initial commit

game/character.rb

@@ -0,0 +1,113 @@
+class Character
+  SPEED = 2.5
+  SIZE = [25, 30]
+
+  def initialize
+    @world_x = 60.0
+    @world_y = 60.0
+
+    # Load the full sheet as tiles
+    sheet = Gosu::Image.load_tiles("assets/images/player.png", 20, 40, retro: true)
+
+    rows = [
+      :idle_front,
+      :idle_back,
+      :idle_right,
+      :idle_left,
+      :walk_front,
+      :walk_back,
+      :walk_right,
+      :walk_left
+    ]
+
+    @animations = {}
+
+    rows.each_with_index do |name, row|
+      start_index = row * 6
+      @animations[name] = sheet[start_index, 6] # slice 6 frames
+    end
+
+    @current_animation = :idle_front
+    @facing = :front
+  end
+
+  def rect
+    w, h = SIZE
+    [@world_x - w / 2, @world_y - h / 2, w, h]
+  end
+
+  def collides?(rect)
+    return true if intersects?(self.rect, rect)
+    false
+  end
+
+  def update
+    dx = 0.0
+    dy = 0.0
+
+    dx -= 1 if Gosu.button_down?(Gosu::KB_A)
+    dx += 1 if Gosu.button_down?(Gosu::KB_D)
+    dy -= 1 if Gosu.button_down?(Gosu::KB_W)
+    dy += 1 if Gosu.button_down?(Gosu::KB_S)
+
+    moving = dx != 0 || dy != 0
+
+    if moving
+      if dy < 0
+        @facing = :back
+      elsif dy > 0
+        @facing = :front
+      elsif dx < 0
+        @facing = :left
+      elsif dx > 0
+        @facing = :right
+      end
+    end
+
+    @current_animation = moving ? :"walk_#{@facing}" : :"idle_#{@facing}"
+
+    # Normalize vector if moving diagonally
+    if dx != 0 && dy != 0
+      length = Math.sqrt(dx**2 + dy**2)
+      dx /= length
+      dy /= length
+    end
+
+    # Apply speed
+    dx *= SPEED
+    dy *= SPEED
+
+    # Horizontal
+    @world_x += dx
+    if $bus.get(:collides?, rect)&.include?(:wall)
+      @world_x -= dx
+    end
+
+    # Vertical
+    @world_y += dy
+    if $bus.get(:collides?, rect)&.include?(:wall)
+      @world_y -= dy
+    end
+
+    # Camera follow
+    cam_x = @world_x - SCREEN_SIZE[0] / 2.0
+    cam_y = @world_y - SCREEN_SIZE[1] / 2.0
+    $bus.emit(:player_move, [cam_x, cam_y])
+  end
+
+  def draw
+    cx = SCREEN_SIZE[0] / 2.0 - SIZE[0] / 2.0
+    cy = SCREEN_SIZE[1] / 2.0 - SIZE[1] / 2.0
+
+    sprite_x = cx + SIZE[0] / 2.0 - 20 * 1.8 / 2
+    sprite_y = cy + SIZE[1] / 2.0 - 50 * 1.8 / 2
+
+    elapsed = Gosu.milliseconds / 1000.0
+    frame_index = ((elapsed * 7).floor) % 6
+    @animations[@current_animation][frame_index].draw(sprite_x, sprite_y, sprite_y, 1.8, 1.8)
+
+    return unless DEBUG
+
+    Gosu.draw_rect(cx, cy, SIZE[0], SIZE[1], Gosu::Color.new(0x8000FF00), cy)
+  end
+end