pixel

C++ implementation

struct State {
    int x,y;
    bool black,set=false;
};

{{ GENERATED_CODE }}

void evaluate(Context ctx) {
    auto display = getValue<input_DISPLAY>(ctx);
    auto state=getState(ctx);
    if(state->set){
        display->drawPixel(state->x,state->y,state->black?WHITE:BLACK);
    }
    auto point = getValue<input_POSITION>(ctx);
    state->x=point->x; state->y=point->y;
    state->black=getValue<input_BLACK>(ctx);
    state->set=true;
    display->drawPixel(state->x,state->y,state->black?BLACK:WHITE);
    display->display();
    emitValue<output_DONE>(ctx,1);
}