diff --git a/game.c b/game.c
index 35e7fa7..50e3be8 100644
--- a/game.c
+++ b/game.c
@@ -14,7 +14,7 @@
 #define MAX(a,b) (((a)>(b))?(a):(b))
 #define CLAMP(x,a,b) (MIN(MAX(x,a),b))
 
-size_t mouse_x = 0, mouse_y = 0;
+int mouse_x = 0, mouse_y = 0;
 
 struct bricks bricks = {0};
 
@@ -27,6 +27,10 @@ bool has_active = 0;
 struct brick preview[256] = {0};
 size_t preview_count = 0;
 
+int camera_x = 0;
+int camera_y = 0;
+bool is_dragging = 0;
+
 #define DIRECTIONS 6
 struct eye direction[DIRECTIONS] = {
   {.x =  0, .y = -1},
@@ -82,8 +86,7 @@ void get_prewiews() {
 void print_brick(struct brick b) {
   struct eye *eyes = (struct eye*) &b;
   for (size_t i = 0; i < 2; i++) {
-    printf("{.x = %zu, .y =   %zu, .val = %zu, .vertical = %zu}" , eyes[i].x, eyes[i].y, eyes[i].val, eyes[i].vertical);
-  }
+    printf("{.x = %d, .y =   %d, .val = %d, .vertical = %d}" , eyes[i].x, eyes[i].y, eyes[i].val, eyes[i].vertical); }
   printf("\n");
 }
 
@@ -111,6 +114,10 @@ void key_callback(int key, int scancode, int action, int mods) {
 }
 
 void cursor_position_callback(int xpos, int ypos) {
+  if (is_dragging) {
+    camera_x += xpos - mouse_x;
+    camera_y += ypos - mouse_y;
+  }
   mouse_x = xpos;
   mouse_y = ypos;
 }
@@ -118,6 +125,10 @@ void cursor_position_callback(int xpos, int ypos) {
 void mouse_button_callback(int button, int action, int mods) {
   (void) mods;
 
+  if (button == GLFW_MOUSE_BUTTON_RIGHT) {
+    is_dragging = (action == GLFW_PRESS);
+  }
+
   if (button == GLFW_MOUSE_BUTTON_LEFT && action == GLFW_PRESS) {
     // pick up brick from hand
     for (size_t i = 0; i < hand_count; i++) {
@@ -150,8 +161,8 @@ void mouse_button_callback(int button, int action, int mods) {
       for (size_t i = 0; i < preview_count; i++) {
         int active_x = active.front.x + mouse_x + DOMINO_WIDTH / 2;
         int active_y = active.front.y + mouse_y + DOMINO_HEIGHT / 2;
-        int preview_x = preview[i].front.x * EYE_SIZE + DOMINO_WIDTH / 2;
-        int preview_y = preview[i].front.y * EYE_SIZE + DOMINO_HEIGHT / 2;
+        int preview_x = camera_x + preview[i].front.x * EYE_SIZE + DOMINO_WIDTH / 2;
+        int preview_y = camera_y + preview[i].front.y * EYE_SIZE + DOMINO_HEIGHT / 2;
         preview[i].front.val = (active_x - preview_x) * (active_x - preview_x) + (active_y - preview_y) * (active_y - preview_y);
         if (min_dist == (size_t)-1) min_dist = 1;
         if (preview[i].front.val < preview[min_dist].front.val) min_dist = i;
@@ -252,11 +263,12 @@ void render(struct image canvas) {
   // domino playground
   for (size_t i = 0; i < bricks.count; i++) {
     struct brick *b = &bricks.items.brick[i];
-    draw(canvas, red_and_peach_dominoes[b->back.val][b->front.val], b->front.x * EYE_SIZE, b->front.y * EYE_SIZE, b->front.vertical);
+    draw(canvas, red_and_peach_dominoes[b->back.val][b->front.val], camera_x + b->front.x * EYE_SIZE, camera_y + b->front.y * EYE_SIZE, b->front.vertical);
   }
 
+  // preview
   for (size_t i = 0; i < preview_count; i++) {
-    draw(canvas, white_and_blue_dominoes[active.back.val][active.front.val], preview[i].front.x * EYE_SIZE, preview[i].front.y * EYE_SIZE, active.front.vertical);
+    draw(canvas, white_and_blue_dominoes[active.back.val][active.front.val], camera_x + preview[i].front.x * EYE_SIZE, camera_y + preview[i].front.y * EYE_SIZE, active.front.vertical);
   }
 
   // hand