Added aerial faith plates model/texture, the portal gun is entity now, added animation and visual effects of shooting

aerial_faith_plate.lua

@@ -0,0 +1,41 @@
+minetest.register_node("portaltest:aerial_faith_plate", {
+	description = "Aerial Faith Plate (Click to set up parameters of bouncing)",
+	drawtype = "nodebox",
+	tiles = {
+		"portaltest_aerial_faith_plate_top.png",
+		"portaltest_aerial_faith_plate_bottom.png",
+		"portaltest_aerial_faith_plate_side.png"
+	},
+	use_texture_alpha = true,
+	paramtype = "light",
+	paramtype2 = "facedir",
+	node_box = {
+		type = "fixed",
+		fixed = {-0.5, -0.5, -0.5, 0.5, -0.41, 0.5}
+	},
+	selection_box = {
+		type = "fixed",
+		fixed = {-0.5, -0.5, -0.5, 0.5, -0.41, 0.5}
+	},
+	groups = {choppy=2.5},
+	sounds = default.node_sound_wood_defaults(),
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("formspec", [[
+			formspec_version[4]
+			size[9,7]
+			style_type[label;font=normal,bold;font_size=*1.5]
+			]] ..
+			"label[1.5,1;Set up bouncing direction and\n maximum height and distance:]" ..
+			[[
+			style_type[label;font=normal,bold;font_size=]
+			label[1.5,2.5;Max Height:]
+			label[5.5,2.5;Max Distance:]
+			label[3.5,4;Direction:]
+			field[1.5,3;2,0.5;max_height;;]
+			field[5.5,3;2,0.5;max_distance;;]
+			field[3.5,4.5;2,0.5;direction;;]
+			button[3,5.5;3,1;save;Save]
+		]])
+	end
+}) 

config.lua

@@ -11,7 +11,7 @@ gsettings.SPLASH_STREAM_SPEED = 50
 gsettings.SPLASH_DROP_LIFETIME = 2
 
 -- splash stream collision box
-gsettings.SPLASH_STREAM_COLLISION_BOX = {-0.1, -0.1, -0.1, 0.1, 0.1, 0.1}
+gsettings.SPLASH_STREAM_COLLISION_BOX = {-0.01, -0.01, -0.01, 0.01, 0.01, 0.01}
 
 -- splash drop collision box
-gsettings.SPLASH_DROP_COLLISION_BOX = {-0.05, -0.05, -0.05, 0.05, 0.05, 0.05}
+gsettings.SPLASH_DROP_COLLISION_BOX = {-0.005, -0.005, -0.005, 0.005, 0.005, 0.005}

gun.lua

@@ -2,11 +2,16 @@
 
 gun = {}
 
+-- Table for referencing to a gun entity of each player that is wielding that currently
+gun.spawned_guns = {}
+
+local gun_shift = {x=0.3, y=1.2, z=0.5}
+
 gun.generate_splash_particles = function(pos, normal, splash_color)
     local rand_amount = math.random(20, 25)
 
-	local min_vel_dir = vector.rotate(normal, {x=0, y=-math.pi/4, z=0})
-	local max_vel_dir = vector.rotate(normal, {x=-math.pi/4, y=math.pi/4, z=0})
+	local min_vel_dir = vector.rotate(normal, {x=-math.pi/4, y=-math.pi/4, z=0})
+	local max_vel_dir = vector.rotate(normal, {x=math.pi/4, y=math.pi/4, z=0})
 
 	minetest.add_particlespawner({
 		amount = rand_amount,
@@ -27,19 +32,61 @@ gun.generate_splash_particles = function(pos, normal, splash_color)
 		texture = "portaltest_splash_drop.png^[multiply:" .. splash_color,
 		glow = 7
 	})
-    --[[for i = 1, rand_amount do
-        local rand_pitch = -math.rad(math.random(10, 45))
-        local rand_yaw = math.rad(math.random(10, 45)) * signs[math.random(1, 2)]
+end
 
-        normal = vector.rotate_around_axis(normal, side, rand_pitch)
-        local up = vector.cross(side, normal)
+-- Recalculates a new position and rotation for gun relatively to the player`s rotation.
+gun.calculate_gun_pos_and_rot = function(player)
+	local rot = {x=-player:get_look_vertical(), y=player:get_look_horizontal(), z=0}
 
-        local res_dir = vector.rotate_around_axis(normal, up, rand_yaw)
+	local pos = vector.add(player:get_pos(), vector.rotate(gun_shift, {x=0, y=player:get_look_horizontal(), z=0}))
 
-        local splash_drop = minetest.add_entity(pos, "portaltest:splash_drop")
-        splash_drop:set_properties({textures={"portaltest_splash_drop.png^[multiply:" .. splash_color}})
-        splash_drop:set_velocity(vector.multiply(res_dir, 4))
-    end]]
+	return pos, rot
+end
+
+-- Shifts the gun entity backward and turns right a bit for a visual effect while shooting. Also knockback a bit the player`s camera.
+gun.knockback_gun = function(player, gun)
+	local shift_back = -0.05
+	local rot_right = -math.rad(1)
+	local cam_rot_d = -math.rad(5)
+
+	local elapsed = 0.0
+	local dtime = 0.05
+
+	local orig_cam_dir = player:get_look_dir()
+	minetest.debug("gun.knockback_gun()")
+	local function knockback(gun)
+		elapsed = elapsed + dtime
+		minetest.debug("elapsed: " .. tostring(elapsed))
+		if not gun:get_luaentity() then
+			return
+		end
+
+		if elapsed >= 0.5 and elapsed < 0.55 or elapsed > 0.45 and elapsed <= 0.5 then
+			minetest.debug("elapsed = 0.5")
+			rot_right = -rot_right
+			shift_back = -shift_back
+			cam_rot_d = -cam_rot_d
+		end
+
+		player:set_look_vertical(player:get_look_vertical()+cam_rot_d)
+
+		gun:set_pos(vector.add(gun:get_pos(), vector.multiply(orig_cam_dir, shift_back)))
+		local cur_rot = gun:get_rotation()
+		gun:set_rotation({x=cur_rot.x, y=cur_rot.y+rot_right, z=cur_rot.z})
+
+
+		if elapsed < 1.0 then
+			minetest.after(dtime, knockback, gun)
+		else
+			player:get_meta():set_string("is_shooting", "")
+		end
+
+		return true
+	end
+
+	minetest.after(dtime, knockback, gun)
+
+	return true
 end
 
 gun.bounce_splash_drop = function(drop, surface_normal)
@@ -54,11 +101,80 @@ gun.bounce_splash_drop = function(drop, surface_normal)
 	drop:set_velocity(new_vel)
 end
 
+gun.shoot = function(player, gun, ball_color)
+	if not gun:get_luaentity() then
+		return
+	end
+
+	local dir = player:get_look_dir()
+	local gun_pos = gun:get_pos()
+
+	local gun_ball = minetest.add_entity(gun_pos, "portaltest:gun_ball")
+	gun_ball:set_properties({textures={"portaltest_gun_ball.png^[multiply:" .. ball_color}})
+	gun_ball:set_velocity(vector.multiply(dir, gsettings.SPLASH_STREAM_SPEED))
+
+	return true
+end
+
 gun.global_step_through_players_with_guns = function()
     local players = minetest.get_connected_players()
 
     for _, player in ipairs(players) do
-        if player:get_wielded_item():get_name() == "portaltest:gun_empty" then
+		local name = player:get_player_name()
+        if player:get_wielded_item():get_name() == "portaltest:gun_item" then
+			local gun_pos, gun_rot = gun.calculate_gun_pos_and_rot(player)
+			if not gun.spawned_guns[name] then
+				minetest.debug("add gun entity")
+				gun.spawned_guns[name] = minetest.add_entity(gun_pos, "portaltest:gun")
+				player_api.set_model(player, "portaltest_player_with_gun.b3d")
+			else
+				gun.spawned_guns[name]:set_pos(gun_pos)
+			end
+
+			gun.spawned_guns[name]:set_rotation(gun_rot)
+
+
+			local ctrls = player:get_player_control()
+
+			local anim
+			local speed = 30
+			local meta = player:get_meta()
+			if ctrls.up or ctrls.right then
+				anim = "walk_forward"
+			elseif ctrls.down or ctrls.left then
+				anim = "walk_backward"
+			elseif ctrls.LMB or ctrls.RMB then
+				if meta:get_string("is_shooting") == "" then
+					minetest.debug("\'is_shooting\' is empty!")
+					anim = "shoot"
+					speed = 10
+
+					local gun_color = ctrls.LMB and "blue" or "orange"
+					meta:set_string("is_shooting", "1")
+					minetest.debug("\'is_shooting\' is 1!")
+
+					gun.spawned_guns[name]:set_properties({textures={"portaltest_gun.png", "portaltest_gun_" .. gun_color .. "_tube.png"}})
+
+					gun.shoot(player, gun.spawned_guns[name], gun_color)
+					gun.knockback_gun(player, gun.spawned_guns[name])
+				end
+
+
+			elseif meta:get_string("is_shooting") == "" then
+				anim = "stand"
+			end
+
+			player_api.set_animation(player, anim, speed)
+		else
+			if gun.spawned_guns[name] then
+				gun.spawned_guns[name]:remove()
+				gun.spawned_guns[name] = nil
+				player_api.set_model(player, "character.b3d")
+			end
+		end
+
+
+		--[[
             local ctrls = player:get_player_control()
             local color = ""
 
@@ -89,7 +205,7 @@ gun.global_step_through_players_with_guns = function()
             minetest.after(0.5, function()
                 player:set_wielded_item(ItemStack("portaltest:gun_empty"))
             end)
-        end
+        end]]
     end
 end
 
@@ -99,7 +215,7 @@ gun.get_pointedthing_info = function(pos, dir, ray_length)
 
 	local target_pt
 	for pt in raycast do
-		if pt.type == "object" then
+		--[[if pt.type == "object" then
 			local self = pt.ref:get_luaentity()
 			if self then
 				minetest.debug("ray has intersected an object with name: " .. self.name)
@@ -110,14 +226,16 @@ gun.get_pointedthing_info = function(pos, dir, ray_length)
 					--minetest.debug("raycast: " .. self.name)
 				end
 			end
-		elseif pt.type == "node" then
-			minetest.debug("raycast has intersected a node with name: " .. minetest.get_node(pt.under).name)
-			target_pt = pt
-			break
+		else]]
+		if pt.type == "node" then
+			--minetest.debug("raycast has intersected a node with name: " .. minetest.get_node(pt.under).name)
+			return pt
+			--target_pt = pt
+			--break
 		end
 	end
 
-	return target_pt
+	return
 end
 
 gun.update_player_portals_datas = function(player_meta)
@@ -187,7 +305,42 @@ gun.place_portal = function(placer, pt, color, param2, dir_to_top)
 	setp_meta:set_string("dir_to_top", minetest.serialize(dir_to_top))
 end
 
-minetest.register_node("portaltest:gun_empty", {
+
+-- Player model with gun
+player_api.register_model("portaltest_player_with_gun.b3d", {
+	animations = {
+		stand = {x = 1, y = 80},
+		sit = {x = 81, y = 161},
+		lay = {x = 162, y = 167},
+		walk_forward = {x = 168, y = 188},
+		walk_backward = {x = 188, y = 168},
+		shoot = {x = 189, y = 199}
+	}
+})
+
+
+-- Portal gun
+minetest.register_entity("portaltest:gun", {
+	visual_size = {x=3, y=3, z=3},
+	physical = false,
+	collision_box = {0, 0, 0, 0, 0, 0},
+	pointable = false,
+	visual = "mesh",
+	mesh = "portaltest_gun.b3d",
+	textures = {"portaltest_gun.png"},
+	glow = 4,
+	static_save = false
+})
+
+minetest.register_craftitem("portaltest:gun_item", {
+	description = "Portal Gun",
+	inventory_image = "portaltest_gun_inv.png",
+	wield_image = "portaltest_gun_inv.png^[opacity:0",
+	range = 0.0
+})
+-- Legacy code
+
+--[[minetest.register_node("portaltest:gun_empty", {
     drawtype = "mesh",
     visual_scale = 0.5,
     tiles = {"portaltest_gun.png^portaltest_gun_empty_tube.png"},
@@ -248,19 +401,19 @@ minetest.register_node("portaltest:gun_blue", {
 	on_place = function(itemstack, placer, pointed_thing)
 		return nil
 	end
-})
+})]]
 
 
 
 
-minetest.register_entity("portaltest:splash_stream", {
+minetest.register_entity("portaltest:gun_ball", {
     visual = "sprite",
     visual_size = {x=1, y=1, z=1},
     physical = true,
-    collide_with_objects = true,
+    collide_with_objects = false,
     collisionbox = gsettings.SPLASH_STREAM_COLLISION_BOX,
 	selectionbox = {0, 0, 0, 0, 0, 0},
-    textures = {"portaltest_splash_stream.png"},
+    textures = {"portaltest_gun_ball.png"},
     backface_culling = false,
     glow = 7,
     on_activate = function(self, staticdata, dtime_s)
@@ -279,12 +432,12 @@ minetest.register_entity("portaltest:splash_stream", {
 			--minetest.debug("self.last_velocity: " .. minetest.pos_to_string(self.last_velocity))
 			--minetest.debug("current velocity: " .. minetest.pos_to_string(vel))
 
-			local pt
-			if vector.length(self.move_dir) == 0 then
+			local pt = gun.get_pointedthing_info(pos, self.move_dir, 1)
+			--[[if vector.length(self.move_dir) == 0 then
 				pt = gun.get_pointedthing_info(pos, vector.normalize(vel), 1)
 			else
 				pt = gun.get_pointedthing_info(pos, self.move_dir, 1)
-			end
+			end]]
 
 			if pt then
 				minetest.debug("\'pt\' is not nil!")
@@ -293,8 +446,8 @@ minetest.register_entity("portaltest:splash_stream", {
 				--minetest.debug("pt.type: " .. pt.type)
 				local s, e = texture:find("%^%[multiply:", 1)
 				local color = texture:sub(e+1, texture:len())
-				local player = minetest.get_player_by_name(self.stream_emitter)
-				if pt.type == "node" then
+				--local player = minetest.get_player_by_name(self.stream_emitter)
+				--[[if pt.type == "node" then
 					if pt.intersection_normal.y == 0 then
 						-- Portal is placed on the wall
 						local node = minetest.get_node_or_nil(pt.under)
@@ -354,7 +507,7 @@ minetest.register_entity("portaltest:splash_stream", {
 							gun.place_portal(player, pt, color, target_param2, dir_to_top)
 						end
 					end
-				end
+				end]]
 
 				gun.generate_splash_particles(pt.intersection_point, pt.intersection_normal, color)
 
@@ -424,6 +577,11 @@ minetest.register_entity("portaltest:splash_stream", {
     end
 })]]
 
+minetest.register_on_shutdown(function()
+	for i, player in ipairs(minetest.get_connected_players()) do
+		player:get_meta():set_string("is_shooting", "")
+	end
+end)
 
 minetest.register_globalstep(function(dtime)
     gun.global_step_through_players_with_guns()

init.lua

@@ -1,5 +1,6 @@
 local modpath = minetest.get_modpath("portaltest")
 
+dofile(modpath .. "/aerial_faith_plate.lua")
 dofile(modpath .. "/config.lua")
 dofile(modpath .. "/gun.lua")
 dofile(modpath .. "/panels.lua")