Shared health

files/cbs/redirect_damage_to_host.lua

@@ -0,0 +1,14 @@
+function damage_received( damage, message, entity_thats_responsible, is_fatal, projectile_thats_responsible )
+    local entity_id = GetUpdatedEntityID()
+    local damageModelComponent = EntityGetFirstComponentIncludingDisabled( entity_id, "DamageModelComponent" )
+    if damageModelComponent ~= nil then
+        local health = ComponentGetValue2( damageModelComponent, "hp" )
+        if health then
+            ComponentSetValue2( damageModelComponent, "hp", health + damage )
+        end
+    end
+    local host_ent = EntityGetWithTag("ew_host")[1]
+    if host_ent ~= nil then        
+        EntityInflictDamage(host_ent, damage, "DAMAGE_CURSE", message, "NONE", 0, 0, entity_thats_responsible)
+    end
+end

files/src/net_handling.lua

@@ -20,6 +20,7 @@ end
 
 function net_handling.proxy.peer_id(_, value)
     ctx.my_id = tonumber(value)
+    ctx.is_host = ctx.my_id == ctx.host_id
 end
 
 function net_handling.mod.player(peer_id, value)
@@ -79,6 +80,7 @@ function net_handling.mod.host_player(peer_id, player_infos)
         if player_infos[id] ~= nil then
             local info = player_infos[id]
             util.set_ent_health(player_data.entity, {info[1], info[2]})
+            util.set_ent_air(player_data.entity, {info[3], info[4]})
         end
     end
 end

files/src/player_fns.lua

@@ -396,7 +396,9 @@ function player_fns.spawn_player_for(peer_id, x, y)
     local new = EntityLoad("mods/quant.ew/files/entities/client.xml", x, y)
     local new_playerdata = player_fns.make_playerdata_for(new, peer_id)
     ctx.players[peer_id] = new_playerdata
-    if not ctx.is_host then
+    if ctx.is_host then
+        EntityAddComponent2(new, "LuaComponent", {script_damage_received = "mods/quant.ew/files/cbs/redirect_damage_to_host.lua"})
+    else
         EntityAddComponent2(new, "LuaComponent", {script_damage_about_to_be_received = "mods/quant.ew/files/cbs/immortal.lua"})
     end
 end

files/src/util.lua

@@ -52,6 +52,16 @@ function util.get_ent_health(entity)
     return hp, max_hp
 end
 
+function util.get_ent_air(entity)
+    local damage_model = EntityGetFirstComponentIncludingDisabled(entity, "DamageModelComponent")
+    if damage_model == nil then
+        return 0, 0
+    end
+    local air = ComponentGetValue2(damage_model, "air_in_lungs")
+    local max_air = ComponentGetValue2(damage_model, "air_in_lungs_max")
+    return air, max_air
+end
+
 function util.set_ent_health(entity, hp_data)
     local damage_model = EntityGetFirstComponentIncludingDisabled(entity, "DamageModelComponent")
     if damage_model == nil then
@@ -65,6 +75,19 @@ function util.set_ent_health(entity, hp_data)
     end
 end
 
+function util.set_ent_air(entity, air_data)
+    local damage_model = EntityGetFirstComponentIncludingDisabled(entity, "DamageModelComponent")
+    if damage_model == nil then
+        return
+    end
+    if air_data[1] ~= nil then
+        ComponentSetValue2(damage_model, "air_in_lungs", air_data[1])
+    end
+    if air_data[2] ~= nil then
+        ComponentSetValue2(damage_model, "air_in_lungs_max", air_data[2])
+    end
+end
+
 function util.lerp(a, b, alpha)
     return a * alpha + b * (1 - alpha)
 end

init.lua

@@ -80,12 +80,13 @@ function OnPlayerSpawned( player_entity ) -- This runs when player entity has be
     GamePrint("My peer_id: "..ctx.my_id)
     ctx.players[ctx.my_id] = my_player
     ctx.ready = true
-    ctx.is_host = ctx.my_id == ctx.host_id
 
     np.SetPauseState(4)
     np.SetPauseState(0)
 
-    if not ctx.is_host then
+    if ctx.is_host then
+        EntityAddTag(player_entity, "ew_host")
+    else
         EntityAddComponent2(player_entity, "LuaComponent", {script_damage_about_to_be_received = "mods/quant.ew/files/cbs/immortal.lua"})
     end
 
@@ -129,10 +130,11 @@ function on_world_pre_update_inner()
 
     if ctx.is_host and GameGetFrameNum() % 4 == 3 then
         local player_info = {}
+        local hp, max_hp = util.get_ent_health(my_player.entity)
         for id, player_data in pairs(ctx.players) do
             local entity = player_data.entity
-            local hp, max_hp = util.get_ent_health(entity)
-            player_info[id] = {hp, max_hp}
+            local air, max_air = util.get_ent_air(entity)
+            player_info[id] = {hp, max_hp, air, max_air}
         end
         net.send_host_player_info(player_info)
     end