GeoGebra版2048文字游戏
2021-01-03 08:09
本范例使用GeoGebra实现了经典的2048数字合并游戏。通过矩阵转置、序列和随机离散分布等命令，结合按钮交互与网格对象，构建了4x4的游戏面板。玩家可通过方向按钮移动数字方块，体验算法逻辑与条件判断在数学软件中的巧妙应用，展示了GeoGebra在交互式程序设计方面的强大功能。
所属专题
用GeoGebra制作数学游戏
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<symbolic val="true" />
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<fixed val="true"/>
<auxiliary val="true"/>
<ggbscript val="board={{0,0,0,0},{0,2,0,0},{0,0,2,0},{0,0,0,0}}"/>
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<ggbscript val="col1=CopyFreeObject(Element(Transpose(board),1))
col2=CopyFreeObject(Element(Transpose(board),2))
col3=CopyFreeObject(Element(Transpose(board),3))
col4=CopyFreeObject(Element(Transpose(board),4))

col1=CopyFreeObject(Join[KeepIf[x!=0,col1],KeepIf[x==0,col1]])
col2=CopyFreeObject(Join[KeepIf[x!=0,col2],KeepIf[x==0,col2]])
col3=CopyFreeObject(Join[KeepIf[x!=0,col3],KeepIf[x==0,col3]])
col4=CopyFreeObject(Join[KeepIf[x!=0,col4],KeepIf[x==0,col4]])

If[col1(1)==col1(2),Execute[{"SetValue(col1,1,col1(1)+col1(2))","SetValue(col1,2,0)"}]]
If[col1(2)==col1(3),Execute[{"SetValue(col1,2,col1(2)+col1(3))","SetValue(col1,3,0)"}]]
If[col1(3)==col1(4),Execute[{"SetValue(col1,3,col1(3)+col1(4))","SetValue(col1,4,0)"}]]

If[col2(1)==col2(2),Execute[{"SetValue(col2,1,col2(1)+col2(2))","SetValue(col2,2,0)"}]]
If[col2(2)==col2(3),Execute[{"SetValue(col2,2,col2(2)+col2(3))","SetValue(col2,3,0)"}]]
If[col2(3)==col2(4),Execute[{"SetValue(col2,3,col2(3)+col2(4))","SetValue(col2,4,0)"}]]

If[col3(1)==col3(2),Execute[{"SetValue(col3,1,col3(1)+col3(2))","SetValue(col3,2,0)"}]]
If[col3(2)==col3(3),Execute[{"SetValue(col3,2,col3(2)+col3(3))","SetValue(col3,3,0)"}]]
If[col3(3)==col3(4),Execute[{"SetValue(col3,3,col3(3)+col3(4))","SetValue(col3,4,0)"}]]

If[col4(1)==col4(2),Execute[{"SetValue(col4,1,col4(1)+col4(2))","SetValue(col4,2,0)"}]]
If[col4(2)==col4(3),Execute[{"SetValue(col4,2,col4(2)+col4(3))","SetValue(col4,3,0)"}]]
If[col4(3)==col4(4),Execute[{"SetValue(col4,3,col4(3)+col4(4))","SetValue(col4,4,0)"}]]

col1=CopyFreeObject(Join[KeepIf[x!=0,col1],KeepIf[x==0,col1]])
col2=CopyFreeObject(Join[KeepIf[x!=0,col2],KeepIf[x==0,col2]])
col3=CopyFreeObject(Join[KeepIf[x!=0,col3],KeepIf[x==0,col3]])
col4=CopyFreeObject(Join[KeepIf[x!=0,col4],KeepIf[x==0,col4]])


If[board!=boardUp,Execute({exeCol})]
If[board!=boardUp,Execute[{"SetValue(board,boardUp)"}]]

SelectObjects( )"/>
<ggbscript onUpdate="
"/>
<font serif="false" sizeM="8" size="112" style="0"/>
<file name="geogebra/gui/images/go-up.png"/>
<dimensions width="600" height="160" />
<startPoint x="-5.45" y="6.9" z="1"/>
</element>
<element type="button" label="buttonDown">
<show object="true" label="true"/>
<objColor r="0" g="0" b="0" alpha="1"/>
<bgColor r="153" g="255" b="153" alpha="255"/>
<layer val="0"/>
<labelOffset x="83" y="569"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<auxiliary val="true"/>
<ggbscript val="col1=Reverse[CopyFreeObject(Element(Transpose(board),1))]
col2=Reverse[CopyFreeObject(Element(Transpose(board),2))]
col3=Reverse[CopyFreeObject(Element(Transpose(board),3))]
col4=Reverse[CopyFreeObject(Element(Transpose(board),4))]

col1=CopyFreeObject(Join[KeepIf[x!=0,col1],KeepIf[x==0,col1]])
col2=CopyFreeObject(Join[KeepIf[x!=0,col2],KeepIf[x==0,col2]])
col3=CopyFreeObject(Join[KeepIf[x!=0,col3],KeepIf[x==0,col3]])
col4=CopyFreeObject(Join[KeepIf[x!=0,col4],KeepIf[x==0,col4]])

If[col1(1)==col1(2),Execute[{"SetValue(col1,1,col1(1)+col1(2))","SetValue(col1,2,0)"}]]
If[col1(2)==col1(3),Execute[{"SetValue(col1,2,col1(2)+col1(3))","SetValue(col1,3,0)"}]]
If[col1(3)==col1(4),Execute[{"SetValue(col1,3,col1(3)+col1(4))","SetValue(col1,4,0)"}]]

If[col2(1)==col2(2),Execute[{"SetValue(col2,1,col2(1)+col2(2))","SetValue(col2,2,0)"}]]
If[col2(2)==col2(3),Execute[{"SetValue(col2,2,col2(2)+col2(3))","SetValue(col2,3,0)"}]]
If[col2(3)==col2(4),Execute[{"SetValue(col2,3,col2(3)+col2(4))","SetValue(col2,4,0)"}]]

If[col3(1)==col3(2),Execute[{"SetValue(col3,1,col3(1)+col3(2))","SetValue(col3,2,0)"}]]
If[col3(2)==col3(3),Execute[{"SetValue(col3,2,col3(2)+col3(3))","SetValue(col3,3,0)"}]]
If[col3(3)==col3(4),Execute[{"SetValue(col3,3,col3(3)+col3(4))","SetValue(col3,4,0)"}]]

If[col4(1)==col4(2),Execute[{"SetValue(col4,1,col4(1)+col4(2))","SetValue(col4,2,0)"}]]
If[col4(2)==col4(3),Execute[{"SetValue(col4,2,col4(2)+col4(3))","SetValue(col4,3,0)"}]]
If[col4(3)==col4(4),Execute[{"SetValue(col4,3,col4(3)+col4(4))","SetValue(col4,4,0)"}]]

col1=CopyFreeObject(Join[KeepIf[x!=0,col1],KeepIf[x==0,col1]])
col2=CopyFreeObject(Join[KeepIf[x!=0,col2],KeepIf[x==0,col2]])
col3=CopyFreeObject(Join[KeepIf[x!=0,col3],KeepIf[x==0,col3]])
col4=CopyFreeObject(Join[KeepIf[x!=0,col4],KeepIf[x==0,col4]])


If[board!=boardDown,Execute({exeCol})]
If[board!=boardDown,Execute[{"SetValue(board,boardDown)"}]]


SelectObjects( )"/>
<font serif="false" sizeM="8" size="112" style="0"/>
<file name="geogebra/gui/images/go-down.png"/>
<dimensions width="600" height="160" />
<startPoint x="-5.45" y="-4" z="1"/>
</element>
<element type="button" label="buttonRight">
<show object="true" label="true"/>
<objColor r="0" g="0" b="0" alpha="1"/>
<bgColor r="255" g="51" b="102" alpha="255"/>
<layer val="0"/>
<labelOffset x="583" y="-11"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<auxiliary val="true"/>
<ggbscript val="row1=Reverse[CopyFreeObject(Element(board,1))]
row2=Reverse[CopyFreeObject(Element(board,2))]
row3=Reverse[CopyFreeObject(Element(board,3))]
row4=Reverse[CopyFreeObject(Element(board,4))]

row1=CopyFreeObject(Join[KeepIf[x!=0,row1],KeepIf[x==0,row1]])
row2=CopyFreeObject(Join[KeepIf[x!=0,row2],KeepIf[x==0,row2]])
row3=CopyFreeObject(Join[KeepIf[x!=0,row3],KeepIf[x==0,row3]])
row4=CopyFreeObject(Join[KeepIf[x!=0,row4],KeepIf[x==0,row4]])

If[row1(1)==row1(2),Execute[{"SetValue(row1,1,row1(1)+row1(2))","SetValue(row1,2,0)"}]]
If[row1(2)==row1(3),Execute[{"SetValue(row1,2,row1(2)+row1(3))","SetValue(row1,3,0)"}]]
If[row1(3)==row1(4),Execute[{"SetValue(row1,3,row1(3)+row1(4))","SetValue(row1,4,0)"}]]

If[row2(1)==row2(2),Execute[{"SetValue(row2,1,row2(1)+row2(2))","SetValue(row2,2,0)"}]]
If[row2(2)==row2(3),Execute[{"SetValue(row2,2,row2(2)+row2(3))","SetValue(row2,3,0)"}]]
If[row2(3)==row2(4),Execute[{"SetValue(row2,3,row2(3)+row2(4))","SetValue(row2,4,0)"}]]

If[row3(1)==row3(2),Execute[{"SetValue(row3,1,row3(1)+row3(2))","SetValue(row3,2,0)"}]]
If[row3(2)==row3(3),Execute[{"SetValue(row3,2,row3(2)+row3(3))","SetValue(row3,3,0)"}]]
If[row3(3)==row3(4),Execute[{"SetValue(row3,3,row3(3)+row3(4))","SetValue(row3,4,0)"}]]

If[row4(1)==row4(2),Execute[{"SetValue(row4,1,row4(1)+row4(2))","SetValue(row4,2,0)"}]]
If[row4(2)==row4(3),Execute[{"SetValue(row4,2,row4(2)+row4(3))","SetValue(row4,3,0)"}]]
If[row4(3)==row4(4),Execute[{"SetValue(row4,3,row4(3)+row4(4))","SetValue(row4,4,0)"}]]

row1=CopyFreeObject(Join[KeepIf[x!=0,row1],KeepIf[x==0,row1]])
row2=CopyFreeObject(Join[KeepIf[x!=0,row2],KeepIf[x==0,row2]])
row3=CopyFreeObject(Join[KeepIf[x!=0,row3],KeepIf[x==0,row3]])
row4=CopyFreeObject(Join[KeepIf[x!=0,row4],KeepIf[x==0,row4]])

If[board!=boardRight,Execute({exeRow})]
If[board!=boardRight,Execute[{"SetValue(board,boardRight)"}]]

SelectObjects( )"/>
<font serif="false" sizeM="8" size="112" style="0"/>
<file name="geogebra/gui/images/go-next.png"/>
<dimensions width="150" height="800" />
<startPoint x="4" y="7.3" z="1"/>
</element>
<element type="button" label="buttonLeft">
<show object="true" label="true"/>
<objColor r="0" g="0" b="0" alpha="1"/>
<bgColor r="0" g="255" b="255" alpha="255"/>
<layer val="0"/>
<labelOffset x="6" y="-11"/>
<labelMode val="3"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<auxiliary val="true"/>
<ggbscript val="row1=CopyFreeObject(Element(board,1))
row2=CopyFreeObject(Element(board,2))
row3=CopyFreeObject(Element(board,3))
row4=CopyFreeObject(Element(board,4))

row1=CopyFreeObject(Join[KeepIf[x!=0,row1],KeepIf[x==0,row1]])
row2=CopyFreeObject(Join[KeepIf[x!=0,row2],KeepIf[x==0,row2]])
row3=CopyFreeObject(Join[KeepIf[x!=0,row3],KeepIf[x==0,row3]])
row4=CopyFreeObject(Join[KeepIf[x!=0,row4],KeepIf[x==0,row4]])

If[row1(1)==row1(2),Execute[{"SetValue(row1,1,row1(1)+row1(2))","SetValue(row1,2,0)"}]]
If[row1(2)==row1(3),Execute[{"SetValue(row1,2,row1(2)+row1(3))","SetValue(row1,3,0)"}]]
If[row1(3)==row1(4),Execute[{"SetValue(row1,3,row1(3)+row1(4))","SetValue(row1,4,0)"}]]

If[row2(1)==row2(2),Execute[{"SetValue(row2,1,row2(1)+row2(2))","SetValue(row2,2,0)"}]]
If[row2(2)==row2(3),Execute[{"SetValue(row2,2,row2(2)+row2(3))","SetValue(row2,3,0)"}]]
If[row2(3)==row2(4),Execute[{"SetValue(row2,3,row2(3)+row2(4))","SetValue(row2,4,0)"}]]

If[row3(1)==row3(2),Execute[{"SetValue(row3,1,row3(1)+row3(2))","SetValue(row3,2,0)"}]]
If[row3(2)==row3(3),Execute[{"SetValue(row3,2,row3(2)+row3(3))","SetValue(row3,3,0)"}]]
If[row3(3)==row3(4),Execute[{"SetValue(row3,3,row3(3)+row3(4))","SetValue(row3,4,0)"}]]

If[row4(1)==row4(2),Execute[{"SetValue(row4,1,row4(1)+row4(2))","SetValue(row4,2,0)"}]]
If[row4(2)==row4(3),Execute[{"SetValue(row4,2,row4(2)+row4(3))","SetValue(row4,3,0)"}]]
If[row4(3)==row4(4),Execute[{"SetValue(row4,3,row4(3)+row4(4))","SetValue(row4,4,0)"}]]

row1=CopyFreeObject(Join[KeepIf[x!=0,row1],KeepIf[x==0,row1]])
row2=CopyFreeObject(Join[KeepIf[x!=0,row2],KeepIf[x==0,row2]])
row3=CopyFreeObject(Join[KeepIf[x!=0,row3],KeepIf[x==0,row3]])
row4=CopyFreeObject(Join[KeepIf[x!=0,row4],KeepIf[x==0,row4]])

If[board!=boardLeft,Execute({exeRow})]
If[board!=boardLeft,Execute[{"SetValue(board,boardLeft)"}]]

SelectObjects( )"/>
<font serif="false" sizeM="8" size="112" style="0"/>
<file name="geogebra/gui/images/go-previous.png"/>
<dimensions width="150" height="800" />
<startPoint x="-6.7" y="7.3" z="1"/>
</element>
<command name="Transpose">
<input a0="{col1, col2, col3, col4}"/>
<output a0="boardUp"/>
</command>
<element type="list" label="boardUp">
<objColor r="0" g="100" b="0" alpha="0.10000000149011612"/>
<lineStyle thickness="5" type="0" typeHidden="1"/>
<pointSize val="5"/>
<pointStyle val="0"/>
<angleStyle val="0"/>
</element>
<command name="Transpose">
<input a0="{Reverse[col1], Reverse[col2], Reverse[col3], Reverse[col4]}"/>
<output a0="boardDown"/>
</command>
<element type="list" label="boardDown">
<objColor r="0" g="100" b="0" alpha="0.10000000149011612"/>
<lineStyle thickness="5" type="0" typeHidden="1"/>
<pointSize val="5"/>
<pointStyle val="0"/>
<angleStyle val="0"/>
</element>
<expression label="boardLeft" exp="{row1, row2, row3, row4}" />
<element type="list" label="boardLeft">
<objColor r="0" g="100" b="0" alpha="0.10000000149011612"/>
<lineStyle thickness="5" type="0" typeHidden="1"/>
<pointSize val="5"/>
<pointStyle val="0"/>
<angleStyle val="0"/>
</element>
<expression label="boardRight" exp="{Reverse[row1], Reverse[row2], Reverse[row3], Reverse[row4]}" />
<element type="list" label="boardRight">
<objColor r="0" g="100" b="0" alpha="0.10000000149011612"/>
<lineStyle thickness="5" type="0" typeHidden="1"/>
<pointSize val="5"/>
<pointStyle val="0"/>
<angleStyle val="0"/>
</element>
<expression label="score" exp="(CountIf[x ≟ 4, Flatten[board]] * 4) + ((CountIf[x ≟ 8, Flatten[board]] * 8) * 2) + ((CountIf[x ≟ 16, Flatten[board]] * 16) * 3) + ((CountIf[x ≟ 32, Flatten[board]] * 32) * 4) + ((CountIf[x ≟ 64, Flatten[board]] * 64) * 5) + ((CountIf[x ≟ 128, Flatten[board]] * 128) * 6) + ((CountIf[x ≟ 256, Flatten[board]] * 256) * 7) + ((CountIf[x ≟ 512, Flatten[board]] * 512) * 8) + ((CountIf[x ≟ 1024, Flatten[board]] * 1024) * 9) + ((CountIf[x ≟ 2048, Flatten[board]] * 2048) * 10) + ((CountIf[x ≟ 4096, Flatten[board]] * 4096) * 11) + ((CountIf[x ≟ 8192, Flatten[board]] * 8192) * 12)" />
<element type="numeric" label="score">
<value val="0"/>
<objColor r="0" g="0" b="0" alpha="0.10000000149011612"/>
</element>
<command name="LaTeX">
<input a0="score" a1="true" a2="true"/>
<output a0="textScore"/>
</command>
<element type="text" label="textScore">
<show object="true" label="false" ev="11"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<isLaTeX val="true"/>
<font serif="false" sizeM="3" size="32" style="1"/>
<startPoint x="-7.100000000000006" y="0.28000000000000536" z="1"/>
</element>
<command name="RandomDiscrete">
<input a0="{1, 2, 3, 4}" a1="{CountIf[x ≟ 0, col1], CountIf[x ≟ 0, col2], CountIf[x ≟ 0, col3], CountIf[x ≟ 0, col4]}"/>
<output a0="rCol"/>
</command>
<element type="numeric" label="rCol">
<value val="1"/>
<objColor r="0" g="0" b="0" alpha="0.10000000149011612"/>
</element>
<command name="RandomDiscrete">
<input a0="{1, 2, 3, 4}" a1="{CountIf[x ≟ 0, row1], CountIf[x ≟ 0, row2], CountIf[x ≟ 0, row3], CountIf[x ≟ 0, row4]}"/>
<output a0="rRow"/>
</command>
<element type="numeric" label="rRow">
<value val="2"/>
<objColor r="0" g="0" b="0" alpha="0.10000000149011612"/>
</element>
<command name="Sequence">
<input a0="Sequence[Polygon[{(m, n), (m + 2, n), (m + 2, n + 2), (m, n + 2)}], n, -4, 2, 2]" a1="m" a2="-4" a3="2" a4="2"/>
<output a0="polyGrid"/>
</command>
<element type="list" label="polyGrid">
<show object="true" label="false" ev="4"/>
<objColor r="0" g="0" b="0" alpha="0.10000000149011612"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<selectionAllowed val="false"/>
<lineStyle thickness="5" type="0" typeHidden="1"/>
<pointSize val="5"/>
<pointStyle val="0"/>
<angleStyle val="0"/>
</element>
<expression label="text11" exp=""" + (board(1, 1)) + """ />
<element type="text" label="text11">
<show object="true" label="false" ev="8"/>
<condition showObject="board(1, 1) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="-3.5" y="2.8" z="1"/>
</element>
<expression label="text12" exp=""" + (board(1, 2)) + """ />
<element type="text" label="text12">
<show object="true" label="false" ev="40"/>
<condition showObject="board(1, 2) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="-1.5" y="2.8" z="1"/>
</element>
<expression label="text13" exp=""" + (board(1, 3)) + """ />
<element type="text" label="text13">
<show object="true" label="false" ev="40"/>
<condition showObject="board(1, 3) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="0.5" y="2.8" z="1"/>
</element>
<expression label="text14" exp=""" + (board(1, 4)) + """ />
<element type="text" label="text14">
<show object="true" label="false" ev="40"/>
<condition showObject="board(1, 4) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="2.5" y="2.8" z="1"/>
</element>
<expression label="text21" exp=""" + (board(2, 1)) + """ />
<element type="text" label="text21">
<show object="true" label="false" ev="40"/>
<condition showObject="board(2, 1) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="-3.5" y="0.8" z="1"/>
</element>
<expression label="text22" exp=""" + (board(2, 2)) + """ />
<element type="text" label="text22">
<show object="true" label="false" ev="40"/>
<condition showObject="board(2, 2) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="-1.5" y="0.8" z="1"/>
</element>
<expression label="text23" exp=""" + (board(2, 3)) + """ />
<element type="text" label="text23">
<show object="true" label="false" ev="40"/>
<condition showObject="board(2, 3) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="0.5" y="0.8" z="1"/>
</element>
<expression label="text24" exp=""" + (board(2, 4)) + """ />
<element type="text" label="text24">
<show object="true" label="false" ev="40"/>
<condition showObject="board(2, 4) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="2.5" y="0.8" z="1"/>
</element>
<expression label="text31" exp=""" + (board(3, 1)) + """ />
<element type="text" label="text31">
<show object="true" label="false" ev="40"/>
<condition showObject="board(3, 1) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="-3.5" y="-1.2" z="1"/>
</element>
<expression label="text32" exp=""" + (board(3, 2)) + """ />
<element type="text" label="text32">
<show object="true" label="false" ev="40"/>
<condition showObject="board(3, 2) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="-1.5" y="-1.2" z="1"/>
</element>
<expression label="text33" exp=""" + (board(3, 3)) + """ />
<element type="text" label="text33">
<show object="true" label="false" ev="40"/>
<condition showObject="board(3, 3) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="0.5" y="-1.2" z="1"/>
</element>
<expression label="text34" exp=""" + (board(3, 4)) + """ />
<element type="text" label="text34">
<show object="true" label="false" ev="40"/>
<condition showObject="board(3, 4) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="2.5" y="-1.2" z="1"/>
</element>
<expression label="text41" exp=""" + (board(4, 1)) + """ />
<element type="text" label="text41">
<show object="true" label="false" ev="8"/>
<condition showObject="board(4, 1) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="-3.5" y="-3.2" z="1"/>
</element>
<expression label="text42" exp=""" + (board(4, 2)) + """ />
<element type="text" label="text42">
<show object="true" label="false" ev="40"/>
<condition showObject="board(4, 2) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="-1.5" y="-3.2" z="1"/>
</element>
<expression label="text43" exp=""" + (board(4, 3)) + """ />
<element type="text" label="text43">
<show object="true" label="false" ev="40"/>
<condition showObject="board(4, 3) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="0.5" y="-3.2" z="1"/>
</element>
<expression label="text44" exp=""" + (board(4, 4)) + """ />
<element type="text" label="text44">
<show object="true" label="false" ev="40"/>
<condition showObject="board(4, 4) ≠ 0"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<tooltipMode val="2"/>
<fixed val="true"/>
<selectionAllowed val="false"/>
<font serif="false" sizeM="2" size="16" style="0"/>
<startPoint x="2.5" y="-3.2" z="1"/>
</element>
<element type="numeric" label="difficulty">
<value val="2"/>
<show object="true" label="true" ev="3"/>
<objColor r="0" g="0" b="0" alpha="0.10000000149011612"/>
<layer val="5"/>
<labelOffset x="-80" y="2"/>
<labelMode val="3"/>
<slider min="1" max="3" absoluteScreenLocation="true" width="60" x="460" y="98" fixed="false" horizontal="false" showAlgebra="true"/>
<pointSize val="10"/>
<lineStyle thickness="20" type="0" typeHidden="1"/>
<animation step="1" speed="1" type="0" playing="false"/>
<ggbscript onUpdate="SetCaption(difficulty,If[difficulty==1,"Easy",difficulty==2,"Medium",difficulty==3,"Hard"])
SetValue[di,If[difficulty==1,0,difficulty==2,0.25,difficulty==3,0.5]]"/>
<caption val="Medium"/>
</element>
<element type="numeric" label="di">
<value val="0.25"/>
<show object="false" label="true" ev="3"/>
<objColor r="0" g="0" b="0" alpha="0.10000000149011612"/>
<layer val="5"/>
<labelMode val="1"/>
<animation speed="1" type="0" playing="false"/>
</element>
<expression label="exeCol" exp=""SetValue(col" + rCol + ",5-Random(1,CountIf(x==0,col" + rCol + ")),RandomDiscrete({2,4},{1-" + di + "," + di + "}))"" />
<element type="text" label="exeCol">
<show object="false" label="false" ev="8"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<startPoint x="-0.04999999999999982" y="-0.1409090909090911" z="1"/>
</element>
<expression label="exeRow" exp=""SetValue(row" + rRow + " ,5-Random(1,CountIf(x==0,row" + rRow + " )),RandomDiscrete({2,4},{1-" + di + "," + di + "}))"" />
<element type="text" label="exeRow">
<show object="false" label="false" ev="8"/>
<objColor r="0" g="0" b="0" alpha="0"/>
<layer val="5"/>
<labelMode val="0"/>
<startPoint x="-0.04999999999999982" y="-0.1045454545454545" z="1"/>
</element>
</construction>
</geogebra>