mirror of
https://github.com/Next-Flip/Momentum-Firmware.git
synced 2026-07-22 01:08:11 -07:00
Formatting & New updated IR
This commit is contained in:
VerstreuteSeele
@@ -32,42 +32,42 @@
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/* ============================ Data structures ============================= */
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typedef struct Ship {
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float x, /* Ship x position. */
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y, /* Ship y position. */
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vx, /* x velocity. */
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vy, /* y velocity. */
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rot; /* Current rotation. 2*PI full rotation. */
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float x, /* Ship x position. */
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y, /* Ship y position. */
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vx, /* x velocity. */
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vy, /* y velocity. */
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rot; /* Current rotation. 2*PI full rotation. */
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} Ship;
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typedef struct Bullet {
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float x, y, vx, vy; /* Fields like in ship. */
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uint32_t ttl; /* Time to live, in ticks. */
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float x, y, vx, vy; /* Fields like in ship. */
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uint32_t ttl; /* Time to live, in ticks. */
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} Bullet;
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typedef struct Asteroid {
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float x, y, vx, vy, rot, /* Fields like ship. */
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rot_speed, /* Angular velocity (rot speed and sense). */
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size; /* Asteroid size. */
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uint8_t shape_seed; /* Seed to give random shape. */
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float x, y, vx, vy, rot, /* Fields like ship. */
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rot_speed, /* Angular velocity (rot speed and sense). */
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size; /* Asteroid size. */
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uint8_t shape_seed; /* Seed to give random shape. */
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} Asteroid;
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#define MAXBUL 10 /* Max bullets on the screen. */
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#define MAXAST 32 /* Max asteroids on the screen. */
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#define MAXBUL 10 /* Max bullets on the screen. */
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#define MAXAST 32 /* Max asteroids on the screen. */
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#define SHIP_HIT_ANIMATION_LEN 15
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typedef struct AsteroidsApp {
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/* GUI */
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Gui *gui;
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ViewPort *view_port; /* We just use a raw viewport and we render
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Gui* gui;
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ViewPort* view_port; /* We just use a raw viewport and we render
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everything into the low level canvas. */
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FuriMessageQueue *event_queue; /* Key press events go here. */
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FuriMessageQueue* event_queue; /* Key press events go here. */
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/* Game state. */
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int running; /* Once false exists the app. */
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bool gameover; /* Game over status. */
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uint32_t ticks; /* Game ticks. Increments at each refresh. */
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uint32_t score; /* Game score. */
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uint32_t lives; /* Number of lives in the current game. */
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uint32_t ship_hit; /* When non zero, the ship was hit by an asteroid
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int running; /* Once false exists the app. */
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bool gameover; /* Game over status. */
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uint32_t ticks; /* Game ticks. Increments at each refresh. */
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uint32_t score; /* Game score. */
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uint32_t lives; /* Number of lives in the current game. */
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uint32_t ship_hit; /* When non zero, the ship was hit by an asteroid
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and we need to show an animation as long as
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its value is non-zero (and decrease it's value
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at each tick of animation). */
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@@ -76,26 +76,26 @@ typedef struct AsteroidsApp {
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struct Ship ship;
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/* Bullets state. */
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struct Bullet bullets[MAXBUL]; /* Each bullet state. */
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int bullets_num; /* Active bullets. */
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uint32_t last_bullet_tick; /* Tick the last bullet was fired. */
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struct Bullet bullets[MAXBUL]; /* Each bullet state. */
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int bullets_num; /* Active bullets. */
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uint32_t last_bullet_tick; /* Tick the last bullet was fired. */
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/* Asteroids state. */
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Asteroid asteroids[MAXAST]; /* Each asteroid state. */
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int asteroids_num; /* Active asteroids. */
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Asteroid asteroids[MAXAST]; /* Each asteroid state. */
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int asteroids_num; /* Active asteroids. */
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uint32_t pressed[InputKeyMAX]; /* pressed[id] is true if pressed.
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Each array item contains the time
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in milliseconds the key was pressed. */
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bool fire; /* Short press detected: fire a bullet. */
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bool fire; /* Short press detected: fire a bullet. */
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} AsteroidsApp;
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/* ============================== Prototypes ================================ */
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// Only functions called before their definition are here.
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void restart_game_after_gameover(AsteroidsApp *app);
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uint32_t key_pressed_time(AsteroidsApp *app, InputKey key);
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void restart_game_after_gameover(AsteroidsApp* app);
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uint32_t key_pressed_time(AsteroidsApp* app, InputKey key);
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/* ============================ 2D drawing ================================== */
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@@ -110,29 +110,21 @@ typedef struct Poly {
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} Poly;
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/* Define the polygons we use. */
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Poly ShipPoly = {
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{-3, 0, 3},
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{-3, 6, -3},
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3
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};
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Poly ShipPoly = {{-3, 0, 3}, {-3, 6, -3}, 3};
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Poly ShipFirePoly = {
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{-1.5, 0, 1.5},
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{-3, -6, -3},
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3
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};
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Poly ShipFirePoly = {{-1.5, 0, 1.5}, {-3, -6, -3}, 3};
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/* Rotate the point of the polygon 'poly' and store the new rotated
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* polygon in 'rot'. The polygon is rotated by an angle 'a', with
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* center at 0,0. */
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void rotate_poly(Poly *rot, Poly *poly, float a) {
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void rotate_poly(Poly* rot, Poly* poly, float a) {
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/* We want to compute sin(a) and cos(a) only one time
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* for every point to rotate. It's a slow operation. */
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float sin_a = (float)sin(a);
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float cos_a = (float)cos(a);
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for (uint32_t j = 0; j < poly->points; j++) {
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rot->x[j] = poly->x[j]*cos_a - poly->y[j]*sin_a;
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rot->y[j] = poly->y[j]*cos_a + poly->x[j]*sin_a;
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for(uint32_t j = 0; j < poly->points; j++) {
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rot->x[j] = poly->x[j] * cos_a - poly->y[j] * sin_a;
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rot->y[j] = poly->y[j] * cos_a + poly->x[j] * sin_a;
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}
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rot->points = poly->points;
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}
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@@ -140,36 +132,34 @@ void rotate_poly(Poly *rot, Poly *poly, float a) {
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/* This is an 8 bit LFSR we use to generate a predictable and fast
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* pseudorandom sequence of numbers, to give a different shape to
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* each asteroid. */
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void lfsr_next(unsigned char *prev) {
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void lfsr_next(unsigned char* prev) {
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unsigned char lsb = *prev & 1;
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*prev = *prev >> 1;
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if (lsb == 1) *prev ^= 0b11000111;
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*prev ^= *prev<<7; /* Mix things a bit more. */
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if(lsb == 1) *prev ^= 0b11000111;
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*prev ^= *prev << 7; /* Mix things a bit more. */
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}
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/* Render the polygon 'poly' at x,y, rotated by the specified angle. */
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void draw_poly(Canvas *const canvas, Poly *poly, uint8_t x, uint8_t y, float a)
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{
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void draw_poly(Canvas* const canvas, Poly* poly, uint8_t x, uint8_t y, float a) {
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Poly rot;
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rotate_poly(&rot,poly,a);
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rotate_poly(&rot, poly, a);
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canvas_set_color(canvas, ColorBlack);
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for (uint32_t j = 0; j < rot.points; j++) {
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for(uint32_t j = 0; j < rot.points; j++) {
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uint32_t a = j;
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uint32_t b = j+1;
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if (b == rot.points) b = 0;
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canvas_draw_line(canvas,x+rot.x[a],y+rot.y[a],
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x+rot.x[b],y+rot.y[b]);
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uint32_t b = j + 1;
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if(b == rot.points) b = 0;
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canvas_draw_line(canvas, x + rot.x[a], y + rot.y[a], x + rot.x[b], y + rot.y[b]);
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}
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}
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/* A bullet is just a + pixels pattern. A single pixel is not
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* visible enough. */
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void draw_bullet(Canvas *const canvas, Bullet *b) {
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canvas_draw_dot(canvas,b->x-1,b->y);
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canvas_draw_dot(canvas,b->x+1,b->y);
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canvas_draw_dot(canvas,b->x,b->y);
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canvas_draw_dot(canvas,b->x,b->y-1);
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canvas_draw_dot(canvas,b->x,b->y+1);
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void draw_bullet(Canvas* const canvas, Bullet* b) {
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canvas_draw_dot(canvas, b->x - 1, b->y);
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canvas_draw_dot(canvas, b->x + 1, b->y);
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canvas_draw_dot(canvas, b->x, b->y);
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canvas_draw_dot(canvas, b->x, b->y - 1);
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canvas_draw_dot(canvas, b->x, b->y + 1);
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}
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/* Draw an asteroid. The asteroid shapes is computed on the fly and
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@@ -177,15 +167,15 @@ void draw_bullet(Canvas *const canvas, Bullet *b) {
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* the shape, we use an initial fixed shape that we resize according
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* to the asteroid size, perturbed according to the asteroid shape
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* seed, and finally draw it rotated of the right amount. */
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void draw_asteroid(Canvas *const canvas, Asteroid *ast) {
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void draw_asteroid(Canvas* const canvas, Asteroid* ast) {
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Poly ap;
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/* Start with what is kinda of a circle. Note that this could be
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* stored into a template and copied here, to avoid computing
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* sin() / cos(). But the Flipper can handle it without problems. */
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uint8_t r = ast->shape_seed;
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for (int j = 0; j < 8; j++) {
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float a = (PI*2)/8*j;
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for(int j = 0; j < 8; j++) {
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float a = (PI * 2) / 8 * j;
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/* Before generating the point, to make the shape unique generate
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* a random factor between .7 and 1.3 to scale the distance from
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@@ -193,75 +183,73 @@ void draw_asteroid(Canvas *const canvas, Asteroid *ast) {
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* that remains always the same, so we use a predictable PRNG
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* implemented by an 8 bit shift register. */
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lfsr_next(&r);
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float scaling = .7+((float)r/255*.6);
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float scaling = .7 + ((float)r / 255 * .6);
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ap.x[j] = (float)sin(a) * ast->size * scaling;
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ap.y[j] = (float)cos(a) * ast->size * scaling;
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}
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ap.points = 8;
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draw_poly(canvas,&ap,ast->x,ast->y,ast->rot);
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draw_poly(canvas, &ap, ast->x, ast->y, ast->rot);
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}
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/* Draw small ships in the top-right part of the screen, one for
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* each left live. */
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void draw_left_lives(Canvas *const canvas, AsteroidsApp *app) {
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void draw_left_lives(Canvas* const canvas, AsteroidsApp* app) {
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int lives = app->lives;
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int x = SCREEN_XRES-5;
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int x = SCREEN_XRES - 5;
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Poly mini_ship = {
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{-2, 0, 2},
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{-2, 4, -2},
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3
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};
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Poly mini_ship = {{-2, 0, 2}, {-2, 4, -2}, 3};
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while(lives--) {
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draw_poly(canvas,&mini_ship,x,6,PI);
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draw_poly(canvas, &mini_ship, x, 6, PI);
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x -= 6;
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}
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}
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/* Given the current position, update it according to the velocity and
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* wrap it back to the other side if the object went over the screen. */
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void update_pos_by_velocity(float *x, float *y, float vx, float vy) {
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void update_pos_by_velocity(float* x, float* y, float vx, float vy) {
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/* Return back from one side to the other of the screen. */
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*x += vx;
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*y += vy;
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if (*x >= SCREEN_XRES) *x = 0;
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else if (*x < 0) *x = SCREEN_XRES-1;
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if (*y >= SCREEN_YRES) *y = 0;
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else if (*y < 0) *y = SCREEN_YRES-1;
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if(*x >= SCREEN_XRES)
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*x = 0;
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else if(*x < 0)
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*x = SCREEN_XRES - 1;
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if(*y >= SCREEN_YRES)
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*y = 0;
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else if(*y < 0)
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*y = SCREEN_YRES - 1;
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}
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/* Render the current game screen. */
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void render_callback(Canvas *const canvas, void *ctx) {
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AsteroidsApp *app = ctx;
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void render_callback(Canvas* const canvas, void* ctx) {
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AsteroidsApp* app = ctx;
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/* Clear screen. */
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canvas_set_color(canvas, ColorWhite);
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canvas_draw_box(canvas, 0, 0, SCREEN_XRES-1, SCREEN_YRES-1);
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canvas_draw_box(canvas, 0, 0, SCREEN_XRES - 1, SCREEN_YRES - 1);
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/* Draw score. */
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canvas_set_color(canvas, ColorBlack);
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canvas_set_font(canvas, FontSecondary);
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char score[32];
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snprintf(score,sizeof(score),"%lu",app->score);
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snprintf(score, sizeof(score), "%lu", app->score);
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canvas_draw_str(canvas, 0, 8, score);
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/* Draw left ships. */
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draw_left_lives(canvas,app);
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draw_left_lives(canvas, app);
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/* Draw ship, asteroids, bullets. */
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draw_poly(canvas,&ShipPoly,app->ship.x,app->ship.y,app->ship.rot);
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if (key_pressed_time(app,InputKeyOk) > SHIP_ACCELERATION_KEYPRESS_TIME)
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draw_poly(canvas,&ShipFirePoly,app->ship.x,app->ship.y,app->ship.rot);
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draw_poly(canvas, &ShipPoly, app->ship.x, app->ship.y, app->ship.rot);
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if(key_pressed_time(app, InputKeyOk) > SHIP_ACCELERATION_KEYPRESS_TIME)
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draw_poly(canvas, &ShipFirePoly, app->ship.x, app->ship.y, app->ship.rot);
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for (int j = 0; j < app->bullets_num; j++)
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draw_bullet(canvas,&app->bullets[j]);
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for(int j = 0; j < app->bullets_num; j++) draw_bullet(canvas, &app->bullets[j]);
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for (int j = 0; j < app->asteroids_num; j++)
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draw_asteroid(canvas,&app->asteroids[j]);
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for(int j = 0; j < app->asteroids_num; j++) draw_asteroid(canvas, &app->asteroids[j]);
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/* Game over text. */
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if (app->gameover) {
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if(app->gameover) {
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canvas_set_color(canvas, ColorBlack);
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canvas_set_font(canvas, FontPrimary);
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canvas_draw_str(canvas, 28, 35, "GAME OVER");
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@@ -273,9 +261,9 @@ void render_callback(Canvas *const canvas, void *ctx) {
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/* ============================ Game logic ================================== */
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float distance(float x1, float y1, float x2, float y2) {
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float dx = x1-x2;
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float dy = y1-y2;
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return sqrt(dx*dx+dy*dy);
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float dx = x1 - x2;
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float dy = y1 - y2;
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return sqrt(dx * dx + dy * dy);
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}
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/* Detect a collision between the object at x1,y1 of radius r1 and
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@@ -289,10 +277,7 @@ float distance(float x1, float y1, float x2, float y2) {
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* spheres (this is why this function only takes the radius). This
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* is, after all, kinda accurate for asteroids, for bullets, and
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* even for the ship "core" itself. */
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bool objects_are_colliding(float x1, float y1, float r1,
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float x2, float y2, float r2,
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float factor)
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{
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bool objects_are_colliding(float x1, float y1, float r1, float x2, float y2, float r2, float factor) {
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/* The objects are colliding if the distance between object 1 and 2
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* is smaller than the sum of the two radiuses r1 and r2.
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* So it would be like: sqrt((x1-x2)^2+(y1-y2)^2) < r1+r2.
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@@ -301,24 +286,24 @@ bool objects_are_colliding(float x1, float y1, float r1,
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* the comparison like this:
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*
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* (x1-x2)^2+(y1-y2)^2 < (r1+r2)^2. */
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float dx = (x1-x2)*factor;
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float dy = (y1-y2)*factor;
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float rsum = r1+r2;
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return dx*dx+dy*dy < rsum*rsum;
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float dx = (x1 - x2) * factor;
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float dy = (y1 - y2) * factor;
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float rsum = r1 + r2;
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return dx * dx + dy * dy < rsum * rsum;
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}
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/* Create a new bullet headed in the same direction of the ship. */
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void ship_fire_bullet(AsteroidsApp *app) {
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if (app->bullets_num == MAXBUL) return;
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Bullet *b = &app->bullets[app->bullets_num];
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void ship_fire_bullet(AsteroidsApp* app) {
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if(app->bullets_num == MAXBUL) return;
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Bullet* b = &app->bullets[app->bullets_num];
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b->x = app->ship.x;
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b->y = app->ship.y;
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b->vx = -sin(app->ship.rot);
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b->vy = cos(app->ship.rot);
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/* Ship should fire from its head, not in the middle. */
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b->x += b->vx*5;
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b->y += b->vy*5;
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b->x += b->vx * 5;
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b->y += b->vy * 5;
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/* Give the bullet some velocity (for now the vector is just
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* normalized to 1). */
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@@ -336,68 +321,68 @@ void ship_fire_bullet(AsteroidsApp *app) {
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}
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/* Remove the specified bullet by id (index in the array). */
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void remove_bullet(AsteroidsApp *app, int bid) {
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void remove_bullet(AsteroidsApp* app, int bid) {
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/* Replace the top bullet with the empty space left
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* by the removal of this bullet. This way we always take the
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* array dense, which is an advantage when looping. */
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int n = --app->bullets_num;
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if (n && bid != n) app->bullets[bid] = app->bullets[n];
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if(n && bid != n) app->bullets[bid] = app->bullets[n];
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}
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/* Create a new asteroid, away from the ship. Return the
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* pointer to the asteroid object, so that the caller can change
|
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* certain things of the asteroid if needed. */
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Asteroid *add_asteroid(AsteroidsApp *app) {
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if (app->asteroids_num == MAXAST) return NULL;
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float size = 4+rand()%15;
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Asteroid* add_asteroid(AsteroidsApp* app) {
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if(app->asteroids_num == MAXAST) return NULL;
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float size = 4 + rand() % 15;
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float min_distance = 20;
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float x,y;
|
||||
float x, y;
|
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do {
|
||||
x = rand() % SCREEN_XRES;
|
||||
y = rand() % SCREEN_YRES;
|
||||
} while(distance(app->ship.x,app->ship.y,x,y) < min_distance+size);
|
||||
Asteroid *a = &app->asteroids[app->asteroids_num++];
|
||||
} while(distance(app->ship.x, app->ship.y, x, y) < min_distance + size);
|
||||
Asteroid* a = &app->asteroids[app->asteroids_num++];
|
||||
a->x = x;
|
||||
a->y = y;
|
||||
a->vx = 2*(-.5 + ((float)rand()/RAND_MAX));
|
||||
a->vy = 2*(-.5 + ((float)rand()/RAND_MAX));
|
||||
a->vx = 2 * (-.5 + ((float)rand() / RAND_MAX));
|
||||
a->vy = 2 * (-.5 + ((float)rand() / RAND_MAX));
|
||||
a->size = size;
|
||||
a->rot = 0;
|
||||
a->rot_speed = ((float)rand()/RAND_MAX)/10;
|
||||
if (app->ticks & 1) a->rot_speed = -(a->rot_speed);
|
||||
a->rot_speed = ((float)rand() / RAND_MAX) / 10;
|
||||
if(app->ticks & 1) a->rot_speed = -(a->rot_speed);
|
||||
a->shape_seed = rand() & 255;
|
||||
return a;
|
||||
}
|
||||
|
||||
/* Remove the specified asteroid by id (index in the array). */
|
||||
void remove_asteroid(AsteroidsApp *app, int id) {
|
||||
void remove_asteroid(AsteroidsApp* app, int id) {
|
||||
/* Replace the top asteroid with the empty space left
|
||||
* by the removal of this one. This way we always take the
|
||||
* array dense, which is an advantage when looping. */
|
||||
int n = --app->asteroids_num;
|
||||
if (n && id != n) app->asteroids[id] = app->asteroids[n];
|
||||
if(n && id != n) app->asteroids[id] = app->asteroids[n];
|
||||
}
|
||||
|
||||
/* Called when an asteroid was reached by a bullet. The asteroid
|
||||
* hit is the one with the specified 'id'. */
|
||||
void asteroid_was_hit(AsteroidsApp *app, int id) {
|
||||
void asteroid_was_hit(AsteroidsApp* app, int id) {
|
||||
float sizelimit = 6; // Smaller than that, they disappear in one shot.
|
||||
Asteroid *a = &app->asteroids[id];
|
||||
Asteroid* a = &app->asteroids[id];
|
||||
|
||||
/* Asteroid is large enough to break into fragments. */
|
||||
float size = a->size;
|
||||
float x = a->x, y = a->y;
|
||||
remove_asteroid(app,id);
|
||||
if (size > sizelimit) {
|
||||
remove_asteroid(app, id);
|
||||
if(size > sizelimit) {
|
||||
int max_fragments = size / sizelimit;
|
||||
int fragments = 2+rand()%max_fragments;
|
||||
float newsize = size/fragments;
|
||||
if (newsize < 2) newsize = 2;
|
||||
for (int j = 0; j < fragments; j++) {
|
||||
int fragments = 2 + rand() % max_fragments;
|
||||
float newsize = size / fragments;
|
||||
if(newsize < 2) newsize = 2;
|
||||
for(int j = 0; j < fragments; j++) {
|
||||
a = add_asteroid(app);
|
||||
if (a == NULL) break; // Too many asteroids on screen.
|
||||
a->x = x + -(size/2) + rand() % (int)newsize;
|
||||
a->y = y + -(size/2) + rand() % (int)newsize;
|
||||
if(a == NULL) break; // Too many asteroids on screen.
|
||||
a->x = x + -(size / 2) + rand() % (int)newsize;
|
||||
a->y = y + -(size / 2) + rand() % (int)newsize;
|
||||
a->size = newsize;
|
||||
}
|
||||
} else {
|
||||
@@ -407,18 +392,19 @@ void asteroid_was_hit(AsteroidsApp *app, int id) {
|
||||
|
||||
/* Set game over state. When in game-over mode, the game displays a
|
||||
* game over text with a background of many asteroids floating around. */
|
||||
void game_over(AsteroidsApp *app) {
|
||||
void game_over(AsteroidsApp* app) {
|
||||
restart_game_after_gameover(app);
|
||||
app->gameover = true;
|
||||
int asteroids = 8;
|
||||
while(asteroids-- && add_asteroid(app) != NULL);
|
||||
while(asteroids-- && add_asteroid(app) != NULL)
|
||||
;
|
||||
}
|
||||
|
||||
/* Function called when a collision between the asteroid and the
|
||||
* ship is detected. */
|
||||
void ship_was_hit(AsteroidsApp *app) {
|
||||
void ship_was_hit(AsteroidsApp* app) {
|
||||
app->ship_hit = SHIP_HIT_ANIMATION_LEN;
|
||||
if (app->lives) {
|
||||
if(app->lives) {
|
||||
app->lives--;
|
||||
} else {
|
||||
game_over(app);
|
||||
@@ -427,10 +413,10 @@ void ship_was_hit(AsteroidsApp *app) {
|
||||
|
||||
/* Restart game after the ship is hit. Will reset the ship position, bullets
|
||||
* and asteroids to restart the game. */
|
||||
void restart_game(AsteroidsApp *app) {
|
||||
void restart_game(AsteroidsApp* app) {
|
||||
app->ship.x = SCREEN_XRES / 2;
|
||||
app->ship.y = SCREEN_YRES / 2;
|
||||
app->ship.rot = PI; /* Start headed towards top. */
|
||||
app->ship.rot = PI; /* Start headed towards top. */
|
||||
app->ship.vx = 0;
|
||||
app->ship.vy = 0;
|
||||
app->bullets_num = 0;
|
||||
@@ -440,22 +426,22 @@ void restart_game(AsteroidsApp *app) {
|
||||
|
||||
/* Called after game over to restart the game. This function
|
||||
* also calls restart_game(). */
|
||||
void restart_game_after_gameover(AsteroidsApp *app) {
|
||||
void restart_game_after_gameover(AsteroidsApp* app) {
|
||||
app->gameover = false;
|
||||
app->ticks = 0;
|
||||
app->score = 0;
|
||||
app->ship_hit = 0;
|
||||
app->lives = GAME_START_LIVES-1; /* -1 to account for current one. */
|
||||
app->lives = GAME_START_LIVES - 1; /* -1 to account for current one. */
|
||||
restart_game(app);
|
||||
}
|
||||
|
||||
/* Move bullets. */
|
||||
void update_bullets_position(AsteroidsApp *app) {
|
||||
for (int j = 0; j < app->bullets_num; j++) {
|
||||
update_pos_by_velocity(&app->bullets[j].x,&app->bullets[j].y,
|
||||
app->bullets[j].vx,app->bullets[j].vy);
|
||||
if (--app->bullets[j].ttl == 0) {
|
||||
remove_bullet(app,j);
|
||||
void update_bullets_position(AsteroidsApp* app) {
|
||||
for(int j = 0; j < app->bullets_num; j++) {
|
||||
update_pos_by_velocity(
|
||||
&app->bullets[j].x, &app->bullets[j].y, app->bullets[j].vx, app->bullets[j].vy);
|
||||
if(--app->bullets[j].ttl == 0) {
|
||||
remove_bullet(app, j);
|
||||
j--; /* Process this bullet index again: the removal will
|
||||
fill it with the top bullet to take the array dense. */
|
||||
}
|
||||
@@ -463,28 +449,28 @@ void update_bullets_position(AsteroidsApp *app) {
|
||||
}
|
||||
|
||||
/* Move asteroids. */
|
||||
void update_asteroids_position(AsteroidsApp *app) {
|
||||
for (int j = 0; j < app->asteroids_num; j++) {
|
||||
update_pos_by_velocity(&app->asteroids[j].x,&app->asteroids[j].y,
|
||||
app->asteroids[j].vx,app->asteroids[j].vy);
|
||||
void update_asteroids_position(AsteroidsApp* app) {
|
||||
for(int j = 0; j < app->asteroids_num; j++) {
|
||||
update_pos_by_velocity(
|
||||
&app->asteroids[j].x, &app->asteroids[j].y, app->asteroids[j].vx, app->asteroids[j].vy);
|
||||
app->asteroids[j].rot += app->asteroids[j].rot_speed;
|
||||
if (app->asteroids[j].rot < 0) app->asteroids[j].rot = 2*PI;
|
||||
else if (app->asteroids[j].rot > 2*PI) app->asteroids[j].rot = 0;
|
||||
if(app->asteroids[j].rot < 0)
|
||||
app->asteroids[j].rot = 2 * PI;
|
||||
else if(app->asteroids[j].rot > 2 * PI)
|
||||
app->asteroids[j].rot = 0;
|
||||
}
|
||||
}
|
||||
|
||||
/* Collision detection and game state update based on collisions. */
|
||||
void detect_collisions(AsteroidsApp *app) {
|
||||
void detect_collisions(AsteroidsApp* app) {
|
||||
/* Detect collision between bullet and asteroid. */
|
||||
for (int j = 0; j < app->bullets_num; j++) {
|
||||
Bullet *b = &app->bullets[j];
|
||||
for (int i = 0; i < app->asteroids_num; i++) {
|
||||
Asteroid *a = &app->asteroids[i];
|
||||
if (objects_are_colliding(a->x, a->y, a->size,
|
||||
b->x, b->y, 1.5, 1))
|
||||
{
|
||||
asteroid_was_hit(app,i);
|
||||
remove_bullet(app,j);
|
||||
for(int j = 0; j < app->bullets_num; j++) {
|
||||
Bullet* b = &app->bullets[j];
|
||||
for(int i = 0; i < app->asteroids_num; i++) {
|
||||
Asteroid* a = &app->asteroids[i];
|
||||
if(objects_are_colliding(a->x, a->y, a->size, b->x, b->y, 1.5, 1)) {
|
||||
asteroid_was_hit(app, i);
|
||||
remove_bullet(app, j);
|
||||
/* The bullet no longer exist. Break the loop.
|
||||
* However we want to start processing from the
|
||||
* same bullet index, since now it is used by
|
||||
@@ -496,11 +482,9 @@ void detect_collisions(AsteroidsApp *app) {
|
||||
}
|
||||
|
||||
/* Detect collision between ship and asteroid. */
|
||||
for (int j = 0; j < app->asteroids_num; j++) {
|
||||
Asteroid *a = &app->asteroids[j];
|
||||
if (objects_are_colliding(a->x, a->y, a->size,
|
||||
app->ship.x, app->ship.y, 4, 1))
|
||||
{
|
||||
for(int j = 0; j < app->asteroids_num; j++) {
|
||||
Asteroid* a = &app->asteroids[j];
|
||||
if(objects_are_colliding(a->x, a->y, a->size, app->ship.x, app->ship.y, 4, 1)) {
|
||||
ship_was_hit(app);
|
||||
break;
|
||||
}
|
||||
@@ -513,26 +497,26 @@ void detect_collisions(AsteroidsApp *app) {
|
||||
* on velocity. Detect collisions. Update the score and so forth.
|
||||
*
|
||||
* Each time this function is called, app->tick is incremented. */
|
||||
void game_tick(void *ctx) {
|
||||
AsteroidsApp *app = ctx;
|
||||
void game_tick(void* ctx) {
|
||||
AsteroidsApp* app = ctx;
|
||||
|
||||
/* There are two special screens:
|
||||
*
|
||||
* 1. Ship was hit, we frozen the game as long as ship_hit isn't zero
|
||||
* again, and show an animation of a rotating ship. */
|
||||
if (app->ship_hit) {
|
||||
if(app->ship_hit) {
|
||||
app->ship.rot += 0.5;
|
||||
app->ship_hit--;
|
||||
view_port_update(app->view_port);
|
||||
if (app->ship_hit == 0) {
|
||||
if(app->ship_hit == 0) {
|
||||
restart_game(app);
|
||||
}
|
||||
return;
|
||||
} else if (app->gameover) {
|
||||
/* 2. Game over. We need to update only background asteroids. In this
|
||||
} else if(app->gameover) {
|
||||
/* 2. Game over. We need to update only background asteroids. In this
|
||||
* state the game just displays a GAME OVER text with the floating
|
||||
* asteroids in background. */
|
||||
if (key_pressed_time(app,InputKeyOk) > 100) {
|
||||
if(key_pressed_time(app, InputKeyOk) > 100) {
|
||||
restart_game_after_gameover(app);
|
||||
}
|
||||
update_asteroids_position(app);
|
||||
@@ -541,12 +525,12 @@ void game_tick(void *ctx) {
|
||||
}
|
||||
|
||||
/* Handle key presses. */
|
||||
if (app->pressed[InputKeyLeft]) app->ship.rot -= .35;
|
||||
if (app->pressed[InputKeyRight]) app->ship.rot += .35;
|
||||
if (key_pressed_time(app,InputKeyOk) > SHIP_ACCELERATION_KEYPRESS_TIME) {
|
||||
app->ship.vx -= 0.5*(float)sin(app->ship.rot);
|
||||
app->ship.vy += 0.5*(float)cos(app->ship.rot);
|
||||
} else if (app->pressed[InputKeyDown]) {
|
||||
if(app->pressed[InputKeyLeft]) app->ship.rot -= .35;
|
||||
if(app->pressed[InputKeyRight]) app->ship.rot += .35;
|
||||
if(key_pressed_time(app, InputKeyOk) > SHIP_ACCELERATION_KEYPRESS_TIME) {
|
||||
app->ship.vx -= 0.5 * (float)sin(app->ship.rot);
|
||||
app->ship.vy += 0.5 * (float)cos(app->ship.rot);
|
||||
} else if(app->pressed[InputKeyDown]) {
|
||||
app->ship.vx *= 0.75;
|
||||
app->ship.vy *= 0.75;
|
||||
}
|
||||
@@ -554,10 +538,10 @@ void game_tick(void *ctx) {
|
||||
/* Fire a bullet if needed. app->fire is set in
|
||||
* asteroids_update_keypress_state() since depends on exact
|
||||
* pressure timing. */
|
||||
if (app->fire) {
|
||||
if(app->fire) {
|
||||
uint32_t bullet_min_period = 200; // In milliseconds
|
||||
uint32_t now = furi_get_tick();
|
||||
if (now - app->last_bullet_tick >= bullet_min_period) {
|
||||
if(now - app->last_bullet_tick >= bullet_min_period) {
|
||||
ship_fire_bullet(app);
|
||||
app->last_bullet_tick = now;
|
||||
}
|
||||
@@ -565,7 +549,7 @@ void game_tick(void *ctx) {
|
||||
}
|
||||
|
||||
/* Update positions and detect collisions. */
|
||||
update_pos_by_velocity(&app->ship.x,&app->ship.y,app->ship.vx,app->ship.vy);
|
||||
update_pos_by_velocity(&app->ship.x, &app->ship.y, app->ship.vx, app->ship.vy);
|
||||
update_bullets_position(app);
|
||||
update_asteroids_position(app);
|
||||
detect_collisions(app);
|
||||
@@ -573,9 +557,7 @@ void game_tick(void *ctx) {
|
||||
/* From time to time, create a new asteroid. The more asteroids
|
||||
* already on the screen, the smaller probability of creating
|
||||
* a new one. */
|
||||
if (app->asteroids_num == 0 ||
|
||||
(random() % 5000) < (30/(1+app->asteroids_num)))
|
||||
{
|
||||
if(app->asteroids_num == 0 || (random() % 5000) < (30 / (1 + app->asteroids_num))) {
|
||||
add_asteroid(app);
|
||||
}
|
||||
|
||||
@@ -587,16 +569,15 @@ void game_tick(void *ctx) {
|
||||
|
||||
/* Here all we do is putting the events into the queue that will be handled
|
||||
* in the while() loop of the app entry point function. */
|
||||
void input_callback(InputEvent* input_event, void* ctx)
|
||||
{
|
||||
AsteroidsApp *app = ctx;
|
||||
furi_message_queue_put(app->event_queue,input_event,FuriWaitForever);
|
||||
void input_callback(InputEvent* input_event, void* ctx) {
|
||||
AsteroidsApp* app = ctx;
|
||||
furi_message_queue_put(app->event_queue, input_event, FuriWaitForever);
|
||||
}
|
||||
|
||||
/* Allocate the application state and initialize a number of stuff.
|
||||
* This is called in the entry point to create the application state. */
|
||||
AsteroidsApp* asteroids_app_alloc() {
|
||||
AsteroidsApp *app = malloc(sizeof(AsteroidsApp));
|
||||
AsteroidsApp* app = malloc(sizeof(AsteroidsApp));
|
||||
|
||||
app->gui = furi_record_open(RECORD_GUI);
|
||||
app->view_port = view_port_alloc();
|
||||
@@ -605,16 +586,16 @@ AsteroidsApp* asteroids_app_alloc() {
|
||||
gui_add_view_port(app->gui, app->view_port, GuiLayerFullscreen);
|
||||
app->event_queue = furi_message_queue_alloc(8, sizeof(InputEvent));
|
||||
|
||||
app->running = 1; /* Turns 0 when back is pressed. */
|
||||
app->running = 1; /* Turns 0 when back is pressed. */
|
||||
restart_game_after_gameover(app);
|
||||
memset(app->pressed,0,sizeof(app->pressed));
|
||||
memset(app->pressed, 0, sizeof(app->pressed));
|
||||
return app;
|
||||
}
|
||||
|
||||
/* Free what the application allocated. It is not clear to me if the
|
||||
* Flipper OS, once the application exits, will be able to reclaim space
|
||||
* even if we forget to free something here. */
|
||||
void asteroids_app_free(AsteroidsApp *app) {
|
||||
void asteroids_app_free(AsteroidsApp* app) {
|
||||
furi_assert(app);
|
||||
|
||||
// View related.
|
||||
@@ -630,28 +611,27 @@ void asteroids_app_free(AsteroidsApp *app) {
|
||||
|
||||
/* Return the time in milliseconds the specified key is continuously
|
||||
* pressed. Or 0 if it is not pressed. */
|
||||
uint32_t key_pressed_time(AsteroidsApp *app, InputKey key) {
|
||||
return app->pressed[key] == 0 ? 0 :
|
||||
furi_get_tick() - app->pressed[key];
|
||||
uint32_t key_pressed_time(AsteroidsApp* app, InputKey key) {
|
||||
return app->pressed[key] == 0 ? 0 : furi_get_tick() - app->pressed[key];
|
||||
}
|
||||
|
||||
/* Handle keys interaction. */
|
||||
void asteroids_update_keypress_state(AsteroidsApp *app, InputEvent input) {
|
||||
if (input.type == InputTypePress) {
|
||||
void asteroids_update_keypress_state(AsteroidsApp* app, InputEvent input) {
|
||||
if(input.type == InputTypePress) {
|
||||
app->pressed[input.key] = furi_get_tick();
|
||||
} else if (input.type == InputTypeRelease) {
|
||||
uint32_t dur = key_pressed_time(app,input.key);
|
||||
} else if(input.type == InputTypeRelease) {
|
||||
uint32_t dur = key_pressed_time(app, input.key);
|
||||
app->pressed[input.key] = 0;
|
||||
if (dur < 200 && input.key == InputKeyOk) app->fire = true;
|
||||
if(dur < 200 && input.key == InputKeyOk) app->fire = true;
|
||||
}
|
||||
}
|
||||
|
||||
int32_t asteroids_app_entry(void* p) {
|
||||
UNUSED(p);
|
||||
AsteroidsApp *app = asteroids_app_alloc();
|
||||
AsteroidsApp* app = asteroids_app_alloc();
|
||||
|
||||
/* Create a timer. We do data analysis in the callback. */
|
||||
FuriTimer *timer = furi_timer_alloc(game_tick, FuriTimerTypePeriodic, app);
|
||||
FuriTimer* timer = furi_timer_alloc(game_tick, FuriTimerTypePeriodic, app);
|
||||
furi_timer_start(timer, furi_kernel_get_tick_frequency() / 10);
|
||||
|
||||
/* This is the main event loop: here we get the events that are pushed
|
||||
@@ -660,25 +640,24 @@ int32_t asteroids_app_entry(void* p) {
|
||||
InputEvent input;
|
||||
while(app->running) {
|
||||
FuriStatus qstat = furi_message_queue_get(app->event_queue, &input, 100);
|
||||
if (qstat == FuriStatusOk) {
|
||||
if (DEBUG_MSG) FURI_LOG_E(TAG, "Main Loop - Input: type %d key %u",
|
||||
input.type, input.key);
|
||||
if(qstat == FuriStatusOk) {
|
||||
if(DEBUG_MSG)
|
||||
FURI_LOG_E(TAG, "Main Loop - Input: type %d key %u", input.type, input.key);
|
||||
|
||||
/* Handle navigation here. Then handle view-specific inputs
|
||||
* in the view specific handling function. */
|
||||
if (input.type == InputTypeShort &&
|
||||
input.key == InputKeyBack)
|
||||
{
|
||||
if(input.type == InputTypeShort && input.key == InputKeyBack) {
|
||||
app->running = 0;
|
||||
} else {
|
||||
asteroids_update_keypress_state(app,input);
|
||||
asteroids_update_keypress_state(app, input);
|
||||
}
|
||||
} else {
|
||||
/* Useful to understand if the app is still alive when it
|
||||
* does not respond because of bugs. */
|
||||
if (DEBUG_MSG) {
|
||||
static int c = 0; c++;
|
||||
if (!(c % 20)) FURI_LOG_E(TAG, "Loop timeout");
|
||||
if(DEBUG_MSG) {
|
||||
static int c = 0;
|
||||
c++;
|
||||
if(!(c % 20)) FURI_LOG_E(TAG, "Loop timeout");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user