Added engine

src/geno/engine/GenoCamera2D.cpp

@@ -0,0 +1,71 @@
+/*******************************************************************************
+ *
+ * Copyright (c) 2018 Gnarly Narwhal
+ *
+ * -----------------------------------------------------------------------------
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files(the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ *******************************************************************************/
+
+#include "GenoCamera2D.h"
+
+GenoCamera2D::GenoCamera2D(float left, float right, float bottom, float top, float near, float far) :
+	width(right - left),
+	height(bottom - top),
+	projection(GenoMatrix4f::makeOrthographic(left, right, bottom, top, near, far)),
+	view(GenoMatrix4f::makeIdentity()),
+	projectionView(projection),
+	position(),
+	rotation(0) {}
+
+void GenoCamera2D::update() {
+	view.setTranslateXY(-position).rotateZ(-rotation);
+	projectionView = projection * view;
+}
+
+void GenoCamera2D::setProjection(float left, float right, float bottom, float top, float near, float far) {
+	projection.setOrthographic(left, right, bottom, top, near, far);
+}
+
+GenoMatrix4f GenoCamera2D::getProjection() {
+	return projection;
+}
+
+GenoMatrix4f GenoCamera2D::getView() {
+	return view;
+}
+
+GenoMatrix4f GenoCamera2D::getVPMatrix() {
+	return projectionView;
+}
+
+float GenoCamera2D::getWidth() {
+	return width;
+}
+
+float GenoCamera2D::getHeight() {
+	return height;
+}
+
+GenoVector2f GenoCamera2D::getDimensions() {
+	return { width, height };
+}
+
+GenoCamera2D::~GenoCamera2D() {}