1 /*
2 * C version of the 'space' assembly demo.
3 *
4 * Little demo illustrating how to use the graphical possibilities
5 * of the GB (background, window and animated sprite)
6 * I have used fixed-point values for both the position and
7 * speed of objects to get smooth movements
8 *
9 * OBJ data : 0x8000 -> 0x8FFF (unsigned)
10 * Window data : 0x8800 -> 0x97FF (unsigned)
11 * Background data : 0x8800 -> 0x97FF (signed)
12 *
13 * Tiled 0xFC -> 0xFF are standard tiles (all black -> all white)
14 *
15 * Keys:
16 * Arrow keys : Change the speed (and direction) of the sprite
17 * Arrow keys + A : Change the speed (and direction) of the window
18 * Arrow keys + B : Change the speed (and direction) of the background
19 * START : Open/close the door
20 * SELECT : Basic fading effect
21 *
22 * Note that the window is kept in the lower right part of the screen
23 * since it can't be made transparent
24 */
25
26 #include <gb/gb.h>
27
28 const unsigned char std_data[] = {
29
30 /* Basic tiles (0xFC to 0xFF) */
31 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
32 0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,
33 0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,
34 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
35 };
36
37 const unsigned char earth_data[] = {
38
39 /* Tile 0x00 */
40 0x07,0x07,0x18,0x1F,0x32,0x2D,0x71,0x4E,0x70,0x4F,0xF8,0x87,0xF8,0x87,0xF8,0x87,
41 0xFC,0x83,0xFE,0x81,0x7F,0x40,0x7F,0x40,0x3F,0x20,0x1F,0x18,0x07,0x07,0x00,0x00,
42 0xC0,0xC0,0xF0,0x30,0x78,0x88,0x3C,0xC4,0x5C,0xA4,0x9E,0x62,0x3E,0xC2,0x3E,0xC2,
43 0x5E,0xA2,0x7E,0x82,0x0C,0xF4,0x0C,0xF4,0x98,0x68,0xB0,0x70,0xC0,0xC0,0x00,0x00,
44 0x07,0x07,0x1F,0x18,0x2F,0x30,0x4F,0x70,0x6F,0x50,0x9F,0xE0,0x9F,0xE0,0xBF,0xC0,
45 0xFF,0x80,0xB7,0xC8,0x63,0x5C,0x43,0x7C,0x3F,0x20,0x1F,0x18,0x07,0x07,0x00,0x00,
46 0xC0,0xC0,0xB0,0x70,0x18,0xE8,0x0C,0xF4,0x0C,0xF4,0x82,0x7E,0x82,0x7E,0x86,0x7A,
47 0xC6,0x3A,0xE6,0x1A,0xF4,0x0C,0xFC,0x04,0xF8,0x08,0xF0,0x30,0xC0,0xC0,0x00,0x00,
48
49 /* Tile 0x08 */
50 0x07,0x07,0x1E,0x19,0x20,0x3F,0x40,0x7F,0x42,0x7D,0x81,0xFE,0x81,0xFE,0x83,0xFC,
51 0xD7,0xA8,0xBB,0xC4,0x6E,0x51,0x7C,0x43,0x3F,0x20,0x1F,0x18,0x07,0x07,0x00,0x00,
52 0xC0,0xC0,0x70,0xB0,0xE8,0x18,0xF4,0x0C,0xF4,0x0C,0xFE,0x02,0xFE,0x02,0xFE,0x02,
53 0xFE,0x02,0x7E,0x82,0x3C,0xC4,0x3C,0xC4,0xF8,0x08,0xF0,0x30,0xC0,0xC0,0x00,0x00,
54 0x07,0x07,0x1B,0x1C,0x20,0x3F,0x40,0x7F,0x40,0x7F,0xE0,0x9F,0x90,0xEF,0x89,0xF6,
55 0x8D,0xF2,0x9F,0xE0,0x5E,0x61,0x6F,0x50,0x3F,0x20,0x1F,0x18,0x07,0x07,0x00,0x00,
56 0xC0,0xC0,0xB0,0x70,0x28,0xD8,0x04,0xFC,0x2C,0xD4,0x1E,0xE2,0x1E,0xE2,0x3E,0xC2,
57 0x7E,0x82,0xB6,0x4A,0xE4,0x1C,0xC4,0x3C,0xF8,0x08,0xF0,0x30,0xC0,0xC0,0x00,0x00,
58
59 /* Tile 0x10 */
60 0x07,0x07,0x18,0x1F,0x20,0x3F,0x40,0x7F,0x40,0x7F,0xEE,0x91,0xF1,0x8E,0xE0,0x9F,
61 0xE0,0x9F,0xF1,0x8E,0x71,0x4E,0x72,0x4D,0x3F,0x20,0x1F,0x18,0x07,0x07,0x00,0x00,
62 0xC0,0xC0,0xF0,0x30,0x08,0xF8,0x04,0xFC,0x04,0xFC,0x02,0xFE,0x02,0xFE,0x92,0x6E,
63 0xD6,0x2A,0xFE,0x02,0xEC,0x14,0xFC,0x04,0xF8,0x08,0xF0,0x30,0xC0,0xC0,0x00,0x00,
64 0x07,0x07,0x1D,0x1A,0x36,0x29,0x5C,0x63,0x6C,0x53,0xCE,0xB1,0x9F,0xE0,0x9E,0xE1,
65 0xAE,0xD1,0xBF,0xC0,0x47,0x78,0x47,0x78,0x2F,0x30,0x1F,0x18,0x07,0x07,0x00,0x00,
66 0xC0,0xC0,0x70,0xB0,0x08,0xF8,0x04,0xFC,0x04,0xFC,0xE2,0x1E,0x32,0xCE,0x0E,0xF2,
67 0x0E,0xF2,0x1E,0xE2,0x1C,0xE4,0x2C,0xD4,0xF8,0x08,0xF0,0x30,0xC0,0xC0,0x00,0x00,
68
69 /* Tile 0x18 */
70 0x07,0x07,0x1E,0x19,0x33,0x2C,0x49,0x76,0x42,0x7D,0xC4,0xBB,0xC1,0xBE,0xC1,0xBE,
71 0xE2,0x9D,0xF3,0x8C,0x78,0x47,0x78,0x47,0x3C,0x23,0x1C,0x1B,0x07,0x07,0x00,0x00,
72 0xC0,0xC0,0x70,0xB0,0x68,0x98,0xC4,0x3C,0xC4,0x3C,0xEE,0x12,0xF2,0x0E,0xE2,0x1E,
73 0xE2,0x1E,0xF2,0x0E,0x7C,0x84,0x7C,0x84,0xF8,0x08,0xF0,0x30,0xC0,0xC0,0x00,0x00
74 };
75
76 const unsigned char frame_data[] = {
77
78 /* Tile 0x00 */
79 0xFF,0x00,0x80,0x7F,0x80,0x7F,0x80,0x7F,0x80,0x7F,0x80,0x7F,0x80,0x7F,0x80,0x7F,
80 0xFF,0x00,0x01,0xFE,0x03,0xFC,0x07,0xF8,0x0F,0xF0,0x1F,0xE0,0x3F,0xC0,0x7F,0x80,
81 0xFF,0x00,0xFE,0x01,0xFC,0x03,0xF8,0x07,0xF0,0x0F,0xE0,0x1F,0xC0,0x3F,0x80,0x7F,
82 0xFF,0x00,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,
83 0xFF,0x00,0xFF,0x01,0xFD,0x03,0xF9,0x07,0xF1,0x0F,0xE1,0x1F,0xC1,0x3F,0x81,0x7F,
84 0x80,0x7F,0x81,0x7E,0x83,0x7C,0x87,0x78,0x8F,0x70,0x9F,0x60,0xBF,0x40,0xFF,0x00,
85 0xFF,0x70,0xFF,0x98,0xEF,0xB8,0xCF,0xF8,0xFF,0x70,0xFF,0x00,0xFF,0x00,0xFF,0x01,
86 0xFF,0x00,0xFE,0x01,0xFC,0x03,0xF8,0x07,0xF0,0x0F,0xE0,0x1F,0xC0,0x3F,0xFF,0xFF,
87
88 /* Tile 0x08 */
89 0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0xFF,0xFF,
90 0x00,0xFF,0x01,0xFE,0x03,0xFC,0x07,0xF8,0x0F,0xF0,0x1F,0xE0,0x3F,0xC0,0xFF,0xFF,
91 0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0xFF,
92 0xFF,0x0E,0xFF,0x13,0xFD,0x17,0xF9,0x1F,0xFE,0x0F,0xE0,0x1F,0xC0,0x3F,0x80,0xFF,
93 0x01,0xFF,0x01,0xFF,0x01,0xFF,0x01,0xFF,0x01,0xFF,0x01,0xFF,0x01,0xFF,0x01,0xFF,
94 0xFF,0x01,0xFF,0x01,0xFD,0x03,0xF9,0x07,0xF1,0x0F,0xE1,0x1F,0xC1,0x3F,0x81,0x7F,
95 0x80,0x7F,0x80,0x7F,0x80,0x7F,0x80,0x7F,0x80,0x7F,0x80,0x7F,0x80,0x7F,0x80,0x7F,
96 0x01,0xFF,0x01,0xFF,0x03,0xFD,0x07,0xF9,0x0F,0xF1,0x1F,0xE1,0x3F,0xC1,0x7F,0x81,
97
98 /* Tile 0x10 */
99 0xFF,0x01,0xFF,0x01,0xFF,0x01,0xFF,0x01,0xFF,0x01,0xFF,0x01,0xFF,0x01,0xFF,0x01,
100 0x01,0xFF,0x01,0xFE,0x03,0xFC,0x77,0xF8,0xFF,0x98,0xEF,0xB8,0xCF,0xF8,0x7F,0xF0,
101 0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x0E,0xFF,0x13,0xFD,0x17,0xF9,0x1F,0xFF,0x0E,
102 0x80,0x7F,0x81,0x7E,0x83,0x7C,0x87,0x78,0x8F,0x70,0x9F,0x60,0xBF,0x40,0xFF,0x7F,
103 0x01,0xFF,0x01,0xFF,0x01,0xFF,0x01,0xFF,0x01,0xFF,0x01,0xFF,0x01,0xFF,0xFF,0xFF,
104
105 /* Door1 */
106
107 /* Tile 0x15 */
108 0xFF,0x00,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0xFF,
109 0x00,0xFF,0x00,0xFF,0x00,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0xFF,0x00,0xFF,0x00,0xFF,
110 0x00,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0xFF,0xFF,
111
112 /* Door2 */
113
114 /* Tile 0x18 */
115 0x00,0xFF,0x00,0xFF,0x00,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0xFF,0x00,0xFF,0x00,0xFF,
116 0x00,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0xFF,0xFF,
117 0xFF,0x00,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0xFF,
118 0xFF,0x00,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
119
120 /* Door3 */
121
122 /* Tile 0x1C */
123 0x00,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0xFF,0xFF,
124 0xFF,0x00,0x00,0xFF,0x00,0xFF,0x00,0xFF,0x00,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0xFF,
125 0x00,0xFF,0x00,0xFF,0x00,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0xFF,0x00,0xFF,0x00,0xFF,
126 0x00,0xFF,0x00,0xFF,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
127
128 /* Door4 */
129
130 /* Tile 0x20 */
131 0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF
132 };
133
134 const unsigned char bkg_data[] = {
135
136 /* Tile 0x00 */
137 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xEF,0xFF,0xFF,0xFF,0xFF,
138 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xDF,0xFF,0xFF,0xFF,0xFF,
139 0xFF,0xFF,0xFF,0xFB,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
140 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF7,0xF7,0xFF,0xFF,
141 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xDF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
142 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,
143 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF7,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
144 0xFF,0xFF,0xDF,0xFF,0xEF,0xFF,0xFF,0xF7,0xFF,0xFB,0xFF,0xFD,0xFF,0xFE,0xFE,0xFF,
145
146 /* Tile 0x08 */
147 0xFF,0xFF,0xFF,0xFF,0xF7,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7D,0xFE,0x7C,0x39,
148 0xFF,0xFF,0xF7,0xFF,0xEF,0xFF,0xFF,0xDF,0xFF,0xBF,0xFF,0x7F,0xFF,0xFF,0xFF,0xFF,
149 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xDF,0xFF,0xFF,0xFF,0xFF,0xFF,
150 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,0xFF,0xFE,0xFF,0xFD,
151 0xBB,0x01,0xC7,0x83,0xC7,0x83,0xC7,0x83,0xBB,0x01,0x7C,0x39,0x7D,0xFE,0xFF,0xFF,
152 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFD,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,
153 0xFF,0xFF,0xFF,0xFF,0xFD,0xFF,0xFF,0xFE,0xFF,0xFF,0xFF,0x7F,0xFF,0xFF,0xFF,0xFF,
154 0xFF,0xFF,0xFF,0xFF,0xFD,0xFF,0xFF,0xFB,0xAF,0x77,0x27,0x8F,0xDF,0x8F,0x27,0x8F,
155
156 /* Tile 0x10 */
157 0xFF,0xFF,0xFF,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
158 0xFF,0xFB,0xFF,0xF7,0xEF,0xFF,0xDF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
159 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0xFF,0xFF,0xFB,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
160 0xFF,0xBF,0xFF,0xDF,0xEF,0xFF,0xF7,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
161 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFD,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
162 0xFF,0xFF,0xFF,0xFE,0xFD,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
163 0xAF,0x77,0xFF,0xFB,0xFD,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
164 0xFF,0xFF,0xFF,0xFD,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFB,0xFF,
165
166 /* Tile 0x18 */
167 0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0xFF,0xFF,
168 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF7,0xFF,0xFF,0xFF,0xFF,0xFF,
169 0xFF,0xFF,0xFF,0xFF,0xFF,0xFB,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,
170 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,0x7D,0xFE,0x7C,0x39,
171 0xFF,0xFF,0xF7,0xFF,0xEF,0xFF,0xFF,0xDF,0xFF,0xBF,0xFF,0x7F,0x7F,0xFF,0xFF,0xFF,
172 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xBF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFD,0xFF,0xFF,0xFF,
173 0xFF,0xFF,0xFF,0xFF,0xFF,0xEF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
174 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0xFD,
175
176 /* Tile 0x20 */
177 0xFF,0xFF,0xDF,0xFF,0xEF,0xFF,0xFF,0xF7,0xFF,0xFB,0xFE,0xFD,0xFD,0xFE,0xFE,0xFF,
178 0xAB,0x11,0xC7,0x83,0x83,0xC7,0xC7,0x83,0xAB,0x11,0x7C,0x39,0x7D,0xFE,0xFE,0xFF,
179 0xFF,0xFF,0xFF,0xFF,0xFB,0xDF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0xFF,0xFF,0x7F,
180 0xFB,0xFF,0xFF,0xFD,0xFE,0xFE,0xFE,0xFF,0xFE,0xFE,0xFF,0xFD,0xFB,0xFF,0xFF,0xFF,
181 0xEF,0xFF,0xFF,0xDF,0x3F,0xBF,0x3F,0x7F,0x3F,0xBF,0xFF,0xDF,0xEF,0xFF,0xFF,0xFF,
182 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xEF,0xFB,0xFF,0xFF,0xFF,0xFF,
183 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,0xFD,0xFE,0xFE,0xFD,
184 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFB,0xFF,0xFF,
185
186 /* Tile 0x28 */
187 0xF7,0xFF,0xFB,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
188 0xFF,0xFF,0xFF,0xFF,0xFF,0xBF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
189 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,
190 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFD,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
191 0xFF,0xFF,0xFF,0xFF,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF
192 };
193
194 /*
195 * Image size: 0x40 x 0x40
196 * Number of tiles (total - unique): 0x40 - 0x2D
197 */
198
199 const unsigned char bkg_tiles[] = {
200 0x00,0x01,0x02,0x03,0xFC,0xFC,0x04,0xFC,
201 0xFC,0x05,0x06,0xFC,0x07,0x08,0x09,0x0A,
202 0xFC,0xFC,0xFC,0x02,0x0B,0x0C,0x0D,0xFC,
203 0x0E,0x0F,0x10,0xFC,0x11,0x12,0x13,0x14,
204 0x15,0x16,0x17,0xFC,0x18,0x19,0x1A,0xFC,
205 0x1B,0x1C,0x1D,0xFC,0xFC,0x1E,0x1F,0x20,
206 0x21,0x22,0xFC,0x23,0x24,0x25,0xFC,0x26,
207 0x27,0x13,0x28,0x29,0x2A,0x2B,0x2C,0x11
208 };
209
210 /*
211 * Image size: 0x10 x 0x70
212 * Number of tiles (total - unique): 0x1C - 0x1C
213 */
214
215 const unsigned char earth_tiles[] = {
216 0x00,0x02,
217 0x04,0x06,
218 0x08,0x0A,
219 0x0C,0x0E,
220 0x10,0x12,
221 0x14,0x16,
222 0x18,0x1A
223 };
224
225 /*
226 * Image size: 0x80 x 0x50
227 * Number of tiles (total - unique): 0xA0 - 0x15
228 */
229
230 const unsigned char frame_tiles[] = {
231 0x80,0x81,0xFD,0x82,0x83,0x81,0xFD,0x82,0x83,0x81,0xFD,0x82,0x83,0x81,0xFD,0x84,
232 0x85,0x86,0x87,0x88,0x89,0x8A,0x87,0x88,0x89,0x8A,0x87,0x88,0x89,0x8A,0x8B,0x8C,
233 0xFD,0x8D,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x8E,0x8F,
234 0x82,0x8C,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x85,0x90,
235 0x8E,0x8F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFD,0x8D,
236 0x85,0x90,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x82,0x8C,
237 0xFD,0x8D,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x8E,0x8F,
238 0x82,0x8C,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x85,0x90,
239 0x8E,0x91,0xFD,0x82,0x83,0x81,0xFD,0x82,0x83,0x81,0xFD,0x82,0x83,0x81,0x92,0x8D,
240 0x93,0x8A,0x87,0x88,0x89,0x8A,0x87,0x88,0x89,0x8A,0x87,0x88,0x89,0x8A,0x87,0x94
241 };
242
243 /*
244 * Image size: 0x60 x 0x30
245 * Number of tiles (total - unique): 0x48 - 0x03
246 */
247
248 const unsigned char door1_tiles[] = {
249 0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,
250 0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,
251 0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,
252 0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,
253 0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,
254 0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,
255
256 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
257 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
258 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
259 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
260 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
261 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC
262 };
263
264 /*
265 * Image size: 0x60 x 0x30
266 * Number of tiles (total - unique): 0x48 - 0x04
267 */
268
269 const unsigned char door2_tiles[] = {
270 0x98,0x98,0x98,0x98,0x98,0x98,0x98,0x98,0x98,0x98,0x98,0x98,
271 0x99,0x99,0x99,0x99,0x99,0x99,0x99,0x99,0x99,0x99,0x99,0x99,
272 0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,
273 0x98,0x98,0x98,0x98,0x98,0x98,0x98,0x98,0x98,0x98,0x98,0x98,
274 0x99,0x99,0x99,0x99,0x99,0x99,0x99,0x99,0x99,0x99,0x99,0x99,
275 0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,
276
277 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
278 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
279 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
280 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
281 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
282 };
283
284 /*
285 * Image size: 0x60 x 0x30
286 * Number of tiles (total - unique): 0x48 - 0x04
287 */
288
289 const unsigned char door3_tiles[] = {
290 0x9C,0x9C,0x9C,0x9C,0x9C,0x9C,0x9C,0x9C,0x9C,0x9C,0x9C,0x9C,
291 0x9D,0x9D,0x9D,0x9D,0x9D,0x9D,0x9D,0x9D,0x9D,0x9D,0x9D,0x9D,
292 0x9E,0x9E,0x9E,0x9E,0x9E,0x9E,0x9E,0x9E,0x9E,0x9E,0x9E,0x9E,
293 0x9C,0x9C,0x9C,0x9C,0x9C,0x9C,0x9C,0x9C,0x9C,0x9C,0x9C,0x9C,
294 0x9D,0x9D,0x9D,0x9D,0x9D,0x9D,0x9D,0x9D,0x9D,0x9D,0x9D,0x9D,
295 0x9F,0x9F,0x9F,0x9F,0x9F,0x9F,0x9F,0x9F,0x9F,0x9F,0x9F,0x9F,
296
297 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
298 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
299 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
300 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
301 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC
302 };
303
304 /*
305 * Image size: 0x60 x 0x30
306 * Number of tiles (total - unique): 0x48 - 0x01
307 */
308
309 const unsigned char door4_tiles[] = {
310 0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,
311 0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,
312 0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,0x97,
313 0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,0x95,
314 0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,0x96,
315 0xA0,0xA0,0xA0,0xA0,0xA0,0xA0,0xA0,0xA0,0xA0,0xA0,0xA0,0xA0,
316
317 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
318 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
319 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
320 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
321 0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC
322 };
323
324 /* Should really be const, but sdcc doesnt yet support it. */
325 const unsigned char *film[] = {
326 &door1_tiles[0x0C*0],
327 &door2_tiles[0x0C*0],
328 &door3_tiles[0x0C*0],
329 &door4_tiles[0x0C*0],
330 &door1_tiles[0x0C*1],
331 &door2_tiles[0x0C*1],
332 &door3_tiles[0x0C*1],
333 &door4_tiles[0x0C*1],
334 &door1_tiles[0x0C*2],
335 &door2_tiles[0x0C*2],
336 &door3_tiles[0x0C*2],
337 &door4_tiles[0x0C*2],
338 &door1_tiles[0x0C*3],
339 &door2_tiles[0x0C*3],
340 &door3_tiles[0x0C*3],
341 &door4_tiles[0x0C*3],
342 &door1_tiles[0x0C*4],
343 &door2_tiles[0x0C*4],
344 &door3_tiles[0x0C*4],
345 &door4_tiles[0x0C*4],
346 &door1_tiles[0x0C*5],
347 &door2_tiles[0x0C*5],
348 &door3_tiles[0x0C*5],
349 &door4_tiles[0x0C*5],
350 &door1_tiles[0x0C*6]
351 };
352
353 #define NBDFRAMES 0x18 /* Nb frames for the door */
354 #define NBSFRAMES 0x07 /* Nb frames for the sprite */
355 #define WINSZX 0x80 /* Size of the picture in the window */
356 #define WINSZY 0x50
357 #define MINWINX (MAXWNDPOSX-WINSZX+1) /* Bounds of the window origin */
358 #define MINWINY (MAXWNDPOSY-WINSZY+1)
359 #define MAXWINX MAXWNDPOSX
360 #define MAXWINY MAXWNDPOSY
361 #define FADESTEP 0x10 /* Nb steps for the fading effect */
362 #define STARTFADE (0x06*FADESTEP) /* Initial value for the fading effect */
363
364 #define CLOSED 0x00
365 #define OPENING 0x01
366 #define OPENED 0x02
367 #define CLOSING 0x03
368
369 static uint8_t tim; /* Global "tim" value (counter) */
370 uint8_t doorstate; /* State of the door (OPENED, CLOSED...) */
371 uint8_t doorpos; /* Current position in the door animation */
372 static uint8_t color; /* Current color for fading effect */
373 uint8_t sframe; /* Current frame of the sprite */
374 fixed bposx, bposy; /* Background position (fixed point) */
375 fixed bspx, bspy; /* Background speed (fixed point) */
376 fixed wposx, wposy; /* Window position (fixed point) */
377 fixed wspx, wspy; /* Window speed (fixed point) */
378 fixed sposx, sposy; /* Sprite position (fixed point) */
379 fixed sspx, sspy; /* Sprite speed (fixed point) */
380
381 void fade();
382 void scroll();
383 void door();
384 void animate_sprite();
385 void tile_sprite();
386 void place_sprite();
387
388 /* Fade the screen (off and on) */
fade()389 void fade()
390 {
391 if(color == 0)
392 return;
393 switch(color)
394 {
395 case STARTFADE:
396 case STARTFADE-4*FADESTEP:
397 BGP_REG = 0xF9U;
398 break;
399 case STARTFADE-FADESTEP:
400 case STARTFADE-3*FADESTEP:
401 BGP_REG = 0xFEU;
402 break;
403 case STARTFADE-2*FADESTEP:
404 BGP_REG = 0xFFU;
405 break;
406 case STARTFADE-5*FADESTEP:
407 BGP_REG = 0xE4U;
408 break;
409 }
410 color--;
411 }
412
413 /* Scroll the background, the window and the sprite */
scroll()414 void scroll()
415 {
416 /* Update background */
417 bposx.w += bspx.w;
418 bposy.w += bspy.w;
419 SCX_REG = bposx.b.h;
420 SCY_REG = bposy.b.h;
421
422 /* Update window */
423 wposx.w += wspx.w ;
424 wposy.w += wspy.w ;
425 /* X position */
426 if(wposx.b.h >= MAXWINX) {
427 wposx.b.h = MAXWINX;
428 /* Invert speed */
429 wspx.w = -(int16_t)wspx.w;
430 } else if(wposx.b.h <= MINWINX) {
431 wposx.b.h = MINWINX;
432 /* Invert speed */
433 wspx.w = -(int16_t)wspx.w;
434 }
435 WX_REG = wposx.b.h;
436 /* Y position */
437 if(wposy.b.h >= MAXWINY) {
438 wposy.b.h = MAXWINY;
439 /* Invert speed */
440 wspy.w = -(int16_t)wspy.w;
441 } else if(wposy.b.h <= MINWINY) {
442 wposy.b.h = MINWINY;
443 /* Invert speed */
444 wspy.w = -(int16_t)wspy.w;
445 }
446 WY_REG = wposy.b.h;
447
448 /* Update sprite */
449 sposx.w += sspx.w;
450 sposy.w += sspy.w;
451 place_sprite();
452 }
453
454 /* Open and close the door */
door()455 void door()
456 {
457 if(doorstate == OPENING) {
458 doorpos++;
459 /* Draw the door in the window */
460 set_win_tiles(2, 2, 12, 6, film[doorpos]);
461 if(doorpos == NBDFRAMES)
462 doorstate = OPENED;
463 } else if(doorstate == CLOSING) {
464 doorpos--;
465 /* Draw the door in the window */
466 set_win_tiles(2, 2, 12, 6, film[doorpos]);
467 if(doorpos == 0)
468 doorstate = CLOSED;
469 }
470 }
471
472 /* Animate sprite */
animate_sprite()473 void animate_sprite()
474 {
475 if((tim&0x07) == 0) {
476 sframe++;
477 if(sframe == NBSFRAMES)
478 sframe = 0;
479 tile_sprite();
480 }
481 }
482
483 /* Set sprite tiles */
tile_sprite()484 void tile_sprite()
485 {
486 uint8_t s;
487
488 s = sframe<<1;
489 set_sprite_tile(0, earth_tiles[s]);
490 set_sprite_tile(1, earth_tiles[s+1]);
491 }
492
493 /* Place sprite */
place_sprite()494 void place_sprite()
495 {
496 move_sprite(0, sposx.b.h, sposy.b.h);
497 move_sprite(1, sposx.b.h+8, sposy.b.h);
498 }
499
main()500 void main()
501 {
502 uint8_t i, j;
503
504 disable_interrupts();
505 DISPLAY_OFF;
506 LCDC_REG = 0x67;
507 /*
508 * LCD = Off
509 * WindowBank = 0x9C00
510 * Window = On
511 * BG Chr = 0x8800
512 * BG Bank = 0x9800
513 * OBJ = 8x16
514 * OBJ = On
515 * BG = On
516 */
517
518 doorstate = CLOSED;
519
520 /* Set palettes */
521 BGP_REG = OBP0_REG = OBP1_REG = 0xE4U;
522
523 /* Initialize the background */
524 set_bkg_data(0xFC, 0x04, std_data);
525 set_bkg_data(0x00, 0x2D, bkg_data);
526 /*
527 * Draw the background
528 *
529 * Width = 0x100 = 0x20 * 8
530 * Height = 0x100 = 0x20 * 8
531 */
532 for(i = 0; i < 32; i+=8)
533 for(j = 0; j < 32; j+=8)
534 set_bkg_tiles(i, j, 8, 8, bkg_tiles);
535 bposx.w = 0;
536 SCX_REG = 0;
537 bposy.w = 0;
538 SCY_REG = 0;
539 bspx.w = 0xFF00;
540 bspy.w = 0x0080;
541
542 /* Initialize the window */
543 set_win_data(0x80, 0x21, frame_data);
544 /*
545 * Draw the frame in the window
546 *
547 * Width = 0x80 = 0x10 * 8
548 * Height = 0x50 = 0x0A * 8
549 */
550 set_win_tiles(0, 0, 16, 10, frame_tiles);
551 /*
552 * Draw the door in the window
553 *
554 * Width = 0x60 = 0x20 * 12
555 * Height = 0x30 = 0x20 * 6
556 */
557 set_win_tiles(2, 2, 12, 6, door1_tiles);
558 wposx.b.h = MAXWNDPOSX;
559 wposx.b.l = 0;
560 WX_REG = MAXWNDPOSX;
561 wposy.b.h = MAXWNDPOSY;
562 wposy.b.l = 0;
563 WY_REG = MAXWNDPOSY;
564 wspx.w = 0xFF80;
565 wspy.w = 0xFFC0;
566
567 /* Initialize the sprite */
568 set_sprite_data(0x00, 0x1C, earth_data);
569 set_sprite_prop(0, 0x00);
570 set_sprite_prop(1, 0x00);
571 sframe = 0;
572 sposx.w = 0x1000;
573 sposy.w = 0x1000;
574 sspx.w = 0x0040;
575 sspy.w = 0x0040;
576 tile_sprite();
577 place_sprite();
578
579 DISPLAY_ON;
580 enable_interrupts();
581
582 while(1) {
583 /* Skip four VBLs (slow down animation) */
584 for(i = 0; i < 4; i++)
585 wait_vbl_done();
586 tim++;
587 fade();
588 door();
589 scroll();
590 animate_sprite();
591 i = joypad();
592 if(i & J_B) {
593 if(i & J_UP)
594 bspy.w -= 0x0010;
595 if(i & J_DOWN)
596 bspy.w += 0x0010;
597 if(i & J_LEFT)
598 bspx.w -= 0x0010;
599 if(i & J_RIGHT)
600 bspx.w += 0x0010;
601 } else if(i & J_A) {
602 if(i & J_UP)
603 wspy.w -= 0x0010;
604 if(i & J_DOWN)
605 wspy.w += 0x0010;
606 if(i & J_LEFT)
607 wspx.w -= 0x0010;
608 if(i & J_RIGHT)
609 wspx.w += 0x0010;
610 } else {
611 if(i & J_SELECT)
612 color = STARTFADE;
613 if(i & J_START)
614 if(doorstate == CLOSED) {
615 doorstate = OPENING;
616 doorpos = 0;
617 } else if(doorstate == OPENED) {
618 doorstate = CLOSING;
619 doorpos = NBDFRAMES;
620 }
621 if(i & J_UP)
622 sspy.w -= 0x0010;
623 if(i & J_DOWN)
624 sspy.w += 0x0010;
625 if(i & J_LEFT)
626 sspx.w -= 0x0010;
627 if(i & J_RIGHT)
628 sspx.w += 0x0010;
629 }
630 }
631 }
632