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Augmented collision detection

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This commit is contained in:
id101010
2016-01-27 01:28:41 +01:00
parent aa80e88e9c
commit 0e7f6a5924
1 changed files with 37 additions and 19 deletions
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56
src/game.c
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@@ -14,8 +14,8 @@ void game_init(game_t* game, uint16_t ticks_per_sec) {
//uart init
//lcd init
LCD_Init();
LCD_Clear(GUI_COLOR_BLACK);
LCD_Init();
LCD_Clear(GUI_COLOR_BLACK);
//struct init
game->state=prestart;
@@ -68,8 +68,8 @@ bool game_check_line_collision(player_t* player, point_t start, point_t end, uin
return false;
}
bool game_player_check_collision(game_t* game, player_t* player, uint8_t pixels){
bool game_check_bounding_collision(game_t* game, player_t* player, uint8_t pixels){
// Check bounding collision
switch(player->direction){
case up:
@@ -94,7 +94,11 @@ bool game_player_check_collision(game_t* game, player_t* player, uint8_t pixels)
break;
}
// Check collision with players (including self)
return false;
}
bool game_check_player_collision(game_t* game, player_t* player, uint8_t pixels){
// Check for collisions with players (including self)
for(int i = 0; i < PLAYER_COUNT; i++){
player_t* colliding = &(game->player[i]); // pointer to player whose lines we want to check (against opponent or self)
@@ -107,7 +111,7 @@ bool game_player_check_collision(game_t* game, player_t* player, uint8_t pixels)
if(game_check_line_collision(player, last_point, curr_point, pixels)){ // check if player collides with line segment
return true;
}
last_point = curr_point; // set new start point
}
@@ -116,6 +120,20 @@ bool game_player_check_collision(game_t* game, player_t* player, uint8_t pixels)
return true;
}
}
}
// Do all collision checks!
bool game_check_collision(game_t* game, player_t* player, uint8_t pixels){
// Check for collisions with boundings
if(game_check_bounding_collision(game, player, pixels)){
return true;
}
// Check for collisions with players (including self)
if(game_check_player_collision(game, player, pixels)){
return true;
}
return false; // no collision!
}
@@ -146,7 +164,7 @@ bool game_player_update(game_t* game, player_t* player, uint8_t pixels){
if(pixels) {
// Check if a collision is about to happen
if(game_player_check_collision(game, player, pixels)){
if(game_check_collision(game, player, pixels)){
player->state=dead;
stateChanged=true;
}
@@ -229,7 +247,7 @@ bool game_step(game_t* game, uint64_t deltaTime) {
game->state = running;
game->time = 0;
LCD_Clear(GUI_COLOR_BLACK);
LCD_Clear(GUI_COLOR_BLACK);
LCD_DrawRect(TFT_GAME_FIELD_LEFT,
TFT_GAME_FIELD_TOP,
(TFT_WIDTH - TFT_GAME_FIELD_LEFT - TFT_GAME_FIELD_RIGHT - 1),
@@ -249,13 +267,13 @@ bool game_step(game_t* game, uint64_t deltaTime) {
case running:
{
uint16_t ticks;
uint16_t pixels = 0;
uint16_t ticks;
uint16_t pixels = 0;
if(deltaTime) {
ticks = game->ticks_leftover + deltaTime;
pixels = ticks / game->ticks_per_pixel;
game->ticks_leftover = ticks % game->ticks_per_pixel;
if(deltaTime) {
ticks = game->ticks_leftover + deltaTime;
pixels = ticks / game->ticks_per_pixel;
game->ticks_leftover = ticks % game->ticks_per_pixel;
game->ticks_sum_sec += deltaTime;
uint16_t new_seconds = game->ticks_sum_sec / game->ticks_per_sec;
@@ -269,11 +287,11 @@ bool game_step(game_t* game, uint64_t deltaTime) {
LCD_SetTextColor(GUI_COLOR_WHITE);
LCD_DisplayStringXY(TFT_GAME_HEADER_TIME_X, TFT_GAME_HEADER_TIME_Y, buf);
}
}
}
// For each player do ...
bool all_players_dead = true;
for(int i = 0; i < PLAYER_COUNT; i++) {
for(int i = 0; i < PLAYER_COUNT; i++) {
player_t* player = &(game->player[i]);
if(game_player_update(game, player, pixels)) { //update player and execute if, when player state has changed
static char buf[15];
@@ -289,7 +307,7 @@ bool game_step(game_t* game, uint64_t deltaTime) {
if(player->state!=dead) {
all_players_dead=false;
}
}
}
if(all_players_dead) {
game->state=ended;
@@ -297,11 +315,11 @@ bool game_step(game_t* game, uint64_t deltaTime) {
} else {
return false;
}
}
}
case ended:
while(!io_button_has_edge(BTN_START));
LCD_Clear(GUI_COLOR_BLACK);
LCD_Clear(GUI_COLOR_BLACK);
game->state= prestart;
return true;
}