ohsp

commit 3fed33a8a0f682c28fcba1c3788c03aefed6b933
parent 898cb12bb25b79536937b2db49d3469d3ba3203e
Author: amin <dev@aminmesbah.com>
Date:   Tue, 24 Oct 2017 05:03:58 +0000

Don't malloc when adding vectors

FossilOrigin-Name: 24824794187244532963720dcc19190f028441b79a755f31560a307f93c1dd48
Diffstat:
M
src/entity.c
 | 
12
++++++++----
M
src/entity.h
 | 
4
++++

2 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/src/entity.c b/src/entity.c
@@ -1,5 +1,8 @@
 #include "entity.h"
 
+#include <math.h>
+#include <stdio.h>
+
 
 struct Vec2d vec2d_add(float angle1, float length1, float angle2, float length2)
 {
@@ -7,8 +10,8 @@ struct Vec2d vec2d_add(float angle1, float length1, float angle2, float length2)
     float y = cosf(angle1) * length1 + cosf(angle2) * length2;
 
     struct Vec2d new_vec;
-    new_vec->angle = 0.5 * M_PI - atan2f(y, x);
-    new_vec->length = hypotf(x, y);
+    new_vec.angle = 0.5 * M_PI - atan2f(y, x);
+    new_vec.length = hypotf(x, y);
     return new_vec;
 }
 
@@ -16,6 +19,7 @@ struct Vec2d vec2d_add(float angle1, float length1, float angle2, float length2)
 void entity_accelerate(struct Entity *e, float angle, float acceleration)
 {
     struct Vec2d new_vec = vec2d_add(e->angle, e->speed, angle, acceleration);
-    e->angle = new_vec->angle;
-    e->speed = new_vec->length;
+    //printf("(%f, %f)\n", new_vec.angle, new_vec.length);
+    e->angle = new_vec.angle;
+    e->speed = new_vec.length;
 }
diff --git a/src/entity.h b/src/entity.h
@@ -3,6 +3,10 @@
 
 #include <stdint.h>
 
+#ifndef M_PI
+#define M_PI (3.14159265358979323846264338327950288)
+#endif
+
 struct Entity
 {
     float angle;