From 69860792dfae57b02700c0283d51a98b2b7f7d7a Mon Sep 17 00:00:00 2001 From: Reuben Dunnington Date: Mon, 14 Aug 2023 11:53:12 -0700 Subject: [PATCH] tweak pong main.c to keep matrix formatting --- samples/pong/src/main.c | 244 ++++++++++++++++++++++------------------ 1 file changed, 136 insertions(+), 108 deletions(-) diff --git a/samples/pong/src/main.c b/samples/pong/src/main.c index 8432f6c..1d15aa2 100644 --- a/samples/pong/src/main.c +++ b/samples/pong/src/main.c @@ -13,13 +13,13 @@ 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 = {300, 50, 200, 24}; +const mg_color paddleColor = { 1, 0, 0, 1 }; +mp_rect paddle = { 300, 50, 200, 24 }; -const mg_color ballColor = {1, 1, 0, 1}; -mp_rect ball = {200, 200, 20, 20}; +const mg_color ballColor = { 1, 1, 0, 1 }; +mp_rect ball = { 200, 200, 20, 20 }; -vec2 velocity = {5, 5}; +vec2 velocity = { 5, 5 }; // This is upside down from how it will actually be drawn. int blockHealth[NUM_BLOCKS] = { @@ -28,10 +28,10 @@ int blockHealth[NUM_BLOCKS] = { 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3 }; -vec2 frameSize = {100, 100}; +vec2 frameSize = { 100, 100 }; bool leftDown = false; bool rightDown = false; @@ -49,7 +49,8 @@ int checkCollision(mp_rect block); mg_mat2x3 flipY(mp_rect r); mg_mat2x3 flipYAt(vec2 pos); -str8 loadFile(mem_arena* arena, str8 filename) { +str8 loadFile(mem_arena* arena, str8 filename) +{ file_handle file = file_open(filename, FILE_ACCESS_READ, 0); if(file_last_error(file) != IO_OK) { @@ -73,23 +74,23 @@ ORCA_EXPORT void OnInit(void) if(mg_image_is_nil(waterImage)) { - log_error("couldn't load water image\n"); + log_error("couldn't load water image\n"); } if(mg_image_is_nil(ballImage)) { - log_error("couldn't load ball image\n"); + log_error("couldn't load ball image\n"); } if(mg_image_is_nil(paddleImage)) { - log_error("couldn't load paddle image\n"); + log_error("couldn't load paddle image\n"); } str8 fontStr = loadFile(mem_scratch(), STR8("/Literata-SemiBoldItalic.ttf")); - unicode_range ranges[5] = {UNICODE_RANGE_BASIC_LATIN, - UNICODE_RANGE_C1_CONTROLS_AND_LATIN_1_SUPPLEMENT, - UNICODE_RANGE_LATIN_EXTENDED_A, - UNICODE_RANGE_LATIN_EXTENDED_B, - UNICODE_RANGE_SPECIALS}; + unicode_range ranges[5] = { UNICODE_RANGE_BASIC_LATIN, + UNICODE_RANGE_C1_CONTROLS_AND_LATIN_1_SUPPLEMENT, + UNICODE_RANGE_LATIN_EXTENDED_A, + UNICODE_RANGE_LATIN_EXTENDED_B, + UNICODE_RANGE_SPECIALS }; // NOTE(ben): Weird that images are "create from data" but fonts are "create from memory" // TODO: Decide whether we're using strings or explicit pointer + length pongFont = mg_font_create_from_memory(fontStr.len, (byte*)fontStr.ptr, 5, ranges); @@ -153,7 +154,7 @@ ORCA_EXPORT void OnKeyUp(int key) ORCA_EXPORT void OnFrameRefresh(void) { - f32 aspect = frameSize.x/frameSize.y; + f32 aspect = frameSize.x / frameSize.y; if(leftDown) { @@ -170,25 +171,25 @@ ORCA_EXPORT void OnFrameRefresh(void) ball.x = Clamp(ball.x, 0, frameSize.x - ball.w); ball.y = Clamp(ball.y, 0, frameSize.y - ball.h); - if (ball.x + ball.w >= frameSize.x) { + if(ball.x + ball.w >= frameSize.x) + { velocity.x = -velocity.x; } - if (ball.x <= 0) { + if(ball.x <= 0) + { velocity.x = -velocity.x; } - if (ball.y + ball.h >= frameSize.y) { + if(ball.y + ball.h >= frameSize.y) + { velocity.y = -velocity.y; } - if ( - ball.y <= paddle.y + paddle.h - && ball.x+ball.w >= paddle.x - && ball.x <= paddle.x + paddle.w - && velocity.y < 0 - ) { - f32 t = ((ball.x + ball.w/2) - paddle.x) / paddle.w; + if( + ball.y <= paddle.y + paddle.h && ball.x + ball.w >= paddle.x && ball.x <= paddle.x + paddle.w && velocity.y < 0) + { + f32 t = ((ball.x + ball.w / 2) - paddle.x) / paddle.w; f32 launchAngle = lerp(-PADDLE_MAX_LAUNCH_ANGLE, PADDLE_MAX_LAUNCH_ANGLE, t); - f32 speed = sqrtf(velocity.x*velocity.x + velocity.y*velocity.y); + f32 speed = sqrtf(velocity.x * velocity.x + velocity.y * velocity.y); velocity = (vec2){ sinf(launchAngle) * speed, cosf(launchAngle) * speed, @@ -198,26 +199,31 @@ ORCA_EXPORT void OnFrameRefresh(void) log_info("PONG!"); } - if (ball.y <= 0) { - ball.x = frameSize.x/2. - ball.w; - ball.y = frameSize.y/2. - ball.h; + if(ball.y <= 0) + { + ball.x = frameSize.x / 2. - ball.w; + ball.y = frameSize.y / 2. - ball.h; } - for (int i = 0; i < NUM_BLOCKS; i++) { - if (blockHealth[i] <= 0) { + for(int i = 0; i < NUM_BLOCKS; i++) + { + if(blockHealth[i] <= 0) + { continue; } mp_rect r = blockRect(i); int result = checkCollision(r); - if (result) { + if(result) + { log_info("Collision! direction=%d", result); blockHealth[i] -= 1; f32 vx = velocity.x; f32 vy = velocity.y; - switch (result) { + switch(result) + { case 1: case 5: velocity.y = -vy; @@ -238,42 +244,42 @@ ORCA_EXPORT void OnFrameRefresh(void) break; } } - } mg_canvas_set_current(canvas); - mg_set_color_rgba(10.0f/255.0f, 31.0f/255.0f, 72.0f/255.0f, 1); + mg_set_color_rgba(10.0f / 255.0f, 31.0f / 255.0f, 72.0f / 255.0f, 1); mg_clear(); - mg_image_draw(waterImage, (mp_rect){0, 0, frameSize.x, frameSize.y}); + mg_image_draw(waterImage, (mp_rect){ 0, 0, frameSize.x, frameSize.y }); mg_mat2x3 yUp = { 1, 0, 0, - 0, -1, frameSize.y, + 0, -1, frameSize.y }; mg_matrix_push(yUp); { - for (int i = 0; i < NUM_BLOCKS; i++) { - if (blockHealth[i] <= 0) { + for(int i = 0; i < NUM_BLOCKS; i++) + { + if(blockHealth[i] <= 0) + { continue; } 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_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); int fontSize = 18; str8 text = str8_pushf(mem_scratch(), - "%d", blockHealth[i] - ); + "%d", blockHealth[i]); mp_rect textRect = mg_text_bounding_box(pongFont, fontSize, text); vec2 textPos = { - r.x + r.w/2 - textRect.w/2, + r.x + r.w / 2 - textRect.w / 2, r.y + 9, // TODO: mg_text_bounding_box is returning extremely wack results for height. }; @@ -305,7 +311,8 @@ ORCA_EXPORT void OnFrameRefresh(void) mg_surface_present(surface); } -mp_rect blockRect(int i) { +mp_rect blockRect(int i) +{ int row = i / NUM_BLOCKS_PER_ROW; int col = i % NUM_BLOCKS_PER_ROW; return (mp_rect){ @@ -318,7 +325,8 @@ mp_rect blockRect(int i) { // Returns a cardinal direction 1-8 for the collision with the block, or zero // if no collision. 1 is straight up and directions proceed clockwise. -int checkCollision(mp_rect block) { +int checkCollision(mp_rect block) +{ // Note that all the logic for this game has the origin in the bottom left. f32 ballx2 = ball.x + ball.w; @@ -326,12 +334,9 @@ int checkCollision(mp_rect block) { f32 blockx2 = block.x + block.w; f32 blocky2 = block.y + block.h; - if ( - ballx2 < block.x - || blockx2 < ball.x - || bally2 < block.y - || blocky2 < ball.y - ) { + if( + ballx2 < block.x || blockx2 < ball.x || bally2 < block.y || blocky2 < ball.y) + { // Ball is fully outside block return 0; } @@ -355,106 +360,129 @@ int checkCollision(mp_rect block) { // // We assume significant tunneling can't happen. - vec2 ballCenter = (vec2){ball.x + ball.w/2, ball.y + ball.h/2}; - vec2 blockCenter = (vec2){block.x + block.w/2, block.y + block.h/2}; + vec2 ballCenter = (vec2){ ball.x + ball.w / 2, ball.y + ball.h / 2 }; + vec2 blockCenter = (vec2){ block.x + block.w / 2, block.y + block.h / 2 }; // Moving right - if (velocity.x > 0) { + if(velocity.x > 0) + { // Ball's top right corner - if ( - ballCenter.x <= block.x && block.x <= ballx2 - && ballCenter.y <= block.y && block.y <= bally2 - ) { return 2; } + if( + ballCenter.x <= block.x && block.x <= ballx2 && ballCenter.y <= block.y && block.y <= bally2) + { + return 2; + } // Ball's bottom right corner - if ( - ballCenter.x <= block.x && block.x <= ballx2 - && ball.y <= blocky2 && blocky2 <= ballCenter.y - ) { return 4; } + if( + ballCenter.x <= block.x && block.x <= ballx2 && ball.y <= blocky2 && blocky2 <= ballCenter.y) + { + return 4; + } // Ball's right edge - if ( - ballCenter.x <= block.x && block.x <= ballx2 - ) { return 3; } + if( + ballCenter.x <= block.x && block.x <= ballx2) + { + return 3; + } } // Moving up - if (velocity.y > 0) { + if(velocity.y > 0) + { // Ball's top left corner - if ( - ball.x <= blockx2 && blockx2 <= ballCenter.x - && ballCenter.y <= block.y && block.y <= bally2 - ) { return 8; } + if( + ball.x <= blockx2 && blockx2 <= ballCenter.x && ballCenter.y <= block.y && block.y <= bally2) + { + return 8; + } // Ball's top right corner - if ( - ballCenter.x <= block.x && block.x <= ballx2 - && ballCenter.y <= block.y && block.y <= bally2 - ) { return 2; } + if( + ballCenter.x <= block.x && block.x <= ballx2 && ballCenter.y <= block.y && block.y <= bally2) + { + return 2; + } // Ball's top edge - if ( - ballCenter.y <= block.y && block.y <= bally2 - ) { return 1; } + if( + ballCenter.y <= block.y && block.y <= bally2) + { + return 1; + } } // Moving left - if (velocity.x < 0) { + if(velocity.x < 0) + { // Ball's bottom left corner - if ( - ball.x <= blockx2 && blockx2 <= ballCenter.x - && ball.y <= blocky2 && blocky2 <= ballCenter.y - ) { return 6; } + if( + ball.x <= blockx2 && blockx2 <= ballCenter.x && ball.y <= blocky2 && blocky2 <= ballCenter.y) + { + return 6; + } // Ball's top left corner - if ( - ball.x <= blockx2 && blockx2 <= ballCenter.x - && ballCenter.y <= block.y && block.y <= bally2 - ) { return 8; } + if( + ball.x <= blockx2 && blockx2 <= ballCenter.x && ballCenter.y <= block.y && block.y <= bally2) + { + return 8; + } // Ball's left edge - if ( - ball.x <= blockx2 && blockx2 <= ballCenter.x - ) { return 7; } + if( + ball.x <= blockx2 && blockx2 <= ballCenter.x) + { + return 7; + } } // Moving down - if (velocity.y < 0) { + if(velocity.y < 0) + { // Ball's bottom right corner - if ( - ballCenter.x <= block.x && block.x <= ballx2 - && ball.y <= blocky2 && blocky2 <= ballCenter.y - ) { return 4; } + if( + ballCenter.x <= block.x && block.x <= ballx2 && ball.y <= blocky2 && blocky2 <= ballCenter.y) + { + return 4; + } // Ball's bottom left corner - if ( - ball.x <= blockx2 && blockx2 <= ballCenter.x - && ball.y <= blocky2 && blocky2 <= ballCenter.y - ) { return 6; } + if( + ball.x <= blockx2 && blockx2 <= ballCenter.x && ball.y <= blocky2 && blocky2 <= ballCenter.y) + { + return 6; + } // Ball's bottom edge - if ( - ball.y <= blocky2 && blocky2 <= ballCenter.y - ) { return 5; } + if( + ball.y <= blocky2 && blocky2 <= ballCenter.y) + { + return 5; + } } return 0; } -f32 lerp(f32 a, f32 b, f32 t) { +f32 lerp(f32 a, f32 b, f32 t) +{ return (1 - t) * a + t * b; } -mg_mat2x3 flipY(mp_rect r) { +mg_mat2x3 flipY(mp_rect r) +{ return (mg_mat2x3){ 1, 0, 0, - 0, -1, 2 * r.y + r.h, + 0, -1, 2 * r.y + r.h }; } -mg_mat2x3 flipYAt(vec2 pos) { +mg_mat2x3 flipYAt(vec2 pos) +{ return (mg_mat2x3){ 1, 0, 0, - 0, -1, 2 * pos.y, + 0, -1, 2 * pos.y }; }