initial commit

types/ThrownPitch.ts

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+
+export type ThrownPitch = {
+	readonly name: string;
+	readonly speed: number; // in mph
+	readonly spinType: "6-12" | "4-10" | "3-9" | "12-6" | "9-3" | "none";
+	readonly rpm: number; // example: 6-12 with fast rpm is fastball, 6-12 with slow rpm is changeup
+	readonly accuracy: number; // how likely that a ball will end up where the pitcher meant for it to.
+}