Initial commit

source/Graphics/Sprite.cpp

@@ -0,0 +1,111 @@
+
+#include <Spectre/Graphics/Texture.h>
+#include <Spectre/Graphics/Sprite.h>
+
+Sprite::Sprite() :
+m_texture	(NULL)
+{
+	unsigned short indices[6] = {
+		0, 1, 2, 2, 3, 0
+	};
+
+	m_indicies.assign(indices, indices + 6);
+	m_vertices.resize(4);
+
+	setSize(vec2f(1.0f, 1.0f));
+	setColor(Color(255, 255, 255));
+
+	// Texcords
+	m_vertices[0].uv = Vector2f( 0.0f,  0.0f);
+	m_vertices[1].uv = Vector2f( 0.0f,  1.0f);
+	m_vertices[2].uv = Vector2f( 1.0f,  1.0f);
+	m_vertices[3].uv = Vector2f( 1.0f,  0.0f);
+}
+
+Sprite::Sprite(const vec2f& pos, const vec2f& size) :
+m_texture	(NULL)
+{
+	unsigned short indices[6] = {
+		0, 1, 2, 2, 3, 0
+	};
+
+	m_indicies.assign(indices, indices + 6);
+	m_vertices.resize(4);
+
+	setPosition(pos);
+	setSize(size);
+	setColor(Color(255, 255, 255));
+
+	m_vertices[0].uv = Vector2f( 0.0f,  1.0f);
+	m_vertices[1].uv = Vector2f( 0.0f,  0.0f);
+	m_vertices[2].uv = Vector2f( 1.0f,  0.0f);
+	m_vertices[3].uv = Vector2f( 1.0f,  1.0f);
+}
+
+void Sprite::init()
+{
+}
+
+void Sprite::setSize(vec2f size)
+{
+	if (size < vec2f(0.0, 0.0f)) {
+		size = vec2f(0.0, 0.0f);
+	}
+
+	m_vertices[0].position = vec2f(0.0f,	0.0f);
+	m_vertices[1].position = vec2f(0.0f,	size.y);
+	m_vertices[2].position = vec2f(size.x,	size.y);
+	m_vertices[3].position = vec2f(size.x,  0.0f);
+}
+
+void Sprite::setColor(const Color& color)
+{
+	m_vertices[0].color = color.toRGBf();
+	m_vertices[1].color = m_vertices[0].color;
+	m_vertices[2].color = m_vertices[0].color;
+	m_vertices[3].color = m_vertices[0].color;
+}
+
+void Sprite::setTexture(const Texture& texture)
+{
+	m_texture = &texture;
+}
+
+void Sprite::setTextureCoords(const vec2u& pos, const vec2u& size)
+{
+	// No texture, nothing to do.
+	if (!m_texture) {
+		return;
+	}
+
+	Vector2f tex_size = Vector2f(m_texture->getSize());
+
+	float left	= pos.x / tex_size.x;
+	float right	= left + (size.x / tex_size.x);
+	float top	= pos.y / tex_size.y;
+	float bottom	= top + (size.y / tex_size.y); 
+
+	m_vertices[0].uv = Vector2f(left , top);
+	m_vertices[1].uv = Vector2f(left , bottom);
+	m_vertices[2].uv = Vector2f(right, bottom);
+	m_vertices[3].uv = Vector2f(right, top);
+}
+
+const Texture* Sprite::getTexture() const
+{
+	return m_texture;
+}
+
+const std::vector<Vertex2D>& Sprite::getVertices() const
+{
+	return m_vertices;
+}
+
+const std::vector<unsigned short>& Sprite::getIndices() const
+{
+	return m_indicies;
+}
+
+void Sprite::updateGeometry()
+{
+}