init, working screens from raylib screens example and basic bullets mechanics

2024-02-09 19:09:37 +02:00 · 2024-02-09 19:09:37 +02:00 · 178cf92f44
commit 178cf92f44
3 changed files with 301 additions and 0 deletions
--- a/screens.odin
+++ b/screens.odin
@ -0,0 +1,101 @@
+package space_invaders
+
+import "core:log"
+import rl "vendor:raylib"
+
+GameScreen :: enum {
+	LOGO,
+	TITLE,
+	GAMEPLAY,
+	ENDING,
+}
+
+
+update_screen :: proc(state: ^GameState) {
+    using state
+
+	switch screen {
+	case .LOGO:
+		{
+			// Wait for 2 seconds (120 frames) before jumping to TITLE screen
+			if (frame_counter > int(target_fps * 2)) {
+                previous_screen = screen
+				screen = .TITLE
+				log.info("Updated screen enum", screen)
+			}
+		}
+	case .TITLE:
+		{
+            // Press enter to change to GAMEPLAY screen
+			if (rl.IsKeyPressed(rl.KeyboardKey.ENTER)) {
+                previous_screen = screen
+                screen = .GAMEPLAY
+				log.info("Updated screen enum", screen)
+			}
+		}
+	case .GAMEPLAY:
+		{
+			update_game(state)
+		}
+	case .ENDING:
+		{
+            // Press enter to return to TITLE screen
+			if (rl.IsKeyPressed(rl.KeyboardKey.ENTER)) {
+                previous_screen = screen
+                screen = .TITLE
+				log.info("Updated screen enum", screen)
+			}
+		}
+	}
+
+    if last_frame_screen != screen {
+        log.infof("Current screen: %v, previous screen: %v", screen, previous_screen)
+    }
+    last_frame_screen = screen
+}
+
+draw_screen :: proc(state: ^GameState) {
+	{
+		switch state.screen {
+		case .LOGO:
+			{
+				// TODO: Draw LOGO screen here!
+				rl.DrawText("SPACE INVADERS", 220, 220, 40, rl.GREEN)
+				rl.DrawText("WAIT for 2 SECONDS...", 290, 400, 20, rl.GRAY)
+
+			}
+		case .TITLE:
+			{
+				// TODO: Draw TITLE screen here!
+				rl.DrawRectangle(0, 0, state.screen_width, state.screen_height, rl.GREEN)
+				rl.DrawText("TITLE SCREEN", 20, 20, 40, rl.DARKGREEN)
+				rl.DrawText(
+					"PRESS ENTER or TAP to JUMP to GAMEPLAY SCREEN",
+					120,
+					220,
+					20,
+					rl.DARKGREEN,
+				)
+
+			}
+		case .GAMEPLAY:
+			{
+				draw_game(state)
+			}
+		case .ENDING:
+			{
+				// TODO: Draw ENDING screen here!
+				rl.DrawRectangle(0, 0, state.screen_width, state.screen_height, rl.BLUE)
+				rl.DrawText("ENDING SCREEN", 20, 20, 40, rl.DARKBLUE)
+				rl.DrawText(
+					"PRESS ENTER or TAP to RETURN to TITLE SCREEN",
+					120,
+					220,
+					20,
+					rl.DARKBLUE,
+				)
+
+			}
+		}
+	}
+}