trainsim/lib/input.ts

64 lines
1.8 KiB
TypeScript

export class InputManager {
private keyStates: Map<string | number, boolean> = new Map();
private mouseStates: Map<string | number, boolean> = new Map();
private mouseLocation: { x: number; y: number } = { x: 0, y: 0 };
private mouseDelta: { x: number; y: number } = { x: 0, y: 0 };
private keyEvents: Map<string | number, () => void> = new Map();
private mouseEvents: Map<string | number, () => void> = new Map();
constructor() {
document.addEventListener("keydown", (e) => {
this.keyStates.set(e.key, true);
this.keyEvents.get(e.key)?.call(e);
});
document.addEventListener("keyup", (e) => {
this.keyStates.set(e.key, false);
});
document.addEventListener("mousedown", (e) => {
this.mouseStates.set(e.button, true);
this.mouseEvents.get(e.button)?.call(e);
});
document.addEventListener("mouseup", (e) => {
this.mouseStates.set(e.button, false);
});
self.addEventListener("mousemove", (e) => {
this.mouseLocation = { x: e.clientX, y: e.clientY };
this.mouseDelta = {
x: e.movementX,
y: e.movementY,
};
});
}
getKeyState(key: string | number) {
return this.keyStates.get(key);
}
getMouseState(key: string | number) {
return this.mouseStates.get(key);
}
getMouseLocation() {
return this.mouseLocation;
}
getMouseDelta() {
return this.mouseDelta;
}
onKey(key: string | number, cb: () => void) {
this.keyEvents.set(key, cb);
}
onMouse(key: string | number, cb: () => void) {
this.mouseEvents.set(key, cb);
}
offKey(key: string | number) {
const events = this.keyEvents.get(key);
this.keyEvents.delete(key);
return events;
}
offMouse(key: string | number) {
this.mouseEvents.delete(key);
}
}