nice

src/td/render/Camera.cpp

@@ -0,0 +1,26 @@
+#include <td/render/Camera.h>
+
+#include <cmath>
+
+namespace td {
+namespace render {
+
+void Camera::UpdatePerspective(float a_AspectRatio) {
+	m_ProjectionMatrix = maths::Perspective(80.0f / 180.0f * PI, a_AspectRatio, 0.1f, 160.0f);
+	m_InvProjectionMatrix = maths::Inverse(m_ProjectionMatrix);
+}
+
+void Camera::SetCamPos(const Vec3f& a_NewPos) {
+	Vec3f front = {
+		std::cos(m_Yaw) * std::cos(m_Pitch),
+		std::sin(m_Pitch),
+		std::sin(m_Yaw) * std::cos(m_Pitch)
+	};
+
+	m_CamPos = a_NewPos;
+	m_ViewMatrix = maths::Look(m_CamPos, front, { 0, 1, 0 });
+	m_InvViewMatrix = maths::Transpose(maths::Inverse(m_ViewMatrix));  // why transpose ? I don't know
+}
+
+}  // namespace render
+}  // namespace td