allow for animated moves

include/llmr/map/map.hpp

@@ -32,7 +32,7 @@ public:
     void tileFailed(std::shared_ptr<Tile> tile);
 
     /* position */
-    void moveBy(double dx, double dy);
+    void moveBy(double dx, double dy, double duration = 0);
     // void setLonLat(double lon, double lat);
     void resetPosition();
 

include/llmr/map/transform.hpp

@@ -21,7 +21,7 @@ public:
     void updateAnimations();
 
     // Relative changes
-    void moveBy(double dx, double dy);
+    void moveBy(double dx, double dy, double duration = 0);
     void scaleBy(double ds, double cx = -1, double cy = -1, double duration = 0);
     void rotateBy(double cx, double cy, double sx, double sy, double ex, double ey);
 

src/map/map.cpp

@@ -57,8 +57,8 @@ void Map::resize(uint32_t width, uint32_t height, uint32_t fb_width, uint32_t fb
     update();
 }
 
-void Map::moveBy(double dx, double dy) {
-    transform.moveBy(dx, dy);
+void Map::moveBy(double dx, double dy, double duration) {
+    transform.moveBy(dx, dy, duration);
     update();
 
     transform.getLonLat(settings.longitude, settings.latitude);

src/map/transform.cpp

@@ -28,9 +28,14 @@ void Transform::updateAnimations() {
     });
 }
 
-void Transform::moveBy(double dx, double dy) {
-    x += cos(angle) * dx + sin(angle) * dy;
-    y += cos(angle) * dy + sin(-angle) * dx;
+void Transform::moveBy(double dx, double dy, double duration) {
+    if (duration == 0) {
+        x += cos(angle) * dx + sin(angle) * dy;
+        y += cos(angle) * dy + sin(-angle) * dx;
+    } else {
+        animations.emplace_front(x, x + cos(angle) * dx + sin(angle) * dy, x, duration);
+        animations.emplace_front(y, y + cos(angle) * dy + sin(-angle) * dx, y, duration);
+    }
 }
 
 void Transform::scaleBy(double ds, double cx, double cy, double duration) {