local U = require "scriptbank\\utillib"
local P = require "scriptbank\\physlib"
local target = {}
local target_dist = 100
local textypos = 70
local place = 1
local hit = {}

function raycast_init(e)
	--lazy way to assign the entity numbers
	--my placement in editor = front / left / right / back
	target[1] = 3
	target[2] = 4
	target[3] = 5
	target[4] = 6
	for a = 1, 4 do 
		hit[a] = 0
	end 
end 

function raycast_main(e)
	--get the player position
	local x1,y1,z1 = g_PlayerPosX,g_PlayerPosY,g_PlayerPosZ	
	--do this in 1 frame so we know the target object is in the correct place when we ray cast to it later
	if place == 1 then 
		--get the player rotation
		local xa1,ya1,za1 = g_PlayerAngX,g_PlayerAngY,g_PlayerAngZ
		local x2,y2,z2 = 0,0,0	
		--get and update the target object position based on the player position & angle
		for a = 1, 4 do
			CollisionOff(target[a])
			if a == 1 then 
				--infront
				x2,y2,z2 = U.Rotate3D( 0, 0, target_dist, 0, math.rad(ya1), 0 ) 
			elseif a == 2 then 
				--left
				x2,y2,z2 = U.Rotate3D( -target_dist, 0, 0, 0, math.rad(ya1), 0 ) 
			elseif a == 3 then 
				--right
				x2,y2,z2 = U.Rotate3D( target_dist, 0, 0, 0, math.rad(ya1), 0 ) 
			elseif a == 4 then 
				--behind
				x2,y2,z2 = U.Rotate3D( 0, 0, -target_dist, 0, math.rad(ya1), 0 ) 
			end 
			local x3,y3,z3 = x1+x2,y1+y2,z1+z2
			SetPosition(target[a],x3,y3,z3)
			SetRotation(target[a],0,0,0)
		end 
		place = 0
	--do this in the other frame so we have already positioned the target object
	else 
		--just helps for third person debugging
		--TextCenterOnX(50,65,3,ignore)
		for a = 1, 4 do 
			local ignore = g_Entity[11]['obj'] --g_Entity[target[a]]['obj'] --ignore target object or thirdperson
			--get the target position (we updated before)
			local x3,y3,z3 = GetEntityPosAng(target[a])
			--check for obstalces
			hit[a] = IntersectAll(x1,y1,z1,x3,y3,z3,ignore)
			if hit[a] == nil then 
				hit[a] = 0
			--convert from object number to entity number if it was dynamic
			else 
				hit[a] = P.ObjectToEntity(hit[a])
				if hit[a] == nil then 
					hit[a] = 0
				end 
			end 
			--if no obstalces found we check for static obstalces next
			if hit[a] == 0 then 
				hit[a] = IntersectStatic(x1,y1,z1,x3,y3,z3,ignore)
				if hit[a] == nil then 
					hit[a] = 0
				end 
			end 
		end 
		place = 1 
	end 
	--show the results on screen
	textypos = 70
	for a = 1, 4 do 
		local text = ""
		if a == 1 then 
			text = "front = "..hit[a]
		elseif a == 2 then 
			text = "left = "..hit[a]
		elseif a == 3 then 
			text = "right = "..hit[a]
		elseif a == 4 then 
			text = "back = "..hit[a]
		end 
		local text2 = ""
		--this is just a quick way to differentiate between static and dynamic as we converted the dynamic numbers earlier 
		if hit[a] > 70000 then 
			text2 = " (static)"
		elseif hit[a] > 0 then 
			text2 = " (dynamic)"
		else 
			text2 = " (nothing)"
		end 
		TextCenterOnX(50,textypos,3,text..text2)
		textypos = textypos + 5
	end 

end 

g_projectileevent_explosion = 0
g_projectileevent_name = ""
g_projectileevent_x = 0
g_projectileevent_y = 0
g_projectileevent_z = 0
g_projectileevent_radius = 0
g_projectileevent_damage = 0
g_projectileevent_entityhit = 0