164 lines
4.8 KiB
Lua
164 lines
4.8 KiB
Lua
Seeker = Object:extend()
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Seeker:implement(GameObject)
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Seeker:implement(Physics)
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Seeker:implement(Unit)
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function Seeker:init(args)
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self:init_game_object(args)
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self:init_unit()
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self:set_as_rectangle(14, 6, 'dynamic', 'enemy')
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self:set_restitution(0.5)
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self.color = red[0]
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self.classes = {'seeker'}
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self:calculate_stats(true)
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self:set_as_steerable(self.v, 2000, 4*math.pi, 4)
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end
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function Seeker:update(dt)
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self:update_game_object(dt)
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if main.current.mage_level == 2 then self.buff_def_a = -30
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elseif main.current.mage_level == 1 then self.buff_def_a = -15
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else self.buff_def_a = 0 end
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self:calculate_stats()
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if self.being_pushed then
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local v = math.length(self:get_velocity())
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if v < 25 then
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self.being_pushed = false
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self.steering_enabled = true
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self:set_damping(0)
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self:set_angular_damping(0)
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end
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else
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local player = main.current.player
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self:seek_point(player.x, player.y)
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self:wander(50, 100, 20)
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self:steering_separate(16, main.current.enemies)
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self:rotate_towards_velocity(0.5)
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end
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self.r = self:get_angle()
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end
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function Seeker:draw()
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graphics.push(self.x, self.y, self.r, self.hfx.hit.x, self.hfx.hit.x)
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graphics.rectangle(self.x, self.y, self.shape.w, self.shape.h, 3, 3, self.hfx.hit.f and fg[0] or self.color)
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graphics.pop()
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end
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function Seeker:on_collision_enter(other, contact)
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local x, y = contact:getPositions()
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if other:is(Wall) then
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self.hfx:use('hit', 0.15, 200, 10, 0.1)
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self:bounce(contact:getNormal())
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elseif table.any(main.current.enemies, function(v) return other:is(v) end) then
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if self.being_pushed and math.length(self:get_velocity()) > 60 then
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other:hit(math.floor(self.push_force/4))
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self:hit(math.floor(self.push_force/2))
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other:push(math.floor(self.push_force/2), other:angle_to_object(self))
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HitCircle{group = main.current.effects, x = x, y = y, rs = 6, color = fg[0], duration = 0.1}
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for i = 1, 2 do HitParticle{group = main.current.effects, x = x, y = y, color = self.color} end
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hit2:play{pitch = random:float(0.95, 1.05), volume = 0.35}
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end
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elseif other:is(Turret) then
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_G[random:table{'player_hit1', 'player_hit2'}]:play{pitch = random:float(0.95, 1.05), volume = 0.35}
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self:hit(0)
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self:push(random:float(2.5, 7), other:angle_to_object(self))
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end
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end
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function Seeker:hit(damage)
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if self.dead then return end
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self.hfx:use('hit', 0.25, 200, 10)
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self:show_hp()
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local actual_damage = self:calculate_damage(damage)
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self.hp = self.hp - actual_damage
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main.current.damage_dealt = main.current.damage_dealt + actual_damage
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if self.hp <= 0 then
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self.dead = true
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for i = 1, random:int(4, 6) do HitParticle{group = main.current.effects, x = self.x, y = self.y, color = self.color} end
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HitCircle{group = main.current.effects, x = self.x, y = self.y, rs = 12}:scale_down(0.3):change_color(0.5, self.color)
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main.current:enemy_killed()
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_G[random:table{'enemy_die1', 'enemy_die2'}]:play{pitch = random:float(0.9, 1.1), volume = 0.5}
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end
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end
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function Seeker:push(f, r)
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self.push_force = f
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self.being_pushed = true
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self.steering_enabled = false
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self:apply_impulse(f*math.cos(r), f*math.sin(r))
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self:apply_angular_impulse(random:table{random:float(-12*math.pi, -4*math.pi), random:float(4*math.pi, 12*math.pi)})
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self:set_damping(1.5)
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self:set_angular_damping(1.5)
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end
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EnemyProjectile = Object:extend()
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EnemyProjectile:implement(GameObject)
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EnemyProjectile:implement(Physics)
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function EnemyProjectile:init(args)
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self:init_game_object(args)
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self:set_as_rectangle(10, 4, 'dynamic', 'enemy_projectile')
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end
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function EnemyProjectile:update(dt)
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self:update_game_object(dt)
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self:set_angle(self.r)
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self:move_along_angle(self.v, self.r)
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end
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function EnemyProjectile:draw()
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graphics.push(self.x, self.y, self.r)
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graphics.rectangle(self.x, self.y, self.shape.w, self.shape.h, 2, 2, self.color)
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graphics.pop()
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end
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function EnemyProjectile:die(x, y, r, n)
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if self.dead then return end
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x = x or self.x
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y = y or self.y
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n = n or random:int(3, 4)
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for i = 1, n do HitParticle{group = main.current.effects, x = x, y = y, r = random:float(0, 2*math.pi), color = self.color} end
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HitCircle{group = main.current.effects, x = x, y = y}:scale_down()
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self.dead = true
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end
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function EnemyProjectile:on_collision_enter(other, contact)
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local x, y = contact:getPositions()
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local nx, ny = contact:getNormal()
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local r = 0
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if nx == 0 and ny == -1 then r = -math.pi/2
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elseif nx == 0 and ny == 1 then r = math.pi/2
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elseif nx == -1 and ny == 0 then r = math.pi
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else r = 0 end
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if other:is(Wall) then
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self:die(x, y, r, random:int(2, 3))
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end
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end
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function EnemyProjectile:on_trigger_enter(other, contact)
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if other:is(Player) then
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self:die(self.x, self.y, nil, random:int(2, 3))
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other:hit(self.dmg)
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end
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end
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