Achievments and Unlockables

I need to know how to make acheivments and unlockables for my game, Down-Fall. I want these acheivements in my game

> Zombie Slayer: kill 1000 zombies

> Urban Survivior: complete the "Urban Dead" scenario

> Buckets of Blood...on the dance floor: complete the "Blood on the Dance-Floor" scenario

> Found in the Blizzard: complete the "Bloody Blizzard" scenario

> Jungle Fever: complete the "Tropical Plague" scenario

> For the last time...THIS ISN'T CALL OF DUTY!!!: complete the "Black-Ops" scenario

> Fashion Maniac: unlock all character skins

> Time-attack Pro: complete all 3 time-attack maps with the high score

> Onslaught Juggernaught: complete all 3 onslaught maps with the high score

> I'm a Zombie Fan: unlock all wallpapers

> This music is KILLER: unlock all music tracks.

I need to know, what I need to do to make this happen.

Unlockables

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> Character-Skins

- Rambo: kill 250 zombies

- Robo-Cop: complete the Urban Dead scenario 5 times

- Track-Runner: play all the Time-attack maps

- Man in the Trench-Coat: play all the onslaught maps

> Wallpapers

- Set 1: beat the urban dead scenario 3 times

- Set 2: beat the black ops scenario 3 times

- Set 3: beat the tropical plague scenario 3 times

- Set 4: beat the bloody blizzard scenario 3 times

- Set 5: beat the blood on the dance-floor scenario 3 times

> Music

- Track 1: get the high-score on the Public Assembly time-attack map

- Track 2: get the high score on the Mines time-attack map

- Track 3: get the high score on the Village time-attack map

- Track 4: get the high score on the Tanker onslaught map

- Track 5: get the high score on the Marsh-Lands onslaught map

> Modes

- Apcolapse Scenario: complete all scenarios

- Nazi Zombies onslaught map: get all acheivements

If you want to save the achievement stats to a file, take a look at INI files http://www.scirra.com/forum/viewtopic.php?f=8&t=4328&hilit=Save

I'd say the easiest way to make it so you unlock it once is to check when the player meets the objectives then add the comparative condition

INI.ItemValue("Achievements","Achievement1Unlocked") equals 0[/code:1xxowpsc] 
so that it only does it when the achievement isn't already unlocked

Is there anyway to do it without using Phyton?

Take a look at variables. You can make a variable on zombie deaths and add 1 to the variable every time a zombie is killed.

Then add a system event that checks the variable. When it's equal or higher than 1000, your achievement is unlocked.

edit: not sure on how you would save your progress..

Thanks again! This has helped alot, mabye I could use the same system on the others as well. Like for a unlockable I have, you need to complete it 3 times to get the unlockable, every time I complete it, I could add 1 to the variable until you get three...

Ah, what I shared must look like Python, but don't worry, its all done with events. Take a look at the map editor/loader I made here: http://www.scirra.com/forum/viewtopic.php?f=8&t=1721

What does that do? I know I must sound like a retard but I'm only 14 and new to construct, take it easy please

Heh, no problem. It's a map editor that lets you place objects and save their positions and then later load them again. I sent you the link so you could download the cap files and see how they work.

However, I will try to create an achievments cap/tutorial for you and post a link here later (probably over the weekend as I will be pretty busy for the rest of this week ).

Here is one way to do achievements:

http://dl.dropbox.com/u/5426011/examples4/acheivements.cap made in 0.99.97

Jayjay and R0J0hound, wanted to let you know that I downloaded your examples, thanks.

Jayjay and R0J0hound, wanted to let you know that I downloaded your examples, thanks.

Awesome, glad to hear they're put to use

Edit: Incase anyone wants to see a cap just for saving and loading achievements, see here http://www.scirra.com/forum/viewtopic.php?f=8&t=9418