OK I have "Terryfied" enRitchied the code.
Update: I suppose I should refrain from word play with newbies but I wanted to honor Terry Ritchie's work and very notable commenting of code in a humorous way. Terry has been building a great beginner resource here:
https://www.qb64tutorial.com/games
BTW you can click the mouse more than once, in fact you can turn the mouse and missile into a heat seeker and curve around back if you over shoot, pretty cool!
Look at the nice clean edges I had in the IDE, can't repeat in any code tag??? wait now old code tag looks good and it pastes correctly aligned back in IDE yea!
Update: I suppose I should refrain from word play with newbies but I wanted to honor Terry Ritchie's work and very notable commenting of code in a humorous way. Terry has been building a great beginner resource here:
https://www.qb64tutorial.com/games
Code: (Select All)
Option _Explicit ' Get into this habit and save yourself grief from Typos
_Title "Missile Command Terryfied" ' another b+ mod 2023-06-23
' I probably picked up this game at the JB forum some years ago.
' Get Constants, Shared Variables and Arrays() declared. These Will Start with Capital Letters.
' Get Main module variables and arrays declared with starting lower case letters for local.
' This is what Option _Explicit helps, by forcing us to at least declare these before use.
' While declaring, telling QB64 the Type we want to use, we can also give brief description.
Const ScreenWidth = 800, ScreenHeight = 600 ' for our custom screen dimensions
Dim As Integer bombX, bombY ' incoming bomb screen position to shoot down
Dim As Single bombDX, bombDY ' DX and DY mean change in X position and Y position
Dim As Integer missileX, missileY ' missile position
Dim As Single missileDX, missileDY ' change X and Y of Missile position
Dim As Integer hits, misses ' score hits and misses
Dim As Integer mouseDistanceX, mouseDistanceY ' for calculations of missile DX, DY direction
Dim As Single distance ' ditto
Dim As Integer radius ' drawing hits with target like circles
Dim As Integer boolean ' to shorten the code line with a bunch of OR tests
Screen _NewImage(ScreenWidth, ScreenHeight, 32) ' sets up a graphics screen with custom dimensions
' the 32 is for _RGB32(red, green, blue, alpha) coloring.
'
_ScreenMove 250, 60 ' this centers screen in my laptop, you may need different numbers
InitializeForRound: ' reset game and start a round with a bomb falling
Cls
bombX = Rnd * ScreenWidth ' starts bomb somewhere across the screen
bombY = 0 ' starts bomb at top of screen
bombDX = Rnd * 6 - 3 ' pick rnd dx = change in x between -3 and 3
bombDY = Rnd * 3 + 3 ' pick rnd dy = change in y between 3 and 6, > 0 for falling
missileX = ScreenWidth / 2 ' missile base at middle across screen
missileY = ScreenHeight - 4 ' missile launch point at missile base is nearly at bottom of screen
missileDX = 0 ' missile is not moving awaiting mouse click for direction
missileDY = 0 ' ditto
distance = 0 ' distance of mouse click to missile base
Do
'what's the score?
_Title "Click mouse to intersect incoming Hits:" + Str$(hits) + ", misses:" + Str$(misses)
_PrintString (400, 594), "^" ' draw missle base = launch point
While _MouseInput: Wend ' poll mouse to get update
If _MouseButton(1) Then ' the mouse was clicked calc the angle from missile base
mouseDistanceX = _MouseX - missileX
mouseDistanceY = _MouseY - missileY
distance = (mouseDistanceX ^ 2 + mouseDistanceY ^ 2) ^ .5
missileDX = 5 * mouseDistanceX / distance
missileDY = 5 * mouseDistanceY / distance
End If
missileX = missileX + missileDX ' update missile position
missileY = missileY + missileDY ' ditto
bombX = bombX + bombDX ' update bomb position
bombY = bombY + bombDY ' ditto
' I am about to use a boolean variable to shorten a very long IF code line
' boolean is either 0 or -1 when next 2 statements are execued
' -1/0 or True/False is everything still in screen?
boolean = missileX < 0 Or missileY < 0 Or bombX < 0 Or bombY < 0
boolean = boolean Or missileX > ScreenWidth Or bombX > ScreenWidth Or bombY > ScreenHeight
If boolean Then ' done with this boolean
' reuse boolean to shorten another long code line checking if bomb and missile in screen
boolean = bombY > ScreenHeight Or missileX < 0 Or missileY < 0 Or missileX > ScreenWidth
If boolean Then misses = misses + 1
GoTo InitializeForRound
End If
' if the distance between missle and bomb < 20 pixels then the missile got the bomb, a hit
If ((missileX - bombX) ^ 2 + (missileY - bombY) ^ 2) ^ .5 < 20 Then ' show a strike as target
For radius = 1 To 20 Step 4 ' draw concetric circles to show strike
Circle ((missileX + bombX) / 2, (missileY + bombY) / 2), radius
_Limit 60
Next
hits = hits + 1 ' add hit to hits score
GoTo InitializeForRound
Else
PSet (missileX, missileY), &HFFFFFF00 ' draw your missle yellow
PSet (bombX, bombY), &HFF0000FF ' draw bomb blue
End If
_Limit 20
LoopBTW you can click the mouse more than once, in fact you can turn the mouse and missile into a heat seeker and curve around back if you over shoot, pretty cool!
Look at the nice clean edges I had in the IDE, can't repeat in any code tag??? wait now old code tag looks good and it pastes correctly aligned back in IDE yea!
b = b + ...