54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
CDC *dc;
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U0 DrawIt(CTask *,CDC *)
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{//This technique is weird, but clever. In Box() we
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//created an alias of the system $LK,"gr.dc2",A="MN:CGrGlbls"$.
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dc->pen_width=2;
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dc->color=RED;
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GrLine3(dc,-100,-100,-100, -100, 100,-100);
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GrLine3(dc,-100, 100,-100, 100, 100,-100);
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GrLine3(dc, 100, 100,-100, 100,-100,-100);
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GrLine3(dc, 100,-100,-100, -100,-100,-100);
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GrLine3(dc,-100,-100, 100, -100, 100, 100);
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GrLine3(dc,-100, 100, 100, 100, 100, 100);
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GrLine3(dc, 100, 100, 100, 100,-100, 100);
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GrLine3(dc, 100,-100, 100, -100,-100, 100);
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GrLine3(dc,-100,-100, 100, -100,-100,-100);
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GrLine3(dc,-100, 100, 100, -100, 100,-100);
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GrLine3(dc, 100, 100, 100, 100, 100,-100);
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GrLine3(dc, 100,-100, 100, 100,-100,-100);
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}
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U0 Box()
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{
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F64 é=0,è=0,ê=0,s=1,s1=1.05;
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dc=DCAlias(gr.dc2,Fs);
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SettingsPush; //See $LK,"SettingsPush",A="MN:SettingsPush"$
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DocClear;
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Fs->draw_it=&DrawIt;
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dc->x=200;
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dc->y=200;
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dc->flags|=DCF_TRANSFORMATION;
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while (!ScanChar) {
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Mat4x4IdentEqu(dc->r);
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Mat4x4RotZ(dc->r,é);
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Mat4x4RotX(dc->r,è);
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Mat4x4RotZ(dc->r,ê);
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Mat4x4Scale(dc->r,s);
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DCMat4x4Set(dc,dc->r);
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Sleep(20);
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é+=2*ã/70;
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è+=2*ã/90;
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ê+=2*ã/110;
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s*=s1;
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if ( !(0.2<s<1.4) ) s1=1/s1;
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}
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SettingsPop;
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DCDel(dc);
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}
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Box;
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