Add hotkeys for moving around

README.md

@@ -28,12 +28,11 @@ Boomer is written in Nim for Linux. Zoomer is ported to C and uses Win32 API.
 
 | Key | Action |
 |-----|--------|
-| `Escape` | Quit app |
-| `Q` | Quit app |
+| `Escape` / `Q` | Quit |
 | `0` | Reset zoom |
-| `Mouse button` | Pan |
-| `+` | Zoom in |
-| `-` | Zoom out |
 | `Scroll wheel` | Zoom +/- |
+| `+` / `-` | Zoom in/out |
+| `Mouse button` | Pan |
+| `WASD` / `Arrows` | Move around |
 | `F` | Toggle flashlight |
 | `Ctrl` + `Scroll wheel` | Change size of flashlight |

src/zoomer_main.c

@@ -6,6 +6,7 @@
 
 #define INITIAL_FL_DELTA_RADIUS 250.0f
 #define FL_DELTA_RADIUS_DECELERATION 10.0f
+#define PAN_SPEED 20.0f
 
 
 typedef struct {
@@ -203,6 +204,22 @@ void key_callback(GLFWwindow* window, int key, int scancode, int action, int mod
             camera.position = (Vector){ 0.0f, 0.0f };
             camera.velocity = (Vector){ 0.0f, 0.0f };
         break;
+        case GLFW_KEY_W:
+        case GLFW_KEY_UP:
+            camera.position.y -= PAN_SPEED;
+        break;
+        case GLFW_KEY_S:
+        case GLFW_KEY_DOWN:
+            camera.position.y += PAN_SPEED;
+        break;
+        case GLFW_KEY_A:
+        case GLFW_KEY_LEFT:
+            camera.position.x -= PAN_SPEED;
+        break;
+        case GLFW_KEY_D:
+        case GLFW_KEY_RIGHT:
+            camera.position.x += PAN_SPEED;
+        break;
         case GLFW_KEY_F:
             flashlight.is_enabled = !flashlight.is_enabled;
         break;