Recoil and armor

1 files changed, 25 insertions, 2 deletions

diff --git a/data/materials.lua b/data/materials.lua
index 3725aa9..b88a1da 100644
--- a/data/materials.lua
+++ b/data/materials.lua
@@ -1,7 +1,7 @@
 -- Base building materials for the clone.
 --
--- The engine reads the global `Materials` array (in order). Build modes 1/2/3
--- map to entries 1/2/3. Mods under data/mods/ run AFTER this file and may use
+-- The engine reads the global `Materials` array (in order). Build modes 1-4
+-- map to entries 1-4. Mods under data/mods/ run AFTER this file and may use
 -- FindMaterial(name) to tweak these, or table.insert(Materials, ...) to add new
 -- ones. (angle_threshold is in DEGREES; the engine converts to radians.)
 
@@ -17,6 +17,7 @@ Materials =
         flammable = true, burn_rate = 15, spread_time = 2.0,   -- wood: slow burn/spread
         blocks_projectiles = true, blocks_beam = true,         -- solid: stops shells & beams
         half_width = 0.15,
+        cost_metal = 5, cost_energy = 25,               -- Forts wood 0.1 / 0.5
         color = { 1.0, 1.0, 1.0, 1.0 },                 -- white = show texture untinted
         texture = "data/textures/wood.png",
         texture_forts = "forts:materials/wood_panel.tga",
@@ -31,6 +32,7 @@ Materials =
         flammable = true, burn_rate = 22, spread_time = 0.7,   -- burns ~3x faster than wood
         blocks_projectiles = false, blocks_beam = false,       -- shells AND beams pass through (beam still burns it)
         half_width = 0.15,
+        cost_metal = 5, cost_energy = 25,
         color = { 1.0, 1.0, 1.0, 0.45 },                -- translucent
         texture = "data/textures/bgbrace.png",
         texture_forts = "forts:materials/bracing-bg.tga",
@@ -45,10 +47,31 @@ Materials =
         flammable = true, burn_rate = 25, spread_time = 1.0,   -- burns through fast
         blocks_projectiles = false, blocks_beam = false,       -- shells AND beams pass through
         half_width = 0.04,
+        cost_metal = 5, cost_energy = 25,
         color = { 0.72, 0.66, 0.55, 1.0 },   -- tan: tints the cable art, and is
                                              -- the visible rope when it is absent
         texture_forts = "forts:materials/cable.tga",
     },
+    -- Appended LAST on purpose: build modes map to this array by index, so a new
+    -- material goes on the end (key 4) rather than shifting bg-brace and rope.
+    {
+        name = "armour",                                -- the kinetic tank
+        -- Forts armor: 25% stiffer than wood, 2x the mass, HP 400, and it does
+        -- NOT catch fire (its Fire deg/s is n/a). 3 wood (450 HP) still beats
+        -- 1 armour (400 HP), so armour buys durability per strut, not per metal.
+        stiffness = 750, damping = 12, mass = 0.5,
+        max_compression = 0.90, max_expansion = 1.10,   -- same +/-10% as wood
+        angle_threshold = 30, tension_only = false,
+        min_length = 0.4, max_length = 3.0, max_link_length = 6.0,
+        hit_points = 400,
+        flammable = false, burn_rate = 0, spread_time = 0,   -- metal: never burns
+        blocks_projectiles = true, blocks_beam = true,       -- solid
+        half_width = 0.18,                              -- reads chunkier than wood
+        cost_metal = 90, cost_energy = 75,              -- Forts 1.8 / 1.5, i.e.
+                                                        -- 18x wood metal, 3x energy
+        color = { 0.62, 0.66, 0.70, 1.0 },              -- steel (also the fallback)
+        texture_forts = "forts:materials/armor.tga",
+    },
 }
 
 -- Helpers mods can use (mirrors the Forts modding API shape).