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
145
146
147
148
149
150
151
152
153
154
155
|
/** @file Texture.h
* @brief Defines a method for loading textures.
*
* This file gives facilities for easily loading and binding textures.
*/
#ifndef TEXTURE_H
#define TEXTURE_H
#include <common.hpp>
/**
* When defined, DEBUG allows extra messages to be printed to the terminal for
* debugging purposes.
*/
#define DEBUG
/**
* Texture functions are given a namespace for better organization.
*/
namespace Texture {
/**
* Loads a texture from the given file name, returning the GLuint used for
* later referencing of the texture.
*/
GLuint loadTexture(std::string fileName);
void freeTextures(void);
void initColorIndex();
vec2 getIndex(Color c);
dim2 imageDim(std::string fileName);
}
/**
* DRAFT texture iterator?
*/
class TextureIterator {
private:
std::vector<std::pair<GLuint, std::string>> textures;
std::vector<std::pair<GLuint, std::string>>::iterator position;
public:
TextureIterator(void) {
position = std::begin(textures);
}
TextureIterator(const std::vector<std::string> &l) {
for (const auto &s : l)
textures.emplace_back(Texture::loadTexture(s), s);
position = std::begin(textures);
}
void operator++(int) noexcept {
if (++position < std::end(textures))
glBindTexture(GL_TEXTURE_2D, (*position).first);
else
position = std::end(textures) - 1;
}
void operator--(int) noexcept {
if (--position >= std::begin(textures))
glBindTexture(GL_TEXTURE_2D, (*position).first);
else
position = std::begin(textures);
}
void operator()(const int &index) {
if (index < 0 || index > static_cast<int>(textures.size()))
throw std::invalid_argument("texture index out of range");
position = std::begin(textures) + index;
glBindTexture(GL_TEXTURE_2D, (*position).first);
}
const std::string& getTexturePath(const int &index) {
if (index < 0 || index > static_cast<int>(textures.size()))
throw std::invalid_argument("texture index out of range");
return textures[index].second;
}
};
/**
* The Texturec class.
*
* This class can handle an array of textures and allows easy binding of those
* textures.
*/
class Texturec{
private:
/**
* Contains the index in the image array of the currently loaded texture.
*/
unsigned int texState;
public:
/**
* Contains an array of the GLuints returned from Texture::loadTexture().
*/
std::vector<GLuint> image;
/**
* Contains the dimensions of each texture in the vector
*/
//TODO
//std::vector<vec2> imageDim;
/**
* Stores the location of all the images
*/
std::vector<std::string> texLoc;
/**
* Populates the image array from a list of strings, with each string as a
* separate argument.
*/
Texturec(uint amt, ...);
/**
* Populates the image array from an array of strings.
*/
Texturec(uint amt,const char **paths);
Texturec(std::vector<std::string>vec);
Texturec(std::initializer_list<std::string> l);
/**
* Frees memory taken by the image array.
*/
~Texturec();
/**
* Binds the next texture in the array, incrementing texState.
*/
void bindNext();
/**
* Binds the previous texture in the array, decrementing texState.
*/
void bindPrev();
/**
* Binds the texture with the provided index.
*/
void bind(unsigned int);
};
#endif //TEXTURE_H
|
