From 962c18fcaccf3f53daac36654235dd3616512391 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Wed, 2 Aug 2023 20:32:46 +0200
Subject: [PATCH] examples/input/InputExample: Adding support for Event based
 mouse movement.

---
 examples/input/InputExample.cpp | 26 ++++++++++++++++++++++++++
 examples/input/InputExample.h   | 10 +++++++++-
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/examples/input/InputExample.cpp b/examples/input/InputExample.cpp
index 0dc73e0..4820bd6 100644
--- a/examples/input/InputExample.cpp
+++ b/examples/input/InputExample.cpp
@@ -2,6 +2,8 @@
 #include <Spectre/Input/InputModule.h>
 #include <Spectre/Input/Keyboard.h>
 #include <Spectre/Input/Mouse.h>
+#include <Spectre/System/MessageHandler.h>
+#include <Spectre/System/Log.h>
 
 #include <Spectre/Graphics/BatchRenderer2D.h>
 #include <Spectre/System/Log.h>
@@ -11,6 +13,8 @@ void InputExample::init()
 {
 	m_renderer = new sp::BatchRenderer2D();
 
+	getMessageHandler()->registerListener(this);
+
 	m_tux_texture.create("assets/textures/tux.png");
 
 	m_kb_sprite.setTexture(m_tux_texture);
@@ -22,6 +26,13 @@ void InputExample::init()
 	m_mouse_sprite.setSize(sp::vec2f(100, 100));
 	m_mouse_sprite.setPosition(sp::vec2f(50, 50));
 
+	m_mouse_event_sprite.setTexture(m_tux_texture);
+	m_mouse_event_sprite.setColor(sp::Color::Blue);
+	m_mouse_event_sprite.setSize(sp::vec2f(100, 100));
+	m_mouse_event_sprite.setPosition(sp::vec2f(50, 50));
+
+	m_right_mouse_down = false;
+
 	m_renderer->setCamera(m_camera);
 }
 
@@ -50,6 +61,20 @@ void InputExample::update(double dt)
 	}
 }
 
+void InputExample::onSizeChanged(sp::Display* display, int width, int height)
+{
+
+}
+
+void InputExample::onEvent(const sp::Event& event)
+{
+	if (event.type == event.MouseButton && event.mouseButton.button == sp::Mouse::Right) {
+		m_right_mouse_down = event.mouseButton.pressed;
+	} else if (event.type == event.MouseMove && m_right_mouse_down) {
+		m_mouse_event_sprite.setPosition(event.mouseMove.x, event.mouseMove.y);
+	}
+}
+
 void InputExample::render()
 {
 	sp::Graphics* g = getGraphics();
@@ -58,6 +83,7 @@ void InputExample::render()
 
 	m_renderer->begin();
 	m_renderer->submit(m_mouse_sprite);
+	m_renderer->submit(m_mouse_event_sprite);
 	m_renderer->submit(m_kb_sprite);
 	m_renderer->render();
 
diff --git a/examples/input/InputExample.h b/examples/input/InputExample.h
index e227a8d..8c95e5d 100644
--- a/examples/input/InputExample.h
+++ b/examples/input/InputExample.h
@@ -5,13 +5,14 @@
 #include <Spectre/Scene/Camera2D.h>
 #include <Spectre/Graphics/Texture.h>
 #include <Spectre/Graphics/Sprite.h>
+#include <Spectre/System/EventListener.h>
 #include <Spectre/Game.h>
 
 namespace sp {
 	class Renderer2D;
 }
 
-class InputExample : public sp::Game
+class InputExample : public sp::Game, sp::EventListener
 {
 protected :
 
@@ -21,12 +22,19 @@ protected :
 
 	void render();
 
+	void onSizeChanged(sp::Display* display, int width, int height);
+
+	void onEvent(const sp::Event& event);
+
 private :
 	sp::Camera2D m_camera;
 	sp::Renderer2D *m_renderer;
 
 	sp::Sprite m_kb_sprite;
 	sp::Sprite m_mouse_sprite;
+	sp::Sprite m_mouse_event_sprite;
+
+	bool m_right_mouse_down;
 
 	sp::Texture m_tux_texture;
 };