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added touch input scheme for ios #12

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added touch input scheme for ios #12

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76 changes: 73 additions & 3 deletions src/pacman.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -2819,9 +2819,79 @@ export fn input(ev: ?*const sapp.Event) void {
else => {}
}
}
}
else if ((event.type == .TOUCHES_BEGAN) or (event.type == .TOUCHES_ENDED)) {
state.input.anykey = event.type == .TOUCHES_BEGAN;
} else if ((event.type == .TOUCHES_BEGAN) or (event.type == .TOUCHES_ENDED)) {
const tp = event.touches[0];
const key_pressed = event.type == .TOUCHES_BEGAN;
if (state.input.enabled) {
state.input.anykey = key_pressed;
state.input.up = false;
state.input.down = false;
state.input.left = false;
state.input.right = false;

if (!key_pressed) return;

const vertical_half = sapp.heightf() / 2.0;
const horizontal_half = sapp.widthf() / 2.0;

const vertical_third = sapp.heightf() / 3.0;
const horizontal_third = sapp.widthf() / 3.0;

switch (state.game.pacman.actor.dir) {
.Left => {
// Left 2/3rds of the screen is UP/DOWN
// Right 1/3 is RIGHT
if (tp.pos_x > horizontal_third * 2) {
state.input.right = true;
} else {
if (tp.pos_y < vertical_half) {
state.input.up = true;
} else {
state.input.down = true;
}
}
},
.Right => {
// Right 2/3rds of the screen is UP/DOWN
// Left 1/3 is LEFT
if (tp.pos_x < horizontal_third) {
state.input.left = true;
} else {
if (tp.pos_y < vertical_half) {
state.input.up = true;
} else {
state.input.down = true;
}
}
},
.Up => {
// Top 2/3rds of the screen is LEFT / RIGHT
// Bottoom 1/3 is DOWN
if (tp.pos_y > vertical_third * 2) {
state.input.down = true;
} else {
if (tp.pos_x < horizontal_half) {
state.input.left = true;
} else {
state.input.right = true;
}
}
},
.Down => {
// Bottom 2/3rds of the screen is LEFT / RIGHT
// Top 1/3 is UP
if (tp.pos_y < vertical_third) {
state.input.up = true;
} else {
if (tp.pos_x < horizontal_half) {
state.input.left = true;
} else {
state.input.right = true;
}
}
},
}
}
}
}

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