Momentum-Apps/apps_source_code/DVD-Bounce/dvdbounce.c

#include <string.h>
#include <furi.h>
#include <furi_hal.h>
#include <gui/gui.h>
#include <input/input.h>
#include "dvd_bounce_icons.h"


//init some variables
int x = 0;
int y = 0;
int mode = 0;
bool bounce_up = false;
bool bounce_right = true;
char mode_str[12];

//the thing to draw to the screen
static void app_draw_callback(Canvas* canvas, void* ctx) {
    UNUSED(ctx);
    canvas_clear(canvas);

    //draws the ball to positions x and y
    canvas_draw_icon(canvas, x, y, &I_Ok_btn_pressed_13x13);

    //displays the current mode
    canvas_set_font(canvas, FontSecondary);
    canvas_draw_str(canvas, 2, 8, "Mode:");
    //converts mode int to string
    itoa(mode, mode_str, 10);
    canvas_draw_str(canvas, 28, 8, mode_str);
    switch(mode){
        case 1:
            canvas_draw_str(canvas, 2, 16, "Left/Right");
            break;
        case 2:
            canvas_draw_str(canvas, 2, 16, "Up/Down");
            break;
        default:
            canvas_draw_str(canvas, 2, 16, "Normal");
            break;
    }
}

static void app_input_callback(InputEvent* input_event, void* ctx) {
    furi_assert(ctx);

    FuriMessageQueue* event_queue = ctx;
    furi_message_queue_put(event_queue, input_event, FuriWaitForever);
}

int32_t bounce_moment(void* p){
    UNUSED(p);
    FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(InputEvent));

    // Configure viewport
    ViewPort* view_port = view_port_alloc();
    view_port_draw_callback_set(view_port, app_draw_callback, view_port);
    view_port_input_callback_set(view_port, app_input_callback, event_queue);

    // Register viewport in GUI
    Gui* gui = furi_record_open(RECORD_GUI);
    gui_add_view_port(gui, view_port, GuiLayerFullscreen);

    InputEvent event;

    bool running = true;
    while(running) {
        if (furi_message_queue_get(event_queue, &event, 100) == FuriStatusOk) {
            if ((event.type == InputTypePress) || (event.type == InputTypeRepeat)) {
                //arrows move the ball by 10 in their respective directions
                switch (event.key) {

                    case InputKeyUp:
                        y += -10;
                        break;

                    case InputKeyDown:
                        y += 10;
                        break;

                    case InputKeyLeft:
                        x += -10;
                        break;

                    case InputKeyRight:
                        x += 10;
                        break;
                    //sets the ball to the middle of the screen and sets the current mode
                    case InputKeyOk:
                        x = 51;
                        y = 19;
                        if(mode == 2){
                            mode = 0;
                        }
                        else{
                            mode += 1;
                        }
                        break;
                    //exits the program if back is pressed
                    default:
                        running = false;
                        break;
                    
                }
            }
        }

        
        
            

        //bunch of conditionals determining how the ball should move
        if (x <= 0) {
            bounce_up = false;
        }
        if (x >= 115) {
            bounce_up = true;
        }
        if (y <= 0) {
            bounce_right = true;
        }
        if (y >= 51) {
            bounce_right = false;
        }

        if((bounce_up) && (mode != 2)){
            x += -1;
        }
        if((!bounce_up) && (mode != 2)){
            x += 1;
        }
        if((bounce_right) && (mode != 1)){
            y += 1;
        }
        if((!bounce_right) && (mode != 1)){
            y += -1;
        }

        
        view_port_update(view_port);
        
    }
    //cleanup go brrrrr
    view_port_enabled_set(view_port, false);
    gui_remove_view_port(gui, view_port);
    view_port_free(view_port);
    furi_message_queue_free(event_queue);

    furi_record_close(RECORD_GUI);


    return 0;
}