SUBROUTINE IMPULS
      INCLUDE 'TREK.COM/-LI'
      IDIDIT=0
      IF(DAMAGE(7).NE.0) GO TO 40 
C--------READ IN COURSE AND DISTANCE
      IF(ENERGY .LE. 30.0) GO TO 5
      CALL GETCD
      IF(DIREC .LT. 0) RETURN 
C--------MAKE SURE STARSHIP HAS SUFFICIENT ENERGY FOR TRIP
      POWER=20.0+100.0*DIST 
      IF(POWER .LT. ENERGY) GO TO 20
 5    CALL SKIP(1)
      CALL PROUT( 
     +   51HFIRST OFFICER SPOCK:  "CAPTAIN, THE IMPULSE ENGINES,51)
      CALL PROUT( 
     +   51HREQUIRE 20.0 UNITS TO ENGAGE, PLUS 100.0 UNITS PER  ,51) 
      IF(ENERGY .GT. 30.0) GO TO 10 
      CALL PROUT( 
     +   41HQUADRANT.  THEY ARE, THEREFORE, USELESS.",41)
      RETURN
 10   CALL CRAM(46HQUADRANT.  WE CAN GO, THEREFORE, A MAXIMUM OF )
      CALL CRAMF(0.01*(ENERGY-20.0)-0.05,0,1) 
      CALL CREND
      CALL PROUT(11HQUADRANTS.",11)
      RETURN
C--------MAKE SURE ENOUGH TIME IS LEFT FOR THE TRIP 
 20   TIME=DIST/0.095 
      IF(TIME .LT. RMTIME) GO TO 30
      CALL PROUT( 
     +   55HFIRST OFFICER SPOCK:  "CAPTAIN, OUR SPEED UNDER IMPULSE,55)
      CALL PROUT( 
     +   54HPOWER IS ONLY 0.95 SECTORS PER STARDATE.  ARE YOU SURE,54) 
      CALL PROUT(24HWE DARE SPEND THE TIME?",24) 
      IF(JA(DUMMY)) GO TO 30
      RETURN
C--------ACTIVATE IMPULSE ENGINES AND PAY THE COST
 30   CALL MOVE 
      IDIDIT=1
      IF(ALLDON.NE.0) RETURN 
      POWER=20.0+100.0*DIST 
      ENERGY=ENERGY-POWER 
      TIME=DIST/0.095 
      IF(ENERGY .GT. 0) RETURN
      CALL FINISH(4)
      RETURN
 40   CALL SKIP(1)
      CALL PROUT(24HIMPULSE ENGINES DAMAGED.,24) 
      RETURN
      END