Added weapon system. Animated laser.

gameelement/canvas.go

@@ -10,6 +10,7 @@ import (
 	"mover/elements"
 	"mover/fonts"
 	"mover/gamedata"
+	"mover/weapons"
 
 	"github.com/hajimehoshi/ebiten/v2"
 	"github.com/hajimehoshi/ebiten/v2/text"
@@ -43,6 +44,7 @@ type Canvas struct {
 	gameover      bool
 
 	lasercoords []gamedata.Coordinates
+	holster     *weapons.Holster
 }
 
 func NewCanvas(a gamedata.Area) *Canvas {
@@ -63,6 +65,7 @@ func NewCanvas(a gamedata.Area) *Canvas {
 		score:             0,
 		runtime:           0.,
 		counter:           0,
+		holster:           weapons.NewHolster(),
 	}
 	c.laserMask.Clear()
 	c.eventmap = make(map[gamedata.GameEvent]func())
@@ -79,8 +82,8 @@ func (c *Canvas) Update() error {
 		c.Initialize()
 	} else {
 		c.UpdateHero()
+		c.UpdateWeapons()
 		c.UpdateProjectiles()
-		c.UpdateLaser()
 		c.UpdateCharge()
 		c.UpdateEnemies()
 		c.SpawnEnemies()
@@ -227,7 +230,6 @@ func (c *Canvas) UpdateHero() {
 	if !c.gameover {
 		c.UpdateHeroPosition()
 		c.ComputeHeroCollisions()
-		c.AddProjectiles()
 	}
 }
 
@@ -275,31 +277,26 @@ func (c *Canvas) ComputeHeroCollisions() {
 func (c *Canvas) AddProjectiles() {
 
 	//add new projectiles
-	/*
-		if c.lastInputs.Shot && c.counter%14 == 0 {
 
-			loc := gamedata.Coordinates{
-				X: c.hero.Pos.X,
-				Y: c.hero.Pos.Y,
-			}
-			angle := c.lastInputs.ShotAngle
-			velocity := 5.
-
-			c.projectiles = append(c.projectiles, elements.NewProjectile(loc, angle, velocity))
-
-			if c.hero.Upgrade {
-				c.projectiles = append(c.projectiles, elements.NewProjectile(loc, angle+math.Pi, velocity))
-			}
-
-			if c.eventmap[gamedata.GameEventNewShot] != nil {
-				c.eventmap[gamedata.GameEventNewShot]()
-			}
+	if c.lastInputs.Shot && c.counter%14 == 0 {
 
+		loc := gamedata.Coordinates{
+			X: c.hero.Pos.X,
+			Y: c.hero.Pos.Y,
 		}
-	*/
-	if c.lastInputs.Shot {
-		c.laser.SetPosition(c.hero.Pos)
-		c.laser.SetAngle(c.lastInputs.ShotAngle)
+		angle := c.lastInputs.ShotAngle
+		velocity := 5.
+
+		c.projectiles = append(c.projectiles, elements.NewProjectile(loc, angle, velocity))
+
+		if c.hero.Upgrade {
+			c.projectiles = append(c.projectiles, elements.NewProjectile(loc, angle+math.Pi, velocity))
+		}
+
+		if c.eventmap[gamedata.GameEventNewShot] != nil {
+			c.eventmap[gamedata.GameEventNewShot]()
+		}
+
 	}
 
 }
@@ -362,7 +359,11 @@ func (c *Canvas) UpdateProjectiles() {
 }
 
 func (c *Canvas) UpdateLaser() {
-
+	c.laser.Update()
+	if c.lastInputs.Shot {
+		c.laser.SetPosition(c.hero.Pos)
+		c.laser.SetAngle(c.lastInputs.ShotAngle)
+	}
 	c.laser.SetFiring(c.lastInputs.Shot)
 	if c.lastInputs.Shot {
 		c.laserMask.Clear()
@@ -826,11 +827,11 @@ func (c *Canvas) LaserAttempt4() {
 		if math.Abs(math.Mod(a, math.Pi)) == math.Pi/2 { // Check for vertical beam
 			d = math.Abs(x1 - x0)
 			c.lasercoords[3] = gamedata.Coordinates{X: x0, Y: y1} // Align on x-axis
-			fmt.Printf("vertical beam\n")
+			//fmt.Printf("vertical beam\n")
 		} else if math.Tan(a) == 0 { // Check for horizontal beam
 			d = math.Abs(y1 - y0)
 			c.lasercoords[3] = gamedata.Coordinates{X: x1, Y: y0} // Align on y-axis
-			fmt.Printf("horizontal beam\n")
+			//fmt.Printf("horizontal beam\n")
 		} else { // General case
 			m0 := math.Tan(a)
 			m1 := -1 / m0
@@ -838,9 +839,9 @@ func (c *Canvas) LaserAttempt4() {
 			yi := xi*m0 - x0*m0 + y0
 			c.lasercoords[3] = gamedata.Coordinates{X: xi, Y: yi}
 			d = math.Sqrt(math.Pow(x1-xi, 2) + math.Pow(y1-yi, 2))
-			fmt.Printf("%f \n", d)
+			//fmt.Printf("%f \n", d)
 		}
-		fmt.Printf("%f \n", a)
+		//fmt.Printf("%f \n", a)
 
 		if d <= 50 && e.GetEnemyState() <= gamedata.EnemyStateHit {
 
@@ -857,7 +858,7 @@ func (c *Canvas) LaserAttempt4() {
 				if c.eventmap[gamedata.GameEventTargetHit] != nil {
 					c.eventmap[gamedata.GameEventTargetHit]()
 				}
-				fmt.Println("laser'd")
+				//fmt.Println("laser'd")
 			}
 		}
 	}
@@ -884,3 +885,23 @@ func (c *Canvas) CleanSplashes() {
 
 	c.splashes = c.splashes[:i]
 }
+
+func (c *Canvas) UpdateWeapons() {
+	if !c.gameover {
+		//check for weapon inputs
+		if c.lastInputs.CycleWeapon {
+			c.holster.CycleWeapon()
+		}
+
+		//now let's update some shit based on the weapon
+		switch c.holster.GetActiveWeapon().GetWeaponType() {
+		case gamedata.WeaponTypeGun:
+			c.AddProjectiles()
+		case gamedata.WeaponTypeLaser:
+			c.UpdateLaser()
+		}
+	} else {
+		c.laser.SetFiring(false)
+	}
+
+}