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"@value":0.0 } ], "#sourceCode":[ "", "", "ecmascript:", "", "", "function NonLin(x)", "{", " var cAmount= .3;", " var cBmount= 1 - cAmount;", " return (x * x * (x>0? 1:-1)) * cAmount + (x) * cBmount; // TBD: Some exponential function would be better.", "}", "", "function userInput(inp)", "{", " lastUserInput= inp;", "", " if(sensorIsActive)", " {", " ProcessMoveInput(inp.y);", " ProcessRotateInput(inp.x);", " }", "}", "", "function damperedMoveInput(inp)", "{", " if(!sensorIsActive)", " ProcessMoveInput(inp);", "}", "", "function damperedRotateInput(inp)", "{", " if(!sensorIsActive)", " ProcessRotateInput(inp);", "}", "", "function ProcessMoveInput(inp)", "{", " MoveSpeed= NonLin(inp / cInputNominalX) * cNominalMoveSpeed;", "}", "", "function ProcessRotateInput(inp)", "{", " OriSpeed= NonLin(inp / cInputNominalY) * cNominalOriSpeed;", "}", "", "function set_sensorIsActive(a)", "{", " sensorIsActive= a;", "", " if(!a)", " {", " DieAwayMoveDamper.set_value= lastUserInput.y;", " DieAwayMoveDamper.set_destination= 0;", "", " DieAwayRotateDamper.set_value= lastUserInput.x;", " DieAwayRotateDamper.set_destination= 0;", "", " // They now creates a transition from lastUserInput.y to 0.", " }", "}", "", "function Tick(Now)", "{", " if(!lastTick)", " {", " lastTick= Now;", "return;", " }", "", " var DeltaT= Now - lastTick;", " lastTick= Now;", "", " if(OriSpeed || MoveSpeed)", " {", " ObjectOri= ObjectOri.multiply(new SFRotation(0, 1, 0, -OriSpeed * DeltaT));", " ObjectPos= ObjectPos.add(ObjectOri.multVec(new SFVec3f(0, 0, -MoveSpeed * DeltaT)));", "", " objectPos_changed= AddGroundHeight(ObjectPos);", " objectOri_changed= ObjectOri;", " }", "}", "", "// receives an SFVec3f of a position over ground, evaluates the ground height at that ", "// position and adds it to the y value of the vector.", "", "function AddGroundHeight(Vec)", "{", " var PosOnGrid= Vec.subtract(GroundTrans.translation);", "", " var FloatIdxX= PosOnGrid.x / GroundGrid.xSpacing;", " var FloatIdxZ= PosOnGrid.z / GroundGrid.zSpacing;", "", " var FracX= FloatIdxX - Math.floor(FloatIdxX);", " var FracZ= FloatIdxZ - Math.floor(FloatIdxZ);", "", "", " // We do linear interpolation in the square we have.", "", " var IdxLowerX= Math.floor(FloatIdxX);", " var IdxLowerZ= Math.floor(FloatIdxZ);", " var IdxHigherX= IdxLowerX + 1;", " var IdxHigherZ= IdxLowerZ + 1;", "", " if(IdxLowerX < 0) IdxLowerX= 0;", " if(IdxLowerZ < 0) IdxLowerZ= 0;", " if(IdxHigherX < 0) IdxHigherX= 0;", " if(IdxHigherZ < 0) IdxHigherZ= 0;", " if(IdxLowerX >= GroundGrid.xDimension) IdxLowerX= GroundGrid.xDimension - 1;", " if(IdxHigherX >= GroundGrid.xDimension) IdxHigherX= GroundGrid.xDimension - 1;", " if(IdxLowerZ >= GroundGrid.zDimension) IdxLowerZ= GroundGrid.zDimension - 1;", " if(IdxHigherZ >= GroundGrid.zDimension) IdxHigherZ= GroundGrid.zDimension - 1;", "", " var LowerXHeight= GetGroundGridHeightAt(IdxLowerX, IdxLowerZ) * (1 - FracZ) + GetGroundGridHeightAt(IdxLowerX, IdxHigherZ) * FracZ;", " var HigherXHeight= GetGroundGridHeightAt(IdxHigherX, IdxLowerZ) * (1 - FracZ) + GetGroundGridHeightAt(IdxHigherX, IdxHigherZ) * FracZ;", "", " var Height= LowerXHeight * (1 - FracX) + HigherXHeight * FracX;", "", " return new SFVec3f(Vec.x, Vec.y + Height, Vec.z);", "}", "", "function GetGroundGridHeightAt(IdxX, IdxZ)", "{", " return GroundGrid.height[IdxX + IdxZ * GroundGrid.xDimension];", "}", "", "" ] } }, { "ROUTE": { "@fromField":"userInput", "@fromNode":"ScrNaviSens", "@toField":"userInput", "@toNode":"ScrNavi" } }, { "ROUTE": { "@fromField":"isActive", "@fromNode":"TchNavi", "@toField":"set_sensorIsActive", "@toNode":"ScrNavi" } }, { "ROUTE": { "@fromField":"value_changed", "@fromNode":"DieAwayMoveDamper", "@toField":"damperedMoveInput", "@toNode":"ScrNavi" } }, { "ROUTE": { "@fromField":"value_changed", "@fromNode":"DieAwayRotateDamper", "@toField":"damperedRotateInput", "@toNode":"ScrNavi" } }, { "ROUTE": { "@fromField":"objectPos_changed", "@fromNode":"ScrNavi", "@toField":"translation", "@toNode":"TransObject" } }, { "ROUTE": { "@fromField":"objectOri_changed", "@fromNode":"ScrNavi", "@toField":"rotation", "@toNode":"TransObject" } }, { "TimeSensor": { "@DEF":"Timer", "@loop":true } }, { "ROUTE": { "@fromField":"time", "@fromNode":"Timer", "@toField":"Tick", "@toNode":"ScrNavi" } }, { "Script": { "@DEF":"ScriptThirdPersonView", "field": [ { "@name":"avatarPos", "@accessType":"initializeOnly", "@type":"SFVec3f", "@value":[0.0,0.0,0.0] }, { "@name":"cCameraOffsetPos", "@accessType":"initializeOnly", "@type":"SFVec3f", "@value":[0.0,4.0,8.0] }, { "@name":"set_avatarPos", "@accessType":"inputOnly", "@type":"SFVec3f" }, { "@name":"avatarOri", "@accessType":"initializeOnly", "@type":"SFRotation", "@value":[0.0,0.0,1.0,0.0] }, { "@name":"cCameraOffsetOri", "@accessType":"initializeOnly", "@type":"SFRotation", "@value":[1.0,0.0,0.0,-0.2] }, { "@name":"viewPos_changed", "@accessType":"outputOnly", "@type":"SFVec3f" }, { "@name":"set_avatarOri", "@accessType":"inputOnly", "@type":"SFRotation" }, { "@name":"viewOri_changed", "@accessType":"outputOnly", "@type":"SFRotation" } ], "#sourceCode":[ "", "", "ecmascript:", "", "function set_avatarPos(Pos)", "{", " avatarPos= Pos;", " Update();", "}", "", "function set_avatarOri(Ori)", "{", " avatarOri= Ori;", " Update();", "}", "", "function Update()", "{", " var viewPos= avatarPos.add(avatarOri.multVec(cCameraOffsetPos));", " var viewOri= cCameraOffsetOri.multiply(avatarOri);", "", " if( viewPos_changed != viewPos)", " viewPos_changed= viewPos;", "", " if( viewOri_changed != viewOri)", " viewOri_changed= viewOri;", "}", "", "" ] } }, { "ROUTE": { "@fromField":"objectPos_changed", "@fromNode":"ScrNavi", "@toField":"set_avatarPos", "@toNode":"ScriptThirdPersonView" } }, { "ROUTE": { "@fromField":"objectOri_changed", "@fromNode":"ScrNavi", "@toField":"set_avatarOri", "@toNode":"ScriptThirdPersonView" } }, { "ROUTE": { "@fromField":"viewPos_changed", "@fromNode":"ScriptThirdPersonView", "@toField":"position", "@toNode":"VP" } }, { "ROUTE": { "@fromField":"viewOri_changed", "@fromNode":"ScriptThirdPersonView", "@toField":"orientation", "@toNode":"VP" } }, { "Transform": { "@DEF":"TrShadow", "@scale":[1.75,1.0,1.2], "-children":[ { "Shape": { "-appearance": { "Appearance": { "-material": { "Material": { "@diffuseColor":[0.0,0.0,0.0], "@emissiveColor":[1.0,1.0,1.0], "@transparency":0.9 } }, "-texture": { "ImageTexture": { "@url":["MonkeyShadow.png","https://www.web3d.org/x3d/content/examples/Basic/Followers/MonkeyShadow.png"] } } } }, "-geometry": { "IndexedFaceSet": { "@coordIndex":[0,1,2,3,-1], "@solid":false, "-texCoord": { "TextureCoordinate": { "@point":[1.0,1.0,0.0,1.0,0.0,0.0,1.0,0.0] } }, "-coord": { "Coordinate": { "@point":[-1.0,0.0,-1.0,1.0,0.0,-1.0,1.0,0.0,1.0,-1.0,0.0,1.0] } } } } } } ] } }, { "Script": { "@DEF":"ScrShadowMgr", "field": [ { "@name":"ShadowPos_changed", "@accessType":"outputOnly", "@type":"SFVec3f" }, { "@name":"set_MonkeyPos", "@accessType":"inputOnly", "@type":"SFVec3f" }, { "@name":"ShadowOri_changed", "@accessType":"outputOnly", "@type":"SFRotation" }, { "@name":"MonkeyPos", "@accessType":"initializeOnly", "@type":"SFVec3f", "@value":[0.0,0.0,0.0] }, { "@name":"GroundTrans", "@accessType":"initializeOnly", "@type":"SFNode", "-children":[ { "Transform": { "@USE":"TrGround" } } ] }, { "@name":"set_MonkeyOri", "@accessType":"inputOnly", "@type":"SFRotation" }, { "@name":"GroundGrid", "@accessType":"initializeOnly", "@type":"SFNode", "-children":[ { "ElevationGrid": { "@USE":"EvGridGround" } } ] }, { "@name":"MonkeyOri", "@accessType":"initializeOnly", "@type":"SFRotation", "@value":[0.0,0.0,1.0,0.0] } ], "#sourceCode":[ "", "", "ecmascript:", "", "function set_MonkeyPos(Pos)", "{", " MonkeyPos= Pos;", " Update();", "}", "", "function set_MonkeyOri(Ori)", "{", " MonkeyOri= Ori;", " Update();", "}", "", "function Update()", "{", " ShadowPos_changed= AddGroundHeight(new SFVec3f(MonkeyPos.x, .4, MonkeyPos.z));", "", " var ViewDir= MonkeyOri.multVec(new SFVec3f(0, 0, -1));", " ViewDir.y= 0; // make it horizontal.", "", " var HorzOri= new SFRotation(new SFVec3f(0, 0, -1), ViewDir);", " // now we have a horizontal orientation only.", "", " // figure out the normal vector of the ground.", " // for this, figure out three points on the ground around the monkey position.", "", " var cRadius= 2.3;", "", " var EvGridPointA= AddGroundHeight((new SFVec3f(MonkeyPos.x, 0, MonkeyPos.z)).add(HorzOri.multVec((new SFVec3f( 0, 0, -1 )).multiply(cRadius))));", " var EvGridPointB= AddGroundHeight((new SFVec3f(MonkeyPos.x, 0, MonkeyPos.z)).add(HorzOri.multVec((new SFVec3f( .866, 0, .5)).multiply(cRadius))));", " var EvGridPointC= AddGroundHeight((new SFVec3f(MonkeyPos.x, 0, MonkeyPos.z)).add(HorzOri.multVec((new SFVec3f(-.866, 0, .5)).multiply(cRadius))));", "", " var Normal= EvGridPointC.subtract(EvGridPointA).cross(EvGridPointB.subtract(EvGridPointA));", "", " var NormalOri= new SFRotation(new SFVec3f(0, 1, 0), Normal);", "", " ShadowOri_changed= HorzOri.multiply(NormalOri);", "}", "", "// receives an SFVec3f of a position over ground, evaluates the ground height at that ", "// position and adds it to the y value of the vecotr.", "", "function AddGroundHeight(Vec)", "{", " var PosOnGrid= Vec.subtract(GroundTrans.translation);", "", " var FloatIdxX= PosOnGrid.x / GroundGrid.xSpacing;", " var FloatIdxZ= PosOnGrid.z / GroundGrid.zSpacing;", "", " var FracX= FloatIdxX - Math.floor(FloatIdxX);", " var FracZ= FloatIdxZ - Math.floor(FloatIdxZ);", "", "", " // We do linear interpolation in the square we have.", "", " var IdxLowerX= Math.floor(FloatIdxX);", " var IdxLowerZ= Math.floor(FloatIdxZ);", " var IdxHigherX= IdxLowerX + 1;", " var IdxHigherZ= IdxLowerZ + 1;", "", " if(IdxLowerX < 0) IdxLowerX= 0;", " if(IdxLowerZ < 0) IdxLowerZ= 0;", " if(IdxHigherX < 0) IdxHigherX= 0;", " if(IdxHigherZ < 0) IdxHigherZ= 0;", " if(IdxLowerX >= GroundGrid.xDimension) IdxLowerX= GroundGrid.xDimension - 1;", " if(IdxHigherX >= GroundGrid.xDimension) IdxHigherX= GroundGrid.xDimension - 1;", " if(IdxLowerZ >= GroundGrid.zDimension) IdxLowerZ= GroundGrid.zDimension - 1;", " if(IdxHigherZ >= GroundGrid.zDimension) IdxHigherZ= GroundGrid.zDimension - 1;", "", " var LowerXHeight= GetGroundGridHeightAt(IdxLowerX, IdxLowerZ) * (1 - FracZ) + GetGroundGridHeightAt(IdxLowerX, IdxHigherZ) * FracZ;", " var HigherXHeight= GetGroundGridHeightAt(IdxHigherX, IdxLowerZ) * (1 - FracZ) + GetGroundGridHeightAt(IdxHigherX, IdxHigherZ) * FracZ;", "", " var Height= LowerXHeight * (1 - FracX) + HigherXHeight * FracX;", "", " return new SFVec3f(Vec.x, Vec.y + Height, Vec.z);", "}", "", "function GetGroundGridHeightAt(IdxX, IdxZ)", "{", " return GroundGrid.height[IdxX + IdxZ * GroundGrid.xDimension];", "}", "", "" ] } }, { "ROUTE": { "@fromField":"objectPos_changed", "@fromNode":"ScrNavi", "@toField":"set_MonkeyPos", "@toNode":"ScrShadowMgr" } }, { "ROUTE": { "@fromField":"objectOri_changed", "@fromNode":"ScrNavi", "@toField":"set_MonkeyOri", "@toNode":"ScrShadowMgr" } }, { "ROUTE": { "@fromField":"ShadowPos_changed", "@fromNode":"ScrShadowMgr", "@toField":"translation", "@toNode":"TrShadow" } }, { "ROUTE": { "@fromField":"ShadowOri_changed", "@fromNode":"ScrShadowMgr", "@toField":"rotation", "@toNode":"TrShadow" } } ] } } }