# Jedi Knight cog script to counter the ugly z-fighting for things close to walls
# Created by zagibu@gmx.ch

flags=0x240

symbols

thing		player			local
thing		decor0=-1
thing		decor1=-1
thing		decor2=-1
thing		decor3=-1
thing		decor4=-1
thing		decor5=-1
thing		decor6=-1
thing		decor7=-1
thing		decor8=-1
thing		decor9=-1

vector		player_relative		local

float		min_angle=0.1		desc=Minimum dot product result between player and object that triggers offset of object
float		distance=0.05		desc=Offset from wall (in JKU's) that prevents Z-fighting
float		cur_dist0=0		local
float		cur_dist1=0		local
float		cur_dist2=0		local
float		cur_dist3=0		local
float		cur_dist4=0		local
float		cur_dist5=0		local
float		cur_dist6=0		local
float		cur_dist7=0		local
float		cur_dist8=0		local
float		cur_dist9=0		local
float		curr_angle		local

int		i			local

message		startup
message		pulse

end

code

startup:
	Sleep(1);
	player = GetLocalPlayerThing();
	SetPulse(0.5);
	Return;

pulse:
	// Check all decor objects
	for(i = 0; i < 10; i = i + 1)
	{
		object = decor0;
		// Handle only valid objects
		if(object != -1)
		{
			object_pos = GetThingPos(object);
			object_look = GetThingLVec(object);
			player_relative = VectorNorm(VectorSub(GetThingPos(player), object_pos));
			curr_angle = VectorDot(object_look, player_relative);
			// Check player's angle to current object (dot product)
			if(curr_angle > min_angle * 2)
			{
				// Player is in front of object
				if(cur_dist0 == 0)
				{
					SetThingPos(object, VectorAdd(object_pos, VectorScale(object_look, distance)));
					cur_dist0 = 1;
				}
			}
			else if(curr_angle < min_angle)
			{
				// Player is at side of object
				if(cur_dist0 == 1)
				{
					SetThingPos(object, VectorSub(object_pos, VectorScale(object_look, distance)));
					cur_dist0 = 0;
				}
			}
		}
	}
	Return;

end