mirror of
https://git.minetest.land/VoxeLibre/VoxeLibre.git
synced 2024-11-09 09:41:05 +01:00
110 lines
No EOL
3.1 KiB
Lua
110 lines
No EOL
3.1 KiB
Lua
local minetest_get_objects_inside_radius = minetest.get_objects_inside_radius
|
|
|
|
local math_random = math.random
|
|
local vector_multiply = vector.multiply
|
|
|
|
local integer_test = {-1,1}
|
|
|
|
mobs.collision = function(self)
|
|
|
|
local pos = self.object:get_pos()
|
|
|
|
|
|
if not self or not self.object or not self.object:get_luaentity() then
|
|
return
|
|
end
|
|
|
|
--do collision detection from the base of the mob
|
|
local collisionbox = self.object:get_properties().collisionbox
|
|
|
|
pos.y = pos.y + collisionbox[2]
|
|
|
|
local collision_boundary = collisionbox[4]
|
|
|
|
local radius = collision_boundary
|
|
|
|
if collisionbox[5] > collision_boundary then
|
|
radius = collisionbox[5]
|
|
end
|
|
|
|
local collision_count = 0
|
|
|
|
|
|
local check_for_attack = false
|
|
|
|
if self.hostile and self.attacking then
|
|
check_for_attack = true
|
|
end
|
|
|
|
for _,object in ipairs(minetest_get_objects_inside_radius(pos, radius*1.25)) do
|
|
if object and object ~= self.object and (object:is_player() or object:get_luaentity()._cmi_is_mob == true) then--and
|
|
--don't collide with rider, rider don't collide with thing
|
|
--(not object:get_attach() or (object:get_attach() and object:get_attach() ~= self.object)) and
|
|
--(not self.object:get_attach() or (self.object:get_attach() and self.object:get_attach() ~= object)) then
|
|
--stop infinite loop
|
|
collision_count = collision_count + 1
|
|
if collision_count > 100 then
|
|
break
|
|
end
|
|
|
|
local pos2 = object:get_pos()
|
|
|
|
local object_collisionbox = object:get_properties().collisionbox
|
|
|
|
pos2.y = pos2.y + object_collisionbox[2]
|
|
|
|
local object_collision_boundary = object_collisionbox[4]
|
|
|
|
|
|
--this is checking the difference of the object collided with's possision
|
|
--if positive top of other object is inside (y axis) of current object
|
|
local y_base_diff = (pos2.y + object_collisionbox[5]) - pos.y
|
|
|
|
local y_top_diff = (pos.y + collisionbox[5]) - pos2.y
|
|
|
|
|
|
local distance = vector.distance(vector.new(pos.x,0,pos.z),vector.new(pos2.x,0,pos2.z))
|
|
|
|
if distance <= collision_boundary + object_collision_boundary and y_base_diff >= 0 and y_top_diff >= 0 then
|
|
|
|
local dir = vector.direction(pos,pos2)
|
|
|
|
dir.y = 0
|
|
|
|
--eliminate mob being stuck in corners
|
|
if dir.x == 0 and dir.z == 0 then
|
|
--slightly adjust mob position to prevent equal length
|
|
--corner/wall sticking
|
|
dir.x = dir.x + ((math_random()/10)*integer_test[math.random(1,2)])
|
|
dir.z = dir.z + ((math_random()/10)*integer_test[math.random(1,2)])
|
|
end
|
|
|
|
local velocity = dir
|
|
|
|
--0.5 is the max force multiplier
|
|
local force = 0.5 - (0.5 * distance / (collision_boundary + object_collision_boundary))
|
|
|
|
local vel1 = vector.multiply(velocity, -1.5)
|
|
local vel2 = vector.multiply(velocity, 1.5)
|
|
|
|
vel1 = vector.multiply(vel1, force * 10)
|
|
vel2 = vector.multiply(vel2, force)
|
|
|
|
if object:is_player() then
|
|
vel2 = vector_multiply(vel2, 2.5)
|
|
|
|
--integrate mob punching into collision detection
|
|
if check_for_attack and self.punch_timer <= 0 then
|
|
if object == self.attacking then
|
|
mobs.punch_attack(self)
|
|
end
|
|
end
|
|
end
|
|
|
|
self.object:add_velocity(vel1)
|
|
object:add_velocity(vel2)
|
|
end
|
|
|
|
end
|
|
end
|
|
end |