Perk Limit

[Pixzel]

In the game I'm making, you have the choice to purchase perks along your adventure. How do I make it so that the first perk you get will be the first icon to appear in the HUD. For example:

Right now I have the perks set up like this. When you obtain them, they are in the order like this.


I want it like this:

I want them to display in the order your purchase them. Like you buy the purple colored perk first, then you bought the red after that. Not like how it is displayed up there where the perk icons appear in the spot they appear when bought.

[Jacob]

You could use a list to order them, and add new list items when you buy new ones. Then you can position them based on their list index.

Although, I much prefer the top one. It keeps a specific order to things. if you just grayed them out when you didn't have them, it would be a lot easier to understand which ones you're missing.

[gkinfinity]

I had a similar problem a while ago. There's probably a better way to do it but here's what I came up with (hopefully I explain this well enough)-

First use either counters or an array or something to keep track of the order the perks were purchased in. So for instance you'd have a counter corresponding to each color (purple, red, green, etc). Lets assume the player purchased them in the same order as your 2nd screenshot above. You would set the purple counter to 1 (purchased first), red to 2, and green to 3. When the value of any of the counters is > 0 and isn't on screen already you create the icon. Then have the icon's position is set according to an equation similar to the following:

X coord of perk icon = (Value of corresponding counter - 1) * width of icon + whatever extra distance you want between the left side of the screen and first icon

Assuming your icons are 10 pixels wide and you wanted 4 pixels of space on the left side of the screen (change these values as necessary), here's 2 examples

X coordinate of purple icon = (1 - 1) * 10 + 4 = 4

X coordinate of green icon = (3 - 1) * 10 + 4 = 24

The Y coordinates would be the same for all icons of course

[mobichan]

You could also put all your perk icons as directions in a single active object. Then when you purchase a perk, create a new perk active next to the existing perks and set a variable in the perk active to a value that corresponds to which perk was purchased (0 = red, 1 = orange, 2 = yellow, etc...). Then have a set of events that basically set the perk active to a specific direction if its variable equals a value.

You can simplify this further by having the directions correspond to the variable, and have a single event that just says "Always set perk active direction to its variable value.

Hope that makes sense.

Mobichan