463 lines
6.7 KiB
C++
463 lines
6.7 KiB
C++
|
//
|
||
|
|
// A thrust ship.
|
||
|
|
//
|
||
|
|
|
||
|
|
#include "always.h"
|
||
|
|
#include "game.h"
|
||
|
|
#include "land.h"
|
||
|
|
#include "log.h"
|
||
|
|
#include "os.h"
|
||
|
|
#include "ship.h"
|
||
|
|
#include "tb.h"
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// The ships.
|
||
|
|
//
|
||
|
|
|
||
|
|
SHIP_Ship SHIP_ship[SHIP_MAX_SHIPS];
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// Our ship texture.
|
||
|
|
//
|
||
|
|
|
||
|
|
OS_Texture *SHIP_ot;
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// The radius of our ship.
|
||
|
|
//
|
||
|
|
|
||
|
|
#define SHIP_RADIUS (1.0F)
|
||
|
|
|
||
|
|
|
||
|
|
void SHIP_init()
|
||
|
|
{
|
||
|
|
memset(SHIP_ship, 0, sizeof(SHIP_ship));
|
||
|
|
|
||
|
|
SHIP_ot = OS_texture_create("ship.tga");
|
||
|
|
}
|
||
|
|
|
||
|
|
SHIP_Ship *SHIP_create(float x, float y, float mass, float power)
|
||
|
|
{
|
||
|
|
SLONG i;
|
||
|
|
|
||
|
|
SHIP_Ship *ss;
|
||
|
|
|
||
|
|
for (i = 0; i < SHIP_MAX_SHIPS; i++)
|
||
|
|
{
|
||
|
|
ss = &SHIP_ship[i];
|
||
|
|
|
||
|
|
if (!(ss->flag & SHIP_FLAG_USED))
|
||
|
|
{
|
||
|
|
ss->flag = SHIP_FLAG_USED;
|
||
|
|
ss->tb = 255;
|
||
|
|
ss->red = 255;
|
||
|
|
ss->green = 255;
|
||
|
|
ss->blue = 255;
|
||
|
|
ss->x = x;
|
||
|
|
ss->y = y;
|
||
|
|
ss->dx = 0.0F;
|
||
|
|
ss->dy = 0.0F;
|
||
|
|
ss->angle = 0.0F;
|
||
|
|
ss->mass = mass;
|
||
|
|
ss->power = power;
|
||
|
|
|
||
|
|
return ss;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void SHIP_flag_active(SLONG gameturn)
|
||
|
|
{
|
||
|
|
SLONG i;
|
||
|
|
|
||
|
|
SHIP_Ship *ss;
|
||
|
|
|
||
|
|
for (i = 0; i < SHIP_MAX_SHIPS; i++)
|
||
|
|
{
|
||
|
|
ss = &SHIP_ship[i];
|
||
|
|
|
||
|
|
if (ss->flag & SHIP_FLAG_USED)
|
||
|
|
{
|
||
|
|
if (ss->active <= gameturn)
|
||
|
|
{
|
||
|
|
ss->flag |= SHIP_FLAG_ACTIVE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// Processes a particular ship.
|
||
|
|
//
|
||
|
|
|
||
|
|
void SHIP_process_one(SHIP_Ship *ss)
|
||
|
|
{
|
||
|
|
if (!(ss->flag & SHIP_FLAG_ACTIVE))
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
static counter;
|
||
|
|
|
||
|
|
LOG_file("Ship %5d = (%f,%f) %f = %f", counter, ss->x, ss->y, ss->angle, ss->x + ss->y + ss->angle);
|
||
|
|
|
||
|
|
{
|
||
|
|
union
|
||
|
|
{
|
||
|
|
ULONG a;
|
||
|
|
float b;
|
||
|
|
} u1;
|
||
|
|
|
||
|
|
union
|
||
|
|
{
|
||
|
|
ULONG a;
|
||
|
|
float b;
|
||
|
|
} u2;
|
||
|
|
|
||
|
|
union
|
||
|
|
{
|
||
|
|
ULONG a;
|
||
|
|
float b;
|
||
|
|
} u3;
|
||
|
|
|
||
|
|
u1.b = ss->x;
|
||
|
|
u2.b = ss->y;
|
||
|
|
u3.b = ss->x + ss->y;
|
||
|
|
|
||
|
|
LOG_file("%d,%d,%d\n", u1.a, u2.a, u3.a);
|
||
|
|
}
|
||
|
|
|
||
|
|
counter += 1;
|
||
|
|
|
||
|
|
if (ss->flag & SHIP_FLAG_KEY_LEFT) {ss->angle += 0.013F;}
|
||
|
|
if (ss->flag & SHIP_FLAG_KEY_RIGHT) {ss->angle -= 0.013F;}
|
||
|
|
|
||
|
|
if (ss->flag & SHIP_FLAG_KEY_THRUST)
|
||
|
|
{
|
||
|
|
ss->dx += ss->power * sin(ss->angle) * 0.00025F / ss->mass;
|
||
|
|
ss->dy -= ss->power * cos(ss->angle) * 0.00025F / ss->mass;
|
||
|
|
}
|
||
|
|
|
||
|
|
// if (WITHIN(counter,635,642))
|
||
|
|
{
|
||
|
|
union
|
||
|
|
{
|
||
|
|
float f;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
} v[4];
|
||
|
|
|
||
|
|
v[0].f = ss->x;
|
||
|
|
v[1].f = ss->y;
|
||
|
|
v[2].f = ss->dx;
|
||
|
|
v[3].f = ss->dy;
|
||
|
|
|
||
|
|
LOG_file("1: (%f,%f) (%f,%f) (%d,%d) (%d,%d)\n", v[0].f, v[1].f, v[2].f, v[3].f, v[0].i, v[1].i, v[2].i, v[3].i);
|
||
|
|
}
|
||
|
|
|
||
|
|
ss->dy -= 0.00007F;
|
||
|
|
|
||
|
|
// if (WITHIN(counter,635,642))
|
||
|
|
{
|
||
|
|
union
|
||
|
|
{
|
||
|
|
float f;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
} v[4];
|
||
|
|
|
||
|
|
v[0].f = ss->x;
|
||
|
|
v[1].f = ss->y;
|
||
|
|
v[2].f = ss->dx;
|
||
|
|
v[3].f = ss->dy;
|
||
|
|
|
||
|
|
LOG_file("2: (%f,%f) (%f,%f) (%d,%d) (%d,%d)\n", v[0].f, v[1].f, v[2].f, v[3].f, v[0].i, v[1].i, v[2].i, v[3].i);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (fabs(ss->dx) > 0.00004F) {ss->dx *= 0.999F;} else {ss->dx = 0.0F;}
|
||
|
|
if (fabs(ss->dy) > 0.00004F) {ss->dy *= 0.999F;} else {ss->dy = 0.0F;}
|
||
|
|
|
||
|
|
// if (WITHIN(counter,635,642))
|
||
|
|
{
|
||
|
|
union
|
||
|
|
{
|
||
|
|
float f;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
} v[4];
|
||
|
|
|
||
|
|
v[0].f = ss->x;
|
||
|
|
v[1].f = ss->y;
|
||
|
|
v[2].f = ss->dx;
|
||
|
|
v[3].f = ss->dy;
|
||
|
|
|
||
|
|
LOG_file("3: (%f,%f) (%f,%f) (%d,%d) (%d,%d)\n", v[0].f, v[1].f, v[2].f, v[3].f, v[0].i, v[1].i, v[2].i, v[3].i);
|
||
|
|
}
|
||
|
|
|
||
|
|
ss->x += ss->dx;
|
||
|
|
ss->y += ss->dy;
|
||
|
|
|
||
|
|
// if (WITHIN(counter,635,642))
|
||
|
|
{
|
||
|
|
union
|
||
|
|
{
|
||
|
|
float f;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
} v[4];
|
||
|
|
|
||
|
|
v[0].f = ss->x;
|
||
|
|
v[1].f = ss->y;
|
||
|
|
v[2].f = ss->dx;
|
||
|
|
v[3].f = ss->dy;
|
||
|
|
|
||
|
|
LOG_file("4: (%f,%f) (%f,%f) (%d,%d) (%d,%d)\n", v[0].f, v[1].f, v[2].f, v[3].f, v[0].i, v[1].i, v[2].i, v[3].i);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (ss->x < -SHIP_ARENA) {ss->dx = fabs(ss->dx);}
|
||
|
|
if (ss->y < -SHIP_ARENA) {ss->dy = fabs(ss->dy);}
|
||
|
|
if (ss->x > SHIP_ARENA) {ss->dx = -fabs(ss->dx);}
|
||
|
|
if (ss->y > SHIP_ARENA) {ss->dy = -fabs(ss->dy);}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Collide with the landscape.
|
||
|
|
//
|
||
|
|
|
||
|
|
float nx;
|
||
|
|
float ny;
|
||
|
|
|
||
|
|
ss->flag &= ~SHIP_FLAG_COLLIDED;
|
||
|
|
|
||
|
|
if (LAND_collide_sphere(ss->x, ss->y, SHIP_RADIUS, &nx, &ny))
|
||
|
|
{
|
||
|
|
LOG_file(" SHIP COLLISION! Ship pos = (%f,%f) vel = (%f,%f)\n", ss->x, ss->y, ss->dx, ss->dy);
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// Bounce the ship against the normal.
|
||
|
|
//
|
||
|
|
|
||
|
|
float dprod;
|
||
|
|
|
||
|
|
dprod = ss->dx*nx + ss->dy*ny;
|
||
|
|
|
||
|
|
{
|
||
|
|
union
|
||
|
|
{
|
||
|
|
float f;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
} v[4];
|
||
|
|
|
||
|
|
v[0].f = dprod;
|
||
|
|
|
||
|
|
LOG_file("5: %f %d\n", v[0].f, v[0].i);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
{
|
||
|
|
union
|
||
|
|
{
|
||
|
|
float f;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
} v[4];
|
||
|
|
|
||
|
|
v[0].f = nx;
|
||
|
|
v[1].f = ny;
|
||
|
|
v[2].f = nx * dprod * 2.0F;
|
||
|
|
v[3].f = ny * dprod * 2.0F;
|
||
|
|
|
||
|
|
LOG_file("6: (%f,%f) (%f,%f) (%d,%d) (%d,%d)\n", v[0].f, v[1].f, v[2].f, v[3].f, v[0].i, v[1].i, v[2].i, v[3].i);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
ss->dx -= nx * dprod * 2.0F;
|
||
|
|
ss->dy -= ny * dprod * 2.0F;
|
||
|
|
|
||
|
|
{
|
||
|
|
union
|
||
|
|
{
|
||
|
|
float f;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
} v[4];
|
||
|
|
|
||
|
|
v[0].f = ss->x;
|
||
|
|
v[1].f = ss->y;
|
||
|
|
v[2].f = ss->dx;
|
||
|
|
v[3].f = ss->dy;
|
||
|
|
|
||
|
|
LOG_file("7: (%f,%f) (%f,%f) (%d,%d) (%d,%d)\n", v[0].f, v[1].f, v[2].f, v[3].f, v[0].i, v[1].i, v[2].i, v[3].i);
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Make sure the ship is moving on a positive direction
|
||
|
|
// along the normal of the collision point.
|
||
|
|
//
|
||
|
|
|
||
|
|
dprod = ss->dx*nx + ss->dy*ny;
|
||
|
|
|
||
|
|
if (dprod < 0.0F)
|
||
|
|
{
|
||
|
|
ss->dx = -ss->dx;
|
||
|
|
ss->dy = -ss->dy;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
{
|
||
|
|
union
|
||
|
|
{
|
||
|
|
float f;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
} v[4];
|
||
|
|
|
||
|
|
v[0].f = dprod;
|
||
|
|
|
||
|
|
LOG_file("8: %f %d\n", v[0].f, v[0].i);
|
||
|
|
}
|
||
|
|
|
||
|
|
ss->x += ss->dx;
|
||
|
|
ss->y += ss->dy;
|
||
|
|
|
||
|
|
{
|
||
|
|
union
|
||
|
|
{
|
||
|
|
float f;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
} v[4];
|
||
|
|
|
||
|
|
v[0].f = ss->x;
|
||
|
|
v[1].f = ss->y;
|
||
|
|
v[2].f = ss->dx;
|
||
|
|
v[3].f = ss->dy;
|
||
|
|
|
||
|
|
LOG_file("9: (%f,%f) (%f,%f) (%d,%d) (%d,%d)\n", v[0].f, v[1].f, v[2].f, v[3].f, v[0].i, v[1].i, v[2].i, v[3].i);
|
||
|
|
}
|
||
|
|
|
||
|
|
ss->flag |= SHIP_FLAG_COLLIDED;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Create/destroy a tractor beam.
|
||
|
|
//
|
||
|
|
|
||
|
|
if (ss->flag & SHIP_FLAG_KEY_TRACTOR_BEAM)
|
||
|
|
{
|
||
|
|
ss->flag &= ~SHIP_FLAG_KEY_TRACTOR_BEAM;
|
||
|
|
|
||
|
|
if (ss->flag & SHIP_FLAG_TRACTORING)
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// Get rid of the current tractor beam.
|
||
|
|
//
|
||
|
|
|
||
|
|
TB_destroy(&TB_tb[ss->tb]);
|
||
|
|
|
||
|
|
//
|
||
|
|
// No longer got a tractor beam.
|
||
|
|
//
|
||
|
|
|
||
|
|
ss->flag &= ~SHIP_FLAG_TRACTORING;
|
||
|
|
ss->tb = 255;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
TB_Tb *tb;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Try to create a tractor beam.
|
||
|
|
//
|
||
|
|
|
||
|
|
tb = TB_create(ss, 5.0F);
|
||
|
|
|
||
|
|
if (tb)
|
||
|
|
{
|
||
|
|
ss->tb = tb - TB_tb;
|
||
|
|
ss->flag |= SHIP_FLAG_TRACTORING;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
void SHIP_process_all()
|
||
|
|
{
|
||
|
|
SLONG i;
|
||
|
|
|
||
|
|
SHIP_Ship *ss;
|
||
|
|
|
||
|
|
for (i = 0; i < SHIP_MAX_SHIPS; i++)
|
||
|
|
{
|
||
|
|
ss = &SHIP_ship[i];
|
||
|
|
|
||
|
|
if (!(ss->flag & SHIP_FLAG_USED))
|
||
|
|
{
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
SHIP_process_one(ss);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
void SHIP_draw_all(float mid_x, float mid_y, float zoom)
|
||
|
|
{
|
||
|
|
SLONG i;
|
||
|
|
ULONG colour;
|
||
|
|
|
||
|
|
SHIP_Ship *ss;
|
||
|
|
OS_Buffer *ob;
|
||
|
|
|
||
|
|
ob = OS_buffer_new();
|
||
|
|
|
||
|
|
for (i = 0; i < SHIP_MAX_SHIPS; i++)
|
||
|
|
{
|
||
|
|
ss = &SHIP_ship[i];
|
||
|
|
|
||
|
|
if (!(ss->flag & SHIP_FLAG_USED))
|
||
|
|
{
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
colour = ss->red << 16;
|
||
|
|
colour |= ss->green << 8;
|
||
|
|
colour |= ss->blue << 0;
|
||
|
|
|
||
|
|
if ((GAME_turn & 0x4) && !(ss->flag & SHIP_FLAG_ACTIVE))
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// Inactive ships flash.
|
||
|
|
//
|
||
|
|
|
||
|
|
colour &= 0x7f7f7f7f;
|
||
|
|
}
|
||
|
|
|
||
|
|
OS_buffer_add_sprite_rot(
|
||
|
|
ob,
|
||
|
|
0.5F + (ss->x - mid_x) * zoom,
|
||
|
|
0.5F - (ss->y - mid_y) * zoom * 1.33F,
|
||
|
|
SHIP_RADIUS * zoom,
|
||
|
|
ss->angle,
|
||
|
|
0.0F, 0.0F,
|
||
|
|
1.0F, 1.0F,
|
||
|
|
0.0F,
|
||
|
|
0xffffff);
|
||
|
|
}
|
||
|
|
|
||
|
|
OS_buffer_draw(ob, SHIP_ot, NULL, OS_DRAW_ADD);
|
||
|
|
}
|
||
|
|
|