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authorest31 <MTest31@outlook.com>2015-07-31 05:52:34 +0200
committerest31 <MTest31@outlook.com>2015-07-31 10:12:20 +0200
commite29b61ecd4e8fb3cd4f84cff0e830b49993cbf50 (patch)
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parent7217fd32eb8af01d3012a2ed883598c6a9fbf78e (diff)
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Android: speed up rebuild, and prevent race condition fail
Speeding up rebuild: Before, we've written the android_version.h file at every rebuild. As it thought the file's content has changed, make has rebuilt files in the source tree that depended on that header file during rebuild, causing lots of files being rebuilt without there being a reason. The reasoning of make can be observed by passing -d and V=1 params to the ndk-build command. You then got logging entries like: Prerequisite `jni/src/android_version.h' is newer than target `obj/local/armeabi-v7a-hard/objs-debug/minetest/jni/src/areastore.o'. Preventing race condition build fail: Before, there was a race condition, where, if the prep_srcdir target was executed in parallel with the $(ROOT)/jni/src/android_version.h one, it could happen that the jni/src directory was nonexistent, and we were trying to write into a file inside. This resulted in a build failue: /bin/sh: 1: cannot create [...]/jni/src/android_version.h: Directory nonexistent Additionally, we now don't remove the link to src/ needlessly anymore. Keeping this wouldn't have affected the rebuild, but this way its more proper.
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generated by cgit v1.2.3 (git 2.25.1) at 2024-07-07 23:02:40 +0000
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--trackplacer.lua
--holds code for the track-placing system. the default 'track' item will be a craftitem that places rails as needed. this will neither place or change switches nor place vertical rails.

--keys:conn1_conn2 (example:1_4)
--values:{name=x, param2=x}
advtrains.trackplacer_dir_to_node_mapping={}
--keys are nodenames!
advtrains.trackplacer_modified_rails={}

function advtrains.trackplacer_register(nodename, conn1, conn2)
	for i=0,3 do
		advtrains.trackplacer_dir_to_node_mapping[((conn1+2*i)%8).."_"..((conn2+2*i)%8)]={name=nodename, param2=i}
		advtrains.trackplacer_dir_to_node_mapping[((conn2+2*i)%8).."_"..((conn1+2*i)%8)]={name=nodename, param2=i}
	end
	advtrains.trackplacer_modified_rails[nodename]=true
end
function advtrains.find_adjacent_tracks(pos)--TODO vertical calculations(check node below)
	local conn1=0
	while conn1<8 and not advtrains.is_track_and_drives_on(minetest.get_node(advtrains.dirCoordSet(pos, conn1)).name, advtrains.all_tracktypes) do
		conn1=conn1+1
	end
	if conn1>=8 then
		return nil, nil
	end
	local conn2=0
	while conn2<8 and not advtrains.is_track_and_drives_on(minetest.get_node(advtrains.dirCoordSet(pos, conn2)).name, advtrains.all_tracktypes) or conn2==conn1 do
		conn2=conn2+1
	end
	if conn2>=8 then
		return conn1, nil
	end
	return conn1, conn2
end
function advtrains.placetrack(pos)
	local conn1, conn2=advtrains.find_adjacent_tracks(pos)
	
	if not conn1 and not conn2 then
		minetest.set_node(pos, {name="advtrains:track_st"})
	elseif conn1 and not conn2 then
		local node1=minetest.get_node(advtrains.dirCoordSet(pos, conn1))
		local node1_conn1, node1_conn2=advtrains.get_track_connections(node1.name, node1.param2)
		local node1_backconnects=(conn1+4)%8==node1_conn1 or (conn1+4)%8==node1_conn2
		
		if not node1_backconnects and advtrains.trackplacer_modified_rails[node1.name] then
			--check if this rail has a dangling connection
			--TODO possible problems on |- situation
			if not advtrains.is_track_and_drives_on(minetest.get_node(advtrains.dirCoordSet(pos, node1_conn1)).name, advtrains.all_tracktypes) then
				if advtrains.trackplacer_dir_to_node_mapping[node1_conn1.."_"..((conn1+4)%8)] then
					minetest.set_node(advtrains.dirCoordSet(pos, conn1), advtrains.trackplacer_dir_to_node_mapping[node1_conn1.."_"..((conn1+4)%8)])
				end
			elseif not advtrains.is_track_and_drives_on(minetest.get_node(advtrains.dirCoordSet(pos, node1_conn2)).name, advtrains.all_tracktypes) then
				if advtrains.trackplacer_dir_to_node_mapping[node1_conn2.."_"..((conn1+4)%8)] then
					minetest.set_node(advtrains.dirCoordSet(pos, conn1), advtrains.trackplacer_dir_to_node_mapping[node1_conn2.."_"..((conn1+4)%8)])
				end
			end
		end
		--second end will be free. place standard rail
		if conn1%2==1 then
			minetest.set_node(pos, {name="advtrains:track_st_45", param2=(conn1-1)/2})
		else
			minetest.set_node(pos, {name="advtrains:track_st", param2=conn1/2})
		end
	elseif conn1 and conn2 then
		if not advtrains.trackplacer_dir_to_node_mapping[conn1.."_"..conn2] then
			minetest.set_node(pos, {name="advtrains:track_st"})
			return
		end
		local node1=minetest.get_node(advtrains.dirCoordSet(pos, conn1))
		local node1_conn1, node1_conn2=advtrains.get_track_connections(node1.name, node1.param2)
		local node1_backconnects=(conn1+4)%8==node1_conn1 or (conn1+4)%8==node1_conn2
		if not node1_backconnects and advtrains.trackplacer_modified_rails[node1.name] then
			--check if this rail has a dangling connection
			--TODO possible problems on |- situation
			if not advtrains.is_track_and_drives_on(minetest.get_node(advtrains.dirCoordSet(pos, node1_conn1)).name, advtrains.all_tracktypes) then
				if advtrains.trackplacer_dir_to_node_mapping[node1_conn1.."_"..((conn1+4)%8)] then
					minetest.set_node(advtrains.dirCoordSet(pos, conn1), advtrains.trackplacer_dir_to_node_mapping[node1_conn1.."_"..((conn1+4)%8)])
				end
			elseif not advtrains.is_track_and_drives_on(minetest.get_node(advtrains.dirCoordSet(pos, node1_conn2)).name, advtrains.all_tracktypes) then
				if advtrains.trackplacer_dir_to_node_mapping[node1_conn2.."_"..((conn1+4)%8)] then
					minetest.set_node(advtrains.dirCoordSet(pos, conn1), advtrains.trackplacer_dir_to_node_mapping[node1_conn2.."_"..((conn1+4)%8)])
				end
			end
		end
		
		local node2=minetest.get_node(advtrains.dirCoordSet(pos, conn2))
		local node2_conn1, node2_conn2=advtrains.get_track_connections(node2.name, node2.param2)
		local node2_backconnects=(conn2+4)%8==node2_conn1 or (conn2+4)%8==node2_conn2
		if not node2_backconnects and advtrains.trackplacer_modified_rails[node2.name] then
			--check if this rail has a dangling connection
			--TODO possible problems on |- situation
			if not advtrains.is_track_and_drives_on(minetest.get_node(advtrains.dirCoordSet(pos, node2_conn1)).name, advtrains.all_tracktypes) then
				if advtrains.trackplacer_dir_to_node_mapping[node2_conn1.."_"..((conn2+4)%8)] then
					minetest.set_node(advtrains.dirCoordSet(pos, conn2), advtrains.trackplacer_dir_to_node_mapping[node2_conn1.."_"..((conn2+4)%8)])
				end
			elseif not advtrains.is_track_and_drives_on(minetest.get_node(advtrains.dirCoordSet(pos, node2_conn2)).name, advtrains.all_tracktypes) then
				if advtrains.trackplacer_dir_to_node_mapping[node2_conn2.."_"..((conn1+4)%8)] then
					minetest.set_node(advtrains.dirCoordSet(pos, conn2), advtrains.trackplacer_dir_to_node_mapping[node2_conn2.."_"..((conn2+4)%8)])
				end
			end
		end
		minetest.set_node(pos, advtrains.trackplacer_dir_to_node_mapping[conn1.."_"..conn2])
	end
end


advtrains.trackworker_cycle_nodes={
	["swr_cr"]="st",
	["swr_st"]="st",
	["st"]="cr",
	["cr"]="swl_st",
	["swl_cr"]="swr_cr",
	["swl_st"]="swr_st",
}

function advtrains.register_track_placer(nnprefix, imgprefix, dispname)
	minetest.register_craftitem(nnprefix.."_placer",{
		description = dispname,
		inventory_image = imgprefix.."_placer.png",
		wield_image = imgprefix.."_placer.png",
		on_place = function(itemstack, placer, pointed_thing)
			if pointed_thing.type=="node" then
				local pos=pointed_thing.above
				if minetest.registered_nodes[minetest.get_node(pos).name] and minetest.registered_nodes[minetest.get_node(pos).name].buildable_to then
					advtrains.placetrack(pos, nnprefix)
					itemstack:take_item()
				end
			end
			return itemstack
		end,
	})
end



minetest.register_craftitem("advtrains:trackworker",{
	description = "Track Worker Tool\n\nLeft-click: change rail type (straight/curve/switch)\nRight-click: rotate rail",
	groups = {cracky=1}, -- key=name, value=rating; rating=1..3.
	inventory_image = "advtrains_trackworker.png",
	wield_image = "advtrains_trackworker.png",
	stack_max = 1,
	on_place = function(itemstack, placer, pointed_thing)
		if pointed_thing.type=="node" then
			local pos=pointed_thing.under
			local node=minetest.get_node(pos)
			
			if not advtrains.is_track_and_drives_on(minetest.get_node(pos).name, advtrains.all_tracktypes) then return end