From 55d7a4b1b9d2ae1da7cfc385694fd39a6cdb2f86 Mon Sep 17 00:00:00 2001
From: "local-model/engine-L2-grok-4.5"
 <local-model+engine-L2-grok-4.5@openkknd.agent.local>
Date: Sat, 19 Sep 2026 11:41:18 +0200
Subject: [PATCH] engine-c: Evolved bld cluster + clash ROCK/crater

---
 engine-c/src/engine.c | 64 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)

diff --git a/engine-c/src/engine.c b/engine-c/src/engine.c
index 0b96dc9..4ffc150 100644
--- a/engine-c/src/engine.c
+++ b/engine-c/src/engine.c
@@ -204,6 +204,70 @@ static void place_showcase(Game *g, Faction human, Faction enemy) {
             t->terrain = T_ROAD;
             t->scrap = 0;
         }
+
+        /* Evolved forward outpost NW of clash (visible in combat crop).
+         * Clear pad to wasteland BEFORE buildings; ROCK scars only after
+         * (T_ROCK is non-walkable and bld_can_place rejects it). */
+        {
+            int erx = ctx - 10, ery = cty - 9;
+            for (int dy = -3; dy <= 5; dy++) {
+                for (int dx = -3; dx <= 6; dx++) {
+                    int tx = erx + dx, ty = ery + dy;
+                    if (!map_in_bounds(&g->map, tx, ty)) continue;
+                    Tile *t = map_tile(&g->map, tx, ty);
+                    if (!t) continue;
+                    if (t->occupied) continue;
+                    t->terrain = T_WASTELAND;
+                    t->walkable = 1;
+                    t->scrap = 0;
+                }
+            }
+            bld_spawn(g, BT_BASE, enemy, erx, ery);
+            bld_spawn(g, BT_BASE, enemy, erx + 3, ery);
+            bld_spawn(g, BT_POWER, enemy, erx - 1, ery + 2);
+            bld_spawn(g, BT_POWER, enemy, erx + 5, ery + 2);
+            bld_spawn(g, BT_WARFACTORY, enemy, erx, ery + 3);
+            bld_spawn(g, BT_WARFACTORY, enemy, erx + 3, ery + 3);
+            bld_spawn(g, BT_RESEARCH, enemy, erx - 2, ery);
+            bld_spawn(g, BT_REFINERY, enemy, erx + 5, ery + 3);
+            bld_spawn(g, BT_TURRET, enemy, erx + 2, ery - 2);
+            bld_spawn(g, BT_TURRET, enemy, erx - 2, ery + 3);
+            bld_spawn(g, BT_TURRET, enemy, erx + 6, ery + 1);
+            bld_spawn(g, BT_WALL, enemy, erx - 2, ery - 1);
+            bld_spawn(g, BT_WALL, enemy, erx - 1, ery - 1);
+            bld_spawn(g, BT_WALL, enemy, erx + 5, ery - 1);
+            bld_spawn(g, BT_WALL, enemy, erx + 6, ery - 1);
+            bld_force_complete(g);
+
+            /* outer ROCK / crater flecks — skip occupied tiles */
+            for (int dy = -5; dy <= 7; dy++) {
+                for (int dx = -5; dx <= 8; dx++) {
+                    int tx = erx + dx, ty = ery + dy;
+                    if (!map_in_bounds(&g->map, tx, ty)) continue;
+                    Tile *t = map_tile(&g->map, tx, ty);
+                    if (!t || t->occupied) continue;
+                    int d2 = dx * dx + dy * dy;
+                    if (d2 < 16 || d2 > 55) continue;
+                    if (((dx * 7 + dy * 11) & 5) != 0) continue;
+                    t->terrain = T_ROCK;
+                    t->walkable = 0;
+                    t->scrap = 0;
+                }
+            }
+            /* crater rubble between Evolved pad and clash core */
+            for (int dy = -2; dy <= 4; dy++) {
+                for (int dx = 4; dx <= 11; dx++) {
+                    int tx = erx + dx, ty = ery + dy + 4;
+                    if (!map_in_bounds(&g->map, tx, ty)) continue;
+                    Tile *t = map_tile(&g->map, tx, ty);
+                    if (!t || t->occupied || !t->walkable) continue;
+                    if (((dx + dy) & 1) == 0) {
+                        t->terrain = T_RUBBLE;
+                        t->scrap = 0;
+                    }
+                }
+            }
+        }
     }
 
     int raid[40];