NES, SNES, Genesis and Extra Packets

1 files changed, 85 insertions, 0 deletions

diff --git a/src/packets/nes.ts b/src/packets/nes.ts
new file mode 100644
index 0000000..30b1418
--- /dev/null
+++ b/src/packets/nes.ts
@@ -0,0 +1,85 @@
+import { PACKET_TYPES } from "../constants";
+import { encodeString, readBoolean, readString, readUint16, readUint8, writeBoolean, writeUint16, writeUint8 } from "../utils";
+import { TASDPacket, buildBuffer } from "./utils";
+
+export class NESLatchFilterPacket implements TASDPacket {
+  constructor(public time: number) {}
+  get key() {
+    return PACKET_TYPES.NES_LATCH_FILTER;
+  }
+  get size() {
+    return 2;
+  }
+  static fromBuffer(buffer: Uint8Array) {
+    return new this(readUint16(buffer, 0));
+  }
+  toBuffer(g_keylen: number): Uint8Array {
+    const payload = new Uint8Array(2);
+    writeUint16(this.time, payload, 0);
+    return buildBuffer(g_keylen, this.key, payload);
+  }
+  toString(): string {
+    return `NESLatchFilter ${this.time}`;
+  }
+}
+
+export class NESClockFilterPacket implements TASDPacket {
+  constructor(public time: number) {}
+  get key() {
+    return PACKET_TYPES.NES_CLOCK_FILTER;
+  }
+  get size() {
+    return 1;
+  }
+  static fromBuffer(buffer: Uint8Array) {
+    return new this(readUint8(buffer, 0));
+  }
+  toBuffer(g_keylen: number): Uint8Array {
+    const payload = new Uint8Array(1);
+    writeUint8(this.time, payload, 0);
+    return buildBuffer(g_keylen, this.key, payload);
+  }
+  toString(): string {
+    return `NESClockFilter ${this.time}`;
+  }
+}
+
+export class NESOverreadPacket implements TASDPacket {
+  constructor(public high: boolean) {}
+  get key() {
+    return PACKET_TYPES.NES_OVERREAD;
+  }
+  get size() {
+    return 1;
+  }
+  static fromBuffer(buffer: Uint8Array) {
+    return new this(readBoolean(buffer, 0));
+  }
+  toBuffer(g_keylen: number): Uint8Array {
+    const payload = new Uint8Array(1);
+    writeBoolean(this.high, payload, 0);
+    return buildBuffer(g_keylen, this.key, payload);
+  }
+  toString(): string {
+    return `NESOverread ${this.high}`;
+  }
+}
+
+export class NESGameGenieCodePacket implements TASDPacket {
+  constructor(public code: string) {}
+  get key() {
+    return PACKET_TYPES.NES_GAME_GENIE_CODE;
+  }
+  get size() {
+    return this.code.length;
+  }
+  static fromBuffer(buffer: Uint8Array) {
+    return new this(readString(buffer, 0, buffer.length));
+  }
+  toBuffer(g_keylen: number): Uint8Array {
+    return buildBuffer(g_keylen, this.key, encodeString(this.code));
+  }
+  toString(): string {
+    return `NESGameGenieCode ${this.code}`;
+  }
+}
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