Implement basic breakout
This commit is contained in:
Ben Visness
parent
071e8560d4
commit
f6e89e6168
Binary file not shown.
|
After Width: | Height: | Size: 150 KiB |
|
|
@ -1,170 +1,149 @@
|
|||
/************************************************************//**
|
||||
*
|
||||
* @file: wasm_main.cpp
|
||||
* @author: Martin Fouilleul
|
||||
* @date: 14/08/2022
|
||||
* @revision:
|
||||
*
|
||||
*****************************************************************/
|
||||
|
||||
#include<keys.h>
|
||||
#include<graphics.h>
|
||||
|
||||
#include<orca.h>
|
||||
|
||||
#define M_PI 3.14159265358979323846
|
||||
#define NUM_BLOCKS_PER_ROW 7
|
||||
#define NUM_BLOCKS 42 // 7 * 6
|
||||
|
||||
#define BLOCKS_WIDTH 810.0f
|
||||
#define BLOCK_HEIGHT 30.0f
|
||||
#define BLOCKS_PADDING 15.0f
|
||||
#define BLOCKS_BOTTOM 300.0f
|
||||
const f32 BLOCK_WIDTH = (BLOCKS_WIDTH - ((NUM_BLOCKS_PER_ROW + 1) * BLOCKS_PADDING)) / NUM_BLOCKS_PER_ROW;
|
||||
|
||||
const mg_color paddleColor = {1, 0, 0, 1};
|
||||
mp_rect paddle = {200, 40, 200, 40};
|
||||
mp_rect paddle = {BLOCKS_WIDTH/2 - 100, 40, 200, 40};
|
||||
|
||||
const mg_color ballColor = {1, 1, 0, 1};
|
||||
mp_rect ball = {200, 200, 60, 60};
|
||||
mp_rect ball = {200, 200, 20, 20};
|
||||
|
||||
vec2 velocity = {10, 10};
|
||||
vec2 velocity = {5, 5};
|
||||
|
||||
int blockHealth[NUM_BLOCKS];
|
||||
|
||||
vec2 frameSize = {100, 100};
|
||||
|
||||
bool leftDown = false;
|
||||
bool rightDown = false;
|
||||
|
||||
mg_canvas canvas;
|
||||
mg_surface surface;
|
||||
mg_canvas canvas;
|
||||
mg_image waterImage;
|
||||
mg_image ballImage;
|
||||
mg_image paddleImage;
|
||||
mg_font pongFont;
|
||||
|
||||
// TODO(ben): Why is this here? Why isn't it forward-declared by some header?
|
||||
mg_surface mg_surface_main(void);
|
||||
|
||||
mp_rect blockRect(int i);
|
||||
int checkCollision(mp_rect block);
|
||||
|
||||
str8 loadFile(mem_arena* arena, str8 filename) {
|
||||
file_handle file = file_open(filename, FILE_ACCESS_READ, 0);
|
||||
if(file_last_error(file) != IO_OK)
|
||||
{
|
||||
log_error("Couldn't open file %s\n", str8_to_cstring(mem_scratch(), filename));
|
||||
}
|
||||
u64 size = file_size(file);
|
||||
char* buffer = mem_arena_alloc(arena, size);
|
||||
file_read(file, size, buffer);
|
||||
file_close(file);
|
||||
return str8_from_buffer(size, buffer);
|
||||
}
|
||||
|
||||
ORCA_EXPORT void OnInit(void)
|
||||
{
|
||||
//TODO create surface for main window
|
||||
surface = mg_surface_main();
|
||||
canvas = mg_canvas_create();
|
||||
surface = mg_surface_main();
|
||||
canvas = mg_canvas_create();
|
||||
|
||||
log_info("try allocating\n");
|
||||
waterImage = mg_image_create_from_data(surface, loadFile(mem_scratch(), STR8("/underwater.jpg")), false);
|
||||
ballImage = mg_image_create_from_data(surface, loadFile(mem_scratch(), STR8("/ball.png")), false);
|
||||
paddleImage = mg_image_create_from_data(surface, loadFile(mem_scratch(), STR8("/wall.png")), false);
|
||||
|
||||
char* foo = malloc(1024);
|
||||
free(foo);
|
||||
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};
|
||||
// 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);
|
||||
|
||||
log_info("allocated and freed 1024 bytes\n");
|
||||
for (int i = 0; i < NUM_BLOCKS; i++) {
|
||||
blockHealth[i] = 2;
|
||||
}
|
||||
|
||||
//NOTE: load ball texture
|
||||
{
|
||||
file_handle file = file_open(STR8("/ball.png"), FILE_ACCESS_READ, 0);
|
||||
if(file_last_error(file) != IO_OK)
|
||||
{
|
||||
log_error("Couldn't open file ball.png\n");
|
||||
}
|
||||
u64 size = file_size(file);
|
||||
char* buffer = mem_arena_alloc(mem_scratch(), size);
|
||||
file_read(file, size, buffer);
|
||||
file_close(file);
|
||||
ballImage = mg_image_create_from_data(surface, str8_from_buffer(size, buffer), false);
|
||||
}
|
||||
|
||||
//NOTE: load paddle texture
|
||||
{
|
||||
file_handle file = file_open(STR8("/wall.png"), FILE_ACCESS_READ, 0);
|
||||
if(file_last_error(file) != IO_OK)
|
||||
{
|
||||
log_error("Couldn't open file wall.png\n");
|
||||
}
|
||||
u64 size = file_size(file);
|
||||
char* buffer = mem_arena_alloc(mem_scratch(), size);
|
||||
file_read(file, size, buffer);
|
||||
file_close(file);
|
||||
paddleImage = mg_image_create_from_data(surface, str8_from_buffer(size, buffer), false);
|
||||
}
|
||||
|
||||
//NOTE: load paddle texture
|
||||
{
|
||||
file_handle file = file_open(STR8("/Literata-SemiBoldItalic.ttf"), FILE_ACCESS_READ, 0);
|
||||
if(file_last_error(file) != IO_OK)
|
||||
{
|
||||
log_error("Couldn't open file Literata-SemiBoldItalic.ttf\n");
|
||||
}
|
||||
u64 size = file_size(file);
|
||||
char* buffer = mem_arena_alloc(mem_scratch(), size);
|
||||
file_read(file, size, buffer);
|
||||
file_close(file);
|
||||
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(size, (byte*)buffer, 5, ranges);
|
||||
}
|
||||
|
||||
mem_arena_clear(mem_scratch());
|
||||
mem_arena_clear(mem_scratch());
|
||||
}
|
||||
|
||||
ORCA_EXPORT void OnFrameResize(u32 width, u32 height)
|
||||
{
|
||||
log_info("frame resize %u, %u", width, height);
|
||||
frameSize.x = width;
|
||||
frameSize.y = height;
|
||||
log_info("frame resize %u, %u", width, height);
|
||||
frameSize.x = width;
|
||||
frameSize.y = height;
|
||||
}
|
||||
|
||||
ORCA_EXPORT void OnMouseDown(int button)
|
||||
{
|
||||
log_info("mouse down!");
|
||||
log_info("mouse down!");
|
||||
}
|
||||
|
||||
ORCA_EXPORT void OnKeyDown(int key)
|
||||
{
|
||||
if(key == KEY_SPACE)
|
||||
{
|
||||
log_error("(this is just for testing errors)");
|
||||
return;
|
||||
}
|
||||
if(key == KEY_ENTER)
|
||||
{
|
||||
log_warning("(this is just for testing warning)");
|
||||
return;
|
||||
}
|
||||
if(key == KEY_SPACE)
|
||||
{
|
||||
log_error("(this is just for testing errors)");
|
||||
return;
|
||||
}
|
||||
if(key == KEY_ENTER)
|
||||
{
|
||||
log_warning("(this is just for testing warning)");
|
||||
return;
|
||||
}
|
||||
|
||||
log_info("key down: %i", key);
|
||||
if(key == KEY_LEFT)
|
||||
{
|
||||
leftDown = true;
|
||||
}
|
||||
if(key == KEY_RIGHT)
|
||||
{
|
||||
rightDown = true;
|
||||
}
|
||||
log_info("key down: %i", key);
|
||||
if(key == KEY_LEFT)
|
||||
{
|
||||
leftDown = true;
|
||||
}
|
||||
if(key == KEY_RIGHT)
|
||||
{
|
||||
rightDown = true;
|
||||
}
|
||||
}
|
||||
|
||||
ORCA_EXPORT void OnKeyUp(int key)
|
||||
{
|
||||
if(key == KEY_ENTER || key == KEY_SPACE)
|
||||
{
|
||||
return;
|
||||
}
|
||||
if(key == KEY_ENTER || key == KEY_SPACE)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
log_info("key up: %i", key);
|
||||
if(key == KEY_LEFT)
|
||||
{
|
||||
leftDown = false;
|
||||
}
|
||||
if(key == KEY_RIGHT)
|
||||
{
|
||||
rightDown = false;
|
||||
}
|
||||
log_info("key up: %i", key);
|
||||
if(key == KEY_LEFT)
|
||||
{
|
||||
leftDown = false;
|
||||
}
|
||||
if(key == KEY_RIGHT)
|
||||
{
|
||||
rightDown = false;
|
||||
}
|
||||
}
|
||||
|
||||
ORCA_EXPORT void OnFrameRefresh(void)
|
||||
{
|
||||
f32 aspect = frameSize.x/frameSize.y;
|
||||
f32 aspect = frameSize.x/frameSize.y;
|
||||
|
||||
if(leftDown)
|
||||
{
|
||||
paddle.x -= 10;
|
||||
paddle.x -= 10;
|
||||
}
|
||||
else if(rightDown)
|
||||
{
|
||||
paddle.x += 10;
|
||||
paddle.x += 10;
|
||||
}
|
||||
paddle.x = Clamp(paddle.x, 0, frameSize.x - paddle.w);
|
||||
|
||||
|
|
@ -175,15 +154,15 @@ ORCA_EXPORT void OnFrameRefresh(void)
|
|||
|
||||
if(ball.x + ball.w >= frameSize.x)
|
||||
{
|
||||
velocity.x = -10;
|
||||
velocity.x = -velocity.x;
|
||||
}
|
||||
if(ball.x <= 0)
|
||||
{
|
||||
velocity.x = +10;
|
||||
velocity.x = -velocity.x;
|
||||
}
|
||||
if(ball.y + ball.h >= frameSize.y)
|
||||
{
|
||||
velocity.y = -10;
|
||||
velocity.y = -velocity.y;
|
||||
}
|
||||
|
||||
if(ball.y <= paddle.y + paddle.h
|
||||
|
|
@ -191,55 +170,230 @@ ORCA_EXPORT void OnFrameRefresh(void)
|
|||
&& ball.x <= paddle.x + paddle.w
|
||||
&& velocity.y < 0)
|
||||
{
|
||||
velocity.y *= -1;
|
||||
ball.y = paddle.y + paddle.h;
|
||||
velocity.y *= -1;
|
||||
ball.y = paddle.y + paddle.h;
|
||||
|
||||
log_info("PONG!");
|
||||
log_info("PONG!");
|
||||
}
|
||||
|
||||
if(ball.y <= 0)
|
||||
{
|
||||
ball.x = frameSize.x/2. - ball.w;
|
||||
ball.y = frameSize.y/2. - ball.h;
|
||||
}
|
||||
ball.x = frameSize.x/2. - ball.w;
|
||||
ball.y = frameSize.y/2. - ball.h;
|
||||
}
|
||||
|
||||
mg_canvas_set_current(canvas);
|
||||
for (int i = 0; i < NUM_BLOCKS; i++) {
|
||||
if (blockHealth[i] <= 0) {
|
||||
continue;
|
||||
}
|
||||
|
||||
mg_set_color_rgba(0, 1, 1, 1);
|
||||
mg_clear();
|
||||
mp_rect r = blockRect(i);
|
||||
int result = checkCollision(r);
|
||||
if (result) {
|
||||
log_info("Collision! direction=%d", result);
|
||||
blockHealth[i] -= 1;
|
||||
|
||||
mg_mat2x3 transform = {1, 0, 0,
|
||||
0, -1, frameSize.y};
|
||||
f32 vx = velocity.x;
|
||||
f32 vy = velocity.y;
|
||||
|
||||
mg_matrix_push(transform);
|
||||
switch (result) {
|
||||
case 1:
|
||||
case 5:
|
||||
velocity.y = -vy;
|
||||
break;
|
||||
case 3:
|
||||
case 7:
|
||||
velocity.x = -vx;
|
||||
break;
|
||||
case 2:
|
||||
case 6:
|
||||
velocity.x = -vy;
|
||||
velocity.y = -vx;
|
||||
break;
|
||||
case 4:
|
||||
case 8:
|
||||
velocity.x = vy;
|
||||
velocity.y = vx;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
mg_image_draw(paddleImage, paddle);
|
||||
/*
|
||||
mg_set_color(paddleColor);
|
||||
mg_rectangle_fill(paddle.x, paddle.y, paddle.w, paddle.h);
|
||||
*/
|
||||
}
|
||||
|
||||
mg_image_draw(ballImage, ball);
|
||||
/*
|
||||
mg_set_color(ballColor);
|
||||
mg_circle_fill(ball.x+ball.w/2, ball.y + ball.w/2, ball.w/2.);
|
||||
*/
|
||||
mg_canvas_set_current(canvas);
|
||||
|
||||
mg_set_color_rgba(10.0f/255.0f, 31.0f/255.0f, 72.0f/255.0f, 1);
|
||||
mg_clear();
|
||||
|
||||
mg_mat2x3 transform = {1, 0, 0,
|
||||
0, -1, frameSize.y};
|
||||
|
||||
mg_matrix_push(transform);
|
||||
{
|
||||
mg_set_color_rgba(0.9, 0.9, 0.9, 1);
|
||||
for (int i = 0; i < NUM_BLOCKS; i++) {
|
||||
if (blockHealth[i] <= 0) {
|
||||
continue;
|
||||
}
|
||||
|
||||
mp_rect r = blockRect(i);
|
||||
mg_rectangle_fill(r.x, r.y, r.w, r.h);
|
||||
}
|
||||
|
||||
mg_image_draw(paddleImage, paddle);
|
||||
mg_image_draw(ballImage, ball);
|
||||
}
|
||||
mg_matrix_pop();
|
||||
|
||||
mg_set_color_rgba(0, 0, 0, 1);
|
||||
mg_set_font(pongFont);
|
||||
mg_set_font_size(14);
|
||||
mg_move_to(10, 20);
|
||||
mg_set_color_rgba(0, 0, 0, 1);
|
||||
mg_set_font(pongFont);
|
||||
mg_set_font_size(14);
|
||||
mg_move_to(10, 20);
|
||||
|
||||
str8 text = str8_pushf(mem_scratch(),
|
||||
"wahoo I'm did a text. ball is at x = %f, y = %f",
|
||||
ball.x, ball.y
|
||||
);
|
||||
mg_text_outlines(text);
|
||||
mg_fill();
|
||||
str8 text = str8_pushf(mem_scratch(),
|
||||
"wahoo I'm did a text. ball is at x = %f, y = %f",
|
||||
ball.x, ball.y
|
||||
);
|
||||
mg_text_outlines(text);
|
||||
mg_fill();
|
||||
|
||||
mg_surface_prepare(surface);
|
||||
mg_render(surface, canvas);
|
||||
mg_surface_present(surface);
|
||||
}
|
||||
|
||||
mp_rect blockRect(int i) {
|
||||
int row = i / NUM_BLOCKS_PER_ROW;
|
||||
int col = i % NUM_BLOCKS_PER_ROW;
|
||||
return (mp_rect){
|
||||
BLOCKS_PADDING + (BLOCKS_PADDING + BLOCK_WIDTH) * col,
|
||||
BLOCKS_BOTTOM + (BLOCKS_PADDING + BLOCK_HEIGHT) * row,
|
||||
BLOCK_WIDTH,
|
||||
BLOCK_HEIGHT
|
||||
};
|
||||
}
|
||||
|
||||
// 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) {
|
||||
// Note that all the logic for this game has the origin in the bottom left.
|
||||
|
||||
f32 ballx2 = ball.x + ball.w;
|
||||
f32 bally2 = ball.y + ball.h;
|
||||
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
|
||||
) {
|
||||
// Ball is fully outside block
|
||||
return 0;
|
||||
}
|
||||
|
||||
// if (
|
||||
// (block.x <= ball.x && ballx2 <= blockx2)
|
||||
// && (block.y <= ball.y && bally2 <= blocky2)
|
||||
// ) {
|
||||
// // Ball is fully inside block; do not consider as a collision
|
||||
// return 0;
|
||||
// }
|
||||
|
||||
// If moving right, the ball can bounce off its top right corner, right
|
||||
// side, or bottom right corner. Corner bounces occur if the block's bottom
|
||||
// left corner is in the ball's top right quadrant, or if the block's top
|
||||
// left corner is in the ball's bottom left quadrant. Otherwise, an edge
|
||||
// bounce occurs if the block's left edge falls in either of the ball's
|
||||
// right quadrants.
|
||||
//
|
||||
// This logic generalizes to other directions.
|
||||
//
|
||||
// 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};
|
||||
|
||||
// Moving right
|
||||
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; }
|
||||
|
||||
// Ball's bottom right corner
|
||||
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; }
|
||||
}
|
||||
|
||||
// Moving up
|
||||
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; }
|
||||
|
||||
// Ball's top right corner
|
||||
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; }
|
||||
}
|
||||
|
||||
// Moving left
|
||||
if (velocity.x < 0) {
|
||||
// Ball's bottom left corner
|
||||
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; }
|
||||
|
||||
// Ball's left edge
|
||||
if (
|
||||
ball.x <= blockx2 && blockx2 <= ballCenter.x
|
||||
) { return 7; }
|
||||
}
|
||||
|
||||
// Moving down
|
||||
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; }
|
||||
|
||||
// Ball's bottom left corner
|
||||
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; }
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue