Add randomness to AI aim

constants.h

@@ -138,6 +138,11 @@
 */
 #define SFG_DAMAGE_RANDOMNESS 64 
 
+/**
+  Height of monster collision BBox in RCL_Units.
+*/
+#define SFG_MONSTER_COLLISION_HEIGHT 1024
+
 /**
   Specifies key repeat delay, in ms.
 */
@@ -518,7 +523,7 @@ SFG_PROGRAM_MEMORY uint8_t SFG_attackDamageTable[SFG_WEAPON_FIRE_TYPES_TOTAL] =
 SFG_PROGRAM_MEMORY uint8_t SFG_projectileAttributeTable[SFG_PROJECTILES_TOTAL] =
 {
   /* explosion */ SFG_PROJECTILE_ATTRIBUTE(0,400),
-  /* fireball  */ SFG_PROJECTILE_ATTRIBUTE(18,1000),
+  /* fireball  */ SFG_PROJECTILE_ATTRIBUTE(11,1000),
   /* plasma    */ SFG_PROJECTILE_ATTRIBUTE(20,500),
   /* dust      */ SFG_PROJECTILE_ATTRIBUTE(0,450),
   /* bullet    */ SFG_PROJECTILE_ATTRIBUTE(28,1000)

main.c

@@ -1921,8 +1921,13 @@ void SFG_monsterPerformAI(SFG_MonsterRecord *monster)
         pos.x = SFG_MONSTER_COORD_TO_RCL_UNITS(monster->coords[0]);
         pos.y = SFG_MONSTER_COORD_TO_RCL_UNITS(monster->coords[1]);
 
-        dir.x = SFG_player.camera.position.x - pos.x;
+        dir.x = SFG_player.camera.position.x - pos.x
-        dir.y = SFG_player.camera.position.y - pos.y;
+          - 128 * SFG_MONSTER_AIM_RANDOMNESS + 
+          SFG_random() * SFG_MONSTER_AIM_RANDOMNESS;
+
+        dir.y = SFG_player.camera.position.y - pos.y
+          - 128 * SFG_MONSTER_AIM_RANDOMNESS + 
+          SFG_random() * SFG_MONSTER_AIM_RANDOMNESS;
 
         dir = RCL_normalize(dir);
 

settings.h

@@ -199,17 +199,23 @@
 */
 #define SFG_MONSTER_SOUND_PROBABILITY 64
 
+/**
+  Affects how precise monsters are in aiming, specify random range in
+  fourths of a game square. Should be power of 2 for performance.
+*/
+#define SFG_MONSTER_AIM_RANDOMNESS 4
+
 //------ developer/debug settings ------
 
 /**
   Developer cheat for having infinite ammo in all weapons.
 */
-#define SFG_INFINITE_AMMO 0
+#define SFG_INFINITE_AMMO 1
 
 /**
   Developer cheat for immortality.
 */
-#define SFG_IMMORTAL 0
+#define SFG_IMMORTAL 1
 
 /**
   Turn on for previes mode for map editing (flying, noclip, fast movement etc.).