make core:mob.look_at public

res/scripts/components/mob.lua

@@ -26,6 +26,20 @@ def_prop("crouch_speed_mul", 0.35)
 def_prop("flight_speed_mul", 4.0)
 def_prop("gravity_scale", 1.0)
 
+local function normalize_angle(angle)
+    while angle > 180 do
+        angle = angle - 360
+    end
+    while angle <= -180 do
+        angle = angle + 360
+    end
+    return angle
+end
+
+local function angle_delta(a, b)
+    return normalize_angle(a - b)
+end
+
 local dir = {0, 0, -1}
 local flight = false
 
@@ -86,21 +100,25 @@ end
 
 local headIndex = rig:index("head")
 
--- todo: move somewhere
-local function update_head(point)
+function look_at(point, change_dir)
     local pos = tsf:get_pos()
     local viewdir = vec3.normalize(vec3.sub(point, pos))
 
     local dot = vec3.dot(viewdir, dir)
-    if dot > 0.0 then
+    if dot < 0.0 and not change_dir then
+        viewdir = mat4.mul(tsf:get_rot(), {0, 0, -1})
+    else
         dir[1] = dir[1] * 0.8 + viewdir[1] * 0.2
         dir[3] = dir[3] * 0.8 + viewdir[3] * 0.2
-    else
-        viewdir = mat4.mul(tsf:get_rot(), {0, 0, -1})
+    end
+
+    if not headIndex then
+        return
     end
 
     local headrot = mat4.idt()
-    local curdir = mat4.mul(mat4.mul(tsf:get_rot(), rig:get_matrix(headIndex)), {0, 0, -1})
+    local curdir = mat4.mul(mat4.mul(tsf:get_rot(),
+        rig:get_matrix(headIndex)), {0, 0, -1})
 
     vec3.mix(curdir, viewdir, 0.2, viewdir)
 
@@ -140,20 +158,6 @@ function set_flight(flag) flight = flag end
 
 local prev_angle = 0.0
 
-local function normalize_angle(angle)
-    while angle > 180 do
-        angle = angle - 360
-    end
-    while angle <= -180 do
-        angle = angle + 360
-    end
-    return angle
-end
-
-local function angle_delta(a, b)
-    return normalize_angle(a - b)
-end
-
 function on_physics_update(tps)
     local delta = (1.0 / tps)
 
@@ -174,19 +178,13 @@ function on_physics_update(tps)
     local rotate_speed = entity:get_player() == -1 and 200 or 400
 
     if math.abs(adelta) > 5 then
-        if adelta > 0 then
-            angle = angle + delta * rotate_speed
-        else
-            angle = angle - delta * rotate_speed
-        end
+        angle = angle + delta * rotate_speed * (adelta > 0 and 1 or -1)
     end
+
     tsf:set_rot(mat4.rotate({0, 1, 0}, angle + 180))
     prev_angle = angle
 
     if entity:get_player() == -1 then
-        update_head({player.get_pos(hud.get_player())})
-    else
-        local cam = cameras.get("core:first-person")
-        update_head(vec3.add({player.get_pos(entity:get_player())}, cam:get_front()))
+        look_at({player.get_pos(hud.get_player())})
     end
 end

res/scripts/components/player.lua

@@ -1,3 +1,4 @@
+local tsf = entity.transform
 local body = entity.rigidbody
 local mob = entity:require_component("core:mob")
 
@@ -54,6 +55,9 @@ function on_physics_update(tps)
     local delta = (1.0 / tps)
     local pid = entity:get_player()
     if pid ~= -1 then
+        local pos = tsf:get_pos()
+        local cam = cameras.get("core:first-person")
         process_player_inputs(pid, delta)
+        mob.look_at(vec3.add(pos, cam:get_front()))
     end
 end

src/logic/scripting/lua/libs/lib__skeleton.cpp

@@ -91,7 +91,7 @@ static int l_set_texture(lua::State* L) {
 }
 
 static int l_index(lua::State* L) {
-    if (auto skeleton= get_skeleton(L)) {
+    if (auto skeleton = get_skeleton(L)) {
         if (auto bone = skeleton->config->find(lua::require_string(L, 2))) {
             return lua::pushinteger(L, bone->getIndex());
         }