1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/*
* The ManaPlus Client
* Copyright (C) 2009-2010 The Mana Developers
* Copyright (C) 2011-2016 The ManaPlus Developers
*
* This file is part of The ManaPlus Client.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "resources/ambientlayer.h"
#include "const/render/graphics.h"
#include "render/graphics.h"
#include "resources/image.h"
#include "resources/imagehelper.h"
#include "resources/resourcemanager.h"
#include "debug.h"
AmbientLayer::AmbientLayer(Image *const img,
const float parallaxX,
const float parallaxY,
const float posX,
const float posY,
const float speedX,
const float speedY,
const bool keepRatio,
const int mask) :
mImage(img),
mParallaxX(parallaxX),
mParallaxY(parallaxY),
mPosX(posX),
mPosY(posY),
mSpeedX(speedX),
mSpeedY(speedY),
mMask(mask),
mKeepRatio(keepRatio)
{
if (!mImage)
return;
if (keepRatio &&
imageHelper->useOpenGL() == RENDER_SOFTWARE)
{
const int width = mainGraphics->mWidth;
const int height = mainGraphics->mHeight;
if (width != defaultScreenWidth && height != defaultScreenHeight)
{
// Rescale the overlay to keep the ratio as if we were on
// the default resolution...
Image *const rescaledOverlay = resourceManager->getRescaled(
mImage,
static_cast<int>(mImage->mBounds.w) /
defaultScreenWidth * width,
static_cast<int>(mImage->mBounds.h) /
defaultScreenHeight * height);
if (rescaledOverlay)
mImage = rescaledOverlay;
else
mImage->incRef();
return;
}
}
mImage->incRef();
}
AmbientLayer::~AmbientLayer()
{
if (mImage)
{
mImage->decRef();
mImage = nullptr;
}
}
void AmbientLayer::update(const int timePassed, const float dx, const float dy)
{
if (!mImage)
return;
const float time = static_cast<float>(timePassed) / 10;
// Self scrolling of the overlay
mPosX -= mSpeedX * time;
mPosY -= mSpeedY * time;
// Parallax scrolling
mPosX += dx * mParallaxX;
mPosY += dy * mParallaxY;
const SDL_Rect &rect = mImage->mBounds;
const float imgW = static_cast<float>(rect.w);
const float imgH = static_cast<float>(rect.h);
// Wrap values
while (mPosX > imgW)
mPosX -= imgW;
while (mPosX < 0)
mPosX += imgW;
while (mPosY > imgH)
mPosY -= imgH;
while (mPosY < 0)
mPosY += imgH;
}
void AmbientLayer::draw(Graphics *const graphics, const int x,
const int y) const
{
if (!mImage)
return;
if (imageHelper->useOpenGL() == RENDER_SOFTWARE ||
!mKeepRatio)
{
graphics->drawPattern(mImage, static_cast<int>(-mPosX),
static_cast<int>(-mPosY), x + static_cast<int>(mPosX),
y + static_cast<int>(mPosY));
}
else
{
graphics->drawRescaledPattern(mImage, static_cast<int>(-mPosX),
static_cast<int>(-mPosY), x + static_cast<int>(mPosX),
y + static_cast<int>(mPosY),
static_cast<int>(mImage->mBounds.w)
/ defaultScreenWidth * graphics->mWidth,
static_cast<int>(mImage->mBounds.h) / defaultScreenHeight
* graphics->mHeight);
}
}
|
