Switch position, scale and velocity to i16

common.h

@@ -7,6 +7,8 @@
 #define MAX_WANDERER_DIM 8
 #define MIN_WANDERER_DIM 3
 #define MIN_ZONE_DIM 30
+#define MIN_ABS_VELOCITY 200
+#define MAX_ABS_VELOCITY 600
 #define BG_COLOR (Color){.r = 0xea, .g = 0xf2, .b = 0xe3, .a = 0xff}
 #define FG_COLOR (Color){.r = 0x42, .g = 0x4C, .b = 0x55, .a = 0xff}
 #define ZONE_COLOR (Color){.r = 0xb4, .g = 0x65, .b = 0x4a, .a = 0xff}
@@ -15,6 +17,7 @@
 #define WANDERER_SLOWDOWN_FACTOR 0.5f
 #define WANDERER_SPEEDUP_FACTOR 2.0f
 #define MSG_BUF_LEN 4096
+
 #define abs(A) (A < 0 ? A * -1 : A)
 #define min(A, B) (A < B ? A : B)
 #define max(A, B) (A > B ? A : B)