Inital commit

Readme.md

@@ -0,0 +1,11 @@
+# Glider: A Realistic Hang Glider Mod
+
+![Screenshot](screenshot.png)
+
+Have you ever wanted to glide through the mountains and feel the wind rushing by you?
+
+Well now, you can!
+
+The glider mod adds two items: the glider itself, and a handheld rocket used to boost your speed. 
+Punch while holding the glider to take off and soar. 
+The glider will close when you hit something or when you punch with the glider again.

init.lua

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+local function rot_to_dir(rot)
+	local x = -math.cos(rot.x) * math.sin(rot.y)
+	local y = math.sin(rot.x)
+	local z = math.cos(rot.x) * math.cos(rot.y)
+	return {x = x, y = y, z = z}
+end
+
+local mouse_controls = minetest.settings:get_bool("glider_mouse_controls", true)
+
+local on_step = function(self, dtime)
+	local vel = self.object:get_velocity()
+	local speed = self.speed
+	local actual_speed = math.sqrt(vel.x^2+vel.y^2+vel.z^2)
+	local rot = self.object:get_rotation()
+	local driver = minetest.get_player_by_name(self.driver)
+	local pos = self.object:get_pos()
+	
+	--Check Surroundings
+	local land = false
+	crash_speed = 0
+	local under = minetest.get_node(vector.new(pos.x,pos.y-1,pos.z))
+	local above = minetest.get_node(vector.new(pos.x,pos.y+1,pos.z))
+	local north = minetest.get_node(vector.new(pos.x,pos.y,pos.z+1))
+	local south = minetest.get_node(vector.new(pos.x,pos.y,pos.z-1))
+	local east = minetest.get_node(vector.new(pos.x+1,pos.y,pos.z))
+	local west = minetest.get_node(vector.new(pos.x-1,pos.y,pos.z))
+	if minetest.registered_nodes[under.name].walkable then
+		land = true
+		crash_speed = math.abs(math.min(0, vel.y))
+	elseif minetest.registered_nodes[above.name].walkable then
+		land = true
+		crash_speed = math.abs(math.max(0, vel.y))
+	elseif minetest.registered_nodes[north.name].walkable then
+		land = true
+		crash_speed = math.abs(math.max(0, vel.z))
+	elseif minetest.registered_nodes[south.name].walkable then
+		land = true
+		crash_speed = math.abs(math.min(0, vel.z))
+	elseif minetest.registered_nodes[east.name].walkable then
+		land = true
+		crash_speed = math.abs(math.max(0, vel.x))
+	elseif minetest.registered_nodes[west.name].walkable then
+		land = true
+		crash_speed = math.abs(math.min(0, vel.x))
+	end
+	
+	if land then
+		driver:set_detach()
+		driver:set_eye_offset({x=0,y=0,z=0},{x=0,y=0,z=0})
+		driver:add_player_velocity(vel)
+		local crash_dammage = math.floor(math.max(crash_speed-5, 0))
+		if crash_dammage > 0 then
+			local node = minetest.get_node(pos)
+			if minetest.registered_nodes[node.name].liquidtype ~= "none" then
+				local hp = driver:get_hp()
+				driver:set_hp(hp-crash_dammage, {type = "fall"})
+			end
+		end
+		self.object:remove()
+	end
+	
+	if mouse_controls then
+		rot.x = rot.x + (-driver:get_look_vertical()-rot.x)*(dtime*2)
+		local hor = driver:get_look_horizontal()
+		local angle = hor-rot.y
+		if angle < -math.pi then angle = angle + math.pi*2 end
+		if angle > math.pi then angle = angle - math.pi*2 end
+		rot.y = rot.y + angle*(dtime*2)
+		speed = speed - math.abs(angle*dtime)
+		rot.z = -angle
+	else
+		local control = driver:get_player_control()
+		if control.up then
+			rot.x = rot.x + dtime
+		end
+		if control.down then
+			rot.x = rot.x - dtime
+		end
+		if control.left then
+			rot.z = rot.z - 2*dtime
+		end
+		if control.right then
+			rot.z = rot.z + 2*dtime
+		end
+		
+		if rot.z ~= 0 then
+			speed = speed - math.abs(rot.z*dtime)
+			if math.abs(rot.z) < 0.01 then
+				rot.z = 0
+			end
+			rot.y = rot.y - (rot.z*dtime)
+			rot.z = rot.z - rot.z*dtime
+		end
+	end
+	
+	speed = math.max(speed - (rot.x^3)*4 * dtime, 2)
+	self.object:set_rotation(rot)
+	local dir = rot_to_dir(rot)
+	local gravity = -20 * (((speed)/4)^-1)/2
+	dir = {x = dir.x*speed, y = dir.y*speed+gravity, z = dir.z*speed}
+	self.speed = speed
+	self.object:set_velocity(dir)
+end
+
+
+
+
+minetest.register_entity("glider:hangglider", {
+	physical = true,
+	pointable = false,
+	visual = "mesh",
+	mesh = "glider_hangglider.obj",
+	textures = {"glider_hangglider.png"},
+	static_save = false,
+	--Functions
+	on_step = on_step,
+	driver = "",
+	free_fall = false,
+	speed = 0,
+})
+
+minetest.register_tool("glider:glider", {
+	description = "Glider",
+	inventory_image = "glider_glider.png",
+	on_use = function(itemstack, user, pt)
+		local name = user:get_player_name()
+		local pos = user:get_pos()
+		local attach = user:get_attach()
+		local luaent = nil
+		if attach then 
+			luaent = attach:get_luaentity()
+			if luaent.name == "glider:hangglider" then
+				local vel = attach:get_velocity()
+				attach:remove()
+				user:set_detach()
+				user:set_eye_offset({x=0,y=0,z=0},{x=0,y=0,z=0})
+				user:add_player_velocity(vel)
+			end
+		else
+			pos.y = pos.y + 1.5
+			local ent = minetest.add_entity(pos, "glider:hangglider")
+			luaent = ent:get_luaentity()
+			luaent.driver = name
+			local rot = {y = user:get_look_horizontal(), x = -user:get_look_vertical(), z = 0}
+			ent:set_rotation(rot)
+			local vel = vector.multiply(user:get_player_velocity(),2)
+			ent:set_velocity(vel)
+			luaent.speed = math.sqrt(vel.x^2+(vel.y/4)^2+vel.z^2)
+			user:set_attach(ent, "", {x=0,y=0,z=-10}, {x=90,y=0,z=0})
+			user:set_eye_offset({x=0,y=-16.25,z=0},{x=0,y=-15,z=0})
+		end
+	end,
+})
+
+minetest.register_craftitem("glider:rocket", {
+	description = "Rocket (Use while gliding to boost glider speed)",
+	inventory_image = "glider_rocket.png",
+	on_use = function(itemstack, user, pt)
+		local attach = user:get_attach()
+		if attach then
+			local luaent = attach:get_luaentity()
+			if luaent.name == "glider:hangglider" then
+				luaent.speed = luaent.speed + 10
+				itemstack:take_item()
+				minetest.add_particlespawner({
+					amount = 1000,
+					time = 2,
+					minpos = {x = -0.125, y = -0.125, z = -0.125},
+					maxpos = {x = 0.125, y = 0.125, z = 0.125},
+					minexptime = 0.5,
+					maxexptime = 1.5,
+					attached = attach,
+					texture = "glider_rocket_particle.png",
+				})
+				return itemstack
+			end
+		end
+	end
+})
+
+minetest.register_craft({
+	output = "glider:glider",
+	recipie = {
+		{"group:wool", "group:wool", "group:wool" },
+		{"group:stick","",           "group:stick"},
+		{"",           "group:stick",""           },
+	}
+})
+
+minetest.register_craft({
+	output = "glider:rocket 33",
+	recipie = {
+		{"group:wood","tnt:gunpowder","group:wood"},
+		{"group:wood","tnt:gunpowder","group:wood"},
+		{"group:wood","tnt:gunpowder","group:wood"},
+	}
+})

mod.conf

@@ -0,0 +1,3 @@
+name = glider
+description = Adds fully functional hang gliders to Minetest
+optional_depends = tnt

models/glider_hangglider.obj

@@ -0,0 +1,149 @@
+# Blender v2.79 (sub 0) OBJ File: 'hangglider.blend'
+# www.blender.org
+o Cube_Cube.002
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settingtypes.txt

@@ -0,0 +1,3 @@
+#When enabled the player will control the glider via looking around.
+#When disabled the player will control the glider via the movement keys.
+glider_mouse_controls (Mouse Controls) bool true