static bool powerup_help_render(float t) {
if(t != 0.0f)
game_update_empty();
UIElement* element = uidesc_get("powerup_help");
UIElement* text_elem2 = uidesc_get_child(element, "text2");
UIElement* text_elem3 = uidesc_get_child(element, "text3");
UIElement* star = uidesc_get_child(element, "star");
UIElement* item = uidesc_get_child(element, "item");
UIElement* button_quit = uidesc_get_child(element, "button_quit");
float state_alpha = 1.0f-fabsf(t);
byte a = lrintf(255.0f * state_alpha);
Color col = COLOR_RGBA(255, 255, 255, a);
spr_draw("blue_shade", hud_layer-1, rectf(0.0f, 0.0f, v_width, v_height), col);
static float xpos = 0.0f;
static float inc = 600.0f;
xpos = hud_scroll(xpos, inc, item_count, t);
for(uint i = 0; i < item_count; ++i) {
Vector2 off = vec2(xpos + i * inc, 0.0f);
float d = normalize(fabsf(off.x), 0.0f, inc * (item_count-1));
float scroll_alpha = 1.0f / exp(PI*d);
byte a2 = lrintf(255.0f * scroll_alpha * state_alpha);
Color col2 = COLOR_RGBA(255, 255, 255, a2);
// Star
spr_draw_cntr_h(star->spr, hud_layer, vec2_add(off, star->vec2), time_s()/10.0f, 1.0f, col2);
// Item
const char* item_img = powerup_params[i].unlocked_spr;
spr_draw_cntr(item_img, hud_layer, vec2_add(off, item->vec2), 0.0f, 1.0f, col2);
// Description text
const char* text3 = powerup_params[i].description;
vfont_select(FONT_NAME, 32.0f);
Vector2 half_size3 = vec2_scale(vfont_size(text3), 0.5f);
vfont_draw(text3, hud_layer+1, vec2_add(off, vec2_sub(text_elem3->vec2,half_size3)), col2);
// Item name
const char* text2 = powerup_params[i].name;
vfont_select(FONT_NAME, 48.0f);
Vector2 half_size2 = vec2_scale(vfont_size(text2), 0.5f);
vfont_draw(text2, hud_layer+1, vec2_add(off, vec2_sub(text_elem2->vec2,half_size2)), col2);
}
// Quit button
if(hud_button(button_quit, col, t)) {
malka_states_pop();
}
return true;
}
bool fadeout_render(float t) {
Color c = COLOR_FTRANSP(1.0f - fabsf(t));
c &= 0xFF000000;
RectF dest = {0.0f, 0.0f, v_width, v_height};
spr_draw("empty", fadeout_layer, dest, c);
return true;
}
