# Last edited on 2019-04-17 03:51:11 by stolfilocal

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# Creates a animation ".gif" file.
# Caller must define ${NAME}, ${TAG}, ${WIDTH}, ${HEIGHT}.
# The ${TAG} should be "f" for fast movie, "m" for full one.
# The root source file will be ${NAME}.pov.
# The output frame image files will be ${NAME}-${TAG}-${CLOCK}.png.
# The animated gif will be ${NAME}-${TAG}.gif
#
NAME := NAME.IS.UNDEFINED
ifneq "${NAME}" "NAME.IS.UNDEFINED"
TAG := TAG.IS.UNDEFINED
ifneq "${TAG}" "TAG.IS.UNDEFINED"
 WIDTH := WIDTH.IS.UNDEFINED
ifneq "${WIDTH}" "WIDTH.IS.UNDEFINED"
HEIGHT := HEIGHT.IS.UNDEFINED
ifneq "${HEIGHT}" "HEIGHT.IS.UNDEFINED"

MOVIENAME := ${NAME}-${TAG}
MOVIEGIF := ${MOVIENAME}.gif

POVFILE := ${NAME}.pov

OTHERINPUTS := ${filter-out ${NAME}-%, ${wildcard *.inc pic-*.png }}

# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Always make the middle still frame before making a movie:

CHECKCLOCK := 0.5000
CHECKTAG := c
CHECKPNG := ${NAME}-${CHECKTAG}-${CHECKCLOCK}.png
CHECKWIDTH := ${WIDTH}
CHECKHEIGHT := ${HEIGHT}

${CHECKPNG}:
	${MAKE} -f FRAME.make \
          NAME=${NAME} TAG=${CHECKTAG} \
          WIDTH=${CHECKWIDTH} HEIGHT=${CHECKHEIGHT} NRAYS=2 \
          CLOCK=${CHECKCLOCK} SHOW=YES \
          all

# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Movie proper:

ifeq "/${TAG}" "/f" 
  MOVIERAYS := 1

  # Parameters for 24 frames, high-speed
  MOVIEDELAY := 15
  MOVIECLOCKS := \
    0.0000 0.0417 0.0833 0.1250 0.1667 \
    0.2083 0.2500 0.2917 0.3333 0.3750 \
    0.4167 0.4583 0.5000 0.5417 0.5833 \
    0.6250 0.6667 0.7083 0.7500 0.7917 \
    0.8333 0.8750 0.9167 0.9583
endif

ifeq "/${TAG}" "/m"
  MOVIERAYS := 2

  # Parameters for 25 frames:
  # MOVIEDELAY := 10
  # MOVIECLOCKS := \
  #   0.0000 0.0400 0.0800 0.1200 0.1600 \
  #   0.2000 0.2400 0.2800 0.3200 0.3600 \
  #   0.4000 0.4400 0.4800 0.5200 0.5600 \
  #   0.6000 0.6400 0.6800 0.7200 0.7600 \
  #   0.8000 0.8400 0.8800 0.9200 0.9600

  # Parameters for 50 frames:
  MOVIEDELAY := 7
  MOVIECLOCKS := \
    0.0000 0.0200 0.0400 0.0600 0.0800 \
    0.1000 0.1200 0.1400 0.1600 0.1800 \
    0.2000 0.2200 0.2400 0.2600 0.2800 \
    0.3000 0.3200 0.3400 0.3600 0.3800 \
    0.4000 0.4200 0.4400 0.4600 0.4800 \
    0.5000 0.5200 0.5400 0.5600 0.5800 \
    0.6000 0.6200 0.6400 0.6600 0.6800 \
    0.7000 0.7200 0.7400 0.7600 0.7800 \
    0.8000 0.8200 0.8400 0.8600 0.8800 \
    0.9000 0.9200 0.9400 0.9600 0.9800

  # Parameters for 80 frames:
  # MOVIEDELAY := 6
  # MOVIECLOCKS := \
  #   0.0000 0.0125 0.0250 0.0375 0.0500 0.0625 0.0750 0.0875 \
  #   0.1000 0.1125 0.1250 0.1375 0.1500 0.1625 0.1750 0.1875 \
  #   0.2000 0.2125 0.2250 0.2375 0.2500 0.2625 0.2750 0.2875 \
  #   0.3000 0.3125 0.3250 0.3375 0.3500 0.3625 0.3750 0.3875 \
  #   0.4000 0.4125 0.4250 0.4375 0.4500 0.4625 0.4750 0.4875 \
  #   0.5000 0.5125 0.5250 0.5375 0.5500 0.5625 0.5750 0.5875 \
  #   0.6000 0.6125 0.6250 0.6375 0.6500 0.6625 0.6750 0.6875 \
  #   0.7000 0.7125 0.7250 0.7375 0.7500 0.7625 0.7750 0.7875 \
  #   0.8000 0.8125 0.8250 0.8375 0.8500 0.8625 0.8750 0.8875 \
  #   0.9000 0.9125 0.9250 0.9375 0.9500 0.9625 0.9750 0.9875

  # Parameters for 100 frames:
  # MOVIEDELAY := 3
  # MOVIECLOCKS := \
  #   0.0000 0.0100 0.0200 0.0300 0.0400 0.0500 0.0600 0.0700 0.0800 0.0900 \
  #   0.1000 0.1100 0.1200 0.1300 0.1400 0.1500 0.1600 0.1700 0.1800 0.1900 \
  #   0.2000 0.2100 0.2200 0.2300 0.2400 0.2500 0.2600 0.2700 0.2800 0.2900 \
  #   0.3000 0.3100 0.3200 0.3300 0.3400 0.3500 0.3600 0.3700 0.3800 0.3900 \
  #   0.4000 0.4100 0.4200 0.4300 0.4400 0.4500 0.4600 0.4700 0.4800 0.4900 \
  #   0.5000 0.5100 0.5200 0.5300 0.5400 0.5500 0.5600 0.5700 0.5800 0.5900 \
  #   0.6000 0.6100 0.6200 0.6300 0.6400 0.6500 0.6600 0.6700 0.6800 0.6900 \
  #   0.7000 0.7100 0.7200 0.7300 0.7400 0.7500 0.7600 0.7700 0.7800 0.7900 \
  #   0.8000 0.8100 0.8200 0.8300 0.8400 0.8500 0.8600 0.8700 0.8800 0.8900 \
  #   0.9000 0.9100 0.9200 0.9300 0.9400 0.9500 0.9600 0.9700 0.9800 0.9900
endif

MOVIEFRAMES := ${addprefix ${MOVIENAME}-,${addsuffix .png, ${MOVIECLOCKS}}}

all: ${CHECKPNG} ${MOVIEGIF}

${MOVIEGIF}: ${POVFILE} ${OTHERINPUTS}
	-/bin/rm -f ${MOVIEGIF}
	for clock in ${MOVIECLOCKS} ; do \
          ${MAKE} -f FRAME.make \
            NAME=${NAME} TAG=${TAG} \
            WIDTH=${WIDTH} HEIGHT=${HEIGHT} NRAYS=${MOVIERAYS} \
            CLOCK=$$clock SHOW=NO \
            all; \
        done
	./animate-movie-frames.sh \
          -delay ${MOVIEDELAY} \
          ${MOVIEGIF} \
          ${MOVIEFRAMES}
	@-echo "----------------------------------------------------------------------"
	@-echo "To watch the movie, open ${MOVIEGIF} with a browser."
	@-echo "----------------------------------------------------------------------"

endif # ${HEIGHT}
endif # ${WIDTH}
endif # ${TAG}
endif # ${NAME} 
# End 
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