Mouse following thing and template fix

_templates/raylib/empty/main.c

@@ -1,7 +1,7 @@
 #include <raylib.h>
 
 int main(int argc, char **argv) {
-  InitWindow(__WINDOW_WIDTH, __WINDOW_HEIGHT, "__PROJECT_NAME");
+  InitWindow(__WINDOW_WIDTH, __WINDOW_HEIGHT, "__PROJECT");
 
   while (!WindowShouldClose()) {
     BeginDrawing();

vis/follow-mouse/.gitignore

@@ -0,0 +1 @@
+follow-mouse

vis/follow-mouse/Makefile

@@ -0,0 +1,12 @@
+CFLAGS += -Wall -Wextra `exec pkg-config --cflags raylib`
+LDFLAGS := -lm `pkg-config --libs raylib`
+
+follow-mouse: main.c
+	$(CC) $(CFLAGS) main.c $(LDFLAGS) -o follow-mouse
+
+
+clean:
+	$(RM) follow-mouse
+
+run: follow-mouse
+	./follow-mouse

vis/follow-mouse/main.c

@@ -0,0 +1,35 @@
+// x-run: make run
+#include <raylib.h>
+#include <raymath.h>
+#include <string.h>
+
+#define TRAIL_LENGTH 360
+
+int main(int argc, char **argv) {
+  SetConfigFlags(FLAG_WINDOW_RESIZABLE);
+  InitWindow(800, 600, "vis/follow-mouse");
+  SetTargetFPS(120);
+
+  Vector2 trail[TRAIL_LENGTH];
+  Vector2 ex_trail[TRAIL_LENGTH];
+
+  Vector2 pos = { 0, 0 };
+
+  while (!WindowShouldClose()) {
+    BeginDrawing();
+    ClearBackground(BLACK);
+    memmove(&trail[0], &trail[1], sizeof(Vector2) * (TRAIL_LENGTH - 1));
+    trail[TRAIL_LENGTH - 1] = GetMousePosition();
+    DrawLineStrip(trail, TRAIL_LENGTH, RED);
+
+    pos = Vector2Lerp(pos, trail[TRAIL_LENGTH - 1], 0.125);
+    DrawCircleLines(pos.x, pos.y, 8, WHITE);
+    memmove(&ex_trail[0], &ex_trail[1], sizeof(Vector2) * (TRAIL_LENGTH - 1));
+    ex_trail[TRAIL_LENGTH - 1] = pos;
+
+    DrawLineStrip(ex_trail, TRAIL_LENGTH, GREEN);
+
+
+    EndDrawing();
+  }
+}