From e0df3f13358401a6521143409f2e02da8558a136 Mon Sep 17 00:00:00 2001
From: Simon Brodtmann <github@accounts.brodtmann.info>
Date: Fri, 6 Jun 2025 14:25:44 +0200
Subject: [PATCH] Add flames and explosions to transition

---
 lignumis/scripts/to-nauvis.lua | 72 +++++++++++++++++++++++++++++++---
 1 file changed, 67 insertions(+), 5 deletions(-)

diff --git a/lignumis/scripts/to-nauvis.lua b/lignumis/scripts/to-nauvis.lua
index 3985a75..27cffdd 100644
--- a/lignumis/scripts/to-nauvis.lua
+++ b/lignumis/scripts/to-nauvis.lua
@@ -84,6 +84,56 @@ local function explode_silo(silo)
     silo.die()
 end
 
+
+local get_random_position = function(box, x_scale, y_scale)
+    x_scale = x_scale or 1
+    y_scale = y_scale or 1
+    local x1 = box.left_top.x
+    local y1 = box.left_top.y
+    local x2 = box.right_bottom.x
+    local y2 = box.right_bottom.y
+    local x = ((x2 - x1) * x_scale * (math.random() - 0.5)) + ((x1 + x2) / 2)
+    local y = ((y2 - y1) * y_scale * (math.random() - 0.5)) + ((y1 + y2) / 2)
+    return { x, y }
+end
+
+
+local function burn_silo(silo)
+    local surface = silo.surface
+    local box = silo.bounding_box
+    for k = 1, 6 do
+        local position = get_random_position(box, 0.8, 0.5)
+        surface.create_entity
+        {
+            name = "crash-site-fire-flame",
+            position = position
+        }
+        local fire = surface.create_entity
+            {
+                name = "crash-site-fire-smoke",
+                position = position
+            }
+        fire.time_to_live = math.random(59 * 9, 59 * 14 - 1)
+        fire.time_to_next_effect = math.random(59 * 2)
+    end
+end
+
+
+local function pre_explode_silo(silo)
+    local surface = silo.surface
+    local box = silo.bounding_box
+    for k = 1, 3 do
+        local explosions = surface.create_entity
+            {
+                name = "crash-site-explosion-smoke",
+                position = get_random_position(box, 0.8, 0.5)
+            }
+        explosions.time_to_live = math.random(59 * 6, 59 * 11 - 1)
+        explosions.time_to_next_effect = math.random(59 * 3)
+    end
+end
+
+
 ToNauvis.events[defines.events.on_rocket_launch_ordered] = function(event)
     if not event.rocket_silo or event.rocket_silo.name ~= "provisional-rocket-silo" then return end
 
@@ -103,18 +153,30 @@ ToNauvis.events[defines.events.on_rocket_launch_ordered] = function(event)
         end
     end
 
-    local transit_tick = game.tick + (26 * 59)
-    local explode_tick = game.tick + (31 * 59)
+    local burn_tick = game.tick + (14 * 59)
+    local pre_explode_tick = game.tick + (17 * 59)
+    local transit_tick = game.tick + (23 * 59)
+    local explode_tick = game.tick + (28 * 59)
 
-    script.on_nth_tick(explode_tick, function()
-        explode_silo(event.rocket_silo)
-        script.on_nth_tick(explode_tick, nil)
+    script.on_nth_tick(burn_tick, function()
+        burn_silo(event.rocket_silo)
+        script.on_nth_tick(burn_tick, nil)
+    end)
+
+    script.on_nth_tick(pre_explode_tick, function()
+        pre_explode_silo(event.rocket_silo)
+        script.on_nth_tick(pre_explode_tick, nil)
     end)
 
     script.on_nth_tick(transit_tick, function()
         transit_player(player.index)
         script.on_nth_tick(transit_tick, nil)
     end)
+
+    script.on_nth_tick(explode_tick, function()
+        explode_silo(event.rocket_silo)
+        script.on_nth_tick(explode_tick, nil)
+    end)
 end
 
 ToNauvis.events[defines.events.on_post_entity_died] = function(event)