From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 12 Nov 2022 16:07:07 +0000 (+0200)
Subject: Add playfield boundaries to Bassteroids
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=391f1ab3c7ca52a9990f516f4cdd7094f60350df;p=libs%2Fgame.git

Add playfield boundaries to Bassteroids
---

diff --git a/examples/bassteroids/source/bassteroids.cpp b/examples/bassteroids/source/bassteroids.cpp
index 1c0ab66..4ea600f 100644
--- a/examples/bassteroids/source/bassteroids.cpp
+++ b/examples/bassteroids/source/bassteroids.cpp
@@ -10,6 +10,8 @@ using namespace Msp;
 
 Bassteroids::Bassteroids(int, char **):
 	game_stage(director.create_stage()),
+	pf_setup({ .size={ 80, 45 }}),
+	playfield(game_stage.get_root(), pf_setup),
 	cam_setup({ .field_of_view_y=Geometry::Angle<float>::zero(), .size={ 80, 45 }, .near_clip=-30, .far_clip=30, .sequence_name="space.seq" }),
 	cam_entity(game_stage.get_root(), Game::TransformValues()),
 	camera(const_cast<const Game::Owned<Game::Entity> &>(cam_entity), cam_setup)
diff --git a/examples/bassteroids/source/bassteroids.h b/examples/bassteroids/source/bassteroids.h
index 9528c31..43a690a 100644
--- a/examples/bassteroids/source/bassteroids.h
+++ b/examples/bassteroids/source/bassteroids.h
@@ -6,6 +6,7 @@
 #include <msp/game/resources.h>
 #include <msp/gameview/application.h>
 #include <msp/gl/resources.h>
+#include "playfield.h"
 
 class BassteroidsResources: public Msp::GL::Resources, public Msp::Game::ApplicationResources
 { };
@@ -15,6 +16,9 @@ class Bassteroids: public Msp::GameView::Application<Bassteroids, BassteroidsRes
 private:
 	Msp::Game::Stage &game_stage;
 
+	PlayfieldSetup pf_setup;
+	Msp::Game::Owned<Playfield> playfield;
+
 	Msp::Game::CameraSetup cam_setup;
 	Msp::Game::Owned<Msp::Game::Entity> cam_entity;
 	Msp::Game::Owned<Msp::Game::Camera> camera;
diff --git a/examples/bassteroids/source/gamecontroller.cpp b/examples/bassteroids/source/gamecontroller.cpp
index eae5e2d..d39b343 100644
--- a/examples/bassteroids/source/gamecontroller.cpp
+++ b/examples/bassteroids/source/gamecontroller.cpp
@@ -19,11 +19,14 @@ void GameController::tick(Time::TimeDelta)
 	case LEVEL_START:
 		defer([this]{
 			uniform_real_distribution<float> sdist(-1, 1);
+			uniform_real_distribution<float> udist(0, 1);
 			for(unsigned i=0; i<level+2; ++i)
 			{
 				asteroids.emplace_back(stage.get_root(), asteroid_setup);
 				asteroids.back()->get_transform()->set_position({ sdist(rng)*32, sdist(rng)*18, 0.0f });
-				asteroids.back()->get_body()->set_velocity(asteroids.back()->get_transform()->get_position().slice<2>(0)*-0.1f);
+				Geometry::Angle<float> angle = Geometry::Angle<float>::from_turns(udist(rng));
+				float speed = udist(rng)*7;
+				asteroids.back()->get_body()->set_velocity({ cos(angle)*speed, sin(angle)*speed });
 			}
 			state = PLAYING;
 		});
diff --git a/examples/bassteroids/source/physicalentity.cpp b/examples/bassteroids/source/physicalentity.cpp
index 585eb34..85ff0bd 100644
--- a/examples/bassteroids/source/physicalentity.cpp
+++ b/examples/bassteroids/source/physicalentity.cpp
@@ -1,10 +1,9 @@
 #include "physicalentity.h"
-#include <msp/game/transform.h>
 
 using namespace Msp;
 
-PhysicalEntity::PhysicalEntity(Game::Handle<Game::Entity> p, const Setup &s):
-	Entity(p, Game::TransformValues()),
+PhysicalEntity::PhysicalEntity(Game::Handle<Game::Entity> p, const Setup &s, const Game::TransformValues &tv):
+	Entity(p, tv),
 	collider(*this, s.collider)
 {
 	if(!s.fixture)
diff --git a/examples/bassteroids/source/physicalentity.h b/examples/bassteroids/source/physicalentity.h
index a0cca37..8f2a57f 100644
--- a/examples/bassteroids/source/physicalentity.h
+++ b/examples/bassteroids/source/physicalentity.h
@@ -2,6 +2,7 @@
 #define PHYSICALENTITY_H_
 
 #include <msp/game/entity.h>
+#include <msp/game/transform.h>
 #include "rigidbody.h"
 #include "collider.h"
 
@@ -22,7 +23,7 @@ protected:
 	Msp::Game::Owned<Collider> collider;
 
 public:
-	PhysicalEntity(Msp::Game::Handle<Msp::Game::Entity>, const Setup &);
+	PhysicalEntity(Msp::Game::Handle<Msp::Game::Entity>, const Setup &, const Msp::Game::TransformValues & = Msp::Game::TransformValues());
 
 	bool is_fixture() const { return !body; }
 	Msp::Game::Handle<RigidBody> get_body() const { return body; }
diff --git a/examples/bassteroids/source/physics.cpp b/examples/bassteroids/source/physics.cpp
index 5d4c242..db8e494 100644
--- a/examples/bassteroids/source/physics.cpp
+++ b/examples/bassteroids/source/physics.cpp
@@ -11,6 +11,8 @@ Physics::Physics(Game::Stage &s):
 	observer(stage.get_event_bus())
 {
 	observer.observe<Game::Events::EntityCreated>([this](auto &e){ entity_added(e); });
+
+	stage.synthesize_initial_events(observer);
 }
 
 void Physics::entity_added(const Game::Events::EntityCreated &e)
diff --git a/examples/bassteroids/source/playfield.cpp b/examples/bassteroids/source/playfield.cpp
new file mode 100644
index 0000000..8c6cc6c
--- /dev/null
+++ b/examples/bassteroids/source/playfield.cpp
@@ -0,0 +1,19 @@
+#include "playfield.h"
+#include <msp/game/transform.h>
+
+using namespace Msp;
+
+Playfield::Playfield(Game::Handle<Game::Entity> p, const Setup &s):
+	Entity(p, NO_TRANSFORM),
+	setup(s),
+	left(*this, LinAl::Vector<float, 2>(-setup.size.x/2-0.5f, 0.0f), LinAl::Vector<float, 2>(1.0f, setup.size.y+2.0f)),
+	right(*this, LinAl::Vector<float, 2>(setup.size.x/2+0.5f, 0.0f), LinAl::Vector<float, 2>(1.0f, setup.size.y+2.0f)),
+	bottom(*this, LinAl::Vector<float, 2>(0.0f, -setup.size.y/2-0.5f), LinAl::Vector<float, 2>(setup.size.x+2.0f, 1.0f)),
+	top(*this, LinAl::Vector<float, 2>(0.0f, setup.size.y/2+0.5f), LinAl::Vector<float, 2>(setup.size.x+2.0f, 1.0f))
+{ }
+
+
+Playfield::Border::Border(Playfield &f, LinAl::Vector<float, 2> p, LinAl::Vector<float, 2> s):
+	setup{ .fixture=true, .body={}, .collider={ .type=ColliderType::BOX, .size=s }},
+	entity(f, setup, compose(p, 0.0f))
+{ }
diff --git a/examples/bassteroids/source/playfield.h b/examples/bassteroids/source/playfield.h
new file mode 100644
index 0000000..10596e9
--- /dev/null
+++ b/examples/bassteroids/source/playfield.h
@@ -0,0 +1,36 @@
+#ifndef PLAYFIELD_H_
+#define PLAYFIELD_H_
+
+#include <msp/game/entity.h>
+#include "physicalentity.h"
+
+struct PlayfieldSetup
+{
+	Msp::LinAl::Vector<float, 2> size;
+};
+
+class Playfield: public Msp::Game::Entity
+{
+public:
+	using Setup = PlayfieldSetup;
+
+private:
+	struct Border
+	{
+		PhysicalSetup setup;
+		Msp::Game::Owned<PhysicalEntity> entity;
+
+		Border(Playfield &, Msp::LinAl::Vector<float, 2>, Msp::LinAl::Vector<float, 2>);
+	};
+
+	const Setup &setup;
+	Border left;
+	Border right;
+	Border bottom;
+	Border top;
+
+public:
+	Playfield(Msp::Game::Handle<Msp::Game::Entity>, const Setup &);
+};
+
+#endif