1// SuperTux
2// Copyright (C) 2006 Matthias Braun <matze@braunis.de>
3//
4// This program is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8//
9// This program is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12// GNU General Public License for more details.
13//
14// You should have received a copy of the GNU General Public License
15// along with this program. If not, see <http://www.gnu.org/licenses/>.
16
17#include "object/floating_text.hpp"
18
19#include <stdio.h>
20
21#include "supertux/resources.hpp"
22#include "video/drawing_context.hpp"
23
24FloatingText::FloatingText(const Vector& pos, const std::string& text_) :
25 position(pos),
26 text(text_),
27 timer()
28{
29 timer.start(.1f);
30 position.x -= static_cast<float>(text.size()) * 8.0f;
31}
32
33FloatingText::FloatingText(const Vector& pos, int score) :
34 position(pos),
35 text(),
36 timer()
37{
38 timer.start(.1f);
39
40 // turn int into a string
41 char str[10];
42 snprintf(str, 10, "%d", score);
43 text = str;
44
45 position.x -= static_cast<float>(text.size()) * 8.0f;
46}
47
48void
49FloatingText::update(float dt_sec)
50{
51 position.y -= 1.4f * dt_sec;
52
53 if (timer.check())
54 remove_me();
55}
56
57const float FADING_TIME = .350f;
58
59void
60FloatingText::draw(DrawingContext& context)
61{
62 // make an alpha animation when disappearing
63 float alpha;
64 if (timer.get_timeleft() < FADING_TIME)
65 alpha = timer.get_timeleft() * 255.0f / FADING_TIME;
66 else
67 alpha = 255.0f;
68
69 context.push_transform();
70 context.set_alpha(alpha);
71
72 context.color().draw_text(Resources::normal_font, text, position, ALIGN_LEFT, LAYER_OBJECTS+1, FloatingText::text_color);
73
74 context.pop_transform();
75}
76
77/* EOF */
78