librush sample: embedded font

gistfile1.cpp

#include <Rush/Rush.h>
#include <Rush/Platform.h>
#include <Rush/RenderPrimitiveBatch.h>
#include <Rush/GraphicsBitmapFont.h>

#include <stdio.h>

using namespace Rush;

RushAppConfig g_appConfig;
 

static PrimitiveBatch* g_prim = NULL;
static BitmapFont* g_font = NULL;
static BlendStateHandle g_blend_alpha;

static void startup(RushPlatformContext* context)
{
    RenderDevice* dev = RushPlatform_GetRenderDevice(context);

    g_prim = new PrimitiveBatch(dev);
    g_font = new BitmapFont(dev, BitmapFont::embedded_font_data());

    g_blend_alpha = dev->create_blend_state(BlendStateDescr::make_alphablend());
}

static void shutdown(RushPlatformContext* context)
{
    RenderDevice* dev = RushPlatform_GetRenderDevice(context);

    dev->destroy_blend_state(g_blend_alpha);
    
    delete g_font;
    delete g_prim;
}

static void draw(RushPlatformContext* context)
{
    RenderDevice* dev = RushPlatform_GetRenderDevice(context);
    RenderContext* rc = RushPlatform_GetRenderContext(context);

    rc->set_blend_state(g_blend_alpha);

    dev->clear(ColourRGBA8::Black());

    const RushAppConfig* cfg = RushPlatform_GetConfig(context);
    g_prim->begin_2d(cfg->width, cfg->height);

    Vector2 pos = Vector2(100,100);

    pos = g_font->draw_string(g_prim, pos, "Hello world!\n",  ColourRGBA8::Red());
    pos = g_font->draw_string(g_prim, pos, "This is line 2.", ColourRGBA8::Green());

    g_prim->end_2d();
}

int main()
{
    RushAppConfig_Init(&g_appConfig);

    g_appConfig.on_startup  = startup;
    g_appConfig.on_shutdown = shutdown;
    g_appConfig.on_draw     = draw;

    g_appConfig.name = "Font";

    g_appConfig.width  = 800;
    g_appConfig.height = 600;

    return RushPlatform_Run(&g_appConfig);
}