1 files changed, 19 insertions, 0 deletions
diff --git a/utils/utils.lua b/utils/utils.lua
new file mode 100644
index 0000000..ce7e8b7
--- /dev/null
+++ b/utils/utils.lua
@@ -0,0 +1,19 @@
+local utils = {}
+
+function utils.circlesCollide(x1, y1, r1, x2, y2, r2)
+    local dx = x2 - x1
+    local dy = y2 - y1
+    local distanceSquared = dx * dx + dy * dy  -- 避免开方，提高性能
+    local radiusSum = r1 + r2
+    return distanceSquared <= radiusSum * radiusSum
+end
+
+function utils.playerCollideWith(x, y, r)
+    return utils.circlesCollide(G.player.x, G.player.y, G.player.r, x, y, r)
+end
+
+function utils.randomPosition()
+    return math.random(love.graphics.getWidth()), math.random(love.graphics.getHeight())
+end
+
+return utils