CTheEscape/c/CTheEscape

#include <stdio.h>
#include "swis.h"
#include <kernel.h>
#include <time.h>
#include "Sound.h"

// SWI Registers
_kernel_swi_regs inreg;
_kernel_swi_regs outreg;

// Sprite buffer
unsigned char *buffer;

extern struct CompositionElement composition[128];
extern int current_element;

#define DISPLAY_MODE 28
#define DISPLAY_X 1280
#define DISPLAY_Y 960

#define PLAYER_Y_START 100
#define PLAYER_X_SPEED 10
#define MAX_NPCS 5
#define MAX_STARS 49

enum sprite_e{player_ship, durno_ship,player_shipl,player_shipr};
char *sprites[] = {"player_ship","durno_ship","player_shipl","player_shipr"};

char hudbuffer[63];

enum font_e{sys_12_8,font_max};

enum colour_e{lcars_black,lcars_violet1,hotpink,stargrey1,stargrey2,stargrey3};
int colours[] = {0x11111100,0xc4727200,0xcc00ff00,0x66666600,0x22222200,0x44444400};
int font[font_max];

struct EntityLocation_s {
  short int X,Y;
};

struct NPC_s {
  struct EntityLocation_s location;
  enum sprite_e sprite;
  unsigned char velocity;
};

struct Star_s {
  struct EntityLocation_s location;
  int colour;
  unsigned char length;
};


struct Player_s {
  struct EntityLocation_s location;
  enum sprite_e sprite;
  unsigned char velocity;
  int shields;
  int integrity;
  int remainingdistance;
  struct EntityLocation_s hitbox_bl;
  struct EntityLocation_s hitbox_tr;
};

struct NPC_s NPCS[MAX_NPCS];
struct Player_s Player;
struct Star_s Stars[MAX_STARS];

int tick = 0;
int lasttick = 0;
extern int screen;
void intro()
{
  int currentstart = 0;

  sound_voices(4);

  sound_set_voice(1,"WaveSynth-Beep");
  sound_set_voice(2,"WaveSynth-Beep");
  sound_set_voice(3,"WaveSynth-Beep");
  sound_set_voice(4,"WaveSynth-Beep");
  sound_composition_init();
  
  // DUn, dun, daan duhhn
  sound_composition_element_add(currentstart,1,sound_note("A4#"),200);
  sound_composition_element_add(currentstart,2,sound_note("A5#"),200);
  currentstart += 200;
  sound_composition_element_add(currentstart,1,sound_note("F3"),200);
  sound_composition_element_add(currentstart,2,sound_note("F4"),200);
  currentstart += 200;
  sound_composition_element_add(currentstart,1,sound_note("G3#"),200);
  sound_composition_element_add(currentstart,2,sound_note("G4#"),200);
  currentstart += 200;
  sound_composition_element_add(currentstart,1,sound_note("C3"),200);
  sound_composition_element_add(currentstart,2,sound_note("C4"),200);
  currentstart += 200;

  // DUn, dun, daan duhhn
  sound_composition_element_add(currentstart,1,sound_note("A3#"),200);
  sound_composition_element_add(currentstart,2,sound_note("A4#"),200);
  currentstart += 200;
  sound_composition_element_add(currentstart,1,sound_note("F2"),200);
  currentstart += 200;
  sound_composition_element_add(currentstart,2,sound_note("G2#"),200);
  currentstart += 200;
  sound_composition_element_add(currentstart,1,sound_note("C2"),200);
  currentstart += 250;

  // Duh
  sound_composition_element_add(currentstart,3,sound_note("A3#"),300);
  sound_composition_element_add(currentstart,4,sound_note("A2#"),300);
  currentstart += 200;

  //REM Dun De Da
  sound_composition_element_add(currentstart,1,sound_note("F1"),20);
  currentstart += 50;
  sound_composition_element_add(currentstart,2,sound_note("A2#"),5);
  currentstart += 20;
  sound_composition_element_add(currentstart,1,sound_note("D2#"),200);
  currentstart += 180;


  sound_composition_element_add(currentstart,2,sound_note("D2"),50);
  currentstart += 50;
  sound_composition_element_add(currentstart,1,sound_note("A2#"),30);
  currentstart += 30;
  sound_composition_element_add(currentstart,2,sound_note("G1"),50);
  currentstart += 50;
  sound_composition_element_add(currentstart,1,sound_note("C2"),50);
  currentstart += 50;
  sound_composition_element_add(currentstart,3,sound_note("A2#"),100);
  sound_composition_element_add(currentstart,4,sound_note("F2"),100);
  currentstart += 100;
  
  draw_sprite("tng",320,400);
  sound_composition_start(clock());
  
  while(sound_composition_incomplete())
  {
    sound_composition_tick(clock());

    if(input_readkey(98))
      sound_composition_stop();
  }
}

void game_draw_player()
{
  draw_sprite(sprites[Player.sprite], Player.location.X, Player.location.Y);

  graphics_colour(colours[hotpink]);

  // Bounding box debug
  draw_rectangle(
    Player.location.X + Player.hitbox_bl.X,
    Player.location.Y + Player.hitbox_bl.Y,
    Player.location.X + Player.hitbox_tr.X,
    Player.location.Y + Player.hitbox_tr.Y
  );
}
void game_draw_stars()
{
  unsigned char i;



  for(i = 0; i <= MAX_STARS; i++)
  {
    graphics_colour(Stars[i].colour);
    draw_line(Stars[i].location.X,Stars[i].location.Y,Stars[i].location.X,Stars[i].location.Y+Stars[i].length);
  }
}

void game_setup_player()
{
  Player.location.X = DISPLAY_X/2;
  Player.location.Y = PLAYER_Y_START;
  Player.sprite = player_ship;
  Player.velocity = 100;
  Player.shields = 100;
  Player.integrity = 50;
  Player.remainingdistance = 1500000;
  Player.hitbox_bl.X = 0;
  Player.hitbox_bl.Y = 0;
  Player.hitbox_tr.X = 60;
  Player.hitbox_tr.Y = 81;
}

void game_tick_stars()
{
  unsigned char i;
  for(i = 0; i <= MAX_STARS; i++)
  {
    Stars[i].location.Y -= (tick - lasttick) * 2;
    if((Stars[i].location.Y + Stars[i].length) <= 0)
    {
      Stars[i].colour = colours[stargrey1 + (rand() % 2)];
      Stars[i].length = 30 + (rand() % 10);
      Stars[i].location.X = rand() % DISPLAY_X;
      Stars[i].location.Y = DISPLAY_Y + Stars[i].length;
    }
  }
}

void game_setup_stars()
{
  unsigned char i;
  for(i = 0; i <= MAX_STARS; i++)
  {
    Stars[i].colour = colours[stargrey1 + (rand() % 2)];
    Stars[i].length = 30 + (rand() % 10);
    Stars[i].location.X = rand() % DISPLAY_X;
    Stars[i].location.Y = rand() % DISPLAY_Y;
  }
}

void game_setup_input()
{
  /*
    inreg.r[0] = 4;
  inreg.r[1] = 1;
  _kernel_swi(OS_Byte,&inreg,&outreg);
  */
}

void game_input_tick()
{
  // Right arrow
  if(input_readkey(121))
  {
    Player.location.X += PLAYER_X_SPEED * (tick - lasttick);
    Player.sprite = player_shipr;
    // TODO: SHIP WIDTH
    if((Player.location.X + Player.hitbox_tr.X) > DISPLAY_X)
    {
      Player.location.X = DISPLAY_X - Player.hitbox_tr.X;
      Player.sprite = player_ship;
    }
  }

  // Left arrow
  if(input_readkey(25))
  {
    Player.location.X -= PLAYER_X_SPEED * (tick - lasttick);
    Player.sprite = player_shipl;
    if((Player.location.X + Player.hitbox_bl.X) < 0)
    {
      Player.location.X = 0 - Player.hitbox_bl.X;
      Player.sprite = player_ship;
    }
  }
}

void game_setup_audio()
{
  sound_voices(4);

  sound_set_voice(1,"WaveSynth-Beep");
  sound_set_voice(2,"Percussion-Noise");
  sound_set_voice(3,"Percussion-Soft");
  sound_set_voice(4,"Percussion-Noise");
}

void game_draw_hud()
{
  draw_sprite("lcars",4,DISPLAY_Y-180);

  font_colour(colours[lcars_black],colours[lcars_violet1],font[sys_12_8]);

  draw_text("Shields",75,DISPLAY_Y-62,font[sys_12_8]);
  draw_text("Integrity",75,DISPLAY_Y-92,font[sys_12_8]);
  draw_text("Velocity",75,DISPLAY_Y-122,font[sys_12_8]);
  draw_text("Distance",75,DISPLAY_Y-152,font[sys_12_8]);
  
  font_colour(colours[lcars_violet1],colours[lcars_black],font[sys_12_8]);

  sprintf(hudbuffer,"%i",Player.shields);
  draw_text(hudbuffer,230,DISPLAY_Y-62,font[sys_12_8]);
  
  sprintf(hudbuffer,"%i",Player.integrity);
  draw_text(hudbuffer,230,DISPLAY_Y-92,font[sys_12_8]);

  sprintf(hudbuffer,"%i",Player.velocity);
  draw_text(hudbuffer,230,DISPLAY_Y-122,font[sys_12_8]);

  sprintf(hudbuffer,"%i",Player.remainingdistance/1000);
  draw_text(hudbuffer,230,DISPLAY_Y-152,font[sys_12_8]);
}

void game_setup()
{
  game_setup_input();
  game_setup_audio();
  game_setup_stars();
  game_setup_player();
  tick = clock();
}

void game_tick_player()
{
  Player.remainingdistance -= Player.velocity * (tick - lasttick);
}

void game_tick()
{
  lasttick = tick;
  tick = clock();

  screen_flipbuffer();
  screen_clear();

  game_tick_stars();
  game_input_tick();
  game_tick_player();

  game_draw_stars();
  game_draw_player();

  game_draw_hud();
}

int main(int argc, char *argv[])
{
  sound_on();

  display_mode(DISPLAY_MODE);
  load_sprites("Spr");

  //intro();

  display_mode(DISPLAY_MODE);

  font[sys_12_8] = font_find("System.Medium",12,8);

  game_setup();
  
  while(1)
    game_tick();
  free(buffer);

  return 0;
}