update

README.txt

@@ -1,2 +1,2 @@
 TODO:
-— add craft stuff for the mining lasers (maybe a diamond [array?])
+— add craft stuff for the mining lasers (maybe a diamond [array?] and mirrors)

init.lua

@@ -364,6 +364,7 @@ minetest.register_ore({
 local path = minetest.get_modpath("extrablocks")
 
 dofile(path.."/settings.lua")
+dofile(path.."/vector_line.lua")
 if extrablocks_enable_moss then
 	dofile(path.."/natur.lua")
 end
@@ -376,6 +377,6 @@ end
 if extrablocks_tools then
 	dofile(path.."/tools.lua")
 end
-dofile(path.."/vector_line.lua")
+dofile(path.."/weapons.lua")
 dofile(path.."/mining_lasers.lua")
 print(string.format("[extrablocks] loaded after ca. %.2fs", os.clock() - load_time_start))

weapons.lua

@@ -0,0 +1,52 @@
+local gun_range = 100
+local gun_a = 200
+local gun_v = 100
+local shot_delay = vector.straightdelay(gun_range, gun_v, gun_a)
+
+local function paint(pos, pos0)
+	if minetest.get_node(pos).name == "air" then
+		if minetest.get_node(pos).name ~= "wool:blue" then
+			local delay = vector.straightdelay(vector.distance(pos,pos0), gun_v, gun_a)
+			minetest.after(delay, function(pos)
+					minetest.add_node(pos, {name="wool:blue"})
+				end, pos)
+		end
+		return true
+	end
+end
+
+local function shoot(player, range, particle_texture, particle_time, sound)
+	local t1 = os.clock()
+
+	local playerpos=player:getpos()
+	local dir=player:get_look_dir()
+
+	local startpos = vector.round({x=playerpos.x, y=playerpos.y+1.6, z=playerpos.z})
+	local a = vector.multiply(dir, gun_a)
+	local v = vector.multiply(dir, gun_v)
+	local nodes = vector.line(startpos, dir, range)
+
+	minetest.add_particle(startpos, v, a, particle_time, 1, false, particle_texture)
+	for i,p in ipairs(nodes) do
+		if minetest.get_node(p).name ~= "air" then
+			if minetest.get_node(p).name ~= "wool:blue"
+			and i > 1 then
+				posb = nodes[i-1]
+				paint(posb, startpos)
+			end
+			break
+		end
+	end
+	minetest.sound_play(sound, {pos = playerpos, gain = 1.0, max_hear_distance = range})
+
+	print("[technic] <gun> my shot was calculated after "..tostring(os.clock()-t1).."s")
+end
+
+minetest.register_tool("extrablocks:gun", {
+	description = "Test Gun",
+	inventory_image = "technic_mining_laser_mk3.png^[transformFY",
+	stack_max = 1,
+	on_use = function(itemstack, user)
+		shoot(user, gun_range, "wool_blue.png", shot_delay, "extrablocks_shot")
+	end,
+})