diff --git a/_/MidPoint.bas.txt b/_/MidPoint.bas.txt deleted file mode 100644 index 22ce9204..00000000 --- a/_/MidPoint.bas.txt +++ /dev/null @@ -1,60 +0,0 @@ -PR#3 -NEW -1000 GR -1010 COLOR = 12 : X1% = 3 : Y1% = 0 : X2% = 39 : Y2% = 17 -1020 GOSUB 2000 -1030 COLOR = 13 : X1% = 2 : Y1% = 1 : X2% = 39 : Y2% = 32 -1040 GOSUB 2000 -1050 COLOR = 14 : X1% = 1 : Y1% = 2 : X2% = 29 : Y2% = 39 -1060 GOSUB 2000 -1070 COLOR = 15 : X1% = 0 : Y1% = 3 : X2% = 15 : Y2% = 39 -1080 GOSUB 2000 - -1110 COLOR = 8 : X1% = 36 : Y1% = 0 : X2% = 0 : Y2% = 17 -1120 GOSUB 2000 -1130 COLOR = 9 : X1% = 37 : Y1% = 1 : X2% = 0 : Y2% = 32 -1140 GOSUB 2000 -1150 COLOR = 10 : X1% = 38 : Y1% = 2 : X2% = 26 : Y2% = 39 -1160 GOSUB 2000 -1170 COLOR = 11 : X1% = 39 : Y1% = 3 : X2% = 33 : Y2% = 39 -1180 GOSUB 2000 - -1999 END - -2000 VTAB 21 : PRINT "X1=";X1%;" Y1=";Y1%;" X2=";X2%;" Y2=";Y2% - -2010 DX% = X2% - X1% -2020 IF DX% = 0 Then VLIN Y1%,Y2% At X1% : RETURN -2030 IF DX% < 0 Then T% = X1% : X1% = X2% : X2% = T% : T% = Y1% : Y1% = Y2% : Y2% = T% : DX% = -DX% - -2040 DY% = Y2% - Y1% -2050 IF DY% = 0 Then HLIN X1%,X2% At Y1% : RETURN -2060 IF DY% < 0 Then IY% = -1 : DY% = - DY% : GOTO 2100 -2070 IY% = 1 - -2100 PLOT X1%,Y1% - -2110 IF DX% > DY% GOTO 3000 -2120 IF DX% < DY% GOTO 4000 - -2200 IF X1% = X2% THEN RETURN -2210 X1% = X1% + 1 -2220 Y1% = Y1% + IY% -2230 PLOT X1%,Y1% -2240 GOTO 2200 - -3000 IE% = 2 * DY% : D% = IE% - DX% : INE% = 2 * (DY% - DX%) -3010 IF X1% = X2% THEN RETURN -3020 IF D% > 0 THEN D% = D% + INE% : Y1% = Y1% + IY% : GOTO 3040 -3030 D% = D% + IE% -3040 X1% = X1% + 1 -3050 PLOT X1%,Y1% -3060 GOTO 3010 - -4000 IE% = 2 * DX% : D% = IE% - DY% : INE% = 2 * (DX% - DY%) -4010 IF Y1% = Y2% THEN RETURN -4020 IF D% > 0 THEN D% = D% + INE% : X1% = X1% + 1 : GOTO 4040 -4030 D% = D% + IE% -4040 Y1% = Y1% + IY% -4050 PLOT X1%,Y1% -4060 GOTO 4010