starting adding a gattler tower

main.lua

@@ -9,7 +9,6 @@
 --      -- allow saving by name
 --      -- allow loading by name
 --      -- investigate saving as lua instead, and having as a consequence a less janky map serialization
---      -- encode/decode save game data (low priority)
 --
 -- map editor
 --      -- paint terrain elevation levels
@@ -262,7 +261,6 @@ function main_scene(do_backdrop, do_logo)
         )
     end
 
-    -- @TODO add a hyperlink to an 'about' page or something
     group:append(
         am.translate(win.right - 10, win.bottom + 10)
         ^ am.text(string.format("v%s, by %s", version, author), COLORS.WHITE, "right", "bottom")
@@ -281,7 +279,7 @@ function main_scene(do_backdrop, do_logo)
                 selected = true
                 self"sprite".color = vec4(1)
                 if win:mouse_pressed("left") then
-
+                    vplay_sfx(math.random(1000000000))
                 end
             else
                 selected = false

src/game.lua

@@ -225,7 +225,7 @@ local function game_action(scene)
             state.spawning = true
 
             -- calculate spawn chance for next wave
-            state.spawn_chance = math.log(state.current_wave)/100 + 0.002
+            state.spawn_chance = math.log(state.current_wave)/90 + 0.002
 
             state.time_until_next_break = get_wave_time(state.current_wave)
         end
@@ -441,6 +441,7 @@ local function make_game_toolbelt()
     -- TOWER_TYPE, and none are missing.
     local toolbelt_options = {
         TOWER_TYPE.WALL,
+        TOWER_TYPE.GATTLER,
         TOWER_TYPE.HOWITZER,
         TOWER_TYPE.REDEYE,
         TOWER_TYPE.MOAT,

src/grid.lua

@@ -1,7 +1,7 @@
 
 do
     -- add padding, because we terraform the very outer edge and it looks ugly, so hide it
-    local padding = 2
+    local padding = 3
 
     -- the size of the grid should basically always be constant (i think),
     -- but different aspect ratios complicate this in an annoying way
@@ -72,13 +72,12 @@ function grid_cost(map, from, to)
     -- equivalent paths are found and mobs backpedal trying to decide between them
     -- (seed 2014 at time of writing has this at the bottom)
     local elevation_epsilon = HEX_GRID_MAXIMUM_ELEVATION - HEX_GRID_MINIMUM_ELEVATION + 0.2
-    local elevation_cost = math.abs(math.abs(t1.elevation)^0.5
-                                  - math.abs(t2.elevation)^0.5)
+    local elevation_cost = 2 + math.abs(t1.elevation)^0.5 - math.abs(t2.elevation)^0.5
 
     local epsilon = elevation_epsilon
     local cost = elevation_cost
 
-    return 1
+    return cost
 end
 
 function grid_neighbours(map, hex)

src/projectile.lua

@@ -172,9 +172,9 @@ local function update_projectile_laser(projectile, projectile_index)
         end
     end
 
-    -- hit the mob, delete ourselves, affect the world
+    -- hit the mob, affect the world
     do_hit_mob(closest_mob, projectile.damage, closest_mob_index)
-    delete_entity(state.projectiles, projectile_index)
+    -- delete_entity(state.projectiles, projectile_index) -- laser doesn't delete itself on mob hit
     vplay_sfx(SOUNDS.HIT1, 0.5)
 end
 

src/tower.lua

@@ -1,22 +1,22 @@
 
 TOWER_TYPE = {
     WALL       = 1,
-    HOWITZER   = 2,
-    --         = 3,
-    REDEYE     = 3,
+    GATTLER    = 2,
+    HOWITZER   = 3,
+    REDEYE     = 4,
     --         = 5,
-    MOAT       = 4,
+    MOAT       = 5,
     --         = 7,
-    RADAR      = 5,
+    RADAR      = 6,
     --         = 9,
-    LIGHTHOUSE = 6
+    LIGHTHOUSE = 7
 }
 
 local TOWER_SPECS = {
     [TOWER_TYPE.WALL] = {
         name = "Wall",
         placement_rules_text = "Place on Ground",
-        short_description = "Restricts movement",
+        short_description = "Restricts movement, similar to a mountain.",
         texture = TEXTURES.TOWER_WALL,
         icon_texture = TEXTURES.TOWER_WALL_ICON,
         cost = 10,
@@ -25,13 +25,25 @@ local TOWER_SPECS = {
         size = 0,
         height = 1,
     },
+    [TOWER_TYPE.GATTLER] = {
+        name = "Gattler",
+        placement_rules_text = "Place on Ground",
+        short_description = "Short-range, fast-fire rate single-target tower.",
+        texture = TEXTURES.TOWER_GATTLER,
+        icon_texture = TEXTURES.TOWER_GATTLER_ICON,
+        cost = 20,
+        range = 4,
+        fire_rate = 10,
+        size = 0,
+        height = 1,
+    },
     [TOWER_TYPE.HOWITZER] = {
         name = "Howitzer",
         placement_rules_text = "Place on non-Water, non-Mountain",
         short_description = "Fires area of effect artillery.",
         texture = TEXTURES.TOWER_HOWITZER,
         icon_texture = TEXTURES.TOWER_HOWITZER_ICON,
-        cost = 30,
+        cost = 50,
         range = 6,
         fire_rate = 4,
         size = 0,
@@ -40,10 +52,10 @@ local TOWER_SPECS = {
     [TOWER_TYPE.REDEYE] = {
         name = "Redeye",
         placement_rules_text = "Place on Mountains",
-        short_description = "Long-range, single-target laser tower",
+        short_description = "Long-range, penetrating laser tower",
         texture = TEXTURES.TOWER_REDEYE,
         icon_texture = TEXTURES.TOWER_REDEYE_ICON,
-        cost = 20,
+        cost = 140,
         range = 9,
         fire_rate = 1,
         size = 0,
@@ -67,7 +79,7 @@ local TOWER_SPECS = {
         short_description = "Doesn't do anything right now :(",
         texture = TEXTURES.TOWER_RADAR,
         icon_texture = TEXTURES.TOWER_RADAR_ICON,
-        cost = 20,
+        cost = 100,
         range = 0,
         fire_rate = 1,
         size = 0,
@@ -79,7 +91,7 @@ local TOWER_SPECS = {
         short_description = "Attracts nearby mobs; temporarily redirects their path",
         texture = TEXTURES.TOWER_LIGHTHOUSE,
         icon_texture = TEXTURES.TOWER_LIGHTHOUSE_ICON,
-        cost = 70,
+        cost = 150,
         range = 7,
         fire_rate = 1,
         size = 0,
@@ -126,6 +138,9 @@ function make_tower_node(tower_type)
     if tower_type == TOWER_TYPE.REDEYE then
         return make_tower_sprite(tower_type)
 
+    elseif tower_type == TOWER_TYPE.GATTLER then
+        return make_tower_sprite(tower_type)
+
     elseif tower_type == TOWER_TYPE.HOWITZER then
         return am.group{
             am.circle(vec2(0), HEX_SIZE, COLORS.VERY_DARK_GRAY, 6),
@@ -492,6 +507,9 @@ function make_and_register_tower(hex, tower_type)
     if tower.type == TOWER_TYPE.HOWITZER then
         tower.props.z = tower.height
 
+    elseif tower.type == TOWER_TYPE.GATTLER then
+        tower.props.z = tower.height
+
     elseif tower.type == TOWER_TYPE.LIGHTHOUSE then
         tower.perimeter = hex_ring_map(tower.hex, tower.range)
     end

texture.lua

@@ -38,6 +38,8 @@ TEXTURES = {
     -- tower stuff
     TOWER_WALL              = load_texture("res/tower_wall.png"),
     TOWER_WALL_ICON         = load_texture("res/tower_wall_icon.png"),
+    TOWER_GATTLER           = load_texture("res/tower_gattler.png"),
+    TOWER_GATTLER_ICON      = load_texture("res/tower_gattler_icon.png"),
     TOWER_HOWITZER          = load_texture("res/tower_howitzer.png"),
     CANNON1                 = load_texture("res/cannon1.png"),
     TOWER_HOWITZER_ICON     = load_texture("res/tower_howitzer_icon.png"),