Make it possible to shoot bullets in Bassteroids

[libs/game.git] / examples / bassteroids / source / playercontroller.cpp

diff --git a/examples/bassteroids/source/playercontroller.cpp b/examples/bassteroids/source/playercontroller.cpp
index cd7e72ad3a53f191a36b23921466d1834dbd985f..65a879d2447727277ce4da16c4b4e1f822f57aef 100644 (file)
--- a/examples/bassteroids/source/playercontroller.cpp
+++ b/examples/bassteroids/source/playercontroller.cpp
@@ -10,7 +10,9 @@ PlayerController::PlayerController(Game::Stage &s):
        System(s),
        player_setup{ .physical={ .body={ .mass=1, .moment_of_inertia=0.8f }, .collider={ .type=ColliderType::CIRCLE, .radius=0.8f }},
                .mesh={ .object_name="Bass guitar.object" },
-               .speed=12.0f, .turn_rate=4.71f }
+               .speed=12.0f, .turn_rate=4.71f },
+       bullet_setup{ .physical={ .body={ .mass=0.05f, .moment_of_inertia=0.04f }, .collider={ .type=ColliderType::CIRCLE, .radius=0.2f }},
+               .mesh={ .object_name="Quaver.object" }}
 { }
 
 void PlayerController::set_controls(Controls *c)
@@ -46,4 +48,23 @@ void PlayerController::tick(Time::TimeDelta dt)
        Geometry::Angle<float> angular_speed = abs(angular_vel);
        if(abs(angular_speed.radians())>1e-5)
                body->add_torque(angular_vel.radians()*-min(angular_speed.radians()+setup.turn_rate/angular_speed.radians(), 1.0f/dt_secs));
+
+       if(controls->fire.was_pressed())
+               fire();
+
+       controls->reset_edges();
+}
+
+void PlayerController::fire()
+{
+       Game::Handle<Game::Transform> player_tf = player_ship->get_transform();
+       Game::Handle<RigidBody> player_body = player_ship->get_body();
+
+       bullets.emplace_back(stage.get_root(), bullet_setup);
+       Game::Handle<Bullet> bullet = bullets.back();
+       Game::Handle<Game::Transform> bullet_tf = bullet->get_transform();
+       bullet_tf->set_position((player_tf->get_world_matrix()*LinAl::Vector<float, 4>(2.0f, 0.0f, 0.0f, 1.0f)).slice<3>(0));
+       bullet_tf->set_rotation(player_tf->get_rotation()*Geometry::Quaternion<float>::rotation(Geometry::Angle<float>::from_degrees(10), LinAl::Vector<float, 3>(0.0f, 0.0f, 1.0f)));
+       Game::Handle<RigidBody> bullet_body = bullet->get_body();
+       bullet_body->set_velocity(player_body->get_velocity()+(player_tf->get_world_matrix()*LinAl::Vector<float, 4>(20.0f, 0.0f, 0.0f, 0.0f)).slice<2>(0));
 }