transform[3][2] - transformOriginal[3][2], 0.01, 100, ARGBF(1, 0, 0, 1));
    
            DbgUI.Spacer(20);
            DbgUI.Text("rotDelta");
            DbgUI.PlotLive("rotDelta0", 500, 50, rotDelta[0], 0.01, 100, ARGBF(1, 1, 0, 0));
            DbgUI.PlotLive("rotDelta1", 500, 50, rotDelta[1], 0.01, 100, ARGBF(1, 0, 1, 0));
            DbgUI.PlotLive("rotDelta2", 500, 50, rotDelta[2], 0.01, 100, ARGBF(1, 0, 0, 1));
        }
        DbgUI.End();
    }
    
    //------------------------------------------------------------------------------------------------
    void ProcessTransform()
    {
        //--- Rotation (prevent from looking straigh up or down)
        vector angles = Math3D.MatrixToAngles(transform);
        angles += rotDelta * timeSlice;
        angles[1] = Math.Clamp(angles[1], -89, 89);
        Math3D.AnglesToMatrix(angles, transform);
    }
 
    //------------------------------------------------------------------------------------------------
    // constructor
    void SCR_ManualCameraParam(vector transformOriginalIn[4], float timeSliceIn, BaseWorld worldIn, float fovIn, bool isManualInputEnabledIn, vector velocityOriginalIn, EManualCameraFlag flagIn)
    {
        timeSlice = timeSliceIn;
        //isDirty = timeSlice != 0;
        multiplier[0] = timeSliceIn;
        multiplier[1] = timeSliceIn;
        flag = flagIn;
        isManualInputEnabled = isManualInputEnabledIn;
        fov = fovIn;
        fovOriginal = fovIn;
        world = worldIn;
        transformOriginal = transformOriginalIn;
        velocityOriginal = velocityOriginalIn;
        Math3D.MatrixCopy(transformOriginal, transform);
        rotOriginal = Math3D.MatrixToAngles(transformOriginal);
    }
}