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organize all available statetype variables in a states[] array #17

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merged 8 commits into from
Jul 13, 2020
Merged

organize all available statetype variables in a states[] array #17

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0e761a4
organize all available statetype variables in a states[] array
fabiangreffrath Jul 6, 2020
5492749
add the files containing the states[] array
fabiangreffrath Jul 6, 2020
e4a1610
simplify pointer arithmetics in SaveTheGame()/LoadTheGame()
fabiangreffrath Jul 7, 2020
335569b
display a message and quit the game when an invalid savegame is loaded
fabiangreffrath Jul 8, 2020
af8d05b
back to main menu on failure instead of quitting
fabiangreffrath Jul 10, 2020
4d836b0
add copyright headers to newly added files
fabiangreffrath Jul 10, 2020
56f634a
prevent crashes for subsequent games when loading invalid savegame
fabiangreffrath Jul 13, 2020
39d4fde
add some minimalistic comments
fabiangreffrath Jul 13, 2020
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14 changes: 1 addition & 13 deletions Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -26,19 +26,6 @@ CFLAGS += -Wreturn-type
CFLAGS += -Wwrite-strings
CFLAGS += -Wcast-align

# In contrast to Doom, which has all its possible game states
# enumerated and stored in a single huge info.c:states[] array, the
# Wolf3d engine has them as global variables in wl_act2.cpp. The
# savegame code relies on the order of these variables remaining
# constant in the executable and the difference of these variables'
# addresses relative to a certain reference as well. This should be a
# valid assumption for a given executable, but might change when the
# code is compiled again - turning the savegames saved wit the prior
# compilate useless. This compiler flag prevents the reordering of the
# global variables and thus keeps savegames functional across engine
# rebuilds.
CFLAGS += -fno-toplevel-reorder


CCFLAGS += $(CFLAGS)
CCFLAGS += -std=gnu99
Expand Down Expand Up @@ -79,6 +66,7 @@ SRCS += wl_parallax.cpp
SRCS += wl_play.cpp
SRCS += wl_state.cpp
SRCS += wl_text.cpp
SRCS += states.cpp

DEPS = $(filter %.d, $(SRCS:.c=.d) $(SRCS:.cpp=.d))
OBJS = $(filter %.o, $(SRCS:.c=.o) $(SRCS:.cpp=.o))
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492 changes: 492 additions & 0 deletions states.cpp
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