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# $Id$
# This file is part of OpenTTD.
# OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
# OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
#
# Building requires GRFCodec and NFORenum. Older versions of GRFCodec are
# known to miscompile the graphics.
#
# Recent nightlies (including sources) of both can be found at:
# http://www.openttd.org/download-grfcodec
# http://www.openttd.org/download-nforenum
#
# The mercurial repository of both can be found at:
# http://hg.openttdcoop.org/grfcodec
# http://hg.openttdcoop.org/nforenum
#
ROOT_DIR = !!ROOT_DIR!!
GRF_DIR = $(ROOT_DIR)/media/extra_grf
BIN_DIR = !!BIN_DIR!!/data
OBJS_DIR = !!GRF_OBJS_DIR!!
OS = !!OS!!
STAGE = !!STAGE!!
# Check if we want to show what we are doing
ifdef VERBOSE
Q =
E = @true
else
Q = @
E = @echo
endif
# Some configurational settings for your environment.
# If GRFCodec doesn't know a command, it'll exit with a non-zero exit code.
GRFCODEC := $(shell grfcodec -s -v >/dev/null 2>/dev/null && echo "grfcodec -s" || echo "grfcodec")
# Old NFORenums don't give an error code when a parameter isn't known, so we have to work around that.
NFORENUM := $(shell [ `nforenum -s -v 2>/dev/null | wc -l ` -eq 1 ] && echo "nforenum -s" || echo "nforenum")
MD5SUM := $(shell [ "$(OS)" = "OSX" ] && echo "md5 -r" || echo "md5sum")
# Some "should not be changed" settings.
NFO_FILES := $(GRF_DIR)/*.nfo
PNG_FILES := $(GRF_DIR)/*.png
# Build the GRF.
all: $(BIN_DIR)/openttd.grf
# Make sure the sprites directory exists.
$(OBJS_DIR)/sprites:
$(Q)-mkdir "$@"
# Generic
$(BIN_DIR)/openttd.grf: $(PNG_FILES) $(NFO_FILES) $(OBJS_DIR)/sprites
@# Only try; if nforenum isn't available, just retouch the file as they likely didn't need it anyway.
$(Q) ($(NFORENUM) --help > /dev/null 2>&1 && $(MAKE) $(OBJS_DIR)/openttd.grf && cp $(OBJS_DIR)/openttd.grf $(BIN_DIR)/openttd.grf) || ([ -e $(BIN_DIR)/openttd.grf ] && touch $(BIN_DIR)/openttd.grf && echo "no NFORenum and GRFCodec found, skipping rebuild of openttd.grf...") || (echo "no NFORenum and GRFCodec found, but no openttd.grf either. Install NFORenum and GRFCodec." && exit 1)
# Yeah, we'd like to use -i in the sed, but Mac OS X's sed and GNU sed just can't agree on the usage of -i. In any case either one of them fails.
$(OBJS_DIR)/openttd.grf: $(PNG_FILES) $(NFO_FILES) $(OBJS_DIR)/sprites
$(E) '$(STAGE) Assembling openttd.nfo'
$(Q)-cp $(PNG_FILES) $(OBJS_DIR)/sprites 2> /dev/null
$(Q) gcc -I$(GRF_DIR) -C -E - < "$(GRF_DIR)/openttd.nfo" | sed -e '/^#/d' -e '/^$$/d' > $(OBJS_DIR)/sprites/openttd.nfo
$(Q) $(NFORENUM) $(OBJS_DIR)/sprites/openttd.nfo
$(E) '$(STAGE) Compiling openttd.grf'
$(Q) $(GRFCODEC) -e -p1 $(OBJS_DIR)/openttd.grf
$(Q) cp $(OBJS_DIR)/openttd.grf $(BIN_DIR)/openttd.grf
$(E) '$(STAGE) Updating base graphics sets'
$(Q) for grf in $(BIN_DIR)/orig*.obg; do sed 's/^OPENTTD.GRF = [0-9a-f]*$$/OPENTTD.GRF = '`$(MD5SUM) $(BIN_DIR)/openttd.grf | sed 's@ .*@@'`'/' $$grf > $$grf.tmp && mv $$grf.tmp $$grf; done
# Clean up temporary files.
clean:
$(Q)rm -f *.bak *.grf
# Clean up temporary files
mrproper: clean
$(Q)rm -fr sprites
.PHONY: all mrproper depend clean
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