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Move the ship about

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This commit is contained in:
Bill Rossi 2025-03-01 08:12:40 -05:00
parent 238ab68322
commit cec3337c7a
3 changed files with 41 additions and 1 deletions
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1
game.c
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@ -24,6 +24,7 @@ void handle_input(Game *g) {
void run_frame(Game *g) {
handle_input(g);
move_player(g->player);
}
void draw_frame(Game *g) {

28
player.c
View File

@ -7,13 +7,15 @@
// Starship Futuretime is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along with Starship Futuretime. If not, see <https://www.gnu.org/licenses/>.
#include <stdio.h>
#include <raylib.h>
#include "player.h"
void initialize_player(Player *p) {
p->position = (Vector2) { 400, 300 };
p->velocity = (Vector2) { 0, 0 };
p->acceleration = (Vector2) { 0, 0 };
p->pitch = PITCH_NEUTRAL;
p->roll = ROLL_NEUTRAL;
}
@ -41,3 +43,27 @@ void draw_player(Player *p) {
DrawTriangle(nose, left_wing, right_wing, DARKGRAY);
}
void move_player(Player *p) {
switch (p->roll) {
case ROLL_LEFT: p->acceleration.x = -ACCEL_X; break;
case ROLL_NEUTRAL: p->acceleration.x = 0; break;
case ROLL_RIGHT: p->acceleration.x = ACCEL_X; break;
}
switch (p->pitch) {
case PITCH_DESCENDING: p->acceleration.y = 4; break;
case PITCH_NEUTRAL: p->acceleration.y = 0; break;
case PITCH_ASCENDING: p->acceleration.y = -4; break;
}
p->velocity.x += p->acceleration.x;
p->velocity.x = CLAMP(p->velocity.x, MAX_VEL_X);
p->velocity.x *= DAMPING_X;
p->velocity.y += p->acceleration.y;
p->velocity.y = CLAMP(p->velocity.y, MAX_VEL_Y);
p->position.x += p->velocity.x;
p->position.y += p->velocity.y;
}

13
player.h
View File

@ -10,6 +10,15 @@
#ifndef PLAYER_H
#define PLAYER_H
#define ACCEL_X 0.7
#define MAX_VEL_X 5
#define DAMPING_X 0.85
#define MAX_VEL_Y 2
#define MAX(a, b) ((a > b) ? a : b)
#define MIN(a, b) ((a < b) ? a : b)
#define CLAMP(a, b) (MIN(MAX(a, -b), b))
typedef enum PlayerPitch {
PITCH_DESCENDING,
PITCH_NEUTRAL,
@ -24,11 +33,15 @@ typedef enum PlayerRoll {
typedef struct Player {
Vector2 position;
Vector2 velocity;
Vector2 acceleration;
PlayerPitch pitch;
PlayerRoll roll;
} Player;
void initialize_player(Player *p);
void handle_player_input(Player *p);
void draw_player(Player *p);
void move_player(Player *p);
#endif