Add 3D models and animation for players

mods/models/init.lua

@@ -0,0 +1,159 @@
+
+minetest.register_on_joinplayer(function(player)
+	player:set_properties({
+		mesh = "models_player.b3d",
+		textures = {"models_player.png"},
+		visual = "mesh",
+		visual_size = {x=10/16, y=20/32},
+	})
+end)
+
+local players = {
+	--[[
+		[name] = {
+			ArmLeft  = {pos, rot, dir, lim, speed},
+			ArmRight = {pos, rot, dir, lim, speed},
+			LegLeft  = {pos, rot, dir, lim, speed},
+			place = bool,
+		}
+	]]
+}
+
+local placed = {
+	-- [name] = bool
+}
+
+minetest.register_on_placenode(function(pos, newnode, placer, oldnode, itemstack)
+	placed[placer:get_player_name()] = true
+end)
+
+minetest.register_globalstep(function(dtime)
+	for _,player in ipairs(minetest.get_connected_players()) do
+		local name = player:get_player_name()
+		
+		-- init
+		if not players[name] then
+			players[name] = {
+				ArmLeft = {pos={x=0.54, y=1, z=0}, rot={x=0, y=0, z=0}, dir=0, speed=30*5, lim={30, -30}},
+				ArmRight = {pos={x=-0.51, y=1, z=0}, rot={x=0, y=0, z=0}, dir=0, speed=30*5, lim={30, -30}},
+				LegLeft = {pos={x=0.19, y=0, z=0}, rot={x=0, y=0, z=0}, dir=0, speed=40*5, lim={40, -40}},
+			}
+		end
+		
+		-- Calc changes in dir
+		local c = player:get_player_control()
+		local walk = c.up or c.down or c.left or c.right
+		local dig = c.LMB
+		local sneak = c.sneak
+		local pitch = player:get_look_pitch()*180/math.pi
+		if pitch > 50 then pitch = 50 end
+		if pitch < -70 then pitch = -70 end
+		
+		if walk then
+			if players[name].ArmLeft.dir == 0 then
+				players[name].ArmLeft.dir = -1
+			end
+			if not dig and players[name].ArmRight.dir == 0 then
+				players[name].ArmRight.dir = 1
+			end
+			if players[name].LegLeft.dir == 0 then
+				players[name].LegLeft.dir = 1
+			end
+		else
+			players[name].ArmLeft.dir = 0
+			if not dig then
+				players[name].ArmRight.dir = 0
+			end
+			players[name].LegLeft.dir = 0
+		end
+		
+		if sneak then
+			players[name].ArmLeft.speed = 20*2
+			players[name].ArmLeft.lim = {20, -20}
+			players[name].LegLeft.speed = 30*2
+			players[name].LegLeft.lim = {30, -30}
+		end
+		
+		if placed[name] then
+			players[name].ArmRight.rot.x = pitch+90
+			placed[name] = false
+		end
+		
+		if dig then
+			players[name].ArmRight.speed = 20*20
+			players[name].ArmRight.lim = {100+pitch, 60+pitch}
+			if players[name].ArmRight.dir == 0 then
+				players[name].ArmRight.dir = 1
+			end
+		else
+			if math.abs(-players[name].ArmLeft.rot.x - players[name].ArmRight.rot.x) > 15 then
+				players[name].ArmRight.speed = 30*10
+				players[name].ArmRight.lim = {-players[name].ArmLeft.rot.x+1, -players[name].ArmLeft.rot.x-1}
+			elseif sneak then
+				players[name].ArmRight.speed = 20*2
+				players[name].ArmRight.lim = {20, -20}
+			else
+				players[name].ArmRight.speed = 30*5
+				players[name].ArmRight.lim = {30, -30}
+			end
+		end
+		
+		-- Calc new rotation
+		for bone,tab in pairs(players[name]) do
+			if tab.dir == -1 then
+				tab.rot.x = tab.rot.x - tab.speed*dtime
+				if tab.rot.x < tab.lim[2] then
+					tab.dir = 1
+				end
+			elseif tab.dir == 1 then
+				tab.rot.x = tab.rot.x + tab.speed*dtime
+				if tab.rot.x > tab.lim[1] then
+					tab.dir = -1
+				end
+			else
+				if tab.rot.x < 0 then
+					tab.rot.x = tab.rot.x + tab.speed*dtime
+					if tab.rot.x > 0 then
+						tab.rot.x = 0
+					end
+				elseif tab.rot.x > 0 then
+					tab.rot.x = tab.rot.x - tab.speed*dtime
+					if tab.rot.x < 0 then
+						tab.rot.x = 0
+					end
+				end
+			end
+		end
+		
+		-- Apply it
+		for bone,tab in pairs(players[name]) do
+			player:set_bone_position(bone, tab.pos, tab.rot)
+			if bone == "LegLeft" then
+				local rot = {x=tab.rot.x, y=tab.rot.y, z=tab.rot.z}
+				rot.x = -rot.x
+				player:set_bone_position("LegRight", {x=-0.19, y=0, z=0}, rot)
+			end
+		end
+		local factor = 1
+		if c.down and not c.up then
+			factor = -1
+		end
+		if c.left and not c.right then
+			player:set_bone_position("Body",{x=0,y=0,z=0}, {x=180,y=30*factor,z=180})
+		elseif c.right and not c.left then
+			player:set_bone_position("Body",{x=0,y=0,z=0}, {x=180,y=-30*factor,z=180})
+		else
+			player:set_bone_position("Body",{x=0,y=0,z=0}, {x=180,y=0,z=180})
+		end
+		
+		
+		-- apply head rotation
+		if c.left and not c.right then
+			player:set_bone_position("Head", vector.new(0,1,0), vector.new(pitch,30*factor,0))
+		elseif c.right and not c.left then
+			player:set_bone_position("Head", vector.new(0,1,0), vector.new(pitch,-30*factor,0))
+		else
+			player:set_bone_position("Head", vector.new(0,1,0), vector.new(pitch,0,0))
+		end
+	end
+end)