VPATH=../../sources/vector

SVGS=$(shell find $(VPATH) -name "*.svg")
PNGS=$(patsubst $(VPATH)/%.svg, %.png, $(SVGS))
ROACH=$(filter roach/%, $(PNGS))

ROACH_32=$(patsubst roach/%, roach_32/%, $(ROACH))
ROACH_21=$(patsubst roach/%, roach_21/%, $(ROACH))
ROACH_QUARTET=$(patsubst roach/%, roach_quartet/%, $(ROACH))
ROACH_NONET=$(patsubst roach/%, roach_nonet/%, $(ROACH))

all: $(PNGS) $(ROACH_32) $(ROACH_21) $(ROACH_QUARTET) $(ROACH_NONET)

# Default rule

%.png: %.svg
	@mkdir -p `dirname $@`
	@inkscape -z -e $@ -w 64 -h 64 $<

# Smaller roaches

roach_32/%.png: roach/%.svg
	@mkdir -p `dirname $@`
	@inkscape -z -e $@ -w 32 -h 32 $<

roach_21/%.png: roach/%.svg
	@mkdir -p `dirname $@`
	@inkscape -z -e $@ -w 21 -h 21 $<

# Roach quartet

roach_quartet/roach_%.png: roach_32/roach_*.png
	@mkdir -p roach_quartet
	@montage $(foreach i, -1 0 1 2 , roach_32/roach_$$(( ( $(i) + $(patsubst roach_quartet/roach_%.png,%, $@) ) % 4 + 1 )).png) -geometry +0+0 -background none $@

roach_quartet/eyes_%.png: roach_32/eyes_*.png
	@mkdir -p roach_quartet
	@montage $(foreach i, -1 0 1 2 , roach_32/eyes_$$(( ( $(i) + $(patsubst roach_quartet/eyes_%.png,%, $@) ) % 4 + 1 )).png) -geometry +0+0 -background none $@

# Roach nonet

roach_nonet/roach_%.png: roach_21/roach_*.png
	@mkdir -p roach_nonet
	@montage $(foreach i, -1 0 1 2 3 4 5 6 7 , roach_21/roach_$$(( ( $(i) + $(patsubst roach_nonet/roach_%.png,%, $@) ) % 4 + 1 )).png) -geometry +0+0 -background none - | convert - -background none -gravity southeast -splice 1x1 $@

roach_nonet/eyes_%.png: roach_21/eyes_*.png
	@mkdir -p roach_nonet
	@montage $(foreach i, -1 0 1 2 3 4 5 6 7 , roach_21/eyes_$$(( ( $(i) + $(patsubst roach_nonet/eyes_%.png,%, $@) ) % 4 + 1 )).png) -geometry +0+0 -background none - | convert - -background none -gravity southeast -splice 1x1 $@