Initial work on rendering sprites to screen

1 files changed, 33 insertions, 0 deletions

diff --git a/source/Camera.cpp b/source/Camera.cpp
new file mode 100644
index 0000000..90acd8f
--- /dev/null
+++ b/source/Camera.cpp
@@ -0,0 +1,33 @@
+#include "Camera.hpp"
+
+#include "AppConfig.hpp"
+
+#include <glm/gtc/matrix_transform.hpp>
+
+void Camera::Move(glm::vec3 pos) {
+	this->pos = pos;
+}
+
+void Camera::LookAt(glm::vec3 pos) {
+	this->lookAt = pos;
+}
+
+void Camera::SetHasPerspective(bool perspective) {
+	this->perspective = perspective;
+}
+
+glm::mat4 Camera::CalcViewMatrix() const {
+	return glm::lookAt(pos, lookAt, glm::vec3(0, 1, 0));
+}
+
+glm::mat4 Camera::CalcProjectionMatrix() const {
+	if (perspective) {
+		return glm::perspective(90.0f, AppConfig::mainWindowAspectRatio, 0.1f, 1000.0f);
+	} else {
+		return glm::ortho(
+			pos.x - AppConfig::mainWidnowWidth / 2,
+			pos.x + AppConfig::mainWidnowWidth / 2,
+			pos.y - AppConfig::mainWindowHeight / 2,
+			pos.y + AppConfig::mainWindowHeight / 2);
+	}
+}