# Makefile to process POV-Ray lab hand-in files - ANIMATIONS
# Last edited on 2019-04-17 03:51:52 by stolfilocal

######################################################################
# Creates a strip of still images.
# Caller must define ${NAME}, ${TAG}, ${WIDTH}, ${HEIGHT}.
# The root source file will be ${NAME}.pov.
# The output strip image will be ${NAME}-${TAG}.png.
#
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"

STRIPNAME := ${NAME}-${TAG}
STRIPPNG := ${STRIPNAME}.png

POVFILE := ${NAME}.pov

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

STRIPRAYS := 1

STRIPCLOCKS := \
    0.0000 0.0714 0.1429 0.2143 0.2857 \
    0.3571 0.4286 0.5000 0.5714 0.6429 \
    0.7143 0.7857 0.8571 0.9286 1.0000
    
STRIPFRAMES := ${addprefix ${STRIPNAME}-,${addsuffix .png,${STRIPCLOCKS}}}


all: ${STRIPPNG}

${STRIPPNG}: ${POVFILE} ${OTHERINPUTS}
	-/bin/rm -f ${STRIPPNG} 
	for clock in ${STRIPCLOCKS} ; do \
          ${MAKE} -f FRAME.make \
            NAME=${NAME} TAG=${TAG} \
            WIDTH=${WIDTH} HEIGHT=${HEIGHT} NRAYS=${STRIPRAYS} \
            CLOCK=$$clock SHOW=NO \
            all; \
        done
	./tile-movie-frames.sh \
          -ncols 5 \
          ${STRIPPNG} \
          ${STRIPFRAMES}
	if [[ -s ${STRIPPNG} ]]; then ${IMVIEW} ${STRIPPNG} ; fi

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