1 files changed, 62 insertions, 21 deletions

diff --git a/src/all.c b/src/all.c
index f14a3d2..e8e5b11 100644
--- a/src/all.c
+++ b/src/all.c
@@ -1,4 +1,15 @@
-#include "all.h"
+#include <stddef.h>
+#include <stdint.h>
+
+typedef struct {
+	int x, y, w, h;
+	unsigned char r, g, b, a;
+} DrawElement;
+
+typedef struct {
+	int len;
+	DrawElement els[256];
+} DrawList;
 
 #define MEM_SIZE (1<<16)
 
@@ -30,6 +41,7 @@ typedef struct {
 	int x, y;
 } State;
 
+// Mirror these in src/index.html.in
 enum {
 	INPUT_NONE,
 	INPUT_UP,
@@ -50,18 +62,14 @@ static DrawList *render(State state, UI *ui, Arena *a) {
 	DrawList *drawList = new(a, 1, DrawList);
 	drawList->len = 1;
 	drawList->els[0] = (DrawElement) {
-		.rect = (SDL_Rect) {
-			.x = state.x,
-			.y = state.y,
-			.w = 100,
-			.h = 100,
-		},
-		.color = (SDL_Color) {
-			.r = 255,
-			.g = 0,
-			.b = 0,
-			.a = 255,
-		},
+		.x = state.x,
+		.y = state.y,
+		.w = 100,
+		.h = 100,
+		.r = 255,
+		.g = 0,
+		.b = 0,
+		.a = 255,
 	};
 
 	return drawList;
@@ -88,6 +96,8 @@ static void update(Game *game, Arena a) {
 
 #if SDL
 
+#include <SDL3/SDL.h>
+
 int main(int argc, char **argv) {
 	(void) argc;
 	(void) argv;
@@ -154,16 +164,16 @@ int main(int argc, char **argv) {
 		for (int i = 0; i < drawList->len; i++) {
 			SDL_SetRenderDrawColor(
 				r,
-				drawList->els[i].color.r,
-				drawList->els[i].color.g,
-				drawList->els[i].color.b,
-				drawList->els[i].color.a
+				drawList->els[i].r,
+				drawList->els[i].g,
+				drawList->els[i].b,
+				drawList->els[i].a
 			);
 			SDL_FRect rect = {
-				.x = (float) drawList->els[i].rect.x,
-				.y = (float) drawList->els[i].rect.y,
-				.w = (float) drawList->els[i].rect.w,
-				.h = (float) drawList->els[i].rect.h
+				.x = (float) drawList->els[i].x,
+				.y = (float) drawList->els[i].y,
+				.w = (float) drawList->els[i].w,
+				.h = (float) drawList->els[i].h
 			};
 			SDL_RenderFillRect(r, &rect);
 		}
@@ -177,4 +187,35 @@ int main(int argc, char **argv) {
 }
 
 #elif WASM
+
+static Game *game;
+static Arena perm;
+
+__attribute((export_name("game_init")))
+void game_init(void) {
+	static char heap[MEM_SIZE];
+	perm.start = heap;
+	perm.end = heap + MEM_SIZE;
+
+	game = new(&perm, 1, Game);
+	game->state = (State) {
+		.x = 100,
+		.y = 100,
+	};
+}
+
+__attribute((export_name("game_render")))
+DrawList *game_render(int width, int height) {
+	game->ui.width = width;
+	game->ui.height = height;
+	Arena scratch = perm;
+	return render(game->state, &game->ui, &scratch);
+}
+
+__attribute((export_name("game_update")))
+void game_update(int input) {
+	game->input = input;
+	update(game, perm);
+}
+
 #endif