index 219141884dd23ba9a59b2643135c78fcd83568e5..3acaa36a82a9a558f5501e349e5bc29c7e31171b 100644 (file)
--- a/game.c
+++ b/game.c
#include "game.h"
-#define SPEED 0.00006
-#define ROTATE 0.00004
-#define BULL_SPEED 0.008
+#define SPEED (0.03 / TICK)
+#define ROTATE (0.03 / TICK)
+#define BULL_SPEED (0.4 / TICK)
+
+#define MAX_SPEED (0.3 / TICK)
+#define MAX_ROTATE (0.3 / TICK)
+
+// Цифры взяты с потолка, но вроде неплохо подобраны
+#define G 3.673e-4
+#define M_STAR 10.0
+#define M_SHIP 0.1
Player g_player[MAX_PLAYERS];
Bullet g_bullet[MAX_BULLETS];
-void g_player_set(unsigned int id, bool live, float x, float y, float r, float vx, float vy, float vr) {
+static bool svmode;
+
+void g_player_set(unsigned int id, bool live, float x, float y, float r, float vx, float vy, float vr, int shoot) {
assert(id < MAX_PLAYERS);
g_player[id] = (Player) {
.updated = true,
static void moveplayer(int id, float speed) {
g_player[id].vx += speed * cos(g_player[id].r * 2 * M_PI);
g_player[id].vy += speed * sin(g_player[id].r * 2 * M_PI);
+
+ if(fabs(g_player[id].vx) > MAX_SPEED)
+ g_player[id].vx = copysignf(MAX_SPEED, g_player[id].vx);
+ if(fabs(g_player[id].vy) > MAX_SPEED)
+ g_player[id].vy = copysignf(MAX_SPEED, g_player[id].vy);
}
static void roteplayer(int id, float speed) {
g_player[id].vr += speed;
+ if(fabs(g_player[id].vr) > MAX_ROTATE)
+ g_player[id].vr = copysignf(MAX_ROTATE, g_player[id].vr);
}
static void fireplayer(int id) {
if(j < 0)
return;
- float vx = BULL_SPEED * cos(g_player[id].r * 2 * M_PI);
- float vy = BULL_SPEED * sin(g_player[id].r * 2 * M_PI);
- g_bullet_set(j, id, true, g_player[id].x, g_player[id].y, vx, vy, 0);
+ if(g_player[id].shoot < PLAYER_SHOOT)
+ return;
+
+ g_player[id].shoot = 0;
+
+ if(svmode) {
+ float vx = BULL_SPEED * cos(g_player[id].r * 2 * M_PI);
+ float vy = BULL_SPEED * sin(g_player[id].r * 2 * M_PI);
+ g_bullet_set(j, id, true, g_player[id].x, g_player[id].y, vx, vy, 0);
+ }
}
static void checkspacebound(float * a) {
*a = x;
}
+static float length(float x1, float y1, float x2, float y2) {
+ return sqrtf(powf(x1 - x2, 2) + powf(y1 - y2, 2));
+}
+
static bool collide(float x1, float y1, float r1, float x2, float y2, float r2) {
- float l = sqrtf(powf(x1 - x2, 2) + powf(y1 - y2, 2));
- return ((l - r1 - r2) <= 0);
+ return ((length(x1, y1, x2, y2) - r1 - r2) <= 0);
}
-void g_player_does(unsigned int id, DoesCode code) {
+static void gravity(float * vx, float * vy, float x, float y) {
+ *vx += copysign(G * M_STAR * M_SHIP / length(0, 0, x, y), x * -1);
+ *vy += copysign(G * M_STAR * M_SHIP / length(0, 0, x, y), y * -1);
+}
+
+void g_player_does(unsigned int id, DoesBits code) {
assert(id < MAX_PLAYERS);
- g_player[id].updated = true;
- switch(code) {
- case DOES_UP: moveplayer(id, SPEED); break;
- case DOES_DOWN: moveplayer(id, -SPEED); break;
- case DOES_LEFT: roteplayer(id, -ROTATE); break;
- case DOES_RIGHT: roteplayer(id, ROTATE); break;
- case DOES_FIRE: fireplayer(id); break;
- }
+
+ if(code.up)
+ moveplayer(id, SPEED);
+ if(code.down)
+ moveplayer(id, -SPEED);
+ if(code.left)
+ roteplayer(id, -ROTATE);
+ if(code.right)
+ roteplayer(id, ROTATE);
+ if(code.fire)
+ fireplayer(id);
}
void g_update() {
g_player[i].x += g_player[i].vx;
g_player[i].y += g_player[i].vy;
g_player[i].r += g_player[i].vr;
+
+ gravity(&g_player[i].vx, &g_player[i].vy, g_player[i].x, g_player[i].y);
+
checkspacebound(&g_player[i].x);
checkspacebound(&g_player[i].y);
+
+ ++g_player[i].shoot;
+ if(g_player[i].shoot > PLAYER_SHOOT)
+ g_player[i].shoot = PLAYER_SHOOT;
+
+ if(collide(g_player[i].x, g_player[i].y, PLAYER_SIZE, 0, 0, STAR_SIZE))
+ g_player[i].live = false;
}
}
}
}
}
+
+void g_init(bool server_mode) {
+ svmode = server_mode;
+ // TODO memset & co
+}