Class: GameLogic

Inherits:
Object
  • Object
show all
Defined in:
lib/server/gamelogic.rb

Overview

high level game logic

Instance Method Summary collapse

Constructor Details

#initialize(console) ⇒ GameLogic

Returns a new instance of GameLogic.



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# File 'lib/server/gamelogic.rb', line 7

def initialize(console)
  @console = console
  @alive_players = 0
end

Instance Method Details

#check_collide(players, player) ⇒ Object 



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# File 'lib/server/gamelogic.rb', line 27

def check_collide(players, player)
  players.each do |other|
    next if other == player
    next unless player.collide[:down]

    x_force = player.check_player_collide(other)
    player.apply_force(x_force, -8) unless x_force.zero?
  end
end

#game_map_collision_vertical(game_map, player) ⇒ Object 



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# File 'lib/server/gamelogic.rb', line 57

def game_map_collision_vertical(game_map, player)
  if player.dy.positive?
    # left bottom
    col = game_map.collision?(player.x / TILE_SIZE, (player.y + player.h) / TILE_SIZE)
    if col
      player.y = col[:y] * TILE_SIZE
      player.y -= player.crouching? ? PLAYER_SIZE / 2 : PLAYER_SIZE
      player.do_collide(:down, true)
    end
    # right bottom
    col = game_map.collision?((player.x + player.w) / TILE_SIZE, (player.y + player.h) / TILE_SIZE)
    if col
      player.y = col[:y] * TILE_SIZE
      player.y -= player.crouching? ? PLAYER_SIZE / 2 : PLAYER_SIZE
      player.do_collide(:down, true)
    end
  elsif player.dy.negative?
    # left top
    col = game_map.collision?(player.x / TILE_SIZE, player.y / TILE_SIZE)
    if col
      player.y = (col[:y] * TILE_SIZE) + player.h
      player.y += 1
      player.y += PLAYER_SIZE / 2 if player.crouching?
      player.do_collide(:up, true)
    end
    # right top
    col = game_map.collision?((player.x + player.w) / TILE_SIZE, player.y / TILE_SIZE)
    if col
      player.y = (col[:y] * TILE_SIZE) + player.h
      player.y += 1
      player.y += PLAYER_SIZE / 2 if player.crouching?
      player.do_collide(:up, true)
    end
  end
  nil
end

#gravity(game_map, player, _dt, _tick) ⇒ Object 



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# File 'lib/server/gamelogic.rb', line 184

def gravity(game_map, player, _dt, _tick)
  if player.dead
    player.dead_ticks += 1
    player.state[:bleeding] = true
    if player.dead_ticks > 3
      player.dead = false
      player.state[:bleeding] = false
      player.die
    end
  elsif game_map.death?(player.x / TILE_SIZE, (player.y + player.h) / TILE_SIZE)
    player.dead = true
    player.dead_ticks = 0
  end

  # grav = 100000 * dt
  # @console.log "grav: #{grav}"
  # player.y += grav
  player.dy += 1 if player.dy < 16
end

#handle_client_requests(game_map, data, id, players, _dt) ⇒ Object 



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# File 'lib/server/gamelogic.rb', line 94

def handle_client_requests(game_map, data, id, players, _dt)
  player = Player.get_player_by_id(players, id)
  if player.nil?
    @console.log "WARNING failed to update nil player with id=#{id}"
    if players.count.positive?
      @console.log 'connected players:'
    else
      @console.log 'no players currently connected!'
    end
    players.each do |p|
      @console.log "id=#{p.id} name='#{p.name}'"
    end
    return players
  end

  # reset values (should stay first)
  player.wants_crouch = false

  # move request
  if data[0] == '1'
    @console.dbg "player=#{id} wants to crouch"
    player.crouch!
    player.wants_crouch = true
    player.x -= PLAYER_SIZE / 4 unless player.was_crouching
    # TODO: why is it checking right when on left side!?
    if closest_interval_side(TILE_SIZE, player.x) == SIDE_LEFT
      player.check_move_right(game_map)
    else
      player.check_move_left(game_map)
    end
    player.was_crouching = true
  end
  if data[1] == 'l'
    game_map_collision_vertical(game_map, player)
    @console.dbg "player=#{id} wants to walk left"
    player.move_left(game_map)
  end
  if data[1] == 'r'
    @console.dbg "player=#{id} wants to walk right"
    game_map_collision_vertical(game_map, player)
    player.move_right(game_map)
  end
  if data[2] == '1'
    @console.dbg "player=#{id} wants to jump"
    player.do_jump
  end
  if data[3] == '1' && player.crouching? == false
    @console.dbg "player=#{id} wants to fire"
    player.fire_ticks += 1
    if player.fire_ticks > 29
      player.state[:fire] = 3
    elsif player.fire_ticks > 19
      player.state[:fire] = 2
    elsif player.fire_ticks > 9
      player.state[:fire] = 1
    end
  else
    if player.fire_ticks.positive?
      dx = (player.aim_x - player.x).clamp(-200, 200) / 20
      dy = (player.aim_y - player.y).clamp(-200, 200) / 20
      dx *= (player.fire_ticks / 10).clamp(1, 3)
      dy *= (player.fire_ticks / 10).clamp(1, 3)
      player.projectile.fire(player.x + TILE_SIZE / 4, player.y + TILE_SIZE / 2, dx, dy, player)
    end
    player.fire_ticks = 0
    player.state[:fire] = 0
  end
  player.aim_x = net_unpack_bigint(data[4..5])
  player.aim_y = net_unpack_bigint(data[6..7])
  # player.projectile.x = player.aim_x + 20
  # player.projectile.y = player.aim_y + 20

  player.check_out_of_game_map

  # return updated players
  players
end

#on_player_connect(client, players) ⇒ Object 



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# File 'lib/server/gamelogic.rb', line 12

def on_player_connect(client, players)
  player = Player.get_player_by_id(players, client[PLAYER_ID])
  return if player.nil?

  port, ip = Socket.unpack_sockaddr_in(client[NET_CLIENT].getpeername)
  @console.log "player joined ID=#{player.id} IP=#{ip}:#{port} name='#{player.name}'"
end

#on_player_disconnect(client, players) ⇒ Object 



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# File 'lib/server/gamelogic.rb', line 20

def on_player_disconnect(client, players)
  player = Player.get_player_by_id(players, client[PLAYER_ID])
  return if player.nil?

  @console.log "player left ID=#{player.id} name='#{player.name}'"
end

#posttick(game_map, players, _dt) ⇒ Object 



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# File 'lib/server/gamelogic.rb', line 172

def posttick(game_map, players, _dt)
  players.each do |player|
    # stopped crouching -> stand up
    next unless player.was_crouching && player.wants_crouch == false

    player.x += PLAYER_SIZE / 4
    player.was_crouching = false
    player.stop_crouch!
    game_map_collision_vertical(game_map, player)
  end
end

#tick(game_map, players, dt, tick) ⇒ Object 



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# File 'lib/server/gamelogic.rb', line 37

def tick(game_map, players, dt, tick)
  players.each do |player|
    # reset values (should stay first)
    player.reset_collide

    gravity(game_map, player, dt, tick)
    player.tick
    game_map_collision_vertical(game_map, player)
    if player.dx.positive?
      player.check_move_right(game_map)
    elsif player.dx.negative?
      player.check_move_left(game_map)
    end
    player.projectile.tick(players)
    # player collsions works
    # but it eats performance and delays jumping
    check_collide(players, player)
  end
end