[Mackan90096] Gem Program

-- Change absolutely whatever you need to, even if it says you shouldn't

------------ General Settings ------------

------ Required Internal ------
-- Changing anything in this section isn't recommended
local width, height = term.getSize() -- Must be defined before Gem Settings

------ Gem Settings ------
-- The number of gems to have on the screen at all times
local gemsOnScreen = 10
-- The minimum x coordinate that a gem can be generated at
local minX = 13
-- The minimum y coordinate that a gem can be generated at
local minY = 4
-- The maximum x coordinate that a gem can be generated at
local maxX = 47
-- The maximum y coordinate that a gem can be generated at
local maxY = height - 1
-- List of possible gem colors
local colorChoices = { colors.purple, colors.yellow, colors.lime, colors.lightBlue }
-- Define the gem worth value (money received when clicked)
local gemValue = { }
gemValue[colors.purple] = 10 -- Get 10 money when you click a purple gem
gemValue[colors.yellow] = 5 -- Get 5 money when you click a pink gem
gemValue[colors.lime] = 15 -- Get 15 money when you click a lime gem
gemValue[colors.lightBlue] = 20 -- Get 20 money when you click a blue gem

------ Screen Settings ------
-- This allows you to edit the colors without having to scrounge the code for each occurrence of a color
-- Background color
local bgColor = colors.blue
-- Text color
local txtColor = colors.white

------------ Internals ------------

------ User Data ------
local money = 0 -- The player's money
local gemsClicked = 0 -- The number of gems the player has collected
local multi = 1 -- The current multiplier
local multiCost = 100 -- The cost of upgrading the multiplier

------ Game Data ------
-- Table that stores the gem data (coordinates and color)
local gems = { }
-- Stores all buttons in the game
local btns = {} -- Unused for now

------------ Functions ------------

function newGem()
    local w, h = term.getSize()
    local x, y

    -- Pick a random spot for the pixel to appear
    while true do
        x = math.random(minX, maxX) -- Random number for the x coordinate
        y = math.random(minY, maxY) -- Random number for the y coordinate
        if #gems > 0 then
            local good = true
            for i, v in ipairs(gems) do
                -- Check to see if a gem already exists in that position
                if v[1] == x and v[2] == y then good = false end
            end
            if good then break end
        else
            break
        end
    end

    -- Now, we choose a random color for the pixel (maybe you don't need this)
    local color = colorChoices[math.random(1, #colorChoices)]

    -- This holds the coordinates and the color of the gem
    local gem = {x, y, color}
    table.insert(gems, gem) -- Adds the gem data to the main table

    -- Draw the gem
    term.setCursorPos(x, y)
    term.setBackgroundColor(color)
    write(" ")
    term.setBackgroundColor(bgColor)
end

function spawnGems(n)
    for i = 1, n do
        newGem()
    end
end

function buyMulti()
    money = money - multiCost
    multiCost = multiCost * 2
    multi = multi + 1
    stats()
end

function stats()
    term.setCursorPos(1, 1)
    local left = 13
    left = 13 - #"Money: "..money
    print("Money: "..money..string.rep(" ", left)) -- So that when you buy stuff and your money goes down, digits don't remain. Example: If it displayed 2000 and you bought something that costed 1200, it would display 8000 (the last 0 wouldn't be cleared).
    print("Gems: "..gemsClicked)
    print("Multiplier: ")
    print(multi.."x")
    print("Upgrades:")
    print("Multiplier")
    print("Cost: "..multiCost)
    --[[if money >= multiCost then
        -- Color the button as 'disabled'
        term.setTextColor(colors.white)
        term.setBackgroundColor(colors.black)
    else
        -- Color the button as 'enabled'
        term.setTextColor(colors.lightGray)
        term.setBackgroundColor(colors.gray)
    end
    write("Upgrd Multi")
    term.setTextColor(colors.white)
    term.setBackgroundColor(colors.red)]]--
end

------------ Running Code ------------

-- Don't use a number for the color unless absolutely nessecary...and I have no idea when it would be
-- Use the colors API. 16384 is the same as saying colors.red
term.setBackgroundColor(bgColor)
term.setTextColor(txtColor)
term.clear()
spawnGems(gemsOnScreen)
stats()

while true do
    local e, p1, p2, p3 = os.pullEvent("mouse_click")
    if  p2 >= 1 and p2 <= 11 and p3 == 7 then
        if money >= multiCost then -- We use >= because the user may have more money than the cost
            buyMulti()
        end
    end
    -- Check if the coordinates clicked are any of the pixel's coordinates
    for i, v in ipairs(gems) do
        if p1 == 1 and v[1] == p2 and v[2] == p3 then -- A gem was LEFT clicked
            -- Do other stuff here
            -- Increment variables
            gemsClicked = gemsClicked + 1

            -- Give money
            money = money + (gemValue[v[3]] * multi) -- Gem value multiplied by the multiplier

            -- Remove the gem
            term.setBackgroundColor(bgColor)
            term.setCursorPos(v[1], v[2])
            write(" ")
            table.remove(gems, i)

            -- Spawn a new gem
            newGem()

            -- Update stats
            stats()
        end
    end
    sleep(0.05)
end