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Diffstat (limited to 'examples/pong_vec/main.lua')
| -rw-r--r-- | examples/pong_vec/main.lua | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/examples/pong_vec/main.lua b/examples/pong_vec/main.lua deleted file mode 100644 index 0b8ff62..0000000 --- a/examples/pong_vec/main.lua +++ /dev/null @@ -1,132 +0,0 @@ --- Pong example using Vector2 library. - -package.path = package.path..";"..RL.GetBasePath().."../resources/lib/?.lua" - -Vec2 = require "vector2" - --- Settings. -local winSize = Vec2:new( 800, 600 ) -local monitor = 0 - --- Constants. -local PLAYER_SPEED = 300 -local BALL_SPEED = 330 - --- Game objects. -local playerLeft = { - pos = Vec2:new( 0, 0 ), - size = Vec2:new( 10, 70 ), - score = 0, -} -local playerRight = { - pos = Vec2:new( 0, 0 ), - size = Vec2:new( 10, 70 ), - score = 0, -} -local ball = { - pos = Vec2:new( 0, 0 ), - radius = 8.0, - vel = Vec2:new( 0, 0 ), -} - -local function reset() - -- Initialize player positions. - playerLeft.pos.x = playerLeft.size.x - playerLeft.pos.y = winSize.y / 2 - playerLeft.size.y / 2 - - playerRight.pos.x = winSize.x - playerRight.size.x * 2 - playerRight.pos.y = winSize.y / 2 - playerRight.size.y / 2 - - -- Set ball to center. - ball.pos:set( winSize.x / 2, winSize.y / 2 ) - -- Short for if math random result 1, set BALL_SPEED otherwise set -BALL_SPEED. - -- Could be replaced by normal if statement for easier readability. - ball.vel.x = math.random( 0, 1 ) == 1 and BALL_SPEED or -BALL_SPEED - -- Start slow. - ball.vel.y = 0 -end - -local function ballHit( padPos, padSize ) - ball.vel.x = -ball.vel.x - - local padCenter = padPos.y + padSize.y / 2 - local relHitPos = ball.pos.y - padCenter - ball.vel.y = BALL_SPEED * relHitPos / padSize.y * 2 -end - -function RL.init() - -- Set window to center of monitor. - local mPos = Vec2:new( RL.GetMonitorPosition( monitor ) ) - local mSize = Vec2:new( RL.GetMonitorSize( monitor ) ) - - RL.SetConfigFlags( RL.FLAG_VSYNC_HINT ) - RL.SetWindowSize( winSize ) - RL.SetWindowPosition( { mPos.x + mSize.x / 2 - winSize.x / 2, mPos.y + mSize.y / 2 - winSize.y / 2 } ) - RL.SetWindowTitle( "Pong" ) - - -- Initialize ball pos. - math.randomseed( os.time() ) - reset() -end - -function RL.process( delta ) - -- Left player controls. - if RL.IsKeyDown( RL.KEY_W ) and 0 < playerLeft.pos.y then - playerLeft.pos.y = playerLeft.pos.y - PLAYER_SPEED * delta - elseif RL.IsKeyDown( RL.KEY_S ) and playerLeft.pos.y + playerLeft.size.y < winSize.y then - playerLeft.pos.y = playerLeft.pos.y + PLAYER_SPEED * delta - end - - -- Right player controls. - if RL.IsKeyDown( RL.KEY_UP ) and 0 < playerRight.pos.y then - playerRight.pos.y = playerRight.pos.y - PLAYER_SPEED * delta - elseif RL.IsKeyDown( RL.KEY_DOWN ) and playerRight.pos.y + playerRight.size.y < winSize.y then - playerRight.pos.y = playerRight.pos.y + PLAYER_SPEED * delta - end - - -- Move ball. - ball.pos = ball.pos + ball.vel:scale( delta ) - - -- Bounce from window edge. - if ( ball.pos.y < ball.radius and ball.vel.y < 0 ) - or ( winSize.y < ball.pos.y + ball.radius and 0 < ball.vel.y ) then - ball.vel.y = -ball.vel.y - end - - -- Bounce from players. - local playerLeftRect = { playerLeft.pos.x, playerLeft.pos.y, - playerLeft.size.x, playerLeft.size.y } - local playerRightRect = { playerRight.pos.x, playerRight.pos.y, - playerRight.size.x, playerRight.size.y } - - if RL.CheckCollisionCircleRec( ball.pos, ball.radius, playerLeftRect ) and ball.vel.x < 0 then - ballHit( playerLeft.pos, playerLeft.size ) - elseif RL.CheckCollisionCircleRec( ball.pos, ball.radius, playerRightRect ) and 0 < ball.vel.x then - ballHit( playerRight.pos, playerRight.size ) - end - - -- Score. - if ball.pos.x < 0 then - playerRight.score = playerRight.score + 1 - reset() - elseif winSize.x < ball.pos.x then - playerLeft.score = playerLeft.score + 1 - reset() - end -end - -function RL.draw() - RL.ClearBackground( RL.BLACK ) - - -- Draw players. - RL.DrawRectangle( { playerLeft.pos.x, playerLeft.pos.y, playerLeft.size.x, playerLeft.size.y }, RL.WHITE ) - RL.DrawRectangle( { playerRight.pos.x, playerRight.pos.y, playerRight.size.x, playerRight.size.y }, RL.WHITE ) - - -- Draw ball. Ball position will be the center in drawCircle. - RL.DrawCircle( ball.pos, ball.radius, RL.WHITE ) - - -- Draw score. - RL.DrawText( RL.defaultFont, tostring( playerLeft.score ), { 50, 10 }, 40, 2, RL.WHITE ) - local rightTextSize = Vec2:new( RL.MeasureText( RL.defaultFont, tostring( playerRight.score ), 40, 2 ) ) - RL.DrawText( RL.defaultFont, tostring( playerRight.score ), { winSize.x - 50 - rightTextSize.x, 10 }, 40, 2, RL.WHITE ) -end |
