InitHEADmain

1 files changed, 46 insertions, 0 deletions

diff --git a/Homework/cs5410/bbiy/src/systems/keyboardInput.js b/Homework/cs5410/bbiy/src/systems/keyboardInput.js
new file mode 100644
index 0000000..1b399ca
--- /dev/null
+++ b/Homework/cs5410/bbiy/src/systems/keyboardInput.js
@@ -0,0 +1,46 @@
+game.system.KeyboardInput = () => {
+  "use strict";
+  const keys = {};
+  const keyPress = (event) => {
+    if (!event.repeat) {
+      keys[event.key] = true;
+    }
+  };
+  const removeKey = (event) => {
+    delete keys[event.key];
+  };
+  const update = (elapsedTime, entities, changedIds) => {
+    for (let id in entities) {
+      const entity = entities[id];
+      if (entity.hasComponent('controllable') && entity.hasComponent('alive')) {
+        const controls = entity.components.controllable.controls;
+        if (!changedIds.has(entity.id)) {
+          if (controls.includes('left') && keys[game.controls.left]) {
+            entity.addComponent(game.components.Momentum({ dx: -1, dy: 0 }));
+          } else if (controls.includes('right') && keys[game.controls.right]) {
+            entity.addComponent(game.components.Momentum({ dx: 1, dy: 0 }));
+          } else if (controls.includes('up') && keys[game.controls.up]) {
+            entity.addComponent(game.components.Momentum({ dx: 0, dy: -1 }));
+          } else if (controls.includes('down') && keys[game.controls.down]) {
+            entity.addComponent(game.components.Momentum({ dx: 0, dy: 1 }));
+          }
+        }
+      }
+    }
+    if (keys[game.controls.undo]) {
+      game.systems.undo.undo(entities);
+    }
+    if (keys[game.controls.reset]) {
+      game.loadLevelIndex(game.level);
+    }
+    if (keys["Escape"]) {
+      game.systems.menu.bringUpMenu();
+    }
+    Object.keys(keys).map((key) => delete keys[key]);
+
+    return new Set();
+  };
+  window.addEventListener("keydown", keyPress);
+  window.addEventListener("keyup", removeKey);
+  return { keys, update };
+}