VPATH=../../sources

# Vector tiles

TILE_DIRS=roach serum vehicle_tiles fixtures weapons rat
TILE_SVGS=$(shell find $(patsubst %, $(VPATH)/vector/%, $(TILE_DIRS)) -name "*.svg")
TILE_PNGS=$(patsubst $(VPATH)/vector/%.svg, %.png, $(TILE_SVGS))

# Bitmap tiles

BTILE_DIRS=wall floor tunnel underground grate
BTILE_SRC=$(shell find $(patsubst %, $(VPATH)/bitmap/%, $(BTILE_DIRS)) -name "*.png")
BTILE_PNGS=$(patsubst $(VPATH)/bitmap/%, bunker/%, $(BTILE_SRC))

# Vector images to rasterize without resizing

SIMPLE_DIRS=roach_management vehicles splash
SIMPLE_SVGS=$(shell find $(patsubst %, $(VPATH)/vector/%, $(SIMPLE_DIRS)) -name "*.svg")
SIMPLE_PNGS=$(patsubst $(VPATH)/vector/%.svg, %.png, $(SIMPLE_SVGS))

# Aggregate cockroach sprites

ROACH=$(filter roach/%, $(TILE_PNGS))
ROACH_32=$(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/%, $(ROACH))
ROACH_BIG=$(patsubst roach/%, roach_big/%, $(ROACH))

# Aggregate serum sprites

SERUM=$(filter serum/%, $(TILE_PNGS))
SERUM_BIG=$(patsubst serum/%, serum_big/%, $(SERUM))

# Big vehicles

VEHICLE=$(filter vehicle_tiles/%_1.png, $(TILE_PNGS))
VEHICLE_BIG=$(patsubst vehicle_tiles/%, vehicle_big/%, $(VEHICLE))

# Default target with everything

all: $(TILE_PNGS) $(BTILE_PNGS) $(SIMPLE_PNGS)\
	$(ROACH_32) $(ROACH_21) $(ROACH_QUARTET) $(ROACH_NONET) $(ROACH_BIG)\
	$(SERUM_BIG) $(VEHICLE_BIG)

# Vector tile rule

define tile
$(1)/%.png: vector/$(1)/%.svg
	@mkdir -p `dirname $$@`
	@inkscape -z -e $$@ -w 64 -h 64 $$<
endef

$(foreach tiledir,$(TILE_DIRS),$(eval $(call tile,$(tiledir))))

# No resize rule

define simple
$(1)/%.png: vector/$(1)/%.svg
	@mkdir -p `dirname $$@`
	@inkscape -z -e $$@ $$<
endef

$(foreach simpledir,$(SIMPLE_DIRS),$(eval $(call simple,$(simpledir))))

# Bitmap tile rule

define btile
bunker/$(1)/%.png: bitmap/$(1)/%.png
	@mkdir -p `dirname $$@`
	@convert $$< -resize 64x64 $$@
endef

$(foreach tiledir,$(BTILE_DIRS),$(eval $(call btile,$(tiledir))))

# Smaller roaches

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

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

# Big roaches

roach_big/%.png: vector/roach/%.svg
	@mkdir -p `dirname $@`
	@inkscape -z -e $@ -w 192 -h 192 $<

# Big serums

serum_big/%.png: vector/serum/%.svg
	@mkdir -p `dirname $@`
	@inkscape -z -e $@ -w 192 -h 192 $<

# Big vehicles

vehicle_big/%_1.png: vector/vehicle_tiles/%_1.svg
	@mkdir -p `dirname $@`
	@inkscape -z -e $@ -w 576 -h 576 $<

# Roach quartet

roach_quartet/roach_%.png: $(foreach i, 1 2 3 4, roach_32/roach_$(i).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: $(foreach i, 1 2 3 4, roach_32/eyes_$(i).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: $(foreach i, 1 2 3 4, roach_21/roach_$(i).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: $(foreach i, 1 2 3 4, roach_21/eyes_$(i).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 $@