stanford dragon rendering

1 files changed, 42 insertions, 0 deletions

diff --git a/src/keyboard_movement_controller.cpp b/src/keyboard_movement_controller.cpp
new file mode 100644
index 0000000..6782709
--- /dev/null
+++ b/src/keyboard_movement_controller.cpp
@@ -0,0 +1,42 @@
+#include "keyboard_movement_controller.hpp"
+#include <glm/common.hpp>
+#include <glm/fwd.hpp>
+#include <glm/geometric.hpp>
+#include <limits>
+
+namespace xe {
+
+void KeyboardMovementController::moveInPlaneXZ(GLFWwindow* window, float dt, XeGameObject& gameObject) {
+  glm::vec3 rotate{0};
+  if(glfwGetKey(window, keys.lookRight) == GLFW_PRESS) rotate.y += 1.f;
+  if(glfwGetKey(window, keys.lookLeft) == GLFW_PRESS) rotate.y -= 1.f;
+  if(glfwGetKey(window, keys.lookUp) == GLFW_PRESS) rotate.x -= 1.f;
+  if(glfwGetKey(window, keys.lookDown) == GLFW_PRESS) rotate.x += 1.f;
+
+  if (glm::dot(rotate, rotate) > std::numeric_limits<float>::epsilon()) {
+    gameObject.transform.rotation += lookSpeed * dt * glm::normalize(rotate);
+  }
+
+  gameObject.transform.rotation.x = glm::clamp(gameObject.transform.rotation.x, -1.5f, 1.5f);
+  gameObject.transform.rotation.y = glm::mod(gameObject.transform.rotation.y, glm::two_pi<float>());
+
+  float yaw = gameObject.transform.rotation.y;
+  const glm::vec3 forwardDir{sin(yaw), 0.f, cos(yaw)};
+  const glm::vec3 rightDir{forwardDir.z, 0.f, -forwardDir.x};
+  const glm::vec3 upDir{0.f, 01.f, 0.f};
+
+  glm::vec3 moveDir{0};
+  if(glfwGetKey(window, keys.moveForward) == GLFW_PRESS) moveDir += forwardDir;
+  if(glfwGetKey(window, keys.moveBackward) == GLFW_PRESS) moveDir -= forwardDir;
+  if(glfwGetKey(window, keys.moveRight) == GLFW_PRESS) moveDir += rightDir;
+  if(glfwGetKey(window, keys.moveLeft) == GLFW_PRESS) moveDir -= rightDir;
+  if(glfwGetKey(window, keys.moveUp) == GLFW_PRESS) moveDir += upDir;
+  if(glfwGetKey(window, keys.moveDown) == GLFW_PRESS) moveDir -= upDir;
+
+  if (glm::dot(moveDir, moveDir) > std::numeric_limits<float>::epsilon()) {
+    gameObject.transform.translation += moveSpeed * dt * glm::normalize(moveDir);
+  }
+
+}
+
+}
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