Mercurial > repos > genjam1
annotate src/main.c @ 23:330e58fb01aa
simple object selection
author | William Morgan <bill@mrgn.org> |
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date | Mon, 13 Jan 2014 23:05:30 -0800 |
parents | b725a715b358 |
children | 2cee3dc5fe4d |
rev | line source |
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1 #include <genesis.h> |
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2 #include "creep.h" |
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3 #include "map.h" |
2
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4 |
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5 // I now realize this should be one tile that uses the flipping flags. oops. |
10 | 6 const u32 cursor_tiles[4*8] = { |
7 0x21100000, // top left | |
8 0x10000000, | |
9 0x10000000, | |
10 0x00000000, | |
11 0x00000000, | |
12 0x00000000, | |
13 0x00000000, | |
14 0x00000000, | |
15 | |
16 0x00000000, // bottom left | |
17 0x00000000, | |
18 0x00000000, | |
19 0x00000000, | |
20 0x00000000, | |
21 0x10000000, | |
22 0x10000000, | |
23 0x21100000, | |
24 | |
25 0x00000112, // top right | |
26 0x00000001, | |
27 0x00000001, | |
28 0x00000000, | |
29 0x00000000, | |
30 0x00000000, | |
31 0x00000000, | |
32 0x00000000, | |
33 | |
34 0x00000000, // bottom right | |
35 0x00000000, | |
36 0x00000000, | |
37 0x00000000, | |
38 0x00000000, | |
39 0x00000001, | |
40 0x00000001, | |
41 0x00000112, | |
42 | |
43 }; | |
44 | |
7
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45 u16 countdown; |
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46 |
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47 s16 cursor_x = 0; // tiles |
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48 s16 cursor_y = 0; // tiles |
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49 u16 cursor_selection = WALL; |
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50 #define CURSOR_BLINK_RATE 16 |
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51 #define CURSOR_WIDTH 2; // tiles |
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52 |
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53 #define PIXELS_PER_TILE 8 |
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54 |
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55 |
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56 u16 build_order[3] = { |
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57 EMPTY, |
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58 WALL, |
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59 TOWER, |
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60 }; |
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61 u8 build_order_size = 3; |
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62 u8 running = 0; |
10 | 63 |
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64 void clear_cursor() { |
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65 VDP_setTileMap(VDP_PLAN_A, 0, cursor_x, cursor_y); |
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66 VDP_setTileMap(VDP_PLAN_A, 0, cursor_x + 1, cursor_y); |
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67 VDP_setTileMap(VDP_PLAN_A, 0, cursor_x, cursor_y + 1); |
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68 VDP_setTileMap(VDP_PLAN_A, 0, cursor_x + 1, cursor_y + 1); |
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69 } |
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70 |
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71 void joy_event_handler(u16 joy, u16 changed, u16 state) { |
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72 u16 went_down = changed & state; |
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73 if (went_down & BUTTON_UP) { |
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74 clear_cursor(); |
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75 cursor_y -= CURSOR_WIDTH; |
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76 } |
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77 if (went_down & BUTTON_DOWN) { |
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78 clear_cursor(); |
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79 cursor_y += CURSOR_WIDTH; |
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80 } |
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81 if (went_down & BUTTON_LEFT) { |
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82 clear_cursor(); |
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83 cursor_x -= CURSOR_WIDTH; |
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84 } |
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85 if (went_down & BUTTON_RIGHT) { |
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86 clear_cursor(); |
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87 cursor_x += CURSOR_WIDTH; |
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88 } |
23 | 89 if (went_down & BUTTON_B && !running) { |
90 cursor_selection = (cursor_selection + 1) % GOAL; | |
91 } | |
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92 if (went_down & BUTTON_A && !running) { |
23 | 93 place_object(cursor_selection, cursor_x, cursor_y); |
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94 gen_distances(38, 14); |
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95 if (distances[122/16] == 0xFFFF) |
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96 { |
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97 place_object(EMPTY, cursor_x, cursor_y); |
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98 } |
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99 } |
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100 if (went_down & BUTTON_START) |
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101 { |
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102 running = 1; |
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103 } |
10 | 104 } |
105 | |
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106 int main(void) |
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107 { |
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108 JOY_init(); |
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109 JOY_setEventHandler(&joy_event_handler); |
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110 |
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111 u8 cursor_tile_index = 1; |
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112 VDP_loadTileData((const u32 *)cursor_tiles, cursor_tile_index, 4, 0); |
10 | 113 |
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114 u16 i; |
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115 VDP_setPlanSize(64, 32); |
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116 /*for (i = 6; i < 40*28; i += 4) |
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117 if ((i > 80 || i & 4) && (i < 40*26 || !(i & 4)) && i % 40 < 38) |
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118 { |
17 | 119 tilemap[i] = WALL; |
120 tilemap[i+1] = WALL; | |
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121 } |
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122 */ |
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123 place_object(GOAL, 38, 14); |
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124 place_object(SPAWN, 0, 14); |
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125 gen_distances(38, 14); |
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126 for (i = 0; i < MAX_SPRITE; i++) |
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127 { |
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128 spriteDefCache[i].posx = -0x80; |
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129 } |
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130 //print_distances(); |
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131 for (;;) |
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132 { |
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133 VDP_waitVSync(); |
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134 VDP_updateSprites(); |
23 | 135 if ((getTick() % CURSOR_BLINK_RATE) == 0 && !running) { |
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136 VDP_setTileMap(VDP_PLAN_A, tileinfo[cursor_selection][0], cursor_x, cursor_y); |
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137 VDP_setTileMap(VDP_PLAN_A, tileinfo[cursor_selection][1], cursor_x + 1, cursor_y); |
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138 VDP_setTileMap(VDP_PLAN_A, tileinfo[cursor_selection][2], cursor_x, cursor_y + 1); |
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139 VDP_setTileMap(VDP_PLAN_A, tileinfo[cursor_selection][3], cursor_x + 1, cursor_y + 1); |
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140 } |
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141 if ((getTick() % CURSOR_BLINK_RATE) == CURSOR_BLINK_RATE >> 1) { |
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142 clear_cursor(); |
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143 } |
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144 for (i = 0; i < 28; i++) |
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145 { |
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146 VDP_setTileMapRectByIndex(VDP_PLAN_B, tilemap + i*40, i*64, 40, 0); |
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147 } |
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148 VDP_setSprite(0, cursor_x * PIXELS_PER_TILE, cursor_y * PIXELS_PER_TILE, SPRITE_SIZE(2,2), TILE_ATTR_FULL(PAL0, 1, 0, 0, cursor_tile_index), spriteDefCache[0].link); |
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149 if (running) |
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150 { |
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151 if (countdown) |
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152 --countdown; |
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153 else if (cur_creeps < 4) |
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154 { |
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155 spawn_creep(CREEP_NORMAL, 0+4, 14*8+4); |
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156 countdown = 300; |
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157 } |
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158 update_creeps(); |
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159 } |
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Movec creep.h into the src folder. Added main loop
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
160 } |
8f23be2db808
Movec creep.h into the src folder. Added main loop
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
161 return 0; |
8f23be2db808
Movec creep.h into the src folder. Added main loop
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
162 } |