mirror of
https://github.com/curioustorvald/Terrarum.git
synced 2026-03-07 12:21:52 +09:00
9b9b65efba
Former-commit-id: 4cddfb080cc689738d9bf308f7d08852f4c78a8b Former-commit-id: 2354b2483f30e70862a327c1b9688a19bd1b2f66
111 lines
3.3 KiB
Kotlin
111 lines
3.3 KiB
Kotlin
package net.torvald.terrarum.gameactors
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import net.torvald.colourutil.CIELabUtil.darkerLab
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import net.torvald.point.Point2d
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import net.torvald.spriteanimation.SpriteAnimation
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import net.torvald.terrarum.Terrarum
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import org.dyn4j.geometry.Vector2
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import org.newdawn.slick.Color
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import org.newdawn.slick.GameContainer
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import org.newdawn.slick.Graphics
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import java.util.*
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/**
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* Simplest projectile.
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*
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* Created by minjaesong on 16-08-29.
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*/
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open class ProjectileSimple(
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private val type: Int,
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fromPoint: Vector2, // projected coord
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toPoint: Vector2 // arriving coord
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) : ActorWithBody(), Luminous, Projectile {
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val damage: Int
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val displayColour: Color
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/** scalar part of velocity */
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val speed: Int
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override var luminosity: Int
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get() = bulletDatabase[type][OFFSET_LUMINOSITY] as Int
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set(value) {
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}
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/**
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* Arguments:
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*
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* Hitbox(x-offset, y-offset, width, height)
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* (Use ArrayList for normal circumstances)
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*/
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override val lightBoxList = ArrayList<Hitbox>()
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val lifetimeMax = 2500
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var lifetimeCounter = 0
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val posPre: Point2d
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init {
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setPosition(fromPoint.x, fromPoint.y)
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posPre = Point2d(fromPoint.x, fromPoint.y)
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// lightbox sized 8x8 centered to the bullet
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lightBoxList.add(Hitbox(-4.0, -4.0, 8.0, 8.0))
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this.velocity.set(velocity)
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damage = bulletDatabase[type][OFFSET_DAMAGE] as Int
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displayColour = bulletDatabase[type][OFFSET_COL] as Color
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isNoSubjectToGrav = bulletDatabase[type][OFFSET_NOGRAVITY] as Boolean
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speed = bulletDatabase[type][OFFSET_SPEED] as Int
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setHitboxDimension(2, 2, 0, 0) // should be following sprite's properties if there IS one
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velocity.set((fromPoint to toPoint).setMagnitude(speed.toDouble()))
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collisionType = KINEMATIC
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}
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override fun update(gc: GameContainer, delta: Int) {
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// hit something and despawn
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lifetimeCounter += delta
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if ((ccdCollided || grounded) || lifetimeCounter >= lifetimeMax) flagDespawn()
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posPre.set(centrePosPoint)
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super.update(gc, delta)
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}
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override fun drawBody(gc: GameContainer, g: Graphics) {
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val colourTail = displayColour.darker(0f) // clone a colour
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colourTail.a = 0.16f
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// draw trail of solid colour (Terraria style maybe?)
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g.lineWidth = 2f * Terrarum.ingame.screenZoom
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g.drawGradientLine(
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hitbox.centeredX.toFloat() * Terrarum.ingame.screenZoom,
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hitbox.centeredY.toFloat() * Terrarum.ingame.screenZoom,
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displayColour,
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posPre.x.toFloat() * Terrarum.ingame.screenZoom,
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posPre.y.toFloat() * Terrarum.ingame.screenZoom,
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colourTail
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)
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}
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override fun drawGlow(gc: GameContainer, g: Graphics) = drawBody(gc, g)
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companion object {
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val OFFSET_DAMAGE = 0
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val OFFSET_COL = 1 // Color or SpriteAnimation
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val OFFSET_NOGRAVITY = 2
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val OFFSET_SPEED = 3
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val OFFSET_LUMINOSITY = 4
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val bulletDatabase = arrayOf(
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// damage, display colour, no gravity, speed
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arrayOf(7, Color(0xFF5429), true, 40, 32),
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arrayOf(8, Color(0xFF5429), true, 20, 0)
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// ...
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)
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}
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} |