i dont remember

TODO.md

@@ -0,0 +1,24 @@
+
+- fix lighthouse pathing recusrive bug thing
+- make more towers
+- make/fix radar tower
+- do waves
+- make mob difficulty scale
+
+
+
+towers:
+1 - wall
+2 - howitzer
+3 -
+4 - redeye
+q -
+w - moat
+e -
+r - radar
+a -
+s - lighthouse
+
+d - not a tower, deselects current selection
+f -
+

src/extra.lua

@@ -1,4 +1,14 @@
 
+
+-- @TODO make it work with functions that return multiple values
+-- right now it discards returned values beyond the first
+function fprofile(f, ...)
+    local t1 = am.current_time()
+    local result = f(...)
+    log("%f", am.current_time() - t1)
+    return result
+end
+
 function booltostring(bool)
     return bool and "true" or "false"
 end

src/game.lua

@@ -77,7 +77,7 @@ local function can_do_build(hex, tile, tower_type)
     end
 
     if not tower_is_buildable_on(hex, tile, tower_type) then
-        local node = WIN.scene("cursor"):child(1)
+        local node = WIN.scene("cursor"):child(1):child(2)
         node.color = COLORS.CLARET
         node:action(am.tween(0.1, { color = COLORS.TRANSPARENT }))
 
@@ -150,6 +150,7 @@ local function game_action(scene)
 
     if WIN:mouse_pressed"left" then
         if state.hot and state.selected_tower_type and can_do_build(state.hex, state.tile, state.selected_tower_type) then
+            update_money(-get_tower_cost(state.selected_tower_type))
             build_tower(state.hex, state.selected_tower_type)
         end
     end
@@ -230,7 +231,7 @@ local function make_game_toolbelt()
         local name = get_tower_name(tower_type)
         local placement_rules = get_tower_placement_rules_text(tower_type)
         local short_desc = get_tower_short_description(tower_type)
-        local base_cost = get_tower_base_cost(tower_type)
+        local base_cost = get_tower_cost(tower_type)
 
         if not (name or placement_rules or short_desc or base_cost) then
             return am.group():tag"tower_tooltip_text"
@@ -245,7 +246,7 @@ local function make_game_toolbelt()
         }):tag"tower_tooltip_text"
     end
     local toolbelt = am.group{
-        get_tower_tooltip_text_node(state.selected_tower_type),
+        am.group():tag"tower_tooltip_text",
         am.rect(WIN.left, WIN.bottom, WIN.right, WIN.bottom + toolbelt_height, COLORS.TRANSPARENT)
     }:tag"toolbelt"
 
@@ -265,19 +266,23 @@ local function make_game_toolbelt()
     tower_select_square.hidden = true
     toolbelt:append(tower_select_square)
 
+    local keys = { '1', '2', '3', '4', 'q', 'w', 'e', 'r', 'a', 's', 'd', 'f' }
+    -- order of this array is the order of towers on the toolbelt.
     local tower_type_values = {
-        TOWER_TYPE.REDEYE,
-        TOWER_TYPE.LIGHTHOUSE,
         TOWER_TYPE.WALL,
-        TOWER_TYPE.MOAT
+        TOWER_TYPE.HOWITZER,
+        TOWER_TYPE.REDEYE,
+        TOWER_TYPE.MOAT,
+        TOWER_TYPE.RADAR,
+        TOWER_TYPE.LIGHTHOUSE
     }
-    local keys = { '1', '2', '3', '4', 'q', 'w', 'e', 'r', 'a', 's', 'd', 'f' }
     for i = 1, #keys do
+        local icon_texture = get_tower_icon_texture(tower_type_values[i])
         toolbelt:append(
             toolbelt_button(
                 size,
                 half_size,
-                get_tower_icon_texture(tower_type_values[i]),
+                icon_texture,
                 padding,
                 i,
                 offset,
@@ -289,7 +294,7 @@ local function make_game_toolbelt()
     select_tower_type = function(tower_type)
         state.selected_tower_type = tower_type
 
-        if TOWER_SPECS[state.selected_tower_type] then
+        if get_tower_spec(tower_type) then
             WIN.scene:replace("tower_tooltip_text", get_tower_tooltip_text_node(tower_type))
 
             local new_position = vec2((size + padding) * tower_type, size/2) + offset
@@ -314,19 +319,25 @@ local function make_game_toolbelt()
 end
 
 -- |color_f| can be a function that takes a hex and returns a color, or just a color
-function make_hex_cursor(position, radius, color_f)
+-- |action_f| should be an action that operates on the group node or nil
+function make_hex_cursor(position, radius, color_f, action_f)
     local color = type(color_f) == "userdata" and color_f or nil
     local map = spiral_map(vec2(0), radius)
     local group = am.group()
+
     for _,h in pairs(map) do
-        group:append(am.circle(hex_to_pixel(h), HEX_SIZE, color or color_f(h), 6))
+        local hexagon = am.circle(hex_to_pixel(h), HEX_SIZE, color or color_f(h), 6)
+        group:append(hexagon)
     end
+
+    if action_f then
+        group:action(action_f)
+    end
+
     return (am.translate(position) ^ group):tag"cursor"
 end
 
 function game_scene()
-
-
     local score = am.translate(WIN.left + 10, WIN.top - 20) ^ am.text("", "left"):tag"score"
     local money = am.translate(WIN.left + 10, WIN.top - 40) ^ am.text("", "left"):tag"money"
     local top_right_display = am.translate(WIN.right - 10, WIN.top - 20) ^ am.text("", "right", "top"):tag"top_right_display"
@@ -354,6 +365,7 @@ end
 
 function game_init()
     state = get_initial_game_state()
+    build_tower(HEX_GRID_CENTER, TOWER_TYPE.RADAR)
 
     WIN.scene:remove"game"
     WIN.scene:append(game_scene())

src/grid.lua

@@ -17,7 +17,7 @@ HEX_GRID_DIMENSIONS = vec2(HEX_GRID_WIDTH, HEX_GRID_HEIGHT)
 -- leaving y == 0 makes this the center in hex coordinates
 HEX_GRID_CENTER = vec2(math.floor(HEX_GRID_WIDTH/2)
                      , 0)
-                    -- math.floor(HEX_GRID_HEIGHT/2))
+                  -- , math.floor(HEX_GRID_HEIGHT/2))
 
 HEX_GRID_MINIMUM_ELEVATION = -1
 HEX_GRID_MAXIMUM_ELEVATION = 1
@@ -76,7 +76,7 @@ end
 function making_hex_unwalkable_breaks_flow_field(hex, tile)
     local original_elevation = tile.elevation
     -- making the tile's elevation very large *should* make it unwalkable
-    tile.elevation = 10
+    tile.elevation = 999
 
     local flow_field = generate_flow_field(state.map, HEX_GRID_CENTER)
     local result = not hex_map_get(flow_field, 0, 0)
@@ -121,8 +121,6 @@ function generate_and_apply_flow_field(map, start, world)
                                      ^ am.text(string.format("%.1f", flow.priority * 10)))
             else
                 map[i][j].priority = nil
-                log('fire')
-                -- should fire exactly once
             end
         end
     end
@@ -200,9 +198,6 @@ function random_map(seed)
 
     generate_and_apply_flow_field(map, HEX_GRID_CENTER, world)
 
-    world:append(am.translate(hex_to_pixel(HEX_GRID_CENTER))
-                 ^ pack_texture_into_sprite(TEXTURES.SATELLITE, HEX_PIXEL_WIDTH, HEX_PIXEL_HEIGHT))
-
     return map, am.translate(WORLDSPACE_COORDINATE_OFFSET) ^ world
 end
 

src/mob.lua

@@ -24,7 +24,7 @@ end
 
 -- check if a the tile at |hex| is passable by |mob|
 function mob_can_pass_through(mob, hex)
-    local tile = HEX_MAP.get(hex.x, hex.y)
+    local tile = state.map.get(hex.x, hex.y)
     return tile and tile_is_medium_elevation(tile)
 end
 
@@ -84,7 +84,7 @@ local function update_mob(mob, mob_index)
 
     -- figure out movement
     if last_frame_hex ~= mob.hex or not mob.frame_target then
-        local frame_target, tile = nil, nil
+        local frame_target, tile = false, false
         if mob.path then
             --log('A*')
             -- we have an explicitly stored target
@@ -92,8 +92,8 @@ local function update_mob(mob, mob_index)
 
             if not path_entry then
                 -- we should be just about to reach the target, delete the path.
-                mob.path = nil
-                mob.frame_target = nil
+                mob.path = false
+                mob.frame_target = false
                 return
             end
 
@@ -104,7 +104,7 @@ local function update_mob(mob, mob_index)
             if last_frame_hex ~= mob.hex and not mob_can_pass_through(mob, mob.frame_target) then
                 log('recalc')
                 mob.path = get_mob_path(mob, HEX_MAP, mob.hex, HEX_GRID_CENTER)
-                mob.frame_target = nil
+                mob.frame_target = false
             end
         else
             -- use the map's flow field - gotta find the the best neighbour
@@ -139,12 +139,19 @@ local function update_mob(mob, mob_index)
 
     -- do movement
     if mob.frame_target then
-        -- this is supposed to achieve frame rate independence, but i have no idea if it actually does
-        -- the constant multiplier at the beginning is how many pixels we want a mob with speed 1 to move in one frame
-        local rate = 4 * mob.speed / state.perf.avg_fps
-
-        mob.position = mob.position + math.normalize(hex_to_pixel(mob.frame_target) - mob.position) * rate
-        mob.node.position2d = mob.position
+        -- it's totally possible that the target we have was invalidated by a tower placed this frame,
+        -- or between when we last calculated this target and now
+        -- check for that now
+        if mob_can_pass_through(mob, mob.frame_target) then
+            -- this is supposed to achieve frame rate independence, but i have no idea if it actually does
+            -- the constant multiplier at the beginning is how many pixels we want a mob with speed 1 to move in one frame
+            local rate = 4 * mob.speed / state.perf.avg_fps
+
+            mob.position = mob.position + math.normalize(hex_to_pixel(mob.frame_target) - mob.position) * rate
+            mob.node.position2d = mob.position
+        else
+            mob.frame_target = false
+        end
     else
         log('no target')
     end

src/tower.lua

@@ -3,36 +3,48 @@
 TOWERS = {}
 
 TOWER_TYPE = {
-    REDEYE     = 1,
-    LIGHTHOUSE = 2,
-    WALL       = 3,
+    WALL       = 1,
+    HOWITZER   = 2,
+    --         = 3,
+    REDEYE     = 3,
+    --         = 5,
     MOAT       = 4,
+    --         = 7,
+    RADAR      = 5,
+    --         = 9,
+    LIGHTHOUSE = 6
 }
 
-TOWER_SPECS = {
-    [TOWER_TYPE.REDEYE] = {
-        name = "Redeye",
-        placement_rules_text = "Place on mountains or on Walls",
-        short_description = "Long range laser tower",
-        texture = TEXTURES.TOWER_REDEYE,
-        icon_texture = TEXTURES.TOWER_REDEYE_ICON,
-        base_cost = 25,
-    },
-    [TOWER_TYPE.LIGHTHOUSE] = {
-        name = "Lighthouse",
-        placement_rules_text = "Place next to - but not on - water or moats",
-        short_description = "Attracts and distracts mobs",
-        texture = TEXTURES.TOWER_LIGHTHOUSE,
-        icon_texture = TEXTURES.TOWER_LIGHTHOUSE_ICON,
-        base_cost = 25
-    },
+local TOWER_SPECS = {
     [TOWER_TYPE.WALL] = {
         name = "Wall",
         placement_rules_text = "Place on grass or dirt",
         short_description = "Restricts movement",
         texture = TEXTURES.TOWER_WALL,
         icon_texture = TEXTURES.TOWER_WALL_ICON,
-        base_cost = 5,
+        cost = 10,
+        range = 0,
+        props = {}
+    },
+    [TOWER_TYPE.HOWITZER] = {
+        name = "HOWITZER",
+        placement_rules_text = "Place on non-Water",
+        short_description = "Fires artillery. Range and cost increase with elevation of terrain underneath.",
+        texture = TEXTURES.TOWER_SHELL,
+        icon_texture = TEXTURES.TOWER_SHELL_ICON,
+        cost = 20,
+        range = 10,
+        props = {}
+    },
+    [TOWER_TYPE.REDEYE] = {
+        name = "Redeye",
+        placement_rules_text = "Place on Mountains or on Walls",
+        short_description = "Long-range, single-target laser tower",
+        texture = TEXTURES.TOWER_REDEYE,
+        icon_texture = TEXTURES.TOWER_REDEYE_ICON,
+        cost = 20,
+        range = 12,
+        props = {}
     },
     [TOWER_TYPE.MOAT] = {
         name = "Moat",
@@ -40,27 +52,55 @@ TOWER_SPECS = {
         short_description = "Restricts movement",
         texture = TEXTURES.TOWER_MOAT,
         icon_texture = TEXTURES.TOWER_MOAT_ICON,
-        base_cost = 5,
-    }
+        cost = 10,
+        range = 0,
+        props = {}
+    },
+    [TOWER_TYPE.RADAR] = {
+        name = "Radar",
+        placement_rules_text = "Place on any non-water",
+        short_description = "Provides information about incoming waves.",
+        texture = TEXTURES.TOWER_RADAR,
+        icon_texture = TEXTURES.TOWER_RADAR_ICON,
+        cost = 20,
+        range = 0,
+        props = {}
+    },
+    [TOWER_TYPE.LIGHTHOUSE] = {
+        name = "Lighthouse",
+        placement_rules_text = "Place next to - but not on - Water or Moats",
+        short_description = "Attracts nearby mobs; temporarily redirects their path",
+        texture = TEXTURES.TOWER_LIGHTHOUSE,
+        icon_texture = TEXTURES.TOWER_LIGHTHOUSE_ICON,
+        cost = 20,
+        range = 8,
+        props = {}
+    },
 }
 
+function get_tower_spec(tower_type)
+    return TOWER_SPECS[tower_type]
+end
 function get_tower_name(tower_type)
-    return TOWER_SPECS[tower_type] and TOWER_SPECS[tower_type].name
+    return TOWER_SPECS[tower_type].name
 end
 function get_tower_placement_rules_text(tower_type)
-    return TOWER_SPECS[tower_type] and TOWER_SPECS[tower_type].placement_rules_text
+    return TOWER_SPECS[tower_type].placement_rules_text
 end
 function get_tower_short_description(tower_type)
-    return TOWER_SPECS[tower_type] and TOWER_SPECS[tower_type].short_description
+    return TOWER_SPECS[tower_type].short_description
 end
 function get_tower_texture(tower_type)
-    return TOWER_SPECS[tower_type] and TOWER_SPECS[tower_type].texture
+    return TOWER_SPECS[tower_type].texture
 end
 function get_tower_icon_texture(tower_type)
     return TOWER_SPECS[tower_type] and TOWER_SPECS[tower_type].icon_texture
 end
-function get_tower_base_cost(tower_type)
-    return TOWER_SPECS[tower_type] and TOWER_SPECS[tower_type].base_cost
+function get_tower_cost(tower_type)
+    return TOWER_SPECS[tower_type].cost
+end
+function get_tower_range(tower_type)
+    return TOWER_SPECS[tower_type].range
 end
 
 local function make_tower_sprite(tower_type)
@@ -70,8 +110,28 @@ end
 do
     local tower_cursors = {}
     for _,i in pairs(TOWER_TYPE) do
-        tower_cursors[i] = make_tower_sprite(i)
-        tower_cursors[i].color = COLORS.TRANSPARENT
+        local tower_sprite = make_tower_sprite(i)
+        tower_sprite.color = COLORS.TRANSPARENT
+
+        local coroutine_ = coroutine.create(function(node)
+            local flash_on = {}
+            local flash_off = {}
+            while true do
+                for _,n in node:child_pairs() do
+                    table.insert(flash_on, am.tween(n, 1, { color = vec4(0.4) }))
+                    table.insert(flash_off, am.tween(n, 1, { color = vec4(0) }))
+                end
+                am.wait(am.parallel(flash_on))
+                am.wait(am.parallel(flash_off))
+                flash_on = {}
+                flash_off = {}
+            end
+        end)
+
+        tower_cursors[i] = am.group{
+            make_hex_cursor(vec2(0), get_tower_range(i), vec4(0), coroutine_),
+            tower_sprite
+        }
     end
 
     function get_tower_cursor(tower_type)
@@ -85,18 +145,42 @@ local function make_tower_node(tower_type)
 
     elseif tower_type == TOWER_TYPE.LIGHTHOUSE then
         return am.group(
-            make_tower_sprite(tower_type)
+            make_tower_sprite(tower_type),
+            am.particles2d{
+                source_pos = vec2(0, 12),
+                source_pos_var = vec2(2),
+                start_size = 1,
+                start_size_var = 1,
+                end_size = 1,
+                end_size_var = 1,
+                angle = 0,
+                angle_var = math.pi,
+                speed = 1,
+                speed_var = 2,
+                life = 10,
+                life_var = 1,
+                start_color = COLORS.WHITE,
+                start_color_var = vec4(0.1, 0.1, 0.1, 1),
+                end_color = COLORS.SUNRAY,
+                end_color_var = vec4(0.1),
+                emission_rate = 4,
+                start_particles = 4,
+                max_particles = 200
+            }
         )
     elseif tower_type == TOWER_TYPE.WALL then
         return am.circle(vec2(0), HEX_SIZE, COLORS.VERY_DARK_GRAY, 6)
 
     elseif tower_type == TOWER_TYPE.MOAT then
         return am.circle(vec2(0), HEX_SIZE, (COLORS.WATER){a=1}, 6)
+
+    elseif tower_type == TOWER_TYPE.RADAR then
+        return make_tower_sprite(tower_type)
     end
 end
 
 function can_afford_tower(money, tower_type)
-    local cost = get_tower_base_cost(tower_type)
+    local cost = get_tower_cost(tower_type)
     return (money - cost) >= 0
 end
 
@@ -109,7 +193,6 @@ local function get_tower_update_function(tower_type)
     end
 end
 
-
 function towers_on_hex(hex)
     local t = {}
     for tower_index,tower in pairs(TOWERS) do
@@ -120,16 +203,11 @@ function towers_on_hex(hex)
     return t
 end
 
-
 function tower_on_hex(hex)
-    return table.find(TOWERS, function(tower)
-        return tower.hex == hex
-    end)
+    return table.find(TOWERS, function(tower) return tower.hex == hex end)
 end
 
 function tower_is_buildable_on(hex, tile, tower_type)
-    if hex == HEX_GRID_CENTER then return false end
-
     local blocking_towers       = towers_on_hex(hex)
     local blocking_mobs         = mobs_on_hex(hex)
 
@@ -209,18 +287,22 @@ function update_tower_lighthouse(tower, tower_index)
 
         for _,m in pairs(mobs) do
             if not m.path then
-                local path, made_it = Astar(HEX_MAP, tower.hex, m.hex, grid_heuristic, grid_cost)
+                -- @TODO only attract the mob if its frame target (direction vector)
+                -- is within some angle range...? if the mob is heading directly away from the tower, then
+                -- the lighthouse shouldn't do much
+
+                local path, made_it = Astar(state.map, tower.hex, m.hex, grid_heuristic, grid_cost)
 
                 if made_it then
                     m.path = path
 
                     local area = spiral_map(tower.hex, tower.range)
                     for _,h in pairs(area) do
-                        local node = HEX_MAP[h.x][h.y].node"circle"
+                        local node = state.map[h.x][h.y].node"circle"
                         local initial_color = node.color
 
                         local d = math.distance(h, tower.hex)
-                        local target_color = COLORS.SUNRAY{ a = 1/(d/tower.range) }
+                        local target_color = COLORS.SUNRAY{ a = 1/(d/tower.range) + 0.9 }
                         node:late_action(am.series{
                             am.tween(node, 0.3, { color = target_color }),
                             am.tween(node, 0.3, { color = initial_color })
@@ -239,62 +321,29 @@ function make_and_register_tower(hex, tower_type)
         get_tower_update_function(tower_type)
     )
 
-    local need_to_regen_flow_field = true
     tower.type = tower_type
-    if tower_type == TOWER_TYPE.REDEYE then
-        tower.range          = 7
-        tower.last_shot_time = tower.TOB
-        tower.target_index   = false
+    tower.cost = get_tower_cost(tower_type)
+    tower.range = get_tower_range(tower_type)
+    tower.last_shot_time = tower.TOB -- a tower has never shot if its TOB == its last_shot_time
 
-        state.map[hex.x][hex.y].elevation = 2
+    for k,v in pairs(TOWER_SPECS[tower_type].props) do
+        tower[k] = v
+    end
 
+    if tower_type == TOWER_TYPE.REDEYE then
     elseif tower_type == TOWER_TYPE.LIGHTHOUSE then
-        tower.range = 5
         tower.perimeter = ring_map(tower.hex, tower.range)
-        --[[
-        tower.node:append(
-            am.particles2d{
-                source_pos = vec2(0, 12),
-                source_pos_var = vec2(2),
-                start_size = 1,
-                start_size_var = 1,
-                end_size = 1,
-                end_size_var = 1,
-                angle = 0,
-                angle_var = math.pi,
-                speed = 1,
-                speed_var = 2,
-                life = 10,
-                life_var = 1,
-                start_color = COLORS.WHITE,
-                start_color_var = vec4(0.1, 0.1, 0.1, 1),
-                end_color = COLORS.SUNRAY,
-                end_color_var = vec4(0.1),
-                emission_rate = 4,
-                start_particles = 4,
-                max_particles = 200
-            }
-        )
-        ]]
-        -- @HACK
-        need_to_regen_flow_field = false
 
     elseif tower_type == TOWER_TYPE.WALL then
-        state.map[hex.x][hex.y].elevation = 1
-
     elseif tower_type == TOWER_TYPE.MOAT then
-        state.map[hex.x][hex.y].elevation = -1
-    end
-
-    if need_to_regen_flow_field then
-        generate_and_apply_flow_field(state.map, HEX_GRID_CENTER, state.world)
+    elseif tower_type == TOWER_TYPE.RADAR then
     end
 
+    generate_and_apply_flow_field(state.map, HEX_GRID_CENTER, state.world)
     register_entity(TOWERS, tower)
 end
 
 function build_tower(hex, tower_type)
-    update_money(-get_tower_base_cost(tower_type))
     make_and_register_tower(hex, tower_type)
     vplay_sfx(SOUNDS.EXPLOSION4)
 end

texture.lua

@@ -1,24 +1,37 @@
 
+local function load_texture(filepath)
+    local status, texture = pcall(am.texture2d, filepath)
+
+    if status then
+        return texture
+    else
+        return am.texture2d("res/bagel.jpg")
+    end
+end
 
 TEXTURES = {
-    LOGO                = am.texture2d("res/logo.png"),
-
-    BUTTON1             = am.texture2d("res/button1.png"),
-    WIDER_BUTTON1       = am.texture2d("res/wider_button1.png"),
-    TAB_ICON            = am.texture2d("res/tab_icon.png"),
-    SATELLITE           = am.texture2d("res/satelite.png"),
-
-    TOWER_REDEYE        = am.texture2d("res/tower_redeye.png"),
-    TOWER_LIGHTHOUSE    = am.texture2d("res/tower_lighthouse.png"),
-    TOWER_WALL          = am.texture2d("res/tower_wall.png"),
-    TOWER_MOAT          = am.texture2d("res/tower_moat.png"),
-
-    TOWER_REDEYE_ICON       = am.texture2d("res/tower_redeye_icon.png"),
-    TOWER_LIGHTHOUSE_ICON   = am.texture2d("res/tower_lighthouse_icon.png"),
-    TOWER_WALL_ICON         = am.texture2d("res/tower_wall_icon.png"),
-    TOWER_MOAT_ICON         = am.texture2d("res/tower_moat_icon.png"),
-
-    MOB_BEEPER          = am.texture2d("res/mob_beeper.png"),
+    LOGO                    = load_texture("res/logo.png"),
+
+    BUTTON1                 = load_texture("res/button1.png"),
+    WIDER_BUTTON1           = load_texture("res/wider_button1.png"),
+    TAB_ICON                = load_texture("res/tab_icon.png"),
+
+    -- tower stuff
+    TOWER_WALL              = load_texture("res/tower_wall.png"),
+    TOWER_WALL_ICON         = load_texture("res/tower_wall_icon.png"),
+    TOWER_HOWITZER          = load_texture("res/tower_howitzer.png"),
+    TOWER_HOWITZER_ICON     = load_texture("res/tower_howitzer_icon.png"),
+    TOWER_REDEYE            = load_texture("res/tower_redeye.png"),
+    TOWER_REDEYE_ICON       = load_texture("res/tower_redeye_icon.png"),
+    TOWER_MOAT              = load_texture("res/tower_moat.png"),
+    TOWER_MOAT_ICON         = load_texture("res/tower_moat_icon.png"),
+    TOWER_RADAR             = load_texture("res/tower_radar.png"),
+    TOWER_RADAR_ICON        = load_texture("res/tower_radar_icon.png"),
+    TOWER_LIGHTHOUSE        = load_texture("res/tower_lighthouse.png"),
+    TOWER_LIGHTHOUSE_ICON   = load_texture("res/tower_lighthouse_icon.png"),
+
+    -- mob stuff
+    MOB_BEEPER          = load_texture("res/mob_beeper.png"),
 }
 
 function pack_texture_into_sprite(texture, width, height)