1 /************************************************************************
2 * This file is part of Wizznic. *
3 * Copyright 2009-2015 Jimmy Christensen <dusted@dusted.dk> *
4 * Wizznic 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 * Wizznic 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 Wizznic. If not, see <http://www.gnu.org/licenses/>. *
16 ************************************************************************/
17
18 #include "levelselector.h"
19 #include <math.h>
20 #include "text.h"
21 #include "pixel.h"
22 #include "ticks.h"
23 #include "pack.h"
24 #include "defs.h"
25 #include "settings.h"
26
27 static int lastSelected = -1;
28 static SDL_Surface* lvlPreviewImg=0;
29 static char buf[128];
30 static char buf2[128];
31 static char buf3[128];
32
33
resetLevelSelector()34 void resetLevelSelector()
35 {
36 lastSelected=-1;
37 if(lvlPreviewImg)
38 {
39 SDL_FreeSurface(lvlPreviewImg);
40 lvlPreviewImg=0;
41 }
42 }
43
levelSelector(SDL_Surface * screen,int l,int stats)44 void levelSelector(SDL_Surface* screen, int l, int stats)
45 {
46
47 if(lastSelected != l)
48 {
49 //Unload the previously loaded level-preview
50 if(lastSelected != -1)
51 {
52 SDL_FreeSurface(lvlPreviewImg);
53 }
54 //Load the level-preview for the currently selected image
55 //printf("Loading file: %s\n",levelInfo(l)->imgFile);
56 lvlPreviewImg=loadImg(levelInfo(l)->imgFile);
57
58 //If it wasen't found, load the "No image" image
59 if(!lvlPreviewImg) lvlPreviewImg=loadImg("data/nolvlimg.png");
60
61 lastSelected=l;
62 sprintf(buf, "Level %i", l);
63 sprintf(buf2, "Time %i:%1.2i", levelInfo(l)->time/60, levelInfo(l)->time%60 );
64 sprintf(buf3,"By: %s", levelInfo(l)->author);
65 }
66
67 if(l+1 > getNumLevels()) stats=2;
68
69 drawPreviewImg(screen, lvlPreviewImg, stats);
70
71 if(stats!=2)
72 {
73
74 if(stats)
75 {
76 txtWriteCenter(screen, FONTMEDIUM, buf, HSCREENW,HSCREENH-22 );
77 txtWriteCenter(screen, FONTSMALL, levelInfo(l)->levelName, HSCREENW,HSCREENH);
78 txtWriteCenter(screen, FONTSMALL, buf3, HSCREENW,HSCREENH+12 );
79 txtWriteCenter(screen, FONTSMALL, buf2, HSCREENW,HSCREENH+36 );
80 } else {
81 txtWriteCenter(screen, FONTSMALL, "Locked!", HSCREENW,HSCREENH);
82 }
83 }
84 }
85
86
87
88 static float rot=0.0;
drawPreviewImg(SDL_Surface * screen,SDL_Surface * img,int stats)89 void drawPreviewImg(SDL_Surface* screen, SDL_Surface* img, int stats)
90 {
91 int x, y; //In the source image
92 int offSetX=HSCREENW-(55*2);
93 int offSetY=HSCREENH-(55*2);
94 int nx, ny; //new x/y value for px
95 uint32_t col; //Color of pixel
96 uint8_t r,g,b;
97 uint32_t grey;
98
99 float pxInc = 6.28318531/110.0;
100
101 float xInc;
102
103 rot-=(float)getTicks()/200;
104
105
106 for(y=0; y < 110; y++)
107 {
108 xInc = round(cos(rot+y*pxInc)*10);
109
110 for(x=0; x < 110; x++)
111 {
112 col = freadPixel(img, x, y );
113 //Do expensive colorkeying
114 r = ((col & img->format->Rmask) >> img->format->Rshift);
115 g = ((col & img->format->Gmask) >> img->format->Gshift);
116 b = ((col & img->format->Bmask) >> img->format->Bshift);
117
118 if( !isAlpha(r,g,b) )
119 {
120
121 //Do b/w
122 if(!stats)
123 {
124 grey = (r+g+b)/3;
125 col = (grey << img->format->Rshift) | (grey << img->format->Gshift)<<((setting()->bpp==2)?1:0) | (grey << img->format->Bshift);
126 }
127
128 nx = x*2;
129 ny = y*2;
130 nx += xInc;
131
132 plotPixel(screen, nx+offSetX,ny+offSetY, col);
133 }
134 }
135 }
136 }
137
