tracks, balancing

main.lua

@@ -92,6 +92,44 @@ require "src/mob"
 require "src/projectile"
 require "src/tower"
 
+
+local sound_toggle_node_tag = "sound-on-off-icon"
+local function make_sound_toggle_node(on)
+    local sprite
+    if on then
+        sprite = pack_texture_into_sprite(TEXTURES.SOUND_ON1, 40, 30)
+    else
+        sprite = pack_texture_into_sprite(TEXTURES.SOUND_OFF, 40, 30)
+    end
+
+    return (am.translate(win.right - 30, win.top - 60) ^ sprite)
+    :tag(sound_toggle_node_tag)
+    :action(function()
+
+    end)
+end
+
+local cached_music_volume = 0.2
+local cached_sfx_volume = 0.1
+local function toggle_mute()
+    settings.sound_on = not settings.sound_on
+
+    if settings.sound_on then
+        settings.music_volume = cached_music_volume
+        settings.sfx_volume = cached_sfx_volume
+    else
+        cached_music_volume = settings.music_volume
+        cached_sfx_volume = settings.sfx_volume
+
+        settings.music_volume = 0
+        settings.sfx_volume = 0
+    end
+
+    update_music_volume(settings.music_volume)
+
+    win.scene:replace(sound_toggle_node_tag, make_sound_toggle_node(settings.sound_on))
+end
+
 -- text popup in the middle of the screen that dissapates, call from anywhere
 function alert(message, color)
     win.scene:append(
@@ -117,6 +155,8 @@ function main_action(self)
         end
     elseif win:key_pressed("f4") then
         win:close()
+    elseif win:key_pressed("m") then
+        toggle_mute()
     end
     if self"hex_backdrop" then
         self"hex_backdrop""rotate".angle = math.wrapf(self"hex_backdrop""rotate".angle - 0.005 * am.delta_time, math.pi*2)
@@ -236,21 +276,6 @@ function make_main_scene_toolbelt()
     return am.translate(pixel_offset) ^ group
 end
 
-function make_sound_toggle_node(on)
-    local sprite
-    if on then
-        sprite = pack_texture_into_sprite(TEXTURES.SOUND_ON1, 40, 30)
-    else
-        sprite = pack_texture_into_sprite(TEXTURES.SOUND_OFF, 40, 30)
-    end
-
-    return (am.translate(win.right - 30, win.top - 60) ^ sprite)
-end
-
-function toggle_mute()
-    settings.sound_on = not settings.sound_on
-    win.scene:replace("sound-on-off-icon", make_sound_toggle_node(settings.sound_on))
-end
 
 function main_scene(do_backdrop, do_logo)
     local group = am.group()

sound.lua

@@ -24,6 +24,16 @@ SOUNDS = {
     MAIN_THEME = am.track(am.load_audio("res/maintheme.ogg"), true, 1, settings.music_volume)
 }
 
+-- doesn't get unset when a track is 'done' playing automatically
+CURRENT_TRACK = nil
+
+function update_sfx_volume() end
+function update_music_volume(volume)
+    if CURRENT_TRACK then
+        CURRENT_TRACK.volume = math.clamp(volume, 0, 1)
+    end
+end
+
 -- play sound effect with variable pitch
 function vplay_sfx(sound, pitch_range)
     local pitch = (math.random() + 0.5)/(pitch_range and 1/pitch_range or 2)
@@ -34,7 +44,8 @@ function play_sfx(sound)
     win.scene:action(am.play(sound, false, 1, settings.sfx_volume))
 end
 
-function play_track(track)
-    win.scene:action(am.play(track))
+function play_track(track, loop)
+    CURRENT_TRACK = track
+    win.scene:action(am.play(track, loop or true))
 end
 

src/mob.lua

@@ -36,7 +36,7 @@ local function grow_mob_speed(mob_type, spec_speed, time)
     return spec_speed + math.log(state.current_wave + 1)
 end
 local function grow_mob_bounty(mob_type, spec_bounty, time)
-    return spec_bounty + math.pow(state.current_wave - 1, 2)
+    return spec_bounty + (state.current_wave - 1) * 2
 end
 
 function mobs_on_hex(hex)

src/projectile.lua

@@ -18,7 +18,7 @@ local PROJECTILE_SPECS = {
     },
     [PROJECTILE_TYPE.BULLET] = {
         velocity = 25,
-        damage = 5,
+        damage = 4,
         hitbox_radius = 10
     }
 }