nortega/spaceshipsim
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added malfunctioning ship.

Browse Source 
Currently it doesn't seem to be detecting the key preses.
This commit is contained in:
Nicolás A. Ortega Froysa
2018-03-25 17:47:31 +02:00
parent 80113d51ff
commit 88f3a5f1a5
8 changed files with 54 additions and 118 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
src/ship.c
View File

@@ -20,10 +20,9 @@
#include "event_manager.h"
#include "globals.h"
#ifdef DEBUG
# include <stdio.h>
#endif
#include <math.h>
#include <assert.h>
#include <allegro5/allegro_primitives.h>
#ifndef M_PI
# define M_PI 3.14159265f
@@ -31,16 +30,10 @@
#define ACCEL 5.0f
#define TURN_ACCEL (M_PI / FPS) // turn at pi radians / sec
#define SHIP_RADIUS 10.0f // radius of the ship in pixels
void ship_init(struct ship *ship, int x, int y) {
if(!ship)
{
#ifdef DEBUG
fprintf(stderr,
"ship_init(struct ship*,int,int): invalid ship.\n");
#endif
return;
}
assert(ship);
ship->x = x;
ship->y = y;
ship->velX = ship->velY = 0;
@@ -48,15 +41,7 @@ void ship_init(struct ship *ship, int x, int y) {
}
void ship_update(struct ship *ship) {
if(!ship)
{
#ifdef DEBUG
fprintf(stderr,
"ship_update(struct ship*): invalid ship.\n");
#endif
return;
}
assert(ship);
if(key_is_down(KEY_UP))
{
ship->velX += cos(ship->direction) * ACCEL;
@@ -79,3 +64,21 @@ void ship_update(struct ship *ship) {
else if(ship->direction < 0)
ship->direction += M_PI * 2;
}
void ship_draw(struct ship *ship) {
assert(ship);
const float x0 = ship->x + (cos(ship->direction) *
SHIP_RADIUS);
const float y0 = ship->y + (sin(ship->direction) *
SHIP_RADIUS);
const float x1 = ship->x + (cos(ship->direction +
M_PI * 0.8f) * SHIP_RADIUS);
const float y1 = ship->y + (sin(ship->direction +
M_PI * 0.8f) * SHIP_RADIUS);
const float x2 = ship->x + (cos(ship->direction +
M_PI * 1.2f) * SHIP_RADIUS);
const float y2 = ship->y + (sin(ship->direction +
M_PI * 1.2f) * SHIP_RADIUS);
al_draw_filled_triangle(x0, y0, x1, y1, x2, y2,
al_map_rgb(0xFF, 0x0, 0x0));
}