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Make pong prettier

This commit is contained in:
Ben Visness 2023-07-04 16:14:14 -05:00
parent 6e2457ded3
commit e2a2116cb2
3 changed files with 30 additions and 9 deletions
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2
milepost

@ -1 +1 @@
Subproject commit 23984e8370816c3f324af6ae58172c7be9ada32f
Subproject commit ff5a57fb92c301bb706dc87adb55a0ea17ac18b3

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samples/pong/data/ball.png
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35
samples/pong/src/main.c
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@ -16,7 +16,7 @@ const f32 BLOCK_WIDTH = (BLOCKS_WIDTH - ((NUM_BLOCKS_PER_ROW + 1) * BLOCKS_PADDI
#define PADDLE_MAX_LAUNCH_ANGLE 0.7f
const mg_color paddleColor = {1, 0, 0, 1};
mp_rect paddle = {BLOCKS_WIDTH/2 - 100, 40, 200, 40};
mp_rect paddle = {300, 50, 200, 24};
const mg_color ballColor = {1, 1, 0, 1};
mp_rect ball = {200, 200, 20, 20};
@ -51,6 +51,7 @@ mg_surface mg_surface_main(void);
f32 lerp(f32 a, f32 b, f32 t);
mp_rect blockRect(int i);
int checkCollision(mp_rect block);
mg_mat2x3 flipY(mp_rect r);
mg_mat2x3 flipYAt(vec2 pos);
str8 loadFile(mem_arena* arena, str8 filename) {
@ -252,11 +253,21 @@ ORCA_EXPORT void OnFrameRefresh(void)
}
mp_rect r = blockRect(i);
mg_set_color_rgba(0, 0, 0, 0.2);
mg_rounded_rectangle_fill(r.x, r.y-2, r.w, r.h, 4);
mg_set_color_rgba(0.9, 0.9, 0.9, 1);
mg_rounded_rectangle_fill(r.x, r.y, r.w, r.h, 4);
// TODO: measure and center text
vec2 textPos = {r.x + r.w/2 - 5, r.y + 9};
int fontSize = 18;
str8 text = str8_pushf(mem_scratch(),
"%d", blockHealth[i]
);
mp_rect textRect = mg_text_bounding_box(pongFont, fontSize, text);
vec2 textPos = {
r.x + r.w/2 - textRect.w/2,
r.y + 9, // TODO: mg_text_bounding_box is returning extremely wack results for height.
};
mg_set_color_rgba(0, 0, 0, 1);
mg_set_font(pongFont);
@ -264,19 +275,22 @@ ORCA_EXPORT void OnFrameRefresh(void)
mg_move_to(textPos.x, textPos.y);
mg_matrix_push(flipYAt(textPos));
{
str8 text = str8_pushf(mem_scratch(),
"%d", blockHealth[i]
);
mg_text_outlines(text);
mg_fill();
}
mg_matrix_pop();
}
mg_image_draw(paddleImage, paddle);
mg_set_color_rgba(0.9, 0.9, 0.9, 1);
mg_rounded_rectangle_fill(paddle.x, paddle.y, paddle.w, paddle.h, 4);
mg_matrix_push(flipY(ball));
{
mg_image_draw(ballImage, ball);
}
mg_matrix_pop();
}
mg_matrix_pop();
mg_surface_prepare(surface);
mg_render(surface, canvas);
@ -423,6 +437,13 @@ f32 lerp(f32 a, f32 b, f32 t) {
return (1 - t) * a + t * b;
}
mg_mat2x3 flipY(mp_rect r) {
return (mg_mat2x3){
1, 0, 0,
0, -1, 2 * r.y + r.h,
};
}
mg_mat2x3 flipYAt(vec2 pos) {
return (mg_mat2x3){
1, 0, 0,