80 lines
1001 B
C++
80 lines
1001 B
C++
/*
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* $Header: /HexenWorld/HCode/math.hc 1 2/04/98 1:59p Rjohnson $
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*/
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/*
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* crandom() -- Returns a random number between -1 and 1.
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*/
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float crandom()
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{
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return random(-1,1);
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}
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float fexp(float base,float exponent)
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{//MG
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float exp_count;
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exponent=rint(exponent);
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if(exponent==0)
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return 1;
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if(exponent<0)
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{
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base=1/base;
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exponent=fabs(exponent);
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}
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if(exponent==1)
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return base;
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exponent-=1;
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while(exp_count<exponent)
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{
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exp_count+=1;
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base=base*base;
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}
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return base;
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}
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float byte_me(float mult)
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{//MG
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float mult_count,base;
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mult=rint(mult);
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if(mult==0)
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return 0;
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if(mult==1)
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return 1;
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if(mult==-1)
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return -1;
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if(mult<0)
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{
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base= -1;
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mult=fabs(mult);
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}
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else
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base=1;
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mult-=1;
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while(mult_count<mult)
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{
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mult_count+=1;
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base=base*2;
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}
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return base;
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}
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vector RandomVector (vector vrange)
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{
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vector newvec;
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newvec_x=random(vrange_x,0-vrange_x);
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newvec_y=random(vrange_y,0-vrange_y);
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newvec_z=random(vrange_z,0-vrange_z);
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return newvec;
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}
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