From b0d14b91e081096493197305a1268924e678a7e6 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Fri, 16 Oct 2020 19:37:18 +0200
Subject: [PATCH] Adding Input Example.

---
 examples/build.lua              |  3 +-
 examples/input/InputExample.cpp | 65 +++++++++++++++++++++++++++++++++
 examples/input/InputExample.h   | 34 +++++++++++++++++
 examples/input/bam.lua          |  7 ++++
 examples/input/main.cpp         | 11 ++++++
 5 files changed, 119 insertions(+), 1 deletion(-)
 create mode 100644 examples/input/InputExample.cpp
 create mode 100644 examples/input/InputExample.h
 create mode 100644 examples/input/bam.lua
 create mode 100644 examples/input/main.cpp

diff --git a/examples/build.lua b/examples/build.lua
index 5505fed..92d04a1 100644
--- a/examples/build.lua
+++ b/examples/build.lua
@@ -24,7 +24,8 @@ assets = CopyDir(PathJoin(paths.build, paths.examples), "assets")
 
 examples = BuildExamples(example_settings, {
 	"text",
-	"events"
+	"events",
+	"input"
 }, assets)
 
 PseudoTarget("examples", examples)
diff --git a/examples/input/InputExample.cpp b/examples/input/InputExample.cpp
new file mode 100644
index 0000000..0dc73e0
--- /dev/null
+++ b/examples/input/InputExample.cpp
@@ -0,0 +1,65 @@
+
+#include <Spectre/Input/InputModule.h>
+#include <Spectre/Input/Keyboard.h>
+#include <Spectre/Input/Mouse.h>
+
+#include <Spectre/Graphics/BatchRenderer2D.h>
+#include <Spectre/System/Log.h>
+#include "InputExample.h"
+
+void InputExample::init()
+{
+	m_renderer = new sp::BatchRenderer2D();
+
+	m_tux_texture.create("assets/textures/tux.png");
+
+	m_kb_sprite.setTexture(m_tux_texture);
+	m_kb_sprite.setColor(sp::Color::Green);
+	m_kb_sprite.setSize(sp::vec2f(100, 100));
+
+	m_mouse_sprite.setTexture(m_tux_texture);
+	m_mouse_sprite.setColor(sp::Color::Red);
+	m_mouse_sprite.setSize(sp::vec2f(100, 100));
+	m_mouse_sprite.setPosition(sp::vec2f(50, 50));
+
+	m_renderer->setCamera(m_camera);
+}
+
+void InputExample::update(double dt)
+{
+	sp::Keyboard* keyboard = getInput()->getKeyboard();
+	sp::Mouse* mouse = getInput()->getMouse();
+	double delta = 0.3 * dt;
+
+	// Handle keyboard input.
+	if (keyboard->isKeyDown(sp::Keyboard::Left)) {
+		m_kb_sprite.move(sp::vec2f(-delta, 0));
+	} else if (keyboard->isKeyDown(sp::Keyboard::Right)) {
+		m_kb_sprite.move(sp::vec2f( delta, 0));
+	}
+
+	if (keyboard->isKeyDown(sp::Keyboard::Up)) {
+		m_kb_sprite.move(sp::vec2f(0, -delta));
+	} else if (keyboard->isKeyDown(sp::Keyboard::Down)) {
+		m_kb_sprite.move(sp::vec2f(0, delta));
+	}
+
+	// Handle mouse input.
+	if (mouse->isButtonDown(sp::Mouse::Left)) {
+		m_mouse_sprite.setPosition(mouse->getPosition());
+	}
+}
+
+void InputExample::render()
+{
+	sp::Graphics* g = getGraphics();
+
+	g->clearBuffer();
+
+	m_renderer->begin();
+	m_renderer->submit(m_mouse_sprite);
+	m_renderer->submit(m_kb_sprite);
+	m_renderer->render();
+
+	g->swapBuffers();
+}
diff --git a/examples/input/InputExample.h b/examples/input/InputExample.h
new file mode 100644
index 0000000..e227a8d
--- /dev/null
+++ b/examples/input/InputExample.h
@@ -0,0 +1,34 @@
+
+#ifndef INPUT_EXAMPLE_H
+#define INPUT_EXAMPLE_H
+
+#include <Spectre/Scene/Camera2D.h>
+#include <Spectre/Graphics/Texture.h>
+#include <Spectre/Graphics/Sprite.h>
+#include <Spectre/Game.h>
+
+namespace sp {
+	class Renderer2D;
+}
+
+class InputExample : public sp::Game
+{
+protected :
+
+	void init();
+
+	void update(double dt);
+
+	void render();
+
+private :
+	sp::Camera2D m_camera;
+	sp::Renderer2D *m_renderer;
+
+	sp::Sprite m_kb_sprite;
+	sp::Sprite m_mouse_sprite;
+
+	sp::Texture m_tux_texture;
+};
+
+#endif /* INPUT_EXAMPLE_H*/
diff --git a/examples/input/bam.lua b/examples/input/bam.lua
new file mode 100644
index 0000000..6cf60e3
--- /dev/null
+++ b/examples/input/bam.lua
@@ -0,0 +1,7 @@
+
+local base = PathDir(ModuleFilename())
+
+src ={
+	base .. "/main.cpp",
+	base .. "/InputExample.cpp"
+}
diff --git a/examples/input/main.cpp b/examples/input/main.cpp
new file mode 100644
index 0000000..513d592
--- /dev/null
+++ b/examples/input/main.cpp
@@ -0,0 +1,11 @@
+
+#include "InputExample.h"
+
+int main(int argc, char **argv) {
+
+	InputExample game;
+
+	game.run();
+
+	return 0;
+}