108 lines
3 KiB
Lua
108 lines
3 KiB
Lua
require "/scripts/vec2.lua"
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function init()
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-- scale damage and calculate energy cost
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self.pType = config.getParameter("projectileType")
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self.pParams = config.getParameter("projectileParameters", {})
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if not self.pParams.power then
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local projectileConfig = root.projectileConfig(self.pType)
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self.pParams.power = projectileConfig.power
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end
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self.pParams.power = self.pParams.power * root.evalFunction("weaponDamageLevelMultiplier", config.getParameter("level", 1))
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self.energyPerShot = 3 * self.pParams.power
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self.fireOffset = config.getParameter("fireOffset")
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updateAim()
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storage.fireTimer = storage.fireTimer or 0
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self.recoilTimer = 0
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animator.setAnimationRate(1 / config.getParameter("fireTime", 1.0))
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self.activeRockets = {}
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updateCursor()
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end
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function update(dt, fireMode, shiftHeld)
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updateAim()
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storage.fireTimer = math.max(storage.fireTimer - dt, 0)
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self.recoilTimer = math.max(self.recoilTimer - dt, 0)
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if fireMode ~= "none"
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and storage.fireTimer <= 0
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and not world.pointTileCollision(firePosition())
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and status.overConsumeResource("energy", self.energyPerShot) then
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storage.fireTimer = config.getParameter("fireTime", 1.0)
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fire()
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end
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activeItem.setRecoil(self.recoilTimer > 0)
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updateRockets()
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updateCursor()
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end
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function updateCursor()
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if #self.activeRockets > 0 then
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activeItem.setCursor("/cursors/chargeready.cursor")
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else
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activeItem.setCursor("/cursors/reticle0.cursor")
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end
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end
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function uninit()
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for i, rocket in ipairs(self.activeRockets) do
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world.callScriptedEntity(rocket, "setTarget", nil)
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end
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end
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function fire()
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self.pParams.powerMultiplier = activeItem.ownerPowerMultiplier()
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local rocketId = world.spawnProjectile(
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self.pType,
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firePosition(),
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activeItem.ownerEntityId(),
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aimVector(),
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false,
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self.pParams
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)
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if rocketId then
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self.activeRockets[#self.activeRockets + 1] = rocketId
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end
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animator.setAnimationState("reload", "reload", true)
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animator.burstParticleEmitter("fireParticles")
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animator.playSound("fire")
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self.recoilTimer = config.getParameter("recoilTime", 0.12)
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end
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function updateAim()
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self.aimAngle, self.aimDirection = activeItem.aimAngleAndDirection(self.fireOffset[2], activeItem.ownerAimPosition())
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activeItem.setArmAngle(self.aimAngle)
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activeItem.setFacingDirection(self.aimDirection)
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end
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function updateRockets()
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local newRockets = {}
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for i, rocket in ipairs(self.activeRockets) do
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if world.entityExists(rocket) then
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newRockets[#newRockets + 1] = rocket
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end
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end
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self.activeRockets = newRockets
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for i, rocket in ipairs(self.activeRockets) do
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world.callScriptedEntity(rocket, "setTarget", activeItem.ownerAimPosition())
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end
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end
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function firePosition()
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return vec2.add(mcontroller.position(), activeItem.handPosition(self.fireOffset))
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end
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function aimVector()
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local aimVector = vec2.rotate({1, 0}, self.aimAngle + sb.nrand(config.getParameter("inaccuracy", 0), 0))
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aimVector[1] = aimVector[1] * self.aimDirection
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return aimVector
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end
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