NuclearPong/src/AI.lua

function AI(target, ballCnt, diff)
    print("AI RUNNING")
    currentTarget = evaluateClosestBall(target);
   --print("CLOSEST TARGET IS " .. currentTarget)
    if diff < 1200 then 
       --print ("Normal targeting ".. currentTarget .. " " .. target.x - ball[currentTarget].x .. " " .. ball[currentTarget].y - target.y)
        if (ball[currentTarget].y - target.y >= target.height and math.abs(target.x - ball[currentTarget].x) < diff) then
            target.dy = AI_SPEED
        elseif (target.y - ball[currentTarget].y >= -target.height/2 and math.abs(target.x - ball[currentTarget].x) < diff) then
            target.dy = -AI_SPEED
        else
            target.dy = 0
        end
    else 
       --print("Complex targeting")
            if target.x < 100 then 
            neededTarget = predictBall(ball[currentTarget], target.x)
           --print(target.x .. " found " .. neededTarget)
            if neededTarget ~= -1 then 
           --print("Calculated target = " .. neededTarget)
            if (target.y + target.height/2 - neededTarget >= 15) then 
                target.dy = -AI_SPEED
            elseif (neededTarget - target.y >= target.height*0.9) then 
                target.dy = AI_SPEED
            else
                target.dy = 0
            end 
            end 
            else 
                neededTarget1 = predictBall(ball[currentTarget], target.x)
                --print(target.x .. " found " .. neededTarget)
                 if neededTarget1 ~= -1 then 
                --print("Calculated target = " .. neededTarget)
                 if (target.y + target.height/2 - neededTarget1 >= 10) then 
                     target.dy = -AI_SPEED
                 elseif (neededTarget1 - (target.y+target.height/2) >= 10) then 
                     target.dy = AI_SPEED
                 else
                     target.dy = 0
                 end 
                
            end 
        end
    end 
    if
        difficultyl == 350 and player2reverbav == true and VIRTUAL_WIDTH - ball[currentTarget].x < 90 and
            math.abs(ball[currentTarget].y - targe.y) > 150
     then
        sounds["time"]:play()
        player2reverbav = false
        timeIsSlow2 = true
        originalPaddle = paddle_SPEED
        originalSpeed = ballSpeed
        player2reverbav = 0
        potentialnuke2 = 0
        potentialstrike2 = 0
    end

    if (player2nukescore > AI_STRIKEMOD and striken == 0) then
        player2striken = 1
    elseif (player2nukescore > AI_NUKEMOD and striken == 1) then
        if (areanuclear == 1) then
            maxspeed = maxspeed + 50
        end
        sounds["nuke"]:play()
        potentialstrike2 = 0
        areanuclear = 1
        ballSpeed = ballSpeed * 2
        if (synctype == 0) then
            paddle_SPEED = paddle_SPEED * 2
        end
        if (synctype == 1) then
            paddle_SPEED = ballSpeed / 10
        end
        if (synctype == 0) then
            AI_SPEED = AI_SPEED * 2.2
        end
        if (synctype == 1) then
            AI_SPEED = ballSpeed * 1.1 / 10
        end
        player2nukescore = 0
        player2reverbav = 0
        potentialnuke2 = 0
    end
end
function evaluateClosestBall(target)
    local ans = 0
    local min = 99999;
    for i = 1, maxBalls do 
        if math.abs(target.x - ball[i].x ) < min then 
            min = math.abs(target.x - ball[i].x)
            ans = i 
        end 
    end 
    return ans
end 
function predictBall(target, px)
   --print("BALLSTATS:" .. target.x .. " " .. target.y)
    if target.dx > 0 and px > 100 then 
        local ans = recursiveCalculations(px, target.x, target.y, target.dx, target.dy, 1)
        return ans
    elseif target.dx < 0 and px < 100 then 
        local ans = recursiveCalculations(px, target.x, target.y, target.dx, target.dy, 1)
        return ans
    else
       --print("GO TO CENTER!!")
        return VIRTUAL_HEIGHT/2
    end
end 
function recursiveCalculations(px, ex, ey, edx, edy, ifspecial)
    if (edy > 0) then 
    --print ("normal" .. ex .." " .. ey .. " " .. edx .. " " .. edy)
        local time = (VIRTUAL_HEIGHT-40-ey) / (ballSpeed * edy)
        
        local distance = math.abs(ballSpeed * edx) * time
        --print("DOWNWARD" .. distance .. " " .. edx .. " " .. time .. " " .. math.abs(px-ex))
        if distance > math.abs(px - ex) then 
            --print("QQ")
            local anstime = math.abs(px - ex) / math.abs(ballSpeed * edx) 
            local bonus = (ballSpeed * edy) * anstime 
        --print("results: " .. bonus .. " " .. edx .. " " .. anstime .. " " .. (px-ex))
        -- if (ifspecial == 0) then  
                local answer = ey + bonus
                --love.window.setTitle(tostring(answer) .. "Basiccalc")
                return ey + bonus 
                
        -- else 
            --   return -1  
            --end
        else 
            --print("SS")
            local emulatedx = ex + distance * edx 
            local emulatedy = VIRTUAL_HEIGHT-40
            --print("EMULATED: " .. emulatedx .. " " .. emulatedy)
            local answer = recursiveCalculations(px, emulatedx, emulatedy, edx, -edy, 0)
            --print("GOT EMULATION RESULT AS " .. answer)
            --love.window.setTitle(tostring(answer) .. "recursive calc bottom")
            return answer 
        end  
    elseif edy == 0 then 
        return ey
    else
    --print ("inverse" .. ex .." " .. ey .. " " .. edx .. " " .. edy)
        local time = (ey) / math.abs((ballSpeed * edy))
        local distance = math.abs(ballSpeed * edx) * time 
        --print("UPWARD" .. distance .. " " .. edx .. " " .. time .. " " .. math.abs(px-ex))

        
    --print("Why th efuck ")

        if distance > math.abs(px - ex) then 
            local anstime = math.abs(px - ex) / math.abs(ballSpeed * edx) 
            local bonus = (ballSpeed * edy) * anstime
        --print("results: " .. bonus .. " " .. edx .. " " .. anstime .. " " .. math.abs(px-ex)) 
--         if (ifspecial == 0) then 
                local answer = ey + bonus 
                --love.window.setTitle(tostring(answer) .. "Basiccalc")
                return answer 
    --       else 
    --         return -1 
        --   end
        else 
            local emulatedx = ex + distance * edx 
            local emulatedy = 0
----print("results: " .. bonus .. " " .. edx .. " " .. anstime .. " " .. (VIRTUAL_WIDTH-ex)) 
            local answer = recursiveCalculations(px, emulatedx, emulatedy, edx, -edy, 0)
            --love.window.setTitle(tostring(answer) .. "recursivecalc")
            return answer 
        end
    end
end