带宽测试

src/pingpong_paddle.cpp

@@ -1,6 +1,7 @@
 #include "pingpong_paddle.h"
 
 #include <godot_cpp/core/class_db.hpp>
+#include <godot_cpp/variant/utility_functions.hpp>
 #include <godot_cpp/classes/input.hpp>
 #include <godot_cpp/classes/engine.hpp>
 #include <godot_cpp/classes/node.hpp>
@@ -9,8 +10,13 @@
 
 using namespace godot;
 
+// ═══════════════════════════════════════════════════════
+// 视觉颜色常量 — 以后替换素材时删除本段
+// ═══════════════════════════════════════════════════════
+static const Color PADDLE_PLAYER_COLOR = Color(0.2f, 0.7f, 1.0f);
+static const Color PADDLE_AI_COLOR = Color(1.0f, 0.35f, 0.25f);
+
 void PingPongPaddle::_bind_methods() {
-    // 属性
     ClassDB::bind_method(D_METHOD("get_speed"), &PingPongPaddle::get_speed);
     ClassDB::bind_method(D_METHOD("set_speed", "value"), &PingPongPaddle::set_speed);
     ClassDB::add_property("PingPongPaddle", PropertyInfo(Variant::FLOAT, "speed"), "set_speed", "get_speed");
@@ -27,14 +33,33 @@ void PingPongPaddle::_bind_methods() {
 PingPongPaddle::PingPongPaddle() {
     speed = 350.0f;
     is_player = true;
+    ai_reaction_counter = 0.0f;
+    ai_target_y = 0.0f;
 }
 
 PingPongPaddle::~PingPongPaddle() {
 }
 
+// ═══════════════════════════════════════════════════════
+// 视觉层 — 圆角球拍（几何体占位）
+// 替换方法：删除本方法 → 添加 Sprite2D 子节点
+// ═══════════════════════════════════════════════════════
 void PingPongPaddle::_draw() {
-    // 画一个白色矩形表示球拍
-    draw_rect(Rect2(Vector2(-10.0f, -60.0f), Vector2(20.0f, 120.0f)), Color(1.0f, 1.0f, 1.0f));
+    Color color = is_player ? PADDLE_PLAYER_COLOR : PADDLE_AI_COLOR;
+    float hw = PADDLE_WIDTH / 2.0f;
+    float hh = PADDLE_HEIGHT / 2.0f;
+    float cr = PADDLE_CORNER_RADIUS;
+
+    // 主体矩形
+    draw_rect(Rect2(Vector2(-hw, -hh + cr), Vector2(PADDLE_WIDTH, PADDLE_HEIGHT - cr * 2.0f)), color);
+    // 上下两端矩形
+    draw_rect(Rect2(Vector2(-hw + cr, -hh), Vector2(PADDLE_WIDTH - cr * 2.0f, cr)), color);
+    draw_rect(Rect2(Vector2(-hw + cr, hh - cr), Vector2(PADDLE_WIDTH - cr * 2.0f, cr)), color);
+    // 四角圆形
+    draw_circle(Vector2(-hw + cr, -hh + cr), cr, color);
+    draw_circle(Vector2(hw - cr, -hh + cr), cr, color);
+    draw_circle(Vector2(-hw + cr, hh - cr), cr, color);
+    draw_circle(Vector2(hw - cr, hh - cr), cr, color);
 }
 
 void PingPongPaddle::_physics_process(double delta) {
@@ -42,7 +67,7 @@ void PingPongPaddle::_physics_process(double delta) {
     float move_amount = 0.0f;
 
     if (is_player) {
-        // 玩家控制：读取上下输入
+        // ── 玩家控制 ──
         Input *input = Input::get_singleton();
         if (input->is_action_pressed("ui_up")) {
             move_amount = -1.0f;
@@ -50,17 +75,29 @@ void PingPongPaddle::_physics_process(double delta) {
             move_amount = 1.0f;
         }
     } else {
-        // AI 控制：追踪球的位置
+        // ── AI 控制（有延迟和不精确性）──
         if (!ball_path.is_empty()) {
             Node *node = get_node_or_null(ball_path);
             if (node) {
                 Node2D *ball = Object::cast_to<Node2D>(node);
                 if (ball) {
                     float ball_y = ball->get_global_position().y;
+
+                    // 反应延迟计数器
+                    ai_reaction_counter -= (float)delta;
+                    if (ai_reaction_counter <= 0.0f) {
+                        // 更新目标位置（加入随机偏移）
+                        float noise = (UtilityFunctions::randf() - 0.5f) * 2.0f * AI_TRACKING_NOISE;
+                        ai_target_y = ball_y + noise;
+                        // 随机重置延迟
+                        ai_reaction_counter = AI_REACTION_DELAY_MIN +
+                            UtilityFunctions::randf() * (AI_REACTION_DELAY_MAX - AI_REACTION_DELAY_MIN);
+                    }
+
                     float paddle_y = get_global_position().y;
-                    if (ball_y < paddle_y - 20.0f) {
+                    if (ai_target_y < paddle_y - 15.0f) {
                         move_amount = -1.0f;
-                    } else if (ball_y > paddle_y + 20.0f) {
+                    } else if (ai_target_y > paddle_y + 15.0f) {
                         move_amount = 1.0f;
                     }
                 }
@@ -68,11 +105,12 @@ void PingPongPaddle::_physics_process(double delta) {
         }
     }
 
-    // 移动
-    Vector2 velocity = Vector2(0.0f, move_amount * speed * (float)delta);
+    // 移动（AI 速度略慢）
+    float effective_speed = is_player ? speed : speed * AI_SPEED_FACTOR;
+    Vector2 velocity = Vector2(0.0f, move_amount * effective_speed * (float)delta);
     move_and_collide(velocity);
 
-    // 限制移动范围（不超出屏幕）
+    // 限制移动范围
     Viewport *viewport = get_viewport();
     if (viewport) {
         Vector2 screen_size = viewport->get_visible_rect().size;