From 18e308bd03401985d160623b29e6704592e1336e Mon Sep 17 00:00:00 2001
From: zhenyan121 <3367366583@qq.com>
Date: Sun, 2 Aug 2026 13:51:01 +0800
Subject: [PATCH] feat(gameplay): add pig wander AI and refine speed physics

---
 src/gameplay/server_entity_manager.cpp |  6 +++---
 src/gameplay/systems/speed_system.cpp  | 17 +++++++++++++++--
 2 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/src/gameplay/server_entity_manager.cpp b/src/gameplay/server_entity_manager.cpp
index 222d792..c87ae82 100644
--- a/src/gameplay/server_entity_manager.cpp
+++ b/src/gameplay/server_entity_manager.cpp
@@ -20,9 +20,9 @@ void ServerEntityManager::init() {
     m_factories.try_emplace("cubed:pig", [this]() {
         BaseServerCreature c;
         c.hitbox = HitboxManager::instance().get_hitbox_id("cubed:pig");
-        return create_entity_in_factory(Entity{m_next},
-                                        EntityInfo{"cubed:pig", ""},
-                                        std::move(c), PigTag{});
+        return create_entity_in_factory(
+            Entity{m_next}, EntityInfo{"cubed:pig", ""}, std::move(c), PigTag{},
+            AIBase{}, WanderAITag{}, MoveBoost{});
     });
 }
 void ServerEntityManager::update() {
diff --git a/src/gameplay/systems/speed_system.cpp b/src/gameplay/systems/speed_system.cpp
index 5f94e7f..ae7c202 100644
--- a/src/gameplay/systems/speed_system.cpp
+++ b/src/gameplay/systems/speed_system.cpp
@@ -14,11 +14,24 @@ void SpeedSystem::update(float dt, entt::registry& registry) {
             ++moveboost.count;
             creature.velocity.value +=
                 creature.direction.value * creature.movement.acceleration;
-        } else {
+        } else if (glm::dot(creature.velocity.value, creature.velocity.value) >=
+                   0.001f) {
             creature.velocity.value -=
                 creature.direction.value * creature.movement.deceleration;
+        } else {
+            creature.velocity.value = glm::vec3(0.0f);
         }
-        creature.velocity.value.y = creature.gravity.value * dt;
+        creature.velocity.value.y += -creature.gravity.value * dt;
+        auto v_clamp = [](float& v, float max) {
+            auto temp = std::abs(v);
+            max = std::abs(max);
+            temp = std::clamp(temp, 0.0f, max);
+
+            v = temp;
+        };
+        v_clamp(creature.velocity.value.x, creature.velocity.max.x);
+        v_clamp(creature.velocity.value.y, creature.velocity.max.y);
+        v_clamp(creature.velocity.value.z, creature.velocity.max.z);
     }
 }