feat(input): Add arrow key input

src/input.c

@@ -187,6 +187,28 @@ quat_t poll_input(window_t window)
 		goto end;
 	}
 
+	if (glfwGetKey((GLFWwindow *)window, GLFW_KEY_UP) == GLFW_PRESS)
+	{
+		glm_quatv(p, ANGLE, (vec3){1,0,0});
+		goto end;
+	}
+	if (glfwGetKey((GLFWwindow *)window, GLFW_KEY_DOWN) == GLFW_PRESS)
+	{
+		glm_quatv(p, -ANGLE, (vec3){1,0,0});
+		goto end;
+	}
+	if (glfwGetKey((GLFWwindow *)window, GLFW_KEY_RIGHT) == GLFW_PRESS)
+	{
+		glm_quatv(p, ANGLE, (vec3){0,1,0});
+		goto end;
+	}
+	if (glfwGetKey((GLFWwindow *)window, GLFW_KEY_LEFT) == GLFW_PRESS)
+	{
+
+		glm_quatv(p, -ANGLE, (vec3){0,1,0});
+		goto end;
+	}
+
 end:
 	glm_quat_mul(p, q, q);
 	glm_quat_rotatev(p, axis[0], axis[0]);

src/klein.c

@@ -1,5 +1,6 @@
 #include "main.h"
 
+#include <stdlib.h>
 #include <stdio.h>
 
 /*

src/mesh.c

@@ -106,6 +106,7 @@ void draw_mesh_lines(id_t shader, mesh_t p)
 {
 	struct obj *obj = p;
 
+	glLineWidth(4);
 	glUseProgram(shader);
 	glBindVertexArray(obj->vao);
 #ifndef EMSCRIPTEN