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• Getting Started

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• DragonRuby Philosophy

• Tools

• API

  • $gtk
  • audio
  • cvars
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  • inputs
  • layout
  • outputs
  • pixel_array
  • state
  • Ruby extensions
    • Array
    • Numeric
    • Kernel

• Guides & Tutorials

  • DR Projects & Github
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  • DragonRuby Recipes

• Samples

  • 00_learn_ruby_optional
    • 00_beginner_ruby_primer
      • automation.rb
      • main.rb
    • 00_intermediate_ruby_primer
      • main.rb
      • repl.rb
  • 01_rendering_basics
    • 01_labels
      • main.rb
    • 01_labels_text_wrapping
      • main.rb
    • 02_lines
      • main.rb
    • 03_solids_borders
      • main.rb
    • 04_sprites
      • main.rb
    • 05_sounds
      • main.rb
  • 02_input_basics
    • 01_keyboard
      • main.rb
    • 01_moving_a_sprite
      • main.rb
    • 02_mouse
      • main.rb
    • 03_mouse_point_to_rect
      • main.rb
    • 04_mouse_drag_and_drop
      • main.rb
    • 04_mouse_rect_to_rect
      • main.rb
    • 05_controller
      • main.rb
    • 06_touch
      • main.rb
    • 07_managing_scenes
      • main.rb
  • 03_rendering_sprites
    • 01_animation_using_separate_pngs
      • main.rb
    • 02_animation_using_sprite_sheet
      • main.rb
    • 03_animation_states
      • main.rb
    • 03_animation_states_advanced
      • main.rb
    • 03_animation_states_intermediate
      • main.rb
    • 04_color_and_rotation
      • main.rb
  • 04_physics_and_collisions
    • 01_simple
      • main.rb
    • 01_simple_aabb_collision
      • main.rb
    • 01_simple_aabb_collision_with_map_editor
      • main.rb
    • 02_moving_objects
      • main.rb
    • 03_entities
      • main.rb
    • 04_box_collision
      • main.rb
    • 05_box_collision_2
      • main.rb
    • 06_box_collision_3
      • main.rb
    • 07_jump_physics
      • main.rb
    • 08_bouncing_on_collision
      • ball.rb
      • block.rb
      • cannon.rb
      • main.rb
      • peg.rb
      • vector2d.rb
    • 09_arbitrary_collision
      • ball.rb
      • blocks.rb
      • linear_collider.rb
      • main.rb
      • paddle.rb
      • rectangle.rb
      • square_collider.rb
      • vector2d.rb
    • 10_collision_with_object_removal
      • ball.rb
      • linear_collider.rb
      • main.rb
      • paddle.rb
      • tests.rb
      • vector2d.rb
    • 11_bouncing_ball_with_gravity
      • main.rb
    • 11_quadtree_collision_detection
      • main.rb
    • 12_billiards
      • main.rb
    • 12_ramp_collision
      • main.rb
      • toolbar.rb
    • 13_billiards_with_gravity
      • lines.rb
      • main.rb
  • 05_mouse
    • 01_mouse_click
      • main.rb
    • 02_mouse_move
      • main.rb
    • 03_mouse_move_paint_app
      • main.rb
    • 04_coordinate_systems
      • main.rb
    • 05_clicking_buttons
      • main.rb
  • 06_save_load
    • 00_reading_writing_files
      • main.rb
    • 01_save_load_game
      • main.rb
  • 07_advanced_audio
    • 01_audio_mixer
      • main.rb
    • 02_sound_synthesis
      • main.rb
  • 07_advanced_rendering
    • 00_labels_with_wrapped_text
      • main.rb
    • 00_rotating_label
      • main.rb
    • 01_render_targets_clip_area
      • main.rb
    • 01_render_targets_combining_sprites
      • main.rb
    • 01_simple_render_targets
      • main.rb
    • 02_coordinate_systems_and_render_targets
      • main.rb
    • 02_render_targets_thick_lines
      • main.rb
    • 02_render_targets_with_tile_manipulation
      • main.rb
    • 03_render_target_viewports
      • main.rb
    • 04_render_primitive_hierarchies
      • main.rb
    • 05_render_primitives_as_hash
      • main.rb
    • 06_buttons_as_render_targets
      • main.rb
    • 06_pixel_arrays
      • main.rb
    • 06_pixel_arrays_from_file
      • main.rb
    • 07_shake_camera
      • main.rb
    • 07_simple_camera
      • main.rb
    • 07_simple_camera_multiple_targets
      • main.rb
    • 08_splitscreen_camera
      • main.rb
    • 09_z_targeting_camera
      • main.rb
    • 10_blend_modes
      • main.rb
    • 10_camera_and_large_map
      • main.rb
    • 11_blend_modes
      • main.rb
    • 11_render_target_noclear
      • main.rb
    • 12_lighting
      • main.rb
    • 12_render_target_noclear
      • main.rb
    • 13_lighting
      • main.rb
    • 13_triangles
      • main.rb
    • 14_triangles
      • main.rb
    • 14_triangles_trapezoid
      • main.rb
    • 15_matrix_and_triangles_2d
      • main.rb
    • 15_matrix_and_triangles_3d
      • main.rb
    • 15_matrix_cubeworld
      • main.rb
      • modeling-api.rb
    • 15_override_core_rendering
      • main.rb
    • 15_triangles_trapezoid
      • main.rb
    • 16_camera_space_world_space_simple
      • main.rb
    • 16_camera_space_world_space_simple_grid_map
      • main.rb
    • 16_matrix_and_triangles_2d
      • main.rb
    • 16_matrix_and_triangles_3d
      • main.rb
    • 16_matrix_camera_space_world_space
      • main.rb
    • 16_matrix_cubeworld
      • main.rb
      • modeling-api.rb
    • 16_override_core_rendering
      • main.rb
    • 17_override_core_rendering
      • main.rb
    • 18_layouts
      • main.rb
  • 07_advanced_rendering_hd
    • 01_hd_labels
      • main.rb
    • 02_texture_atlases
      • main.rb
    • 03_allscreen_properties
      • main.rb
    • 04_layouts_and_portrait_mode
      • main.rb
  • 08_tweening_lerping_easing_functions
    • 01_easing_functions
      • main.rb
    • 02_cubic_bezier
      • main.rb
    • 03_easing_using_spline
      • main.rb
    • 04_parametric_enemy_movement
      • main.rb
    • 04_pulsing_button
      • main.rb
    • 05_scene_transitions
      • main.rb
    • 06_animation_queues
      • main.rb
    • 07_animation_queues_advanced
      • main.rb
    • 08_cutscenes
      • main.rb
  • 09_performance
    • 01_sprites_as_hash
      • main.rb
    • 02_sprites_as_entities
      • main.rb
    • 03_sprites_as_strict_entities
      • main.rb
    • 03_sprites_as_struct
      • main.rb
    • 04_sprites_as_classes
      • main.rb
    • 04_sprites_as_strict_entities
      • main.rb
    • 05_sprites_as_classes
      • main.rb
    • 05_static_sprites_as_classes
      • main.rb
    • 06_static_sprites_as_classes
      • main.rb
    • 06_static_sprites_as_classes_with_custom_drawing
      • main.rb
    • 07_collision_limits
      • main.rb
    • 07_static_sprites_as_classes_with_custom_drawing
      • main.rb
    • 08_collision_limits
      • main.rb
    • 09_collision_limits_aabb
      • main.rb
    • 09_collision_limits_find_single
      • main.rb
    • 09_collision_limits_many_to_many
      • main.rb
  • 09_ui_controls
    • 01_checkboxes
      • main.rb
  • 10_advanced_debugging
    • 00_logging
      • main.rb
    • 01_trace_debugging
      • main.rb
    • 02_trace_debugging_classes
      • main.rb
    • 03_unit_tests
      • benchmark_api_tests.rb
      • exception_raising_tests.rb
      • fn_tests.rb
      • gen_docs.rb
      • geometry_tests.rb
      • http_tests.rb
      • input_emulation_tests.rb
      • nil_coercion_tests.rb
      • object_to_primitive_tests.rb
      • parsing_tests.rb
      • pretty_format_tests.rb
      • require_tests.rb
      • serialize_deserialize_tests.rb
      • state_serialization_experimental_tests.rb
      • suggest_autocompletion_tests.rb
  • 11_http
    • 01_retrieve_images
      • main.rb
    • 02_in_game_web_server_http_get
      • main.rb
    • 02_web_server
      • main.rb
    • 03_in_game_web_server_http_post
      • main.rb
  • 12_c_extensions
    • 01_basics
      • main.rb
    • 02_intermediate
      • main.rb
    • 03_native_pixel_arrays
      • main.rb
    • 04_handcrafted_extension
      • main.rb
    • 04_handcrafted_extension_advanced
      • main.rb
    • 05_ios_c_extensions
      • main.rb
  • 13_path_finding_algorithms
    • 01_breadth_first_search
      • main.rb
    • 02_detailed_breadth_first_search
      • main.rb
    • 03_breadcrumbs
      • main.rb
    • 04_early_exit
      • main.rb
    • 05_dijkstra
      • main.rb
    • 06_heuristic
      • main.rb
    • 07_heuristic_with_walls
      • main.rb
    • 08_a_star
      • main.rb
    • 09_tower_defense
      • main.rb
  • 13_rust_extensions
    • 01_basics
      • main.rb
    • 02_intermediate
      • main.rb
  • 14_vr
    • 01_skybox
      • main.rb
      • tick.rb
    • 02_top_down_rpg
      • main.rb
      • tick.rb
    • 03_space_invaders
      • main.rb
      • tick.rb
    • 04_let_there_be_light
      • main.rb
      • tick.rb
    • 05_draw_a_cube
      • main.rb
      • tick.rb
    • 05_draw_a_cube_with_triangles
      • main.rb
      • tick.rb
    • 05_gimbal_lock
      • main.rb
      • tick.rb
    • 06_citadels
      • main.rb
      • tick.rb
    • 07_flappy_vr
      • main.rb
      • tick.rb
    • 08_cubeworld_vr
      • main.rb
      • tick.rb
  • 99_genre_3d
    • 01_3d_cube
      • main.rb
    • 02_wireframe
      • main.rb
    • 03_yaw_pitch_roll
      • main.rb
    • 04_ray_caster
      • main.rb
    • 04_ray_caster_advanced
      • main.rb
  • 99_genre_arcade
    • bullet_hell
      • main.rb
    • dueling_starships
      • main.rb
    • flappy_dragon
      • main.rb
    • pong
      • main.rb
    • snakemoji
      • main.rb
    • solar_system
      • main.rb
    • sound_golf
      • main.rb
    • squares
      • main.rb
    • twinstick
      • main.rb
  • 99_genre_board_game
    • 01_fifteen_puzzle
      • main.rb
  • 99_genre_boss_battle
    • boss_battle_game_jam
      • main.rb
  • 99_genre_crafting
    • craft_game_starting_point
      • main.rb
    • farming_game_starting_point
      • main.rb
      • repl.rb
      • tests.rb
  • 99_genre_dev_tools
    • add_buttons_to_console
      • main.rb
    • animation_creator_starting_point
      • main.rb
    • frame_by_frame
      • main.rb
    • tile_editor_starting_point
      • main.rb
  • 99_genre_dungeon_crawl
    • classics_jam
      • main.rb
  • 99_genre_fighting
    • 01_special_move_inputs
      • main.rb
  • 99_genre_lowrez
    • nokia_3310
      • main.rb
      • nokia.rb
    • resolution_64x64
      • lowrez.rb
      • main.rb
  • 99_genre_mario
    • 01_jumping
      • main.rb
    • 02_jumping_and_collisions
      • main.rb
  • 99_genre_platformer
    • clepto_frog
      • main.rb
      • map.rb
    • gorillas_basic
      • main.rb
      • tests.rb
      • tests
        • building_generation_tests.rb
    • shadows
      • main.rb
    • the_little_probe
      • main.rb
  • 99_genre_rpg_narrative
    • choose_your_own_adventure
      • decision.rb
      • main.rb
    • return_of_serenity
      • lowrez_simulator.rb
      • main.rb
      • require.rb
      • storyline.rb
      • storyline_anka.rb
      • storyline_blinking_light.rb
      • storyline_day_one.rb
      • storyline_final_decision.rb
      • storyline_final_message.rb
      • storyline_serenity_alive.rb
      • storyline_serenity_bio.rb
      • storyline_serenity_introduction.rb
      • storyline_speed_of_light.rb
  • 99_genre_rpg_roguelike
    • 01_roguelike_starting_point
      • constants.rb
      • legend.rb
      • main.rb
      • sprite_lookup.rb
    • 02_roguelike_line_of_sight
      • main.rb
  • 99_genre_rpg_tactical
    • hexagonal_grid
      • main.rb
    • isometric_grid
      • main.rb
  • 99_genre_rpg_topdown
    • topdown_casino
      • main.rb
    • topdown_starting_point
      • main.rb
  • 99_genre_rpg_turn_based
    • turn_based_battle
      • main.rb
  • 99_genre_simulation
    • sand_simulation
      • main.rb
  • 99_genre_teenytiny
    • main.rb
    • teenytiny_starting_point
      • main.rb
  • 99_genre_twenty_second_games
    • twenty_second_starting_point
      • main.rb