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◆ main openmsx / share / scripts / mode.tcl
3.3 KiB · Tcl · last changed chore(): initial commit 1 month ago source blame history raw
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# TODO mode descriptions are not yet used in any way
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# TODO tab completion for the mode setting, so we can remove the hardcoded mentioning of the existing modes
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namespace eval mode {
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## Mode switching infrastructure
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variable modes_info
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variable old_mode
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proc register {name enter_proc leave_proc description} {
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	variable modes_info
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	dict set modes_info $name [dict create enter_proc $enter_proc \
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	                                       leave_proc $leave_proc \
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	                                       description $description]
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}
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proc mode_changed {name1 name2 op} {
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	variable modes_info
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	variable old_mode
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	set new_mode $::mode
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	if {![dict exists $modes_info $new_mode]} {
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		# New mode doesn't exist, restore variable and give an error
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		set ::mode $old_mode
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		error "No such mode: $new_mode. Possible values are: [dict keys $modes_info]"
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	}
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	# Leave old mode
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	eval [dict get $modes_info $old_mode leave_proc]
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	# Enter new mode
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	eval [dict get $modes_info $new_mode enter_proc]
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	set old_mode $new_mode
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}
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## Define normal mode
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proc enter_normal_mode {} {}
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proc leave_normal_mode {} {}
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register "normal" [namespace code enter_normal_mode] \
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                  [namespace code leave_normal_mode] \
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         "Mode that is most general purpose."
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## Define tas mode
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variable old_inputdelay
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proc enter_tas_mode {} {
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	variable old_inputdelay
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	# in tas mode, set inputdelay to 0
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	set old_inputdelay $::inputdelay
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	set ::inputdelay 0
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	if {![osd exists framecount]} {
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		toggle_frame_counter
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	}
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	if {![osd exists lag_counter]} {
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		toggle_lag_counter
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	}
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	if {![osd exists cursors]} {
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		toggle_cursors
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	}
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	if {![osd exists movielength]} {
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		toggle_movie_length_display
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	}
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	# load/select/save reverse slot
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	# Note: this hides the MSX keys 'SELECT' and 'STOP'
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	bind_default F6 tas::load_replay_slot
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	bind_default F7 tas::open_select_slot_menu
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	bind_default F8 tas::save_replay_slot
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	# Set up frame advance/reverse
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	bind_default END -repeat next_frame
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	bind_default SCROLLLOCK -repeat prev_frame
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}
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proc leave_tas_mode {} {
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	variable old_inputdelay
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	# restore inputdelay
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	set ::inputdelay $old_inputdelay
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	if {[osd exists framecount]} {
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		toggle_frame_counter
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	}
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	if {[osd exists lag_counter]} {
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		toggle_lag_counter
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	}
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	if {[osd exists cursors]} {
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		toggle_cursors
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	}
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	if {[osd exists movielength]} {
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		toggle_movie_length_display
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	}
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	# Remove reverse slot stuff
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	unbind_default F6
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	unbind_default F7
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	unbind_default F8
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	# Remove frame advance/reverse
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	unbind_default END
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	unbind_default SCROLLLOCK
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}
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register "tas" [namespace code enter_tas_mode] \
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               [namespace code leave_tas_mode] \
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         "Mode for doing Tool Assisted Speedruns, with TAS widgets and easy ways to save replays."
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# Create setting (uses info from registered modes above)
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set help_text "This setting switches between different openMSX modes. A mode is a set of settings (mostly keybindings, but also OSD widgets that are activated) that are most suitable for a certain task. Currently these modes exist:"
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foreach name [lsort [dict keys $modes_info]] {
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	append help_text "\n  $name: [dict get $modes_info $name description]"
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}
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user_setting create string mode $help_text normal
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trace add variable ::mode write [namespace code mode_changed]
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## Enter initial mode
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set old_mode $::mode
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after realtime 0 {eval [dict get $mode::modes_info $::mode enter_proc]}
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}