Got the basics of sprites working

src/main.ha

@@ -17,13 +17,13 @@ export fn main() void = {
 
 	const win = sdl3::CreateWindow(
 		c::nulstr("Meadow\0"),
-		WIDTH, HEIGHT, 0)!;
+		WIDTH, HEIGHT, sdl3::WindowFlags::RESIZABLE)!;
 	defer sdl3::DestroyWindow(win);
 
 	const render = sdl3::CreateRenderer(win, null)!;
 	defer sdl3::DestroyRenderer(render);
 	sdl3::SetRenderDrawColor(render, 0, 0, 128, 255)!;
-
+	sdl3::SetRenderVSync(render,1)!;
 	// const img = image::LoadTexture(render, c::nulstr("./assets/mascot.jpg\0"))!;
 	// defer sdl3::DestroyTexture(img);
 
@@ -58,8 +58,12 @@ export fn main() void = {
 	let path = os::args[1];
 	let state: *uxn::uxn = uxn::uxn_init(path)!;
 	uxn::uxn_reset(state);
+	let next_refresh: u64 = 0;
+	const perf_freq: u64 = sdl3::GetPerformanceFrequency();
+	const frame_interval = perf_freq / 60;
+	const ms_interval = perf_freq / 1000;
 	for (run) {
-		//UXN stuff
+		const now: u64 = sdl3::GetPerformanceCounter();
 		if(state.running){
 			// fmt::printf("Next Step!\n")!;
 			uxn::uxn_step(state)!;
@@ -115,25 +119,31 @@ export fn main() void = {
 			 		};
 			 };
 		};
+
+		if(now >= next_refresh){
+			next_refresh = now + frame_interval;
+
+			if(state.screen_vector != 0){
+				uxn::uxn_eval(state.screen_vector, state)!;
+			};
+		};
 		if(state.screen_size_changed){
 			let dims = uxn::get_window_size(state);
 			// fmt::printfln("Setting window to width: {:x} height: {:x}", dims.width, dims.height)!;
 			if((dims.width != 0) && (dims.height !=0)){
-				//TODO, check current dims
-				//
 				sdl3::DestroyTexture(meadow_texture);
 				let w: int = dims.width: int;
 				let h: int = dims.height: int;
 
 				fmt::printfln("Setting window to width: {} height: {}", w, h)!;
 				sdl3::SetWindowSize(win,w,h)!;
-				
+			
 				meadow_texture = sdl3::CreateTexture(render,
 						sdl3::PixelFormat::XRGB4444,
 						sdl3::TextureAccess::STATIC,
 						w,
 						h)!;
-			
+		
 				state.screen_update = true;
 			};
 
@@ -142,34 +152,23 @@ export fn main() void = {
 		};
 
 		if(state.screen_update){
-			let pcount = 0;
 			const dims = uxn::get_window_size(state);
 			for(let y: u16 = 0; y <= dims.height: u16; y+=1 ){
 				for(let x: u16 = 0; x <= dims.width: u16; x+=1 ){
 					let colshort: u16 = uxn::get_color(x,y,state);
-					//take 16-bit color and transform to 32-bit number
-					//XRGB -> XXRXGXBX
-					// const r = (colshort & 0x0F00): u32 << (3*4);
-					// const g = (colshort & 0x00F0): u32 << (2*4);
-					// const b = (colshort & 0x000F): u32 << (1*4);
-					// const color: u32 = r | g | b;
-					// const data = pixeldata: *[*]u32; //
-					// if(colshort !=0x0fff){
-					// 	fmt::printfln("Pixel x: {:x} y: {:x} color: {:x}", x, y, colshort)!;
-					// };
 					// fmt::printfln("Pixel x: {} y: {} color: {:x} pcount: {:x}", x, y, colshort, pcount)!;
-					if(y == 0 && x < 64) colshort = 0;
 					const index: u32 = y: u32 * dims.width: u32 + x: u32;
 					// if(index < 10) fmt::printfln("pcount: {} index: {} x: {} y: {}", pcount, index, x, y)!;
 					pixeldata[index] = colshort;
-					pcount +=1;	
 				};
-				// pixeldata[pcount] = 0;
-				// pcount += 4096;
 			};
 			const pitch: int = dims.width: int * 2;
-			fmt::printfln("Pitch is {}", pitch)!;
+			// fmt::printfln("Pitch is {}", pitch)!;
 			if(pitch > 0) sdl3::UpdateTexture(meadow_texture, null, pixeldata, pitch)!;
+			sdl3::RenderClear(render)!;
+			sdl3::RenderTexture(render, meadow_texture, null, null)!;
+
+			sdl3::RenderPresent(render)!;
 			state.screen_update = false;
 		};
 		
@@ -178,38 +177,39 @@ export fn main() void = {
 		for (sdl3::PollEvent(&ev)) {
 			if (ev.event_type == sdl3::EventType::QUIT) {
 				run = false;
+			}else if(ev.event_type == sdl3::EventType::WINDOW_RESIZED){
+				let dims = uxn::get_window_size(state);
+				let w = ev.window.data1;
+				let h = ev.window.data2;
+				if((dims.width != w: u16) || (dims.height != h: u16)){
+					// fmt::println("Dimensions not allowed!")!;
+					//TODO handle this maybe
+					sdl3::DestroyTexture(meadow_texture);
+					let old_w: int = dims.width: int;
+					let old_h: int = dims.height: int;
+
+					fmt::printfln("Setting window to width: {} height: {}", w, h)!;
+					sdl3::SetWindowSize(win,w,h)!;
+			
+					meadow_texture = sdl3::CreateTexture(render,
+							sdl3::PixelFormat::XRGB4444,
+							sdl3::TextureAccess::STATIC,
+							w,
+							h)!;
+		
+					state.screen_update = true;
+				};
+				
 			};
 		};
 
-		sdl3::RenderClear(render)!;
 
+		// sdl3::RenderClear(render)!;
+		// sdl3::RenderTexture(render, meadow_texture, null, null)!;
 
-		sdl3::RenderTexture(render, meadow_texture, null, null)!;
+		// sdl3::RenderPresent(render)!;
+		// sdl3::Delay(1000 / 60);
 
-		// sdl3::RenderTexture(render, img, null, &sdl3::FRect {
-		// 	x = x: f32,
-		// 	y = y: f32,
-		// 	w = w: f32,
-		// 	h = h: f32,
-		// })!;
-
-		sdl3::RenderPresent(render)!;
-		sdl3::Delay(1000 / 60);
-
-		// x += xd;
-		// y += yd;
-		// if (x + w >= WIDTH) {
-		// 	xd = -1;
-		// };
-		// if (x <= 0) {
-		// 	xd = 1;
-		// };
-		// if (y + h >= HEIGHT) {
-		// 	yd = -1;
-		// };
-		// if (y <= 0) {
-		// 	yd = 1;
-		// };
 
 		sdl3::get_error()!;
 	};