unknown

source/scripts/bomber/enemy.lua

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+Enemy = {}
+class('Enemy').extends(NobleSprite)
+
+function Enemy:init(x,y)
+    Enemy.super.init(self)
+    self:moveTo(x, y)
+    self:setZIndex(4)
+    self:add(x,y)
+    self.markImage = Graphics.image.new("assets/sprites/enemy"..math.random(1,2)) -- TODO: make it random
+    self.deadImage = Graphics.image.new("assets/sprites/enemy1_3")
+    self.hitSound = playdate.sound.fileplayer.new("assets/audio/hit1")
+    self:setImage(self.markImage)
+    self.removed = false
+    self:setGroups(CollideGroups.enemy)
+    self:setCollidesWithGroups({
+        CollideGroups.granade,
+        CollideGroups.enemy
+    })
+    self:setCollideRect(-6, -6, 46, 46)
+    self:setSize(32, 32)
+    
+    self.vx = 0
+    self.vy = 0
+    self.isDying = false
+    self.friction = 0.95
+end
+
+function Enemy:update()
+    if not BomberScene.instance then return end
+    local speed = 0
+    
+    if self.isDying then
+        self.vx = self.vx * self.friction
+        self.vy = self.vy * self.friction
+        
+        self:moveBy(self.vx, self.vy + BomberScene.instance.scrollSpeed)
+        
+        if math.abs(self.vx) < 0.1 and math.abs(self.vy) < 0.1 then
+            self.isDying = false
+            self.removed = true
+        end
+    elseif not self.removed then
+        speed = math.random(0, 7)/10
+        self:moveBy(0, BomberScene.instance.scrollSpeed + speed)
+    else 
+        self:moveBy(0, BomberScene.instance.scrollSpeed)
+    end
+
+    local actualX, actualY, collisions, numberOfCollisions = self:checkCollisions(self.x, self.y)
+
+    if numberOfCollisions > 0 then
+        for i, collision in ipairs(collisions) do
+            if collision.other:getTag() == 154 and collision.other.currentRadius <= 0.05 and not self.isDying then
+                print("Collision with granade")
+                self:setImage(self.deadImage)
+                self.hitSound:play()
+                self:applyExplosionForce(collision.other.x, collision.other.y)
+            end
+        end
+    end
+
+    if self.y > 240 + 10 then
+        if not self.removed then
+            print("Removing enemy")
+            self:remove()
+            self:superRemove()
+            self.removed = true
+        end
+    end
+end
+
+function Enemy:applyExplosionForce(explosionX, explosionY)
+    local dx = self.x - explosionX
+    local dy = self.y - explosionY
+    
+    local dist = math.sqrt(dx*dx + dy*dy)
+    if dist == 0 then dist = 0.001 end
+    
+    dx = dx / dist
+    dy = dy / dist
+    
+    local maxForce = 5
+    local maxRadius = 100
+    
+    local force = maxForce * (1 - math.min(dist, maxRadius) / maxRadius)
+    force = math.max(force, 1)
+    
+    self.vx = dx * force
+    self.vy = dy * force * 0.5
+    
+    self.isDying = true
+    
+    self:setRotation(math.random() * 360)
+end