png支持

examples/square/main.cpp

@@ -38,6 +38,47 @@ void register_square_behaviors() {
             position[0] += input.get_axis("move_left", "move_right") * move_speed * dt;
             position[1] += input.get_axis("move_up", "move_down") * move_speed * dt;
             actor.set_position(position);
+
+            if (input.is_action_just_pressed("switch_scene")) {
+                boundard::Game::getInstance().switch_scene("square_alt");
+            }
+        });
+
+    behaviors.register_init("square_alt_init", [](boundard::Actor& actor) {
+        actor.set_position({0.0F, 0.0F});
+        actor.set_facing({0.0F, 1.0F});
+        if (actor.mesh() != nullptr) {
+            actor.mesh()->set_color({0.9F, 0.3F, 0.2F, 1.0F});
+        }
+    });
+
+    behaviors.register_tick(
+        "square_alt_tick",
+        [](boundard::Actor& actor, float dt, const boundard::render::InputMap& input) {
+            const float t = actor.age();
+            actor.set_facing({
+                std::sin(t * 1.3F),
+                std::cos(t * 1.3F),
+            });
+
+            if (actor.mesh() != nullptr) {
+                actor.mesh()->set_color({
+                    0.5F + 0.5F * std::sin(t * 2.0F + 4.189F),
+                    0.5F + 0.5F * std::sin(t * 2.0F),
+                    0.5F + 0.5F * std::sin(t * 2.0F + 2.094F),
+                    1.0F,
+                });
+            }
+
+            auto position = actor.position();
+            const float move_speed = 0.7F;
+            position[0] += input.get_axis("move_left", "move_right") * move_speed * dt;
+            position[1] += input.get_axis("move_up", "move_down") * move_speed * dt;
+            actor.set_position(position);
+
+            if (input.is_action_just_pressed("switch_scene")) {
+                boundard::Game::getInstance().switch_scene("square");
+            }
         });
 }