1. Keeping Score
Richard Gesick

2. Objectives Create stats for the player
Implement those stats in our scripts
Create a stat tracker for the stats
Create an achievement system
Use PlayerPrefs to save our stats
Use GUI methods to show the stats and achievements
Create/assign the stats

3. Possible Stats Kills Deaths Total gold Current gold Gold spent Level
Rounds won Rounds lost
Kill-death ratio Win-lose ratio
Time played
Naming convention: pKills, pDeaths, etc
Script necessary?

4. PlayerPrefs
Allow storage of small amounts of info (strings, ints, floats) (about 1 MB total)
Save data using:
PlayerPrefs.SetFloat(“keyname”,variable name);
Load data into game using:
int pKills=PlayerPrefs.GetInt(“playerKills”);

5. StatTracker Script
Methods to initialize, reset, update the stats during the game.
Methods to set/reset PlayerPrefs for storage between games
Display methods
and later to read/write files

6. Setting Specific Stats
void SetStat(string stat, int intValue = 0) //see opt code { switch(stat) case "Kills": pKills+= intValue; float fKills = pKills; float fDeaths = pDeaths; if(fKills != 0) pKDR = fDeaths / fKills; break; case "Deaths": pDeaths+= intValue;

7. Resetting Stats
void ResetStats() { pKills = 0; pDeaths = 0; … }

8. Resetting PlayerPref
void ResetAllPrefs() { PlayerPrefs.SetInt("PlayerKills", 0); PlayerPrefs.SetInt("PlayerDeaths", 0); PlayerPrefs.SetInt("PlayerTotalGold", 0); … PlayerPrefs.Save(); }

9. PlayerPrefs.Save() From unity documentation:
Writes all modified preferences to disk.
By default Unity writes preferences to disk during OnApplicationQuit(). In cases when the game crashes or otherwise prematurely exits, you might want to write the PlayerPrefs at sensible 'checkpoints' in your game. This function will write to disk potentially causing a small hiccup, therefore it is not recommended to call during actual gameplay. Note: There is no need to call this function manually inside OnApplicationQuit().

10. Saving the player prefs
void SaveAllPrefs() { PlayerPrefs.SetInt("PlayerKills", pKills); PlayerPrefs.SetInt("PlayerDeaths", pDeaths); PlayerPrefs.SetInt("PlayerTotalGold", pTotalGold); … PlayerPrefs.Save(); }

11. Displaying stats
void OnGUI() { if(showStats) statsRect = GUI.Window(0, statsRect, StatsGUI, "Stats"); } void StatsGUI(int ID) GUILayout.BeginArea(new Rect(15, 25, 400, 400)); GUILayout.BeginVertical(); GUILayout.Label("Level - " + pLevel); GUILayout.Label("Gold - " + pCurrentGold); …