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author | Indrajith K L | 2022-12-03 17:00:20 +0530 |
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committer | Indrajith K L | 2022-12-03 17:00:20 +0530 |
commit | f5c4671bfbad96bf346bd7e9a21fc4317b4959df (patch) | |
tree | 2764fc62da58f2ba8da7ed341643fc359873142f /v_windows/v/examples/fireworks/modules/objects/rocket.v | |
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Diffstat (limited to 'v_windows/v/examples/fireworks/modules/objects/rocket.v')
-rw-r--r-- | v_windows/v/examples/fireworks/modules/objects/rocket.v | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/v_windows/v/examples/fireworks/modules/objects/rocket.v b/v_windows/v/examples/fireworks/modules/objects/rocket.v new file mode 100644 index 0000000..ebdce0a --- /dev/null +++ b/v_windows/v/examples/fireworks/modules/objects/rocket.v @@ -0,0 +1,69 @@ +module objects + +import gg +import gx +import rand + +pub struct Rocket { +pub mut: + color gx.Color + pos Vector + vel Vector + accel Vector + exploded bool + particles []Particle + dead bool +} + +pub fn (rocket Rocket) draw(mut ctx gg.Context) { + ctx.draw_circle(rocket.pos.x, get_params().height - rocket.pos.y, get_params().rocket_radius, + rocket.color) +} + +pub fn (mut rocket Rocket) explode() { + rocket.exploded = true + + for _ in 0 .. get_params().offspring_count { + rocket.spawn_particle() + } +} + +pub fn (mut rocket Rocket) tick(mut ctx gg.Context) { + if !rocket.exploded { + if rocket.vel.y <= 1 { + rocket.explode() + } + + rocket.accel += get_params().gravity + rocket.vel += rocket.accel + rocket.pos += rocket.vel + rocket.draw(mut ctx) + + rocket.accel = Vector{} + } + + for mut particle in rocket.particles { + particle.tick(mut rocket, mut ctx) + } +} + +pub fn new_rocket() Rocket { + return Rocket{ + color: random_color() + pos: Vector{ + x: rand.f32_in_range(50, get_params().width - 50) + } + vel: Vector{ + x: rand.f32_in_range(-1.5, 1.5) + y: rand.f32_in_range(5, 7) + } + } +} + +pub fn (mut rocket Rocket) spawn_particle() { + rocket.particles << Particle{ + color: rocket.color + pos: rocket.pos + accel: random_vector_in_circle().mult(2) + } +} |