Init project

game.odin

@@ -0,0 +1,109 @@
+package game
+
+import rl "vendor:raylib"
+import "core:math"
+import "core:math/rand"
+import "core:fmt"
+
+Vec2 :: [2]f32
+Rect :: rl.Rectangle
+Img :: rl.Image
+Tex :: rl.Texture
+Key :: rl.KeyboardKey
+
+SCREEN_WIDTH : i32 = 1000
+SCREEN_HEIGHT : i32 = 800
+BW := f32(SCREEN_WIDTH)
+BH := f32(SCREEN_HEIGHT)
+
+BULLET_SPEED : f32 = 7.5
+BULLET_RADIUS : f32 = 5
+
+ANGULAR_SPEED : f32 = 0.045
+THRUST_SPEED : f32 = 2.3
+
+Player :: struct {
+    pos: Vec2,
+    points: [4]Vec2,
+    angle: f32,
+    vel: Vec2
+}
+
+Bullet :: struct {
+    pos: Vec2,
+    vel: Vec2,
+}
+
+GameState :: struct {
+    dt: f32,
+    keymap: map[string]Key,
+    player: Player,
+    bullets:   [dynamic]Bullet,
+} 
+
+init_state :: proc() -> ^GameState {
+    keymap := make(map[string]Key)
+    keymap["Left"] = .A
+    keymap["Right"] = .D
+    keymap["Up"] = .W
+    keymap["Down"] = .S
+
+    state := GameState {
+        keymap = keymap,
+    }
+    cloned := new_clone(state)
+    return cloned
+}
+
+player_input :: proc(using s: ^GameState) {
+    if rl.IsKeyDown(.D) {
+        player.angle += ANGULAR_SPEED
+    }
+    if rl.IsKeyDown(.A) {
+        player.angle -= ANGULAR_SPEED
+    }
+    if rl.IsKeyDown(.W) {
+        player.vel.x += math.cos(player.angle)
+        player.vel.y += math.sin(player.angle)
+    }
+    if rl.IsKeyPressed(.SPACE) {
+        b_vel := Vec2{ math.cos(player.angle) , math.sin(player.angle) } * BULLET_SPEED
+        append(&s.bullets, Bullet{player.points[0], b_vel})
+    }
+}
+
+update :: proc(using s: ^GameState) {
+    player.pos += player.vel * (THRUST_SPEED * s.dt)
+}
+
+draw :: proc(using s: ^GameState) {
+    rl.DrawCircleV(player.pos, 10, rl.BLACK)
+    rect := Rect{player.pos.x, player.pos.y, 20, 5}
+    rl.DrawRectanglePro(rect, Vec2{0,2.5}, player.angle * rl.RAD2DEG, rl.BLACK)
+}
+
+main :: proc() {
+    rl.SetTraceLogLevel(.ERROR)
+    rl.InitWindow(SCREEN_WIDTH, SCREEN_HEIGHT, "F&M")
+    rl.SetTargetFPS(60)
+
+    state := init_state()
+    defer free(state)
+
+    for !rl.WindowShouldClose() {
+        state.dt = rl.GetFrameTime()
+
+        player_input(state)
+
+        update(state)
+
+        rl.BeginDrawing()
+        rl.ClearBackground(rl.WHITE)
+
+        draw(state)
+
+        rl.EndDrawing()
+    }
+
+    rl.CloseWindow()
+}