138 lines
3.1 KiB
Ruby
138 lines
3.1 KiB
Ruby
class Character
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attr_reader :world_x, :world_y
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SPEED = 3
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SIZE = [25, 30]
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def initialize
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@world_x = 60.0
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@world_y = 60.0
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start_room_coords = $bus.get(:start_room_coords)
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if start_room_coords
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@world_x, @world_y = [(start_room_coords[0] + 2) * 60 + 30, (start_room_coords[1] + 2) * 60 + 30]
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end
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# Load the full sheet as tiles
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sheet = Gosu::Image.load_tiles("assets/images/player.png", 20, 40, retro: true)
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rows = [
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:idle_front,
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:idle_back,
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:idle_right,
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:idle_left,
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:walk_front,
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:walk_back,
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:walk_right,
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:walk_left
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]
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@animations = {}
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rows.each_with_index do |name, row|
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start_index = row * 6
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@animations[name] = sheet[start_index, 6] # slice 6 frames
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end
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@current_animation = :idle_front
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@facing = :front
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$bus.on_retrievable(:player_position) do
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next [@world_x, @world_y]
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end
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end
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def rect
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w, h = SIZE
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[@world_x - w / 2, @world_y - h / 2, w, h]
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end
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def collides?(rect)
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return true if intersects?(self.rect, rect)
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false
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end
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def update
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dx = 0.0
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dy = 0.0
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dx -= 1 if Gosu.button_down?(Gosu::KB_A)
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dx += 1 if Gosu.button_down?(Gosu::KB_D)
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dy -= 1 if Gosu.button_down?(Gosu::KB_W)
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dy += 1 if Gosu.button_down?(Gosu::KB_S)
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moving = dx != 0 || dy != 0
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if moving
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if dy < 0
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@facing = :back
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elsif dy > 0
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@facing = :front
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elsif dx < 0
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@facing = :left
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elsif dx > 0
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@facing = :right
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end
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end
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@current_animation = moving ? :"walk_#{@facing}" : :"idle_#{@facing}"
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# Normalize vector if moving diagonally
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if dx != 0 && dy != 0
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length = Math.sqrt(dx**2 + dy**2)
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dx /= length
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dy /= length
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end
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# Apply speed
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dx *= SPEED
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dy *= SPEED
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steps = SPEED.ceil
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step_dx = dx / steps.to_f
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step_dy = dy / steps.to_f
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steps.times do
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# X axis
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@world_x += step_dx
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if ($bus.get(:collides?, rect) & [:wall, :object])&.any?
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@world_x -= step_dx
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end
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# Y axis
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@world_y += step_dy
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if ($bus.get(:collides?, rect) & [:wall, :object])&.any?
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@world_y -= step_dy
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end
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end
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# teleport to boss room for debug purposes
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if DEBUG && Gosu.button_down?(Gosu::KB_T)
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room_coords = $bus.get(:boss_room_coords)
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if room_coords
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@world_x, @world_y = [room_coords[0] * 60 + 5, room_coords[1] * 60 + 5]
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end
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end
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# Camera follow
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cam_x = @world_x - SCREEN_SIZE[0] / 2.0
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cam_y = @world_y - SCREEN_SIZE[1] / 2.0
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$bus.emit(:player_move, [cam_x, cam_y])
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end
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def draw
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cx = SCREEN_SIZE[0] / 2.0 - SIZE[0] / 2.0
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cy = SCREEN_SIZE[1] / 2.0 - SIZE[1] / 2.0
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sprite_x = cx + SIZE[0] / 2.0 - 20 * 1.8 / 2
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sprite_y = cy + SIZE[1] / 2.0 - 50 * 1.8 / 2
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elapsed = Gosu.milliseconds / 1000.0
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frame_index = ((elapsed * 7).floor) % 6
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@animations[@current_animation][frame_index].draw(sprite_x, sprite_y, sprite_y + 30, 1.8, 1.8)
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return unless DEBUG
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Gosu.draw_rect(cx, cy, SIZE[0], SIZE[1], Gosu::Color.new(0x8000FF00), cy)
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end
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end |