mirror of
https://github.com/sehugg/8bitworkshop.git
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132 lines
3.5 KiB
C
132 lines
3.5 KiB
C
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#include "common.h"
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//#link "common.c"
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#include "sprites.h"
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//#link "sprites.c"
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#define NUM_SPRITES 3
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/*{w:12,h:21,bpp:2,brev:1,wpimg:64,count:3,aspect:2}*/
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const char SPRITE_MC_DATA[64*NUM_SPRITES] = {
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0x0A,0xAA,0x80,0x0A,0xAA,0x80,0x2A,0xAA,
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0xA0,0x2A,0xAA,0xA0,0xAA,0xAA,0xAA,0xFF,
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0xD5,0x40,0x0D,0xD7,0x40,0x3D,0xD5,0x54,
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0x37,0x55,0x54,0x37,0x55,0x54,0x35,0x55,
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0x00,0x3A,0xA0,0x00,0xEA,0xA8,0x00,0xAB,
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0xAA,0x00,0xAB,0xAA,0x00,0xAB,0xAA,0x80,
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0xAA,0xEA,0x80,0xAA,0xAA,0x80,0x0F,0xFC,
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0x00,0x0F,0xFC,0x00,0x0F,0xFF,0xC0,0x00,
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0x02,0xAA,0xA0,0x02,0xAA,0xA0,0x0A,0xAA,
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0xA8,0x0A,0xAA,0xA8,0xAA,0xAA,0xAA,0x01,
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0x57,0xFF,0x01,0xD7,0x70,0x15,0x57,0x7C,
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0x15,0x55,0xDC,0x15,0x55,0xDC,0x00,0x55,
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0x5C,0x00,0x0A,0xAC,0x00,0x2A,0xAB,0x00,
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0xAA,0xEA,0x00,0xAA,0xEA,0x02,0xAA,0xEA,
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0x02,0xAB,0xAA,0x02,0xAA,0xAA,0x00,0x3F,
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0xF0,0x00,0x3F,0xF0,0x03,0xFF,0xF0,0x00,
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0x00,0xAA,0x80,0x02,0xAA,0xA0,0x0A,0xAA,0xA8,
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0x0A,0xAE,0xA8,0x0A,0xBB,0xA8,0x0A,0xBA,0xA8,
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0x0A,0xBB,0xA8,0x0A,0xAE,0xA8,0x0A,0xAA,0xA8,
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0x09,0xAA,0x98,0x08,0x6A,0x48,0x08,0x1D,0x08,
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0x02,0x0C,0x20,0x02,0x0C,0x20,0x02,0x0C,0x20,
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0x00,0x8C,0x80,0x00,0x8C,0x80,0x00,0x55,0x40,
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0x00,0x77,0x40,0x00,0x5D,0x40,0x00,0x15,0x00,
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0x80,
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};
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// starting index for sprites
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#define SPRITE_SHAPE 192
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// player data
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int player_x = 172;
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byte player_y = 145;
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byte faceleft = 0; // 0 = face right, 1 = face left
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void init_sprite_shapes(void) {
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byte i;
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for (i=0; i<NUM_SPRITES; i++) {
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sprite_shape(SPRITE_SHAPE+i, SPRITE_MC_DATA+64*i);
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}
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}
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void init_sprite_positions(void) {
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byte i;
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// setup sprite positions
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player_x = 172;
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player_y = 145;
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// set random positions for non-players
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// and draw them to sprite shadow buffer
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srand(7);
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for (i=1; i<8; i++) {
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int x = rand() % (320 - 24) + 24;
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byte y = rand() % (229 - 50) + 50;
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sprite_draw(i, x, y, SPRITE_SHAPE + 2);
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sprshad.spr_color[i] = i | 8;
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}
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}
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void move_player(byte joy) {
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// move sprite based on joystick
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if (JOY_LEFT(joy)) { player_x -= 1; faceleft = 1; } // move left 1 pixel
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if (JOY_RIGHT(joy)) { player_x += 1; faceleft = 0; } // move right 1 pixel
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if (JOY_UP(joy)) { player_y -= 1; } // move up 1 pixel
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if (JOY_DOWN(joy)) { player_y += 1; } // move down 1 pixel
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// draw player into sprite shadow buffer
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sprite_draw(0, player_x, player_y, SPRITE_SHAPE + faceleft);
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}
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void move_non_players(void) {
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byte i;
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// wiggle non-player sprites randomly
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for (i=1; i<8; i++) {
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sprshad.spr_pos[i].y += rand() & i;
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}
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}
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void main(void) {
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// variables
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byte bgcoll; // sprite background collision flags
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byte sprcoll; // sprite collision flags
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byte joy; // joystick flags
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clrscr();
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// install the joystick driver
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joy_install (joy_static_stddrv);
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// set multicolor sprites and colors
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sprshad.spr_mcolor = 0b11111111;
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sprshad.spr_color[0] = SPRITE_MC_DATA[63];
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VIC.spr_mcolor0 = COLOR_GRAY2;
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VIC.spr_mcolor1 = COLOR_BLACK;
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// setup sprites
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init_sprite_shapes();
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init_sprite_positions();
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// loop forever
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while (1) {
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// wait for end of frame
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waitvsync();
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// update sprite registers from sprite shadow
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// buffer before frame starts drawing
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sprite_update(DEFAULT_SCREEN);
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// get joystick bits
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joy = joy_read(0);
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move_player(joy);
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// move other objects
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move_non_players();
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// grab and reset collision flags
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sprcoll = VIC.spr_coll;
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bgcoll = VIC.spr_bg_coll;
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// change color when player collides with sprite
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sprshad.spr_color[0] = (sprcoll & 1) ? 10 : 3;
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}
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}
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