Grid system & simple physics

1 files changed, 13 insertions, 0 deletions

diff --git a/src/systems/physics.js b/src/systems/physics.js
new file mode 100644
index 0000000..c9b6cf7
--- /dev/null
+++ b/src/systems/physics.js
@@ -0,0 +1,13 @@
+game.system.Physics = () => {
+  const update = (elapsedTime) => {
+    for (let id in game.entities) {
+      const entity = game.entities[id];
+      if (entity.hasComponent("momentum")) {
+        const {dx, dy} = entity.components.momentum;
+        entity.components.position.x += dx * elapsedTime;
+        entity.components.position.y += dy * elapsedTime;
+      }
+    }
+  }
+  return { update };
+}
\ No newline at end of file