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examples

README.md

Examples

Runnable daslang examples organized by topic.

Getting Started

daslang.exe examples/hello_world.das
File Description
hello_world.das Minimal hello-world program

crash/ — Crash Handler Example

Demonstrates native crash handling with daslang + C++ stack traces. Built as a C++ executable (example_crash) that links libDaScriptDyn.

File Description
main.das daslang script that triggers a native crash via native_crash()
stack_overflow.das Stack overflow test case
main.cpp C++ host with crash handler integration

dasbind/ — Foreign Function Interface

File Description
dasbind_example.das Calling external C functions (Win32 API) via [extern] annotations

daslive/ — Live-Reload Examples

Examples for daslang-live.exe, the live-reloading application host. Scripts are edited and hot-reloaded without restarting. Run with:

daslang-live.exe examples/daslive/hello/main.das
Directory Description
hello/ Basic live-reload hello-world with OpenGL background color
triangle/ Live-reloading triangle rendering
tank_game/ Tank game example
reload_test/ Live-reload mechanism test
live_vars_demo/ Variable viewer demo
test_api/ REST API test
test_api_http/ HTTP API test
test_commands/ Live commands test
test_decs_reload/ DECS (ECS) reload test
test_watch/ Watch mechanism test

games/ — Game Examples

Full games built on top of daslang-live. Can also run standalone under daslang.exe (same script, both hosts drive the same init/update/shutdown lifecycle).

daslang-live.exe examples/games/arcanoid/main.das
Directory Description
arcanoid/ Breakout game: DECS, OpenGL, procedural audio, strudel music, 30+ live commands
sequence/ Sequence card board game: multi-module, bot AI, ELO tournament runner (requires daspkg install)

debugapi/ — Debug Agent Examples

Debug agents let you inspect and control program execution at runtime: allocation tracking, breakpoints, instrumentation, and stack walking.

All examples require options debugger = true.

File Description
allocation_tracking.das Heap allocation callbacks (onAllocate, onReallocate, onFree, onAllocateString, onFreeString)
hw_breakpoint.das Hardware data breakpoints that fire when a memory address is written
instrumentation.das Line-level and function-level instrumentation hooks for profiling and tracing
stack_walker.das DapiStackWalker for call-stack inspection and diagnostic collection

pathTracer/ — Path Tracer Demo

A toy path tracer implemented in daslang, with OpenGL visualization variants. Requires the stbimage module and (for OpenGL variants) dasGlfw / dasImgui.

File Description
path_tracer.das Core path-tracing module (shared code)
toy_path_tracer.das Console path tracer — renders to a .bmp file
toy_pathtracer_opengl_basic.das Real-time path tracer with basic OpenGL display
toy_path_tracer_opengl.das Real-time path tracer with progressive accumulation
toy_path_tracer_opengl_hdr.das Real-time path tracer with HDR tonemapping
toy_path_tracer_profile.das Path tracer performance benchmark

opengl/ — OpenGL Examples

Introductory OpenGL examples using the dasOpenGL and dasGlfw modules. Requires dasGlfw and dasOpenGL to be enabled in the build (DAS_GLFW_DISABLED=OFF).

daslang.exe examples/opengl/01_hello_triangle.das
File Description
01_hello_triangle.das Colored triangle with vertex/fragment shaders
02_hello_image.das Textured quad from a PNG image
03_hello_cube.das Rotating 3D cube with depth testing
04_hello_render_to_texture.das Render-to-texture via framebuffer objects
05_hello_compute.das Compute shader example
06_hello_ttf.das TrueType font rendering via opengl_ttf
07_hello_gen.das Procedural geometry generation via opengl_gen
09_hello_mesh.das OBJ mesh loading and rendering

Assets (image.png, droidsansmono.ttf, orb.obj) are bundled in the directory. The mesh and font were taken from BGFX examples.

uncategorized/ — Miscellaneous Examples

Standalone examples that don't fit neatly into other categories.

File Description
base64_generators.das Base64 encoder built as a chain of composable generators (deliberately slow — demonstrates generator composition, not production encoding)
shader_like_validation.das Shader-like mode demo — shows how options shader_like rejects heap-allocating constructs (arrays, lambdas, new) at simulation time
describe_function.das AST introspection — compiles a program at runtime and pretty-prints each function back to gen2 source via describe_function (daslib/ast)

hv/ — WebSocket Chat Example

A WebSocket chat room powered by the dashv module. The server serves an HTML page and speaks WebSocket on the same port.

File Description
ws_chat_server.das Chat server — serves chat.html at /, WebSocket at /chat
ws_chat_client.das Terminal chat client — type messages in the console
chat.html Standalone browser chat client

Start the server, open http://localhost:9090 in a browser, and/or run ws_chat_client.das in a terminal — all clients share the same chat room. See examples/hv/README.md for details.

audio/ — Audio Examples

Audio examples using the dasAudio module. Requires DAS_AUDIO_DISABLED=OFF and DAS_GLFW_DISABLED=OFF (for OpenGL-based examples).

daslang.exe examples/audio/hrtf/main.das
Directory Description
hrtf/main.das Interactive 3D HRTF demo — fly camera (WASD+mouse), sound sources as spheres, XZ grid. Press N to add a single source, M to add 30 sources in a ring (for stress testing)

minfft/ — FFT Example

FFT (Fast Fourier Transform) example using the built-in dasMinfft module. No setup required.

daslang.exe examples/minfft/main.das
File Description
main.das Compute FFT of a sine wave signal and print frequency bins

daspkg/ — Package Manager Examples

Example projects demonstrating the daspkg package manager. Each subdirectory is a self-contained project with a .das_package descriptor.

Directory Description
daspkg-example/ Minimal project that installs a package from the index
daspkg-build-example/ Project with a C++ build step (cmake_build)
daspkg-version-1/ Package versioning — pinning to version 1.x
daspkg-version-2/ Package versioning — pinning to version 2.x
packages/daspkg-example-c/ Template for a daspkg package with C sources
packages/daspkg-example-cpp/ Template for a daspkg package with C++ shared module
packages/daspkg-example-mixed/ Template for a mixed daslang + C++ package

telegram/ — Telegram Bot Example

A Telegram echo bot using the das-telegram daspkg package. Requires setup:

cd examples/telegram
daslang.exe ../../utils/daspkg/main.das -- install
File Description
echo_bot.das Telegram echo bot — replies with the same message

claude/ — Claude API Example

A daslang helper bot using the das-claude daspkg package (Anthropic API bindings). Requires setup:

cd examples/claude
daslang.exe ../../utils/daspkg/main.das -- install
File Description
daslang_helper_bot.das Interactive Claude-powered daslang coding assistant

graphics/ — ImGui Examples

ImGui examples using the dasImgui daspkg package. Requires setup:

cd examples/graphics
daslang.exe ../../utils/daspkg/main.das -- install
daslang.exe -project_root . furier_opengl_imgui_example.das
File Description
furier_opengl_imgui_example.das Fourier series visualization with ImGui controls

node-editor/ — Node Editor Example

imgui-node-editor example using dasImguiNodeEditor and dasImgui daspkg packages. Requires setup:

cd examples/node-editor
daslang.exe ../../utils/daspkg/main.das -- install
daslang.exe -project_root . imgui_node_editor_basic.das
File Description
imgui_node_editor_basic.das Two linked nodes in a fullscreen node-editor canvas
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